JP4424041B2 - Shaft rotating apparatus and imaging apparatus using the same - Google Patents

Description

  The present invention relates to a shaft rotation device effective for use in an imaging device such as a video camera or a digital still camera.

  In recent years, an imaging apparatus typified by a video camera has a large liquid crystal monitor for viewing a video being shot or a video reproduced from a recording medium. Furthermore, in order to improve the visibility of the liquid crystal monitor, the liquid crystal monitor is often configured to be retractable with respect to the main body by a shaft rotating device. Hereinafter, an imaging device including a conventional shaft rotating device will be described.

  FIG. 8 is a perspective view showing a configuration of a recording / reproducing apparatus using a conventional shaft rotating device disclosed in Patent Document 1. 101 is a tape cassette that can be loaded therein and a video / audio signal is sent to the tape cassette. A recording / reproducing unit having a mechanism and a circuit capable of recording / reproducing, 102 is a monitor screen unit provided on the recording / reproducing unit 101 so as to be rotatable and has a monitor screen on one side thereof, and 103 is a recording / reproducing unit for the monitor screen unit 102 Reference numeral 101 denotes a shaft rotating unit that is rotatably and rotatably held with respect to 101.

  FIG. 9 is an exploded perspective view showing the internal configuration of the shaft rotating portion 103 in FIG. In FIG. 9, 104 is a side plate fixed to the holding member 108 with screws, 105 is an open / close regulating plate having an oval hole, and 106 is a rotary shaft that is a first shaft provided on the monitor screen unit 102. The holding member 108 and the opening / closing load member 110 are inserted, and the tip cross-sectional shape is substantially D-shaped. Reference numeral 107 denotes a fixed plate fixed to the monitor screen unit 102, and the rotary shaft 106 is caulked and fixed. Reference numeral 108 denotes a holding member that rotatably holds the rotating shaft 106 and the opening / closing shaft 109. Reference numeral 109 denotes an opening / closing shaft that is a second shaft body fixed to the recording / reproducing unit 101 with screws, and the holding member 108 and the opening / closing load member 110. The curling portion is inserted, and the torque during rotation of the holding member 108 is generated by press-fitting into the curling portion. Further, the open / close shaft 109 has an oval cross-sectional shape. The open / close regulating plate 105 is press-fitted into the open / close shaft 109, and the side plate 104 is press-fitted from the outside and fixed to the holding member 108 with screws. 110 is an opening / closing load member screwed to the holding member 108, 111 is a substantially wave washer-like rotational load member through which the tip of the rotating shaft 106 is inserted, and 112 is a rotational load in the outer shape recess of the rotating shaft 106 through which the tip is inserted. A rotation restricting plate 113 with which the claw portion of the member 111 is engaged, and an E ring that engages with a groove portion provided at the tip of the rotating shaft 106. Here, the rotation load member 111 is pressure-bonded to the opening / closing load member 110 to generate torque when the rotation shaft 106 rotates.

  FIG. 10 is an exploded perspective view showing the configuration of the main components of FIG. In FIG. 10, 106 a and 106 b are first and second rotating shaft concave portions provided to face the central portion of the rotating shaft 106, and 109 a is an opening and closing shaft concave portion provided in the central portion of the opening and closing shaft 9.

  11 and 12 are cross-sectional views taken along the axis of the rotary shaft 106 in a state where the rotary shaft 106 and the opening / closing shaft 109 shown in FIG. 6 shows various states of the monitor screen unit 102 with respect to the playback unit 101. First, FIG. 11A shows a state in which the monitor screen portion 102 is parallel to the recording / reproducing portion 101, and the rotation shaft recess 106a of the rotation shaft 106 is engaged with the outer peripheral arc portion of the opening / closing shaft 109. The screen unit 102 cannot be rotated in the arrow b direction. Here, FIG. 11A shows the case where the monitor screen of the monitor screen unit 102 is directed to the recording / reproducing unit 101 side. Similarly, the monitor screen unit 102 is engaged with an arc portion on the outer periphery of the opening / closing shaft 109 so that the monitor screen unit 102 does not rotate in the arrow b direction.

  FIG. 11B shows a state in which the monitor screen unit 102 is rotated about 90 degrees in the direction of arrow a about the opening / closing axis 109 with respect to FIG. A rotation shaft recess 106a on the outer periphery of the rotation shaft 106 is opposed to 109a, and the monitor screen unit 102 is rotatable in the direction of arrow b.

  FIG. 12A shows a state in which the monitor screen unit 102 is rotated about 90 degrees in the direction of the arrow b about the rotation shaft 106 with respect to FIG. 109a is engaged with an arc portion on the outer periphery of the rotation shaft 106, and the monitor screen portion 102 is in a state in which it cannot rotate in the direction of the arrow a around the opening / closing shaft 109. Is prevented from coming into contact with the recording / reproducing unit 101. Here, when returning from the state of FIG. 12A to the state of FIG. 11A, the monitor screen unit 102 is once rotated back about the rotation axis 6 to the position shown in FIG. 11B. Although it is necessary, as shown in FIG. 12B, the monitor screen unit 102 is not returned to the state shown in FIG. When the part 102 is started to rotate, the corners of the circular arc portion on the outer periphery of the rotary shaft 106 and the corners of the rotary shaft concave portion 106a come into contact with the corners of the circular arc portion on the outer periphery of the open / close shaft 109 and the open / close shaft concave portion 109a. When 102 is rotated in the direction of arrow a, the rotation shaft 106 is forcibly rotated in the direction of arrow b, so that the monitor screen unit 102 is rotated in the same manner, and the corner of the monitor screen unit 102 is moved to the recording / playback unit 1. Figure without contact Can be returned to the state of 1 (a).

  In the state of FIG. 11B, the monitor screen unit 102 is rotated about 180 degrees around the rotation shaft 106 and returned to the state of FIG. The monitor screen can be on the side opposite to the recording / playback unit 101 side.

  Further, the arrangement angle, shape, and quantity on the outer periphery of the opening / closing shaft recess 109a formed on the opening / closing shaft 109, as well as the arrangement angle, shape, and quantity on the outer periphery of the rotation shaft recesses 106a and 106b formed on the rotation shaft 106 are set. By combining them arbitrarily, various movements of the monitor screen unit 102 can be realized.

  Next, another conventional technique will be described with reference to FIGS.

  13 to 16 are perspective views showing the external configuration of another imaging apparatus, FIG. 13 is a state in which the display body is stored, FIG. 14 is a state in which the display body is opened approximately 90 degrees, and FIG. 15 is from the state in FIG. Further, FIG. 16 shows a state where the display body is opened, and FIG. 16 shows a state where the display unit is directed toward the subject in the state shown in FIG.

  In the figure, reference numeral 10 denotes a video camera body, which is not limited to a video camera as long as it has at least an imaging means and can photograph a subject, and may be a digital still camera or the like. Reference numeral 1 denotes a main body unit including a first housing having a signal processing circuit for performing various signal processing, a mechanism for guiding a recording medium, an imaging unit for imaging a subject, and the like. The display body, which is a second housing having a display unit 4 that is rotatably fixed, 2a is a hinge unit that fixes the display body 2 to the main body unit 1 and 3 is a main body unit 1. The image pickup unit is provided with a light signal of a subject to form an image inside to form a video signal, and includes a lens, a diaphragm, a solid-state image sensor (CCD), and the like. A display unit 4 is provided on the display body 2 and displays a video being captured by the video camera body 10 or a video reproduced from a recording medium. Generally, a liquid crystal display of about 2 to 4 inches is used. Other display devices such as an EL display may be used. Reference numeral 5 denotes an operation unit provided in a display body housing portion of the main body unit 1 for performing various operations (such as photographing operation, recording medium recording / reproducing operation, and video adjustment operation) of the video camera main body 10. It consists of buttons. Most or all of the operation unit 5 is arranged at a position where the display unit 2 is not visible from the outside in a state where the display unit 2 is stored in the main body unit 1 (the state shown in FIG. 13).

  The operation of the conventional imaging apparatus configured as described above will be described below.

  First, it is necessary to displace the display unit 4 in the display body 2 from the state of FIG. For this purpose, the end portion of the display body 2 (generally, the end portion facing the hinge portion 2a) is gripped and rotated in the direction of arrow D about the hinge portion 2a.

  When the display body 2 is rotated to the position shown in FIG. 14, the display body 2 is held at a position opened about 90 degrees by a locking means (not shown) provided inside the hinge portion 2a. In this state, a click feeling is given by a mechanism inside the hinge portion 2a so that the display body 2 does not easily rotate.

  In this state, the power of the main body is turned on by operating a power button (not shown) provided on the video camera main body 10. Then, by setting the video camera body 10 to the shooting mode, the subject video incident on the imaging unit 103 is internally signal-processed and displayed on the display unit 4. The photographer adjusts the angle of view to be recorded while watching the video signal displayed on the display unit 4, and operates a recording button, a zoom button (not shown), and the like to record a desired video on the recording medium. be able to. In this description, power is turned on while the display body 2 is open. However, it is not necessary to relate the operation of opening the display body 2 to the power-on operation. The display body 2 may be opened.

  In addition, in the state shown in FIG. 14, the video camera body 10 is set to the playback mode, and the playback button is operated to set the playback state of the recording medium, so that the recording medium loaded therein (tape cassette, disk, memory card, etc. ) Can be displayed on the display unit 4. The user can view the reproduced video by the video signal displayed on the display unit 4. Note that the play button, fast forward / rewind button, and the like are provided in the display body housing portion in the main body 1 and are specifically shown as the operation unit 5. In general, in the state in which the display body 2 is stored (the state shown in FIG. 13), it is very rare to reproduce and use the recording medium. Therefore, operation buttons and the like used for reproduction are arranged at the same position from the viewpoint of improving space efficiency. .

  Further, the display body 2 can be rotated as indicated by an arrow C. As for the specific internal structure of the hinge portion 2a, for example, as shown in, for example, Japanese Patent Laid-Open No. 10-285444, many have a biaxial structure. By rotating the display body 2 in the direction of the arrow C and setting it to a desired angle, the display unit 4 can be oriented at an angle that is easy for the user to see. In the present embodiment, in the rotation in the direction of arrow C, the rotation in the clockwise direction about the alternate long and short dash line is about 90 degrees, and the rotation in the counterclockwise direction is 180 degrees.

  Next, the storing operation of the display body 2 will be described. From the state shown in FIG. 14, the display body 2 can be shifted to the storage state shown in FIG. 13 by rotating the display body 2 in the direction of arrow G around the hinge portion 2 a.

  In the present embodiment, the display body 2 can be further rotated in the direction of arrow E from the state of FIG. FIG. 15 shows the state after the rotation. The rotation angle of the display body 2 in FIG. 15 is set to, for example, about 120 degrees with respect to the state of FIG. Further, in the state shown in FIG. 15, the display body 2 is locked by a mechanism inside the hinge portion 2a so as not to rotate further in the opening direction. Its configuration will be described later.

  As shown in FIG. 15, the configuration in which the display body 2 is opened by 90 degrees or more has the following advantages.

  First, the first merit is that when the user operates the operation unit 5 while looking at the display unit 4 from the arrow Y direction, the display surface of the display unit 4 has a conventional configuration (configuration in which the display body opens 90 degrees). Compared to the user side, the display on the display unit 4 is easy to see. Therefore, the operation unit 5 can be operated favorably while viewing the display on the display unit 4.

Next, the second merit is when the display unit 4 is used as a video light. 15 is temporarily returned to the state shown in FIG. 2, the display body 2 is rotated in the direction of arrow C, the display unit 4 is directed toward the subject, and the display body 2 is rotated by 90 degrees or more as shown by arrow E. By doing so, the state shown in FIG. 16 is obtained. Alternatively, depending on the structure, the display body 2 can be rotated in the arrow H direction from the state shown in FIG. In the state of FIG. 16, the display unit 4 faces the same direction as the lens of the imaging unit 3, that is, the subject side.
JP-A-10-126655 Japanese Patent Laid-Open No. 10-285444

  However, in the above-described conventional configuration, the shape and arrangement of the imaging unit 3 are optimized so that the display body 2 can be rotated in the arrow H direction from the state where the display body 2 is opened approximately 120 degrees as shown in FIG. There is a need. That is, in order to rotate the display body 2 from the state shown in FIG. 15 to shift to the state of FIG. 16, it is necessary to prevent the display body 2 from contacting the main body unit 1 and the imaging unit 3 with each other. In the configuration shown in FIG. 15, interference between the display body 2 and other components is prevented by reducing the outer diameter of the imaging unit 3 and arranging the display body 2 as close to the front end of the main body 1 as possible. Yes. In such a configuration, not only is the degree of freedom in design low, but also the outer diameter of the imaging unit 3 is limited. In addition, when such a configuration is applied to an imaging apparatus in which the lens aperture associated with the increase in the number of pixels of the imaging element is increased and the display body 2 is rotated 90 degrees or more in the open state, the imaging unit 3 There was a problem of contact and interference.

  In view of the above problems, an object of the present invention is to provide a shaft rotating apparatus that can prevent contact with other components even when the display body is rotated in an opened state of 90 degrees or more.

  In order to achieve the above object, an imaging apparatus of the present invention includes first and second shaft bodies that are orthogonal to each other, and a holding member that rotatably holds the first and second shaft bodies. The first and second shaft bodies each have a concave portion, and the concave portion provided in the first shaft body engages the concave portion provided in the second shaft body or the shaft diameter portion thereof; In addition, at least one axial end portion of the concave portion of the first shaft body has a curved shape.

  Thereby, even if it rotates in the state which opened the display body 90 degree | times or more, contact with other components can be prevented.

  As described above, the present invention has an excellent effect that contact with other components can be prevented even when the display body is rotated in an opened state of 90 degrees or more.

  In addition, there is an effect that such a configuration can be realized easily and at low cost.

  The invention according to claim 1 of the present invention includes first and second shaft bodies that are orthogonal to each other, and a holding member that rotatably holds the first and second shaft bodies. Each of the intersecting portions of the second shaft body has a recess, the recess provided in the first shaft body engages with the recess provided in the second shaft body or the shaft diameter portion thereof, and At least one axial end portion of the concave portion of the first shaft body has a curved shape, thereby preventing contact with other components even when the display body is rotated 90 degrees or more. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is an exploded perspective view showing the configuration of the main part of the rotating device of the present embodiment. In the present embodiment, it is assumed that the display body (monitor screen unit) is opened by about 90 degrees or more, and since this structure has been described in the above-described conventional technology, the description is omitted.

  In FIG. 1, reference numeral 206 denotes a first support in which one end (the right end in FIG. 1) is fixed to the monitor screen 202 as a display body, and the whole is inserted through the holding member 208 and is rotatably held in the direction of arrow b. A shaft 209 is fixed to the video camera main body as the main body at both ends (upper and lower ends in FIG. 1), and the second support shaft is inserted into the holding member 208 and is rotatably held in the direction of arrow a. , 206a and 206c are first and second rotating shaft concave portions provided opposite to the central portion of the first support shaft 206, and the shape thereof is at least one end portion in the longitudinal direction (axial direction) In the embodiment, a curved portion 206b having a curved shape (R shape) is formed at the right end in FIG. The features of the curved portion 206b will be described later. Reference numeral 209a denotes an opening / closing shaft recess provided in the central portion of the second support shaft 209.

  2 to 6 are cross-sectional views along the axis of the first support shaft 206 with the first support shaft 206 and the second support shaft 209 shown in FIG. It is seen from the direction and shows various states of the monitor screen unit 202 (display body 2) with respect to the recording / reproducing unit (main body unit 1).

  About the rotation apparatus of this Embodiment comprised as mentioned above, the operation | movement is demonstrated below also with FIGS. 13-16.

  First, the configuration of an imaging apparatus using the shaft rotating apparatus according to the present embodiment will be described with reference to FIGS.

  13 to 16 are perspective views showing the external configuration of the image pickup apparatus. FIG. 13 shows a state in which the display body is stored, FIG. 14 shows a state in which the display body is opened approximately 90 degrees, and FIG. FIG. 16 shows a state where the body is opened, and FIG. 16 shows a state where the display unit is directed toward the subject in the state shown in FIG.

  In the figure, reference numeral 10 denotes a video camera body, which is not limited to a video camera as long as it has at least an imaging means and can photograph a subject, and may be a digital still camera or the like. Reference numeral 1 denotes a main body unit including a first housing having a signal processing circuit for performing various signal processing, a mechanism for guiding a recording medium, an imaging unit for imaging a subject, and the like. The display body, which is a second housing having a display unit 4 that is rotatably fixed, 2a is a hinge unit that fixes the display body 2 to the main body unit 1 and 3 is a main body unit 1. The image pickup unit is provided with a light signal of a subject to form an image inside to form a video signal, and includes a lens, a diaphragm, a solid-state image sensor (CCD), and the like. A display unit 4 is provided on the display body 2 and displays a video being captured by the video camera body 10 or a video reproduced from a recording medium. Generally, a liquid crystal display of about 2 to 4 inches is used. Other display devices such as an EL display may be used. Reference numeral 5 denotes an operation unit provided in a display body housing portion of the main body unit 1 for performing various operations (such as photographing operation, recording medium recording / reproducing operation, and video adjustment operation) of the video camera main body 10. It consists of buttons. Most or all of the operation unit 5 is arranged at a position where the display unit 2 is not visible from the outside in a state where the display unit 2 is stored in the main body unit 1 (the state shown in FIG. 13).

  The operation of the imaging apparatus configured as described above will be described below.

  First, it is necessary to displace the display unit 4 in the display body 2 from the state of FIG. For this purpose, the end portion of the display body 2 (generally, the end portion facing the hinge portion 2a) is gripped and rotated in the direction of arrow D about the hinge portion 2a.

  When the display body 2 is rotated to the position shown in FIG. 14, the display body 2 is held at a position opened about 90 degrees by a locking means (not shown) provided inside the hinge portion 2a. In this state, a click feeling is given by a mechanism inside the hinge portion 2a so that the display body 2 does not easily rotate.

  In this state, the power of the main body is turned on by operating a power button (not shown) provided on the video camera main body 10. Then, by setting the video camera body 10 to the shooting mode, the subject video incident on the imaging unit 103 is internally signal-processed and displayed on the display unit 4. The photographer adjusts the angle of view to be recorded while watching the video signal displayed on the display unit 4, and operates a recording button, a zoom button (not shown), and the like to record a desired video on the recording medium. be able to. In this description, power is turned on while the display body 2 is open. However, it is not necessary to relate the operation of opening the display body 2 to the power-on operation. The display body 2 may be opened.

  In addition, in the state shown in FIG. 14, the video camera body 10 is set to the playback mode, and the playback button is operated to set the playback state of the recording medium, so that the recording medium loaded therein (tape cassette, disk, memory card, etc. ) Can be displayed on the display unit 4. The user can view the reproduced video by the video signal displayed on the display unit 4. Note that the play button, fast forward / rewind button, and the like are provided in the display body housing portion in the main body 1 and are specifically shown as the operation unit 5. In general, in the state in which the display body 2 is stored (the state shown in FIG. 13), it is very rare to reproduce and use the recording medium. Therefore, operation buttons and the like used for reproduction are arranged at the same position from the viewpoint of improving space efficiency. .

  Further, the display body 2 can be rotated as indicated by an arrow C. As for the specific internal structure of the hinge portion 2a, for example, as shown in, for example, Japanese Patent Laid-Open No. 10-285444, many have a biaxial structure. By rotating the display body 2 in the direction of the arrow C and setting it to a desired angle, the display unit 4 can be oriented at an angle that is easy for the user to see. In the present embodiment, in the rotation in the direction of arrow C, the rotation in the clockwise direction about the alternate long and short dash line is about 90 degrees, and the rotation in the counterclockwise direction is 180 degrees.

  Next, the storing operation of the display body 2 will be described. From the state shown in FIG. 14, the display body 2 can be shifted to the storage state shown in FIG. 13 by rotating the display body 2 in the direction of arrow G around the hinge portion 2 a.

  In the present embodiment, the display body 2 can be further rotated in the direction of arrow E from the state of FIG. FIG. 15 shows the state after the rotation. The rotation angle of the display body 2 in FIG. 15 is set to, for example, about 120 degrees with respect to the state of FIG. Further, in the state shown in FIG. 15, the display body 2 is locked by a mechanism inside the hinge portion 2a so as not to rotate further in the opening direction.

  As shown in FIG. 15, the configuration in which the display body 2 is opened by 90 degrees or more has the following advantages.

  First, the first merit is that when the user operates the operation unit 5 while looking at the display unit 4 from the arrow Y direction, the display surface of the display unit 4 has a conventional configuration (configuration in which the display body opens 90 degrees). Compared to the user side, the display on the display unit 4 is easy to see. Therefore, the operation unit 5 can be operated favorably while viewing the display on the display unit 4.

  Next, the second merit is that when the display unit 4 is directed toward the subject and used as a so-called “selfie” in which the photographer himself is the subject, the display unit 4 is displayed in white and the video is directed toward the subject. When used as a light. 15 is temporarily returned to the state shown in FIG. 14, the display body 2 is rotated in the direction of arrow C, the display unit 4 is directed toward the subject, and the display body 2 is rotated 90 degrees or more as shown by arrow E. By doing so, the state shown in FIG. 16 is obtained. In the state of FIG. 16, the display unit 4 faces the same direction as the lens of the imaging unit 3, that is, the subject side.

  In addition, when the display body 2 is rotated in the arrow H direction from the state shown in FIG. 15, the outer diameter of the imaging unit 3 is small in the related art, but the rotation is configured. Since the purpose is to prevent interference between the display body 2 and the imaging section when using a large imaging section, the display body 2 maintains the rotation angle (approximately 120 degrees) shown in FIG. The display body 2 cannot be rotated in the arrow H direction. In the present embodiment, the force in the direction of arrow F acts on the display body 2 due to the internal structure of the hinge portion, and as a result, the state shifts to the state shown in FIG. Details of this operation will be described later.

  Next, the operation of the support shaft in the operations shown in FIGS. 13 to 16 will be described with reference to FIGS.

  First, FIG. 2 shows a state (rotation angle 0 degree) in which the display body 2 (monitor screen unit 202) is parallel to the main body 1 (recording / reproducing unit), which corresponds to the state shown in FIG. In this state, the rotation shaft concave portion 206a of the first support shaft 206 is engaged with the outer peripheral circular arc portion 209b of the second support shaft 209, and the display body 2 (the monitor screen section 202) is moved to the arrow b shown in FIG. The direction and the direction of arrow b in FIG. 2B cannot be rotated. Here, FIG. 2 shows the case where the monitor screen of the display body 2 (monitor screen unit 202) is directed to the recording / reproducing unit side. Similarly, the display body 2 (monitor screen unit 202) is prevented from rotating in the direction of arrow b by engaging with an arc portion on the outer periphery of the second support shaft 209. When the display body 2 (monitor screen unit 202) is rotated from this state, the first support shaft 206 is rotated in the direction of arrow I about the second support shaft 209.

  FIG. 3 shows a state in which the display body 2 (monitor screen section 202) is rotated by approximately 60 degrees with respect to the main body section 1 (recording / reproducing section). Even in this state, a part of the outer peripheral circular arc portion 209b of the second support shaft 209 is engaged with the rotation shaft recess 206a of the first support shaft 206, and the first support shaft 206 is in the direction of the arrow b. It cannot be rotated. When the display body 2 (monitor screen unit 202) is further rotated from this state, the first support shaft 206 is rotated in the direction of arrow J about the second support shaft 209.

  FIG. 4 shows a state in which the display body 2 (monitor screen section 202) is rotated by approximately 90 degrees with respect to the main body section 1 (recording / reproducing section) (corresponding to FIGS. 8 and 14). In this state, the outer circumferential arc portion 209b of the second support shaft 209 is separated from the rotation shaft recess 206a of the first support shaft 206, and the opening / closing shaft recess 209a faces the rotation shaft recess 206a. It has become. In this state, there is nothing that restricts the rotation of the first support shaft 206, and the first support shaft 206 and the display body 2 (monitor screen unit 202) are rotatable in the direction of arrow b. When the display body 2 (monitor screen unit 202) is further rotated from this state, the first support shaft 206 is rotated in the direction of the arrow K about the second support shaft 209.

  FIG. 5 shows a state in which the display body 2 (monitor screen unit 202) is rotated approximately 110 degrees with respect to the main body unit 1 (recording / reproducing unit). In this state, a part of the outer peripheral arc portion 209 b of the second support shaft 209 is in a state of being engaged with the curved portion 206 b of the first support shaft 206. In this state, when the display body 2 (monitor screen unit 202) is to be rotated in the direction of arrow b, the first support shaft 206 is guided by the curved portion 206b formed on the first support shaft 206. Rotate in the direction and finally shift to the state shown in FIG. When the display body 2 (monitor screen unit 202) is further rotated from the state shown in FIG. 5, the first support shaft 206 is rotated in the direction of the arrow L about the second support shaft 209.

  FIG. 6 shows a state in which the display body 2 (monitor screen unit 202) is rotated about 120 degrees with respect to the main body unit 1 (recording / reproducing unit) (corresponding to the state shown in FIG. 15). In this state, a part of the outer peripheral arc portion 209 b of the second support shaft 209 is in a state of being engaged with the curved portion 206 b of the first support shaft 206. If the display body 2 (monitor screen portion 202) is to be rotated in the direction of the arrow b in this state, the outer peripheral arc portion 209b and the curved portion 206b formed on the first support shaft 206 slide, and the curved shape thereof is obtained. Is applied to the first support shaft 206 in the direction indicated by the arrow N. Then, the first support shaft 206 starts to rotate in the direction of arrow N, and finally shifts to the state shown in FIG. 4 (approximately 90 degrees position) through the state of FIG.

  That is, when the display body 2 is rotated in the arrow H direction with the display body 2 opened at about 120 degrees as shown in FIG. 15, the curve formed on the first support shaft 206 as shown in FIG. Due to the portion 206b and the outer circumferential arc portion 209b, a force in the direction of arrow N acts on the first support shaft 206, and the display body 2 is shifted to a state where it is opened approximately 90 degrees. By doing so, it is possible to prevent interference with other components that occurs when the display body 2 is rotated in a state of being opened approximately 120 degrees. Although the display body 2 is in the rotational direction when the display body 2 is shifted to a state where the display body 2 is opened approximately 90 degrees, the display body 2 may be in a horizontal state, in a vertical state, or in other rotations. It may be a corner.

  Further, when the display body 2 is rotated about the first support shaft 206 from the state shown in FIG. In this state, the side 206d of the first support shaft 206 is opposed to the opening / closing shaft recess 209a. Since the side portion 206d has a substantially cylindrical shape, the opening / closing shaft recess 209a and the side portion 206d are in a positional relationship of approaching or abutting as illustrated. Even if it is going to rotate the 1st spindle 206 (display body 2) to the arrow O or P direction from this state, the side part 206d contact | abuts on the opening-and-closing axis | shaft recessed part 209a, and rotation operation is controlled. That is, even if the display body 2 is rotated from the state shown in FIG. 14 to the horizontal state in the direction of arrow C and then the display body 2 is rotated in the direction of arrow E or G, the display body 2 cannot be rotated. ing. Thereby, the contact and interference with the display body 2 and the main-body part 1 can be prevented.

  As described above, according to the present embodiment, by providing the curved portion 206b on the first support shaft 206, the display body 2 can be moved in the state where the display body 2 (monitor screen portion 202) is opened 90 degrees or more. When it is attempted to rotate about the single support shaft 206, the rotation angle of the display body 2 is returned to a state of approximately 90 degrees, so that contact / interference between the display body 2 and other parts can be prevented. it can. Moreover, since such a structure can be realized only by forming a curved portion on the conventional first support shaft, it can be realized at low cost.

  Although the imaging device of the present invention has been described as a video camera, it can be applied to various devices as long as it has means for rotating at least one housing relative to the other housing. For example, a digital still Application examples such as cameras and PDAs are conceivable.

The disassembled perspective view which shows the structure in embodiment of the rotating apparatus of this invention. Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Sectional drawing which shows movement operation | movement with the 1st spindle and the 2nd spindle in the embodiment Perspective view of a conventional imaging device An exploded perspective view of a hinge portion in a conventional imaging device The main part exploded perspective view of the hinge part in the conventional imaging device Cross-sectional view of the main part showing the operation of the hinge part in the conventional imaging device Cross-sectional view of the main part showing the operation of the hinge part in the conventional imaging device The perspective view which shows another example of the conventional imaging device The perspective view which shows another example of the conventional imaging device The perspective view which shows another example of the conventional imaging device The perspective view which shows another example of the conventional imaging device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Display body 206 1st spindle 209 2nd spindle

Claims (1)

First and second shaft bodies that are orthogonal to each other and a holding member that rotatably holds the first and second shaft bodies are provided, and concave portions are respectively formed at intersecting portions of the first and second shaft bodies. And a recess provided in the first shaft body engages with a recess provided in the second shaft body or a shaft diameter portion thereof, and at least one of the recesses of the first shaft body A shaft rotating apparatus characterized in that an axial end portion is curved.

Images