JP4082353B2 - Rotating hinge mechanism and imaging device - Google Patents

Description

  The present invention relates to a rotating hinge mechanism that rotatably supports a body portion and a rotating portion, and an imaging in which a grip portion is rotatably attached to the body portion by such a rotating hinge mechanism. Relates to the device.

  For example, in an imaging apparatus such as a digital still camera or a digital video camera, the entire apparatus is miniaturized by consolidating all functions in a set body. However, since the set body is gripped during shooting, it may be difficult to grip depending on the shape of the set, and depending on the posture and angle during shooting, it may be difficult to shoot at a stable angle. End up.

  Therefore, in the imaging apparatus, a grip portion that is a portion that the photographer holds is attached to the side surface of the main body portion so as to be rotatable via a rotation hinge mechanism, and the grip portion for the main body portion according to the posture and angle at the time of shooting It has been proposed to arbitrarily switch the angular position (for example, Patent Documents 1 to 4).

  Incidentally, a harness (wiring) is routed between the main body portion and the grip portion through an opening provided in the rotating hinge mechanism. Here, for example, a conventional rotating hinge mechanism 200 shown in FIG. 16 will be described.

  The rotating hinge mechanism 200 includes a fixed plate 201 attached to the main body portion side, a rotating plate 202 attached to the grip portion side, and a support shaft 203 that rotatably supports the rotating plate 202 with respect to the fixed plate 201. The fixing plate 201 and the rotating plate 202 are formed with openings 205 and 206 through which the harness 204 routed between the main body portion and the grip portion passes.

  The harness 204 is a long flexible printed circuit board (FPC) formed with a predetermined width so that it can follow the movement of the rotation of the grip portion and is routed between the main body portion and the grip portion. Therefore, the extra length portion 204a having a sufficient length than the minimum length required for routing is provided. As shown in FIG. 17, the harness 200 is folded in half with the extra length portion 204a sandwiched between the fixed plate 201 and the rotating plate 202, and one end side of the harness 200 is fixed to the fixed plate 201 side. The other end side is drawn to the grip part side through the opening 206 on the rotating plate 202 side.

  By the way, in such a conventional rotary hinge mechanism 200, the folding width of the harness 204 is determined by the gap S formed between the fixed plate 201 and the rotary plate 202. When the thickness of the harness 204 is reduced, the folding width of the harness 204 must also be reduced. This results in weakening the flexibility of flexible printed wiring boards and the flexibility of routing. Especially when double-sided flexible printed wiring boards are used, they are harder than single-sided flexible printed wiring boards due to the increase in the number of wirings. Therefore, when the extra length portion 204a of the harness 204 lacking in bending resistance is folded in two with a narrow gap S between the fixed plate 201 and the rotary plate 202, the rotary plate with respect to the fixed plate 201 is It is impossible to follow the rotational movement of 202, and there arises a problem that disconnection occurs along the crease or the flexible printed wiring board is cut.

JP-A-1-106585 Japanese Patent Laid-Open No. 2-20975 JP-A-6-98210 JP 2002-190974 A

  Therefore, the present invention has been proposed in view of such a conventional situation, and while maintaining the degree of freedom of the harness routed between the main body portion and the rotating portion, the harness can be easily routed. It is an object of the present invention to provide a rotating hinge mechanism that can be performed in a simple manner.

  Moreover, this invention aims at the further size reduction of the whole apparatus by providing such a rotation hinge mechanism, and maintains the freedom degree of the harness routed between a main-body part and a grip part. An object of the present invention is to provide an imaging device that prevents the occurrence of disconnection or cutting of the harness.

In order to achieve this object, the rotating hinge mechanism according to the present invention supports the body part and the rotating part so as to be rotatable, and is attached to one side of the main body part and the rotating part. A fixed plate, a rotating plate attached to the other side of the main body portion and the rotating portion, and a support shaft that rotatably supports the rotating plate with respect to the fixed plate. An opening for penetrating the harness routed between the rotating portion and the rotating portion is formed, and the opening on the fixed plate side and the opening on the rotating plate side are defined as follows. In the angle range to be rotated, at least a part is formed so as to overlap and formed outside the support shaft .

The imaging apparatus according to the present invention includes a main body provided with an imaging unit for taking an image of a subject, and a recording unit for recording an image taken by the imaging unit. A grip portion rotatably attached to the side surface, and a rotation hinge mechanism that rotatably supports between the main body portion and the grip portion. The rotation hinge mechanism includes a body portion and a rotation portion. A fixed plate attached to one side, a rotating plate attached to the other side of the main body and the rotating portion, and a support shaft that rotatably supports the rotating plate with respect to the fixed plate. The plate is formed with an opening through which a harness routed between the main body and the rotating unit is passed. The opening on the fixed plate side and the opening on the rotating plate side are defined by the rotating unit. At least a portion is heavy in the angle range that is rotated with respect to the main body. Is formed to fit, it is formed on the outside of the support shaft.

As described above, in the rotation hinge mechanism according to the present invention, the opening on the fixed plate side and the opening on the rotation plate side so that at least a part thereof overlaps in the angular range in which the rotation unit is rotated with respect to the main body. Is formed on the outer side of the support shaft, and the fixed plate side opening and the rotating plate side opening overlap the harnesses routed between the main body and the rotation unit. It is possible to bend gently between the two.

  Therefore, in an imaging apparatus provided with such a rotating hinge mechanism, the degree of freedom of the harness routed between the main body portion and the grip portion can be maintained, and the harness can be easily routed. Further, it is possible to further reduce the size of the entire apparatus and to prevent the harness from being caught, disconnected, or cut when the grip portion is rotated with respect to the main body portion. In particular, when a double-sided flexible printed wiring board is used as a harness, it is very effective because it becomes harder than a single-sided flexible printed wiring board due to an increase in the number of wirings.

  Hereinafter, a rotating hinge mechanism and an imaging apparatus to which the present invention is applied will be described in detail with reference to the drawings.

  An imaging apparatus to which the present invention is applied is, for example, a camera-integrated digital video tape recorder (hereinafter referred to as a digital video camera) 1 shown in FIGS. The digital video camera 1 is rotatable to the other side of the main body 2, the panel 3 attached to one side of the main body 2 so as to be openable and closable, and the panel 2 opposite to the panel 3. And a grip portion 4 attached to the.

  The main body 2 has an image pickup unit for taking an image of a subject, and a lens portion 5 that projects the image pickup lens 5a to the outside is provided on the front surface of the main body 2. Further, a flash light emitting unit 6 that emits strobe light at night or the like is provided on the upper surface of the main body 2 so as to be popped up. In addition, a stereo microphone 7 such as a microphone is provided on the upper surface of the main body 2 as a sound recording unit for recording sound, located behind the flash light emitting unit 6. In addition, operation buttons and switches for performing various operations are provided at various locations on the main body 2.

  In the main body 2, a lens barrel having an imaging optical system including an imaging lens 5a, a CCD (Charge Coupled Device) or CMOS that captures an image of a subject imaged by the lens barrel. An imaging device such as (Complementary Mental-Oxide Semiconductor device) is provided. The imaging unit converts an image captured through the imaging lens 5a into an electrical signal by the imaging element, and outputs it as video data to a recording / reproducing unit, a display unit, etc., which will be described later.

  Displayed on the liquid crystal display element (LCD: Liquid Crystal Display) inside the eye cup 8a as the display unit on the main body side for displaying the image picked up by the above-described image pickup unit on the upper part on the back side of the main body 2 A viewfinder section (EVF: Electronic View Finder) 8 for peeking at an image is provided.

  As shown in FIGS. 2 and 6, a battery insertion / removal port 10 through which the battery 9 is inserted / removed and a battery storage unit that stores the battery 9 through the battery insertion / removal port 10 are provided at a lower portion on the back side of the main body 2. 11 and a lid body 12 that opens and closes the battery insertion / removal port 10 is provided. That is, in the digital video camera 1, the battery 9 can be stored inside the main body 2.

  Further, as shown in FIGS. 3, 6, and 7, a connecting portion 13 is provided between the main body portion 2 and the grip portion 4, and a connector cover 14 is provided on the back side of the connecting portion 13. Is attached so that it can be opened and closed. Inside the connector cover 14, for example, a headphone output terminal for connecting headphones or a microphone, a microphone input terminal, video signals and audio signals are input to and output from other electronic devices such as a personal computer. A connector 15 such as a video / audio input / output terminal and a power jack connected to an external power source (AC adapter) is provided. Therefore, the plug 16a of the connection cord 16 is inserted from the outside into the connector portion 15 provided on the back side of the connecting portion 13 so as to be substantially parallel to the optical axis of the imaging lens 5a.

  As shown in FIGS. 2 and 3, the panel unit 3 is rotatably attached to the main body unit 2 via a biaxial rotating hinge mechanism 17. The hinge mechanism 17 supports the panel portion 3 with respect to the main body portion 2 so as to be rotatable in an opening / closing direction indicated by an arrow A in FIG. It is supported so as to be rotatable in an angle range of approximately 270 ° around an axis orthogonal to the direction. Thereby, the panel part 3 can open and close with respect to the main-body part 2, or can change direction in the open state. Moreover, the panel part 3 can be accommodated in the panel accommodating part 18 formed so that one side of the main-body part 2 might be notched in the closed state.

  In addition, a liquid crystal display panel (LCD) 19 is provided on one main surface side of the panel unit 3 as a display unit on the panel side that displays an image captured by the above-described imaging unit. Therefore, in the digital video camera 1, it is possible to display an image taken through the imaging lens 5 a on the liquid crystal display panel 19 in addition to the finder unit 8. In addition, a touch panel is provided on the front surface of the liquid crystal display panel 19, and various operations can be performed by pressing the touch panel with a finger or the like while viewing an image displayed on the liquid crystal display panel 19. It has become.

  As shown in FIGS. 2, 4 and 7, the grip portion 4 is a portion where the photographer grips the digital video camera 1, and a rotating hinge is connected to the connecting portion 13 of the main body portion 2 as a rotating portion. It is rotatably attached via the mechanism 20. The rotating hinge mechanism 20 supports the grip portion 4 so as to be rotatable with respect to the main body portion 2 in an angle range of approximately 90 ° around an axis orthogonal to the optical axis indicated by the arrow C in FIG. Therefore, in this digital video camera 1, it is possible to continuously switch the orientation of the grip part 4 with respect to the main body part 2 in accordance with the position and angle at the time of shooting.

  Note that a shutter button 21a, a zoom lever 21b, and the like for performing various operations for photographing while holding the grip portion 4 are provided at various positions of the grip portion 4. Further, a grip belt 22 is attached to the side surface of the grip portion 4 for holding a hand that holds the grip portion 4.

  Further, as shown in FIG. 5, a lid body 23 constituting the casing of the grip section 4 is attached to the grip section 4 so as to be openable and closable. A tape cassette 24 is placed inside the lid body 23. A mechanical deck 25 for mounting is provided. The mechanical deck 25 is a recording / reproducing unit for recording the video signal and the audio signal from the imaging unit and the audio recording unit described above or reproducing the video signal and the audio signal recorded on the tape cassette. The magnetic tape of the tape cassette 24 mounted on the mechanical deck 25 is sandwiched between a rotary head device for recording and reproducing signals and a magnetic tape drawn by a plurality of guide rollers between a pinch roller and a cap stun. However, a tape running mechanism for running the magnetic tape at a constant speed is provided.

  In the digital video camera 1 configured as described above, a moving image, a still image, etc., while looking at the rear viewfinder section 8 or looking at the liquid crystal display panel 19 of the panel section 3 while holding the grip section 4. It is possible to shoot.

  In the digital video camera 1, for example, the photographer himself can be photographed while looking at the liquid crystal display panel 19 by switching the orientation of the panel unit 3 with respect to the main body unit 2.

  Furthermore, in this digital video camera 1, by switching the orientation of the grip part 4 with respect to the main body part 2 in accordance with the posture and angle at the time of shooting, it is possible to shoot at a stable angle with ease of gripping the grip part 4. . In particular, at the angle of 90 ° shown in FIG. 4 with respect to the angle of 0 ° shown in FIG. There is an effect that it is easy to shoot a still image.

  Further, in the digital video camera 1, as shown in FIG. 6, the connector portion 15 is provided by providing a connector portion 15 into which an external terminal is inserted in a connecting portion 13 that connects the main body portion 2 and the grip portion 4. It is possible to prevent the plug 16a inserted into the plug 16 or the connection cord 16 extending from the plug 16a from interfering when the grip portion 4 is rotated with respect to the main body portion 2. Thereby, it is possible to further improve the usability.

  Next, a rotating hinge mechanism 20 to which the present invention is applied, which supports the body portion 2 and the grip portion 4 so as to be rotatable, will be described.

  As shown in FIGS. 8, 9, and 10, the rotating hinge mechanism 20 includes a fixed plate 31 attached to the grip portion 4 side and a pair of rotating plates 32 and 33 attached to the main body portion 2 side. The pair of rotating plates 32 and 33 are supported so as to be rotatable about a support shaft 34 attached to the fixed plate 31, thereby rotatably supporting the body portion 2 and the grip portion 4. .

  Specifically, the fixed plate 31 is made of a substantially square metal plate, and a bent portion 35 that is bent at a right angle with respect to the main surface of the fixed plate 31 is provided on one side thereof. The fixed plate 31 is attached to the grip portion 4 side by screwing the bent portion 35 to the side surface of the mechanical deck 25.

  In addition, a shaft hole 36 that penetrates the support shaft 34 is formed in a substantially central portion of the fixed plate 31, and a pair of positioning pins 37 that serve as a rotation stop of the support shaft 34 are formed around the shaft hole 36. Projecting from one main surface side. On the other hand, the support shaft 34 has a flange portion 38 projecting in the direction in which the diameter increases on the proximal end side, and a pair of positioning recesses 39 engaged with the pair of positioning pins 37 is provided in the flange portion 38. Is formed. The support shaft 34 is positioned and fixed to the fixed plate 31 by engaging a pair of positioning pins 37 with a pair of positioning recesses 39 while penetrating the shaft hole 36. The support shaft 34 has a first shaft portion 34a having substantially the same diameter as the shaft hole 36 and a second shaft portion 34b having a diameter smaller than that of the first shaft portion 34a in this order from the base end side. And a third shaft portion 34c having a diameter smaller than that of the second shaft portion 34b.

  The fixed plate 31 is formed with a first opening 40 for allowing a harness 66 described later to pass therethrough. The first opening 40 is formed in a substantially arc shape over an angle range of approximately 90 ° around the support shaft 34 that is wide enough to penetrate the harness 66 and penetrates the shaft hole 36. .

  The fixed plate 31 is formed with a stopper protrusion 41 for restricting an angle range in which the grip portion 4 is rotated with respect to the main body portion 2. The stopper protrusion 41 is formed so as to protrude from the other main surface side by punching out the fixing plate 31.

  The pair of rotating plates 32 and 33 is made of a substantially disc-shaped sheet metal, and shaft holes 42 and 43 having substantially the same diameter as the second shaft portion 34b of the support shaft 34 are formed at the center thereof. . That is, the pair of rotating plates 32 and 33 are rotatably supported by the support shaft 34 with the shaft holes 42 and 43 passing through the second shaft portion 34b. A substantially disc-shaped presser plate 44 is attached to the tip of the support shaft 34 to prevent the pair of rotary plates 32 and 33 from coming off. The holding plate 44 has a hexagonal hole 44a at the center thereof, and is attached to the tip end of the support shaft 34 by press-fitting the third shaft portion 34c of the support shaft 34 into the hexagonal hole 44a. .

  The pair of rotating plates 32 and 33 are arranged with their center portions rotatably supported by the support shaft 34 and their outer peripheral portions sandwiching the outer peripheral ring plate 45. The outer peripheral ring plate 45 protrudes in an annular ring portion 46 sandwiched between the pair of rotating plates 32 and 33, and protrudes from the outer peripheral portion of the ring portion 46 toward the fixed plate 31 and increases in diameter. It consists of a sheet metal having a flange portion 47 made. The flange portion 47 is formed with a plurality of through holes 49 through which the screws 48 pass. On the other hand, screw holes 50 corresponding to the plurality of through holes 49 are formed in the fixing plate 31. The outer peripheral ring plate 45 is attached to the fixed plate 31 by screwing screws 48 into the screw holes 50 of the fixed plate 31 through the through holes 49 of the flange portion 47.

  On the other hand, among the pair of rotating plates 32 and 33, the first rotating plate 32 disposed inside the outer peripheral ring plate 45 is formed with a plurality of through holes 52 through which the screw 51 passes. On the other hand, screw holes 53 corresponding to the plurality of through holes 52 are formed in the second rotating plate 33 arranged outside the outer peripheral ring plate 45. The pair of rotary plates 32 and 33 passes through the inside of the ring portion 46 of the outer peripheral ring plate 45, and the screw 51 that passes through the through hole 52 of the first rotary plate 32 is the screw hole 53 of the second rotary plate 33. And the ring portion 46 of the outer peripheral ring plate 45 is attached integrally. The second rotating plate 33 is attached to the main body 2 side by screwing.

  The pair of rotating plates 32 and 33 is formed with a second opening 54 for allowing a harness 66 described later to pass therethrough. The second opening 54 has a width sufficient to allow the harness 66 to pass therethrough and is formed in a substantially arc shape over an angle range of approximately 45 ° + α with the support shaft 34 as the center. The angle α is an overlap angle described later.

  Of the pair of rotating plates 32 and 33, the second rotating plate 33 is formed with a pair of restricting pieces 55 a and 55 b that come into contact with the stopper protrusion 41 of the fixed plate 31 described above. The pair of restricting pieces 55a and 55b are disposed at an angular position of approximately 90 ° with the support shaft 34 as the center, and the main plate facing the first rotating plate 32 is punched out of the second rotating plate 33. It is bent on the surface side. On the other hand, the first rotating plate 32 is formed with a pair of openings 56a and 56b for allowing the pair of restricting pieces 55a and 55b to pass therethrough.

  In the movable hinge mechanism 20, when the pair of rotary plates 32 and 33 rotate in one direction around the support shaft 34 with respect to the fixed plate 31, one restriction piece 55 a is formed at one end of the stopper projection 41. On the other hand, when the pair of rotating plates 32 and 33 rotate in the other direction around the support shaft 34 with respect to the fixed plate 31, the other regulating piece 55 b contacts the other end of the stopper projection 41. Will be. Thereby, the angle range in which the grip part 4 is rotated with respect to the main body part 2 is restricted to approximately 90 °.

  The rotating hinge mechanism 20 is a first friction mechanism for stably holding the grip portion 4 with respect to the main body portion 2 at an arbitrary angular position where the grip portion 4 is rotated with respect to the main body portion 2. 57 and a second friction mechanism 58 are provided.

  The first friction mechanism 57 generates a friction on the inner peripheral side between the fixed plate 31 and the first rotating plate 32, and therefore, a spring plate 59 and a pressure plate arranged with the support shaft 34 penetrating therethrough. 60 and a friction plate 61.

  In the spring plate 59, a through hole 59a having substantially the same diameter as the first shaft portion 34a of the support shaft 34 is formed at the center of the substantially disc-shaped sheet metal, and the cross-sectional shape in the thickness direction is substantially C-shaped. It is a so-called spring washer.

  The pressure plate 60 is made of a substantially disc-shaped sheet metal having substantially the same diameter as the spring plate 59, and a through hole 60 a having substantially the same diameter as the second shaft portion 34 b of the support shaft 34 is formed at the center thereof. Has been. In addition, a positioning piece 60 b that serves as a rotation stopper for the pressure plate 60 is formed on the outer periphery of the pressure plate 60 so as to be bent at a right angle with respect to the main surface of the pressure plate 60. On the other hand, the fixing plate 31 is formed with a notch recess 62 formed so as to partially cut out the periphery of the shaft hole 36, and the pressure plate 60 has the through hole 60 a as the second shaft of the support shaft 34. When the positioning piece 60b is engaged with the notch recess 62 of the fixing plate 31 with the portion 34b penetrating, the spring plate 59 is positioned and fixed to the fixing plate 31 while being sandwiched between the fixing plate 31 and the positioning plate 60b. ing.

  The friction plate 61 is made of a substantially disc-shaped high friction member having substantially the same diameter as the pressure plate 60, and a through hole 61 a having substantially the same diameter as the second shaft portion 34 b of the support shaft 34 is formed at the center thereof. Is formed. The friction plate 61 is disposed in a state of being sandwiched between the rotating plate 32 and the pressure plate 60 with the second shaft portion 34b of the support shaft 34 passing through the through hole 61a.

  Therefore, in the first friction mechanism 57, the spring plate 59 compressed between the fixed plate 31 and the first rotating plate 32 presses the pressure plate 60, and the pressure plate 60 presses against the friction plate 61. As a result, moderate friction can be generated.

  The second friction mechanism 58, together with the ring portion 46 of the outer peripheral ring plate 45 described above, generates the friction on the outer peripheral side between the fixed plate 31 and the first rotating plate 32. The spring plate 63 is disposed in a compressed state between the outer peripheral portion of the rotary plate 32.

  The spring plate 63 is made of a substantially annular sheet metal having substantially the same diameter as the ring portion 46 of the outer peripheral ring plate 45, and has a shape that is bent in a wave shape in the thickness direction. In addition, at a position where the outer peripheral portion of the spring plate 63 is divided into approximately two equal parts in the circumferential direction, a pair of positioning pieces 64 that serve as a rotation stop for the spring plate 63 are perpendicular to the main surface of the spring plate 63. It is bent and formed. On the other hand, the fixed plate 31 is formed with a pair of positioning holes 65 into which the pair of positioning pieces 64 are engaged. The spring plate 63 is sandwiched between the fixed plate 31 and the outer peripheral portion of the first rotating plate 32, and the pair of positioning pieces 64 are engaged with the pair of positioning holes 65. It is positioned and fixed to the fixed plate 31.

  Therefore, in the second friction mechanism 58, the spring plate 63 compressed between the fixed plate 31 and the outer peripheral portion of the first rotating plate 32 presses the first rotating plate 32, and this first rotation. Appropriate friction can be generated by pressing the outer peripheral portion of the plate 32 against the ring portion 46 of the outer peripheral ring plate 45.

  As described above, in the rotating hinge mechanism 20, the body portion 2 and the grip portion 4 are rotatably supported, and the inner peripheral side between the fixed plate 31 and the first rotating plate 32 and By providing the first friction mechanism 57 and the second friction mechanism 58 for applying friction to the outer peripheral side, the grip portion 4 can be appropriately and stably held at an arbitrary angular position with respect to the main body portion 2. It is.

  Further, in the rotary hinge mechanism 20, even when the first friction mechanism 57 and the second friction mechanism 58 are provided, the main body portion 2 and the grip through the first opening 40 and the second opening 54 are provided. The harness 66 can be easily routed between the body 4 and the harness 66 that is routed between the main body 2 and the grip 4.

  Further, in the rotating hinge mechanism 20, even when a click mechanism that provides a click feeling at a predetermined position when the grip portion 4 is rotated is provided, the inner peripheral spring plate 59 and the outer peripheral spring plate are provided. It is possible to keep the friction constant without affecting the pressing by 63.

  Therefore, in the digital video camera 1 having such a rotating hinge mechanism 20, the entire apparatus is further reduced in size, and the grip portion 4 is appropriately and stably held at an arbitrary angular position with respect to the main body portion 2. Is possible.

  By the way, in the digital video camera 1 described above, as shown in FIG. 11, a harness 66 for electrically connecting the main body 2 side and the grip 4 side is a first opening of the rotary hinge mechanism 20. Through the part 40 and the second opening 54, it is routed between the inside of the housing on the main body 2 side and the inside of the housing on the grip 4 side.

  Here, as shown in FIGS. 12 and 13, the first opening 40 and the second opening 54 have an angle range in which the grip part 4 is rotated with respect to the main body part 2 (here, 90. In the angle range of 0 °, at least a part thereof is formed to overlap.

  In this case, the harness 66 routed between the main body 2 and the grip 4 is between the first opening 40 and the second opening 54 that overlap each other (hereinafter referred to as the overlap portion 67). The harness 66 can be bent gently, and the harness 66 can be easily routed through the overlap portion 67.

  Specifically, as shown in FIG. 14, the harness 66 is a long flexible printed wiring board (hereinafter referred to as an FPC 66) formed with a predetermined width, and follows the rotational movement of the grip portion 4. In order to be able to do so, a curved portion 66a curved in the main surface is provided in the intermediate portion. As shown in FIG. 15, the curved portion 66 a is a portion that is folded back between the first opening 40 and the second opening 54 that overlap each other, and is a first opening that is centered on the support shaft 34. 40 and the second opening 54 have substantially the same radius of curvature.

  As shown in FIGS. 11, 12 and 13, the FPC 66 has a curved portion 66 a that is substantially U-shaped through an overlap portion 67 between the first opening 40 and the second opening 54. The one end side is drawn to the main body part 2 side through the second opening 54 and the other end side is drawn to the grip part 4 side through the first opening 40.

  Here, the FPC 66 folded back in the overlap portion 67 follows the rotational movement of the pair of rotating plates 32 and 33 with respect to the fixed plate 31 and displaces the folding position of the bending portion 66 a in the overlap portion 67. It will be.

At this time, the angle at which the folding position of the FPC 66 shown in FIG. 15 is displaced is β / 2 with respect to the angle β at which the pair of rotary plates 32 and 33 shown in FIG. 11 is rotated with respect to the fixed plate 31. Therefore, in order to form the overlap portion 67 between the first opening 40 and the second opening 54, at least the angular range of the first opening 40 and the second opening 54 is set to the grip portion. 4 needs to be more than half of the maximum angle (β _m ) rotated with respect to the main body 2.

Specifically, as shown in FIG. 12, the angle range of the first opening 40 is set so that the grip portion 4 has a body portion so that the connector 68 attached to the FPC 66 can be easily passed after the rotary hinge mechanism 20 is assembled. The angle range (β _m ) rotated with respect to 2 is approximately 90 °. In addition, a first guard member 69 for protecting the FPC 66 passes through the inside of the ring portion 46 of the outer peripheral ring plate 45 between the fixed plate 31 and the first rotating plate 32 in the first opening 40. It is arranged in a sandwiched state.

On the other hand, the angle range of the second opening 54 is 45 °, which is half the maximum angle (β _m / 2) at which the grip 4 is rotated with respect to the main body 2, and at least a part of the first opening 54. 45 ° + α is obtained by adding an overlap angle α for overlapping the opening 40. In addition, a second guard member 70 for protecting the harness is disposed in the second opening 54 so as to be sandwiched between the pair of rotating plates 32 and 33.

  The first opening 40 and the second opening 54 are configured such that the first opening 40 and the one end 40 a of the first opening 40 are within an angular range in which the pair of rotating plates 32 and 33 are rotated with respect to the fixed plate 31. A part so as to form an overlap portion 67 between the other end 54 b of the second opening 54 or between the other end 40 b of the first opening 40 and one end 54 a of the second opening 54. Are superimposed.

  As described above, in the rotating hinge mechanism 20, the overlap portion in which the first opening 40 and the second opening 54 overlap in the angular range in which the grip portion 4 is rotated with respect to the main body portion 2. 67 is formed, it is possible to gently bend the harness 66 routed between the main body portion 2 and the grip portion 4 at the overlap portion 67, and through the overlap portion 67. The harness 66 can be easily routed.

  Further, in the rotating hinge mechanism 20, the folding width of the harness 66 is not affected by the gap S formed between the fixed plate 31 and the first rotating plate 32, so that the gap S is narrowed. It is also possible to reduce the thickness of the mechanism itself.

  Therefore, in the digital video camera 1 having such a rotating hinge mechanism 20, the entire apparatus is further reduced in size while maintaining the degree of freedom of the harness 66 routed between the main body 2 and the grip 4. Can be achieved. In addition, it is possible to prevent the harness 66 from being caught, disconnected, cut, or the like when the grip portion 4 is rotated with respect to the main body portion 2. In particular, when a double-sided flexible printed wiring board is used as the harness 66, the number of wirings is increased and the bending resistance is inferior to that of a single-sided flexible printed wiring board. Further, in this digital video camera 1, since the harness 66 can be routed after the rotary hinge mechanism 20 is assembled, it is possible to reduce the manufacturing cost.

  The digital video camera 1 has a configuration in which the fixed plate 31 is attached to the grip portion 4 side and the pair of rotating plates 32 and 33 are attached to the main body portion 2 side. It is also possible to adopt a configuration in which the fixed plate 31 is attached to the main body portion 2 side and the pair of rotating plates 32 and 33 are attached to the grip portion 4 side.

  Further, in addition to the FPC described above, when a harness-free harness (electric wire) is used in addition to the above-described FPC, the harness becomes stiffer than the conventional one. It is effective.

  Note that the present invention is not limited to the digital video camera 1 in which the grip portion 4 is rotatably attached to the main body portion 2 via the rotary hinge mechanism 20. The mechanism 20 can be widely applied to electronic devices in which a rotating part is rotatably attached to a main body part in addition to such an imaging device such as a digital video camera or a digital still camera. It is.

It is the perspective view which looked at the digital video camera to which the present invention is applied from the front side. It is the perspective view which looked at the digital video camera from the back side. It is a perspective view which shows the state which opened the panel part of the said digital video camera. It is a perspective view which shows the state which rotated the grip part of the said digital video camera. It is a perspective view which shows the state which opened the grip part of the said digital video camera. It is a principal part perspective view which shows the state in which the battery of the said digital video camera was accommodated. It is a perspective view which shows the state by which the plug of the connection cord was inserted in the connector part of the said digital video camera. It is a disassembled perspective view which shows the structure of the rotation hinge mechanism to which this invention is applied. It is a perspective view which decomposes | disassembles and shows the principal part of the said rotation hinge mechanism. It is sectional drawing which shows the principal part of the said rotation hinge mechanism. It is a perspective view which shows typically the structure of the said rotation hinge mechanism. It is a top view which shows typically the structure of the said rotation hinge mechanism. It is sectional drawing which shows the structure of the said rotation hinge mechanism typically. It is a top view which shows the structure of FPC. It is a principal part perspective view which shows the bending state of FPC. It is a perspective view which shows the structure of the conventional rotation hinge mechanism. It is sectional drawing which shows the structure of the said conventional rotation hinge mechanism.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Digital video camera, 2 Main-body part, 3 Panel part, 4 Grip part, 13 Connection part, 15 Connector part, 20 Rotating hinge mechanism, 31 Fixed plate, 32 1st rotating plate, 33 2nd rotating plate, 34 Support shaft, 40 first opening, 44 presser plate, 45 outer ring plate, 54 second opening, 57 first friction mechanism, 58 second friction mechanism, 59 spring plate, 60 pressure plate, 61 friction Plate, 63 Spring plate, 66 Harness (FPC)

Claims (11)

In the rotation hinge mechanism that supports the main body portion and the rotation portion so as to be rotatable,
A fixing plate attached to one side of the main body portion and the rotating portion;
A rotating plate attached to the other side of the main body portion and the rotating portion;
A support shaft that rotatably supports the rotating plate with respect to the fixed plate;
The fixed plate and the rotating plate are formed with an opening through which a harness routed between the main body portion and the rotating portion passes.
The opening on the fixed plate side and the opening on the rotating plate side are formed so that at least a part thereof overlaps in an angular range in which the rotating portion is rotated with respect to the main body portion, and the support shaft A rotating hinge mechanism characterized in that it is formed on the outside .   The opening on the fixed plate side and the opening on the rotating plate side are formed in a substantially arc shape with a predetermined width and centering on the support shaft over a predetermined angle range. The rotation hinge mechanism as described.   The angular range of the opening on the fixed plate side and the opening on the rotating plate side is not less than half and not more than the maximum angle of the maximum angle at which the rotating portion is rotated with respect to the main body. The rotating hinge mechanism according to claim 2.   The harness is a flexible printed wiring board, and the flexible printed wiring board can be bent between the opening on the fixed plate side and the opening on the rotating plate side where the flexible printed wiring boards overlap each other. Item 2. A rotating hinge mechanism according to Item 1. A main body provided with an imaging unit for capturing an image of a subject;
A recording unit for recording an image captured by the imaging unit is provided, and a grip part rotatably attached to one side surface of the main body part;
A rotation hinge mechanism that rotatably supports between the main body portion and the grip portion;
The rotating hinge mechanism includes a fixed plate attached to one side of the main body and the rotating unit;
A rotating plate attached to the other side of the main body portion and the rotating portion;
A support shaft that rotatably supports the rotating plate with respect to the fixed plate;
The fixed plate and the rotating plate are formed with an opening through which a harness routed between the main body portion and the rotating portion passes.
The opening on the fixed plate side and the opening on the rotating plate side are formed so that at least a part thereof overlaps in an angular range in which the rotating portion is rotated with respect to the main body portion, and the support shaft An imaging apparatus, characterized in that the imaging apparatus is formed on the outside .   6. The opening on the fixed plate side and the opening on the rotating plate side are formed in a substantially arc shape with a predetermined width and centering on the support shaft over a predetermined angle range. The imaging device described.   The angle range of the opening on the fixed plate side and the opening on the rotating plate side is not less than half and not more than the maximum angle of the maximum angle at which the upper grip is rotated with respect to the main body. The imaging device according to claim 6.   6. The harness is a flexible printed wiring board, and the flexible printed wiring board is bent between the opening on the fixed plate side and the opening on the rotating plate side that overlap each other. The imaging device described.   The flexible printed wiring board has a curved portion that is curved with a predetermined curvature in a plane, and the curved portion is folded between the opening on the fixed plate side and the opening on the rotating plate side that overlap each other. The imaging apparatus according to claim 8, wherein   10. The imaging apparatus according to claim 9, wherein a radius of curvature of the curved portion is substantially the same as a radius of curvature of the opening on the fixed plate side and the opening on the rotating plate side around the support shaft. .   9. The imaging apparatus according to claim 8, wherein the harness is a double-sided flexible printed wiring board.

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