Camera equipment
A single motor-driven power transmission member in the camera device independently controls camera and shutter movements through distinct angle ranges, addressing the complexity and cost issues of separate mechanisms, achieving reduced parts and simplified structure.
Patent Information
- Application Number
- JP2021032272
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-02
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2041-03-02
AI Technical Summary
Existing camera devices with motor-driven shutters require separate motors and mechanisms for camera and shutter movement, leading to increased parts and complexity, as well as cost.
A camera device design where a single motor operates a power transmission member that rotates independently to move both the camera and shutter through distinct angle ranges, using locking pins and grooves to engage and disengage with the camera and shutter, allowing independent movement.
Reduces the number of parts and simplifies the structure by using a single motor to independently control the camera and shutter movements, thereby lowering the overall cost and complexity.
Smart Images
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Abstract
Description
[Technical field]
[0001] The present invention relates to a camera device. [Background technology]
[0002] Patent Document 1 discloses a camera device (surveillance camera device) that changes the orientation of the camera by using the driving force of a motor (actuator). The camera device of Patent Document 1 also includes a mechanism that moves the camera in the direction of its optical axis in conjunction with the action of changing the orientation of the camera. In other words, the camera device of Patent Document 1 is configured to move the camera (the same object) in two directions simultaneously (the direction in which the camera orientation is changed and the optical axis direction). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2010-107772 A Summary of the Invention [Problem to be solved by the invention]
[0004] Incidentally, when using this type of camera device for web conferences, etc., it is conceivable to provide a shutter that covers the camera to prevent unwanted photography with the camera for the purpose of protecting privacy, etc. Such a shutter is preferably provided so as to be movable between a position that covers the camera and a position that does not cover it. For example, it is conceivable to move the shutter manually, but this is inconvenient when the camera device is installed in a place that is out of reach or difficult to reach. Therefore, it is conceivable to move the shutter using the driving force of a motor.
[0005] However, the camera and the shutter need to be moved independently of each other. Therefore, even if one tries to manufacture a camera device with a shutter based on Patent Document 1, it is necessary to prepare a motor and a drive mechanism for moving the camera and a motor and a drive mechanism for moving the shutter separately. As a result, the number of parts of the camera device increases and the structure of the camera device becomes complicated. In addition, since the motor accounts for a large proportion of the cost of the camera device, there is also the problem that the cost of the camera device increases when the number of motors increases.
[0006] The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a camera device that is capable of moving the camera and shutter independently using the driving force of the same motor, while reducing the number of parts and simplifying the structure. [Means for solving the problem]
[0007] A first aspect of the present invention includes a base member, a camera rotatably attached to the base member about a first rotation axis, a shutter member rotatably attached to the base member about a second rotation axis parallel to the first rotation axis between a cover position that covers the camera and an open position that exposes the camera to the outside, a power transmission member rotatably attached to the base member about a third rotation axis parallel to the first rotation axis, and a motor that rotates the power transmission member, wherein the power transmission member rotates the camera in a first rotation angle range of the power transmission member as the power transmission member rotates, and rotates the shutter member in a second rotation angle range of the power transmission member that is different from the first rotation angle range. the power transmission member has a first locking pin and a second locking pin arranged at a position radially away from the third rotating shaft and spaced apart from each other in a circumferential direction of the third rotating shaft, the camera has a first locking groove formed extending in a radial direction of the first rotating shaft, the first locking pin is inserted into the first locking groove when the power transmission member is positioned in the first rotation angle range and comes out of the first locking groove at least when the power transmission member is positioned in the second rotation angle range, and the camera moves in accordance with the rotation of the power transmission member with the first locking pin inserted into the first locking groove. the shutter member is formed in an arc shape centered on the third rotation axis at least when disposed at the open position, and has a second locking groove into which the second locking pin is inserted, the second locking pin is movable in the longitudinal direction of the second locking groove when the power transmission member is positioned at least in the first rotation angle range, and contacts an end of the second locking groove in the longitudinal direction when the power transmission member is positioned in the second rotation angle range, and the shutter member rotates in conjunction with the rotation of the power transmission member as the second locking pin contacts the end of the second locking groove in the longitudinal direction. It is a camera device. Effect of the Invention
[0008] According to the present invention, the number of parts in the camera device can be reduced to simplify the structure, while the camera and the shutter can be independently driven by the driving force of the same motor. [Brief description of the drawings]
[0009] [Figure 1] 1 is a perspective view of a camera device according to an embodiment of the present invention, showing a state in which a shutter member is placed in an open position; [Diagram 2] 2 is a perspective view showing a state in which a shutter member is placed at a cover position in the camera device of FIG. 1. FIG. [Diagram 3] FIG. 3 is an exploded perspective view of the camera device of FIGS. [Figure 4] FIG. 4 shows the positional relationship between the camera, shutter member, and power transmission member in the camera device of FIGS. 1 to 3, with the power transmission member located in a first rotation angle range, the shutter member in an open position, and the camera facing forward. [Diagram 5] FIG. 5 is a perspective view showing a camera of the camera device of FIGS. 1 to 4. [Figure 6] FIG. 5 is a perspective view showing a shutter member of the camera device of FIGS. 1 to 4. [Figure 7] FIG. 5 is a perspective view showing a power transmission member of the camera device of FIGS. 1 to 4. [Figure 8] FIG. 4 shows the positional relationship between the camera, shutter member, and power transmission member in the camera device of FIGS. 1 to 3, with the power transmission member located in a first rotation angle range, the shutter member in an open position, and the camera facing diagonally upward. [Figure 9] FIG. 4 shows the positional relationship between the camera, shutter member, and power transmission member in the camera device of FIGS. 1 to 3, with the power transmission member located in a first rotation angle range, the shutter member in an open position, and the camera facing diagonally downward. [Figure 10] FIG. 4 shows the positional relationship between the camera, shutter member, and power transmission member in the camera device of FIGS. 1 to 3, with the power transmission member located in a second rotation angle range, the shutter member in an open position, and the camera facing diagonally downward. [Figure 11]FIG. 4 shows the positional relationship between the camera, the shutter member and the power transmission member in the camera device of FIGS. 1 to 3, and shows a state in which the power transmission member is located in a second rotation angle range and the shutter member is disposed between the open position and the covered position. [Figure 12] FIG. 4 shows the positional relationship between the camera, the shutter member and the power transmission member in the camera device of FIGS. 1 to 3, with the power transmission member located in a second rotation angle range and the shutter member disposed in a cover position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 4, camera device 1 includes a base member 2, a camera 3, a shutter member 4, a power transmission member 5, and a motor 6. Camera device 1 of the present embodiment further includes a reduction gear mechanism .
[0011] The base member 2 is configured to mount the camera 3, the shutter member 4, the power transmission member 5, the motor 6, and the reduction gear mechanism 7. The base member 2 of this embodiment is configured as a case that houses the camera 3, the power transmission member 5, the motor 6, and the reduction gear mechanism 7. The base member 2 has a base main body 21 and a side wall portion 22. In Fig. 4, the side wall portion 22 is omitted. The camera 3, the power transmission member 5, the motor 6, and the reduction gear mechanism 7 are mainly attached to the base main body 21. The base main body 21 is formed with an opening portion 21A that exposes the camera 3 housed therein to the outside.
[0012] In the following description, the direction in which the opening 21A of the base body 21 faces (X-axis positive direction) may be referred to as the front, and the direction opposite to the front (X-axis negative direction) may be referred to as the rear. Also, the first direction (Y-axis direction) perpendicular to the front-rear direction (X-axis direction) may be referred to as the width direction, and the second direction (Z-axis direction) perpendicular to the front-rear direction may be referred to as the up-down direction. Also, the Z-axis positive direction in the drawings may be referred to as the upward direction, and the Z-axis negative direction may be referred to as the downward direction.
[0013] The side wall portion 22 is attached to one side of the base body 21 in the width direction (the positive Y-axis direction side) and covers the camera 3 attached to the base body 21, part of the shutter member 4 (part of the first side plate portion 43A described later), the power transmission member 5, the motor 6, and the reduction gear mechanism 7.
[0014] 1 to 5 is for capturing images and videos. Camera 3 is attached to base member 2 so as to be rotatable about first rotation axis A1. Camera 3 also has first locking groove 31 formed to extend in the radial direction of first rotation axis A1. Camera 3 of this embodiment will be specifically described below.
[0015] The camera 3 of this embodiment has a tube portion 32 in which a lens (not shown) for photographing is provided. The optical axis OA of the camera 3 coincides with the central axis of the tube portion 32. Note that the optical axis OA may be positioned, for example, offset from the central axis of the tube portion 32. The camera 3 is disposed at a position of the base member 2 where the opening 21A is formed. The camera 3 is attached to the base member 2 rotatably about a first rotation axis A1 extending in a direction perpendicular to the optical axis OA at a first end of the longitudinal direction of the tube portion 32. In this embodiment, the first rotation axis A1 extends in the width direction (Y-axis direction). As a result, when the camera 3 rotates with respect to the base member 2, the direction in which the optical axis OA of the camera 3 faces changes up and down (see, for example, FIGS. 8 and 9). In this embodiment, as shown in FIGS. 1 and 5, a shaft body 33 forming the first rotation axis A1 is provided in the camera 3, and a hole 34 into which the shaft body 33 is inserted is formed in the base member 2, but the present invention is not limited thereto.
[0016] As shown in Figs. 3 and 4, the camera 3 is disposed such that the tube portion 32 extends from the opening 21A of the base member 2 toward the inside (rear) of the base member 2. As shown in Figs. 3 to 5, the first locking groove 31 of the camera 3 is located at a second end in the longitudinal direction of the tube portion 32 that is located more inward (rear) than the opening 21A of the base member 2. The first locking groove 31 is located on one side in the width direction of the tube portion 32 (the positive Y-axis direction side). The first locking groove 31 extends linearly in the longitudinal direction of the tube portion 32 and opens to the second end side of the tube portion 32 in the longitudinal direction of the tube portion 32.
[0017] The shutter member 4 shown in Figs. 1 to 4 and 6 is a member for covering the camera 3, and is attached to the base member 2 so as to be rotatable about a second rotation axis A2 parallel to the first rotation axis A1. The shutter member 4 rotates about the second rotation axis A2, and is movable between a cover position P41 for covering the camera 3 as shown in Fig. 2, and an open position P42 for exposing the camera 3 to the outside as shown in Figs. 1 and 4. As shown in Figs. 3 to 4, the shutter member 4 has a second locking groove 41 formed in an arc shape when viewed from the direction in which the second rotation axis A2 extends (width direction). The shutter member 4 of this embodiment will be specifically described below.
[0018] As shown in FIGS. 1 to 4 and 6, the shutter member 4 of this embodiment has a shutter main body 42 and a pair of side plate portions 43. The shutter body 42 is a portion for covering the camera 3. The shutter body 42 is located radially away from the second rotation axis A2, and is formed in a plate shape curved so as to form an arc centered on the second rotation axis A2 when viewed from the width direction as shown in Fig. 4. The second rotation axis A2 is located rearward (in the negative X-axis direction) away from the first rotation axis A1. 2 and 12, when the shutter member 4 is arranged in the cover position P41, the shutter body 42 is located in front of the opening 21A of the base member 2. As a result, the shutter body 42 covers the camera 3. On the other hand, when the shutter member 4 is arranged in the open position P42 as shown in FIGS. 1 and 4, the shutter body 42 is located below the opening 21A of the base member 2. As a result, the shutter body 42 does not cover the camera 3. As shown in Figures 4 and 12, when the shutter body 42 is viewed from one side in the width direction (the positive Y-axis direction), the cover position P41 of the shutter body 42 is located in the clockwise direction (hereinafter referred to as the first rotation direction RD1) of the shutter body 42 relative to the open position P42.
[0019] 1 to 3 and 6, the pair of side plate portions 43 are formed in a plate shape extending in the radial direction of the second rotation axis A2 so as to move from both ends in the width direction (Y-axis direction) of the shutter main body 42 toward the second rotation axis A2. The plate thickness direction of each side plate portion 43 faces the width direction. The pair of side plate portions 43 are positioned with a gap between them in the width direction. The pair of side plate portions 43 are positioned on both sides of the camera 3 in the width direction when the shutter member 4 is attached to the base member 2. 3 and 6, a hole 45 into which a shaft 44 forming the second rotation axis A2 is inserted is formed in the pair of side plate portions 43. The shaft 44 provided in the side wall portion 22 of the base member 2 is inserted into the hole 45 of the first side plate portion 43A located on one side in the width direction (the Y-axis positive direction side) of the pair of side plate portions 43.
[0020] 3 to 5, the second locking groove 41 of the shutter member 4 is formed in the first side plate portion 43A. The second locking groove 41 is formed in an arc shape centered on a third rotation axis A3 of the power transmission member 5 described later when the shutter member 4 is disposed in the open position P42. When viewed from one side in the width direction (the Y-axis positive direction side) as shown in FIG. 4, a recess 47 extending radially inward of the arc-shaped second locking groove 41 is formed in a first end portion 411 (a longitudinal end portion of the second locking groove 41) located on the first rotation direction RD1 side of the second locking groove 41.
[0021] The power transmission member 5 shown in Figs. 3 and 4 is attached to the base member 2 so as to be rotatable about a third rotation axis A3 parallel to the first rotation axis A1. In this embodiment, the third rotation axis A3 of the power transmission member 5 is positioned offset not only with respect to the first rotation axis A1 but also with respect to the second rotation axis A2. The power transmission member 5 rotates the camera 3 in a state in which it is positioned in a first rotation angle range RA1 as shown in Figs. 4, 8, and 9. In addition, the power transmission member 5 rotates the shutter member 4 in a state in which it is positioned in a second rotation angle range RA2 different from the first rotation angle range RA1 as shown in Figs. 10 to 12. The power transmission member 5 of this embodiment will be specifically described below.
[0022] 3 and 7, the power transmission member 5 of this embodiment is a gear formed in a circular plate shape centered on the third rotation axis A3. A hole 55 into which a shaft body 54 constituting the third rotation axis A3 is inserted is formed at the center of the power transmission member 5. In this embodiment, the shaft body 54 constituting the third rotation axis A3 is provided in the base body 21. The power transmission member 5 is disposed between the camera 3 and the first side plate portion 43A of the shutter member 4 in the width direction with its plate thickness direction facing the width direction. As a result, the power transmission member 5 is located on one side in the width direction (the Y-axis positive direction side) with respect to the camera 3. In this state, the third rotation axis A3 of the power transmission member 5 is located between the first rotation axis A1 and the second rotation axis A2 in the front-rear direction. Also, the third rotation axis A3 is located closer to the second rotation axis A2 than the first rotation axis A1 in the front-rear direction.
[0023] 3, 4 and 7, the power transmission member 5 has a first locking pin 51, a second locking pin 52, and a support pin 53. The first locking pin 51, the second locking pin 52, and the support pin 53 are all located radially away from the third rotating shaft A3. The first locking pin 51, the second locking pin 52, and the support pin 53 are also disposed at intervals from one another in the circumferential direction of the third rotating shaft A3. The first locking pin 51 and the support pin 53 are provided on a first opposing surface 5a of the power transmission member 5 that faces the camera 3 in the width direction (Y-axis direction). On the other hand, the second locking pin 52 is provided on a second opposing surface 5b of the power transmission member 5 that faces the first side plate portion 43A of the shutter member 4 in the width direction (Y-axis direction).
[0024] As shown in FIGS. 4, 8, and 9, the first locking pin 51 is inserted into the first locking groove 31 of the camera 3 when the power transmission member 5 is located in the first rotation angle range RA1. In this state, the power transmission member 5 engages with the camera 3, and the camera 3 rotates about the first rotation axis A1 as the power transmission member 5 rotates about the third rotation axis A3. On the other hand, as shown in FIGS. 10 to 12, when the power transmission member 5 is positioned outside the first rotation angle range RA1, the first locking pin 51 of the power transmission member 5 comes out of the opening end 31A of the first locking groove 31 located on the second end side of the camera 3, and the engagement between the power transmission member 5 and the camera 3 is released. In this state, even if the power transmission member 5 rotates, the camera 3 does not rotate. That is, as shown in Figures 8 and 9, the first rotation angle range RA1 of the power transmission member 5 corresponds to the rotation angle range of the first locking pin 51 in which the first locking pin 51 is inserted into the first locking groove 31 of the camera 3 (i.e., the power transmission member 5 is engaged with the camera 3).
[0025] Hereinafter, the mechanism by which the rotation of the power transmission member 5 and the rotation of the camera 3 are linked (tilt mechanism of the camera 3) will be further described. In this embodiment, the first rotation axis A1 and the third rotation axis A3 are positioned side by side in the front-rear direction when viewed from the width direction as shown in Figures 4, 8 and 9. The first locking groove 31 of the camera 3 is positioned between the first rotation axis A1 and the third rotation axis A3 in the front-rear direction and extends in the radial direction of the first rotation axis A1.
[0026] As shown in FIG. 4, when the first locking pin 51 inserted into the first locking groove 31 of the camera 3 is positioned between the first rotation axis A1 and the third rotation axis A3, the optical axis OA of the camera 3 faces forward (positive direction of the X-axis). 4, as shown in Fig. 8, when the power transmission member 5 rotates in the counterclockwise direction (hereinafter referred to as the second rotation direction RD2) about the third rotation axis A3, the camera 3 rotates in the first rotation direction RD1 about the first rotation axis A1. As a result, the optical axis OA of the camera 3 faces obliquely upward.
[0027] On the other hand, when the power transmission member 5 rotates in the first rotation direction RD1 around the third rotation axis A3 from the state shown in Fig. 4 as shown in Fig. 9, the camera 3 rotates in the second rotation direction RD2 around the first rotation axis A1. As a result, the optical axis OA of the camera 3 faces obliquely downward. When the power transmission member 5 is further rotated in the first rotation direction RD1 from the state shown in Figure 9, as shown in Figures 10 and 11, the first locking pin 51 of the power transmission member 5 comes out of the opening end 31A of the first locking groove 31 located on the second end side of the camera 3, and the engagement between the power transmission member 5 and the camera 3 is released.
[0028] As shown in FIGS. 4, and 8 to 12, the second locking pin 52 is inserted into the second locking groove 41 formed in the first side plate portion 43A of the shutter member 4. As shown in FIGS. 4, 8, and 9, when the power transmission member 5 is located in the first rotation angle range RA1, the shutter member 4 is located at the open position P42, and the second locking groove 41 of the shutter member 4 is formed in an arc shape centered on the third rotation axis A3. Therefore, when the power transmission member 5 is located in the first rotation angle range RA1 (i.e., when it is located outside the second rotation angle range RA2 described later), the second locking pin 52 can move in the longitudinal direction of the second locking groove 41 with the rotation of the power transmission member 5. In other words, when the power transmission member 5 is located in the first rotation angle range RA1, the engagement between the power transmission member 5 and the shutter member 4 is released, and the shutter member 4 does not rotate even if the power transmission member 5 rotates. FIGS. 8 and 9 show the rotation angle range of the second locking pin 52 corresponding to the first rotation angle range RA1 (the rotation angle range of the first locking pin 51) of the power transmission member 5. The rotation angle range of the second locking pin 52 corresponding to the first rotation angle range RA1 is included in the range in which the second locking pin 52 can move in the longitudinal direction of the second locking groove 41.
[0029] 10 to 12, when the power transmission member 5 is located in a second rotation angle range RA2 different from the first rotation angle range RA1, the second locking pin 52 of the power transmission member 5 contacts the first end 411 (end) in the longitudinal direction of the second locking groove 41 of the shutter member 4. In this state, the power transmission member 5 engages with the shutter member 4, and the shutter member 4 rotates about the second rotation axis A2 in accordance with the rotation of the power transmission member 5 about the third rotation axis A3. Also, in this state, the first locking pin 51 comes out of the first locking groove 31 of the camera 3.
[0030] The second rotation angle range RA2 of the power transmission member 5 corresponds to the rotation angle range of the second locking pin 52 in which the second locking pin 52 is in contact with the first end 411 of the second locking groove 41 of the shutter member 4. In addition, the second rotation angle range RA2 of the power transmission member 5 corresponds to the rotation angle range of the shutter member 4 from the open position P42 of the shutter member 4 to the cover position P41.
[0031] 10, the first rotation angle range RA1 and the second rotation angle range RA2 of the power transmission member 5 are positioned adjacent to each other in the circumferential direction of the power transmission member 5 centered on the third rotation axis A3. Specifically, the first rotation angle range RA1 and the second rotation angle range RA2 are aligned in order in the first rotation direction RD1. The first rotation angle range RA1 and the second rotation angle range RA2 may be aligned without an interval, for example, but are aligned with an interval in this embodiment.
[0032] 9 and 10 , when the power transmission member 5 is rotated in the first rotational direction RD1 from the first rotational angle range RA1 toward the second rotational angle range RA2, the first locking pin 51 comes out of the first locking groove 31, and the power transmission member 5 further rotates in the first rotational direction RD1, and then the second locking pin 52 comes into contact with the first end 411 of the second locking groove 41. Conversely, when the power transmission member 5 is rotated in the second rotational direction RD2 from the second rotational angle range RA2 toward the first rotational angle range RA1, the second locking pin 52 leaves the first end 411 of the second locking groove 41, and then the power transmission member 5 further rotates in the second rotational direction RD2, and then the first locking pin 51 is inserted into the first locking groove 31.
[0033] The mechanism by which the rotation of the power transmission member 5 and the rotation of the shutter member 4 are linked will be further described below. 10, when the power transmission member 5 rotates in the first rotation direction RD1 in the second rotation angle range RA2 with the shutter member 4 disposed at the open position P42, the second locking pin 52 in contact with the first end portion 411 of the second locking groove 41 rotates the shutter member 4 so as to push it in the first rotation direction RD1. As a result, the shutter member 4 moves from the open position P42 toward the cover position P41 as shown in FIGS.
[0034] Here, as described above, the second locking groove 41 has an arc shape centered on the third rotation axis A3 when the shutter member 4 is disposed at the open position P42. In addition, the second rotation axis A2 of the shutter member 4 and the third rotation axis A3 of the power transmission member 5 are misaligned with each other. Therefore, as the shutter member 4 rotates from the open position P42 toward the cover position P41 in conjunction with the rotation of the power transmission member 5 in the first rotation direction RD1, the second locking pin 52 in contact with the first end portion 411 of the second locking groove 41 moves radially inward relative to the second locking groove 41 and is inserted into the recess 47 formed in the first end portion 411 of the second locking groove 41.
[0035] On the other hand, as shown in Fig. 12, when the power transmission member 5 rotates in the second rotation direction RD2 in the second rotation angle range RA2 with the shutter member 4 disposed at the cover position P41, the second locking pin 52 inserted into the recess 47 of the first end portion 411 of the second locking groove 41 rotates the shutter member 4 so as to push it in the second rotation direction RD2. As a result, the shutter member 4 moves from the cover position P41 toward the open position P42 as shown in Figs.
[0036] 10, when the shutter member 4 reaches the open position P42, the second locking pin 52 comes out of the recess 47 of the first end 411 of the second locking groove 41. As a result, even if the power transmission member 5 is further rotated in the second rotation direction RD2, the second locking pin 52 does not push the shutter member 4 in the second rotation direction RD2. In other words, the shutter member 4 does not rotate further in the second rotation direction RD2 from the open position P42.
[0037] 10 to 12, the support pin 53 supports the camera 3 so as to suppress rotation of the camera 3 about the first rotation axis A1 when the power transmission member 5 is located in the second rotation angle range RA2. Moreover, the support pin 53 is positioned away from the camera 3 so as not to interfere with the rotation of the camera 3 when the power transmission member 5 is located in the first rotation angle range RA1, as shown in FIGS.
[0038] A specific embodiment in which the camera 3 is supported by the support pin 53 will be described below. As shown in FIGS. 10 to 12, when the power transmission member 5 is located in the second rotation angle range RA2 and rotates in the first rotation direction RD1 to move the shutter member 4 from the open position P42 to the cover position P41, the support pin 53 located below the camera 3 moves upward so as to approach the tube portion 32 of the camera 3. As a result, the support pin 53 supports from below a portion of the tube portion 32 of the camera 3 located inside (rearward) of the base member 2 from the first rotation axis A1. In this state, the optical axis OA of the camera 3 is maintained in a state facing obliquely downward by the support pin 53. That is, the orientation of the camera 3 can be maintained within a predetermined range with the first locking pin 51 of the power transmission member 5 coming out of the first locking groove 31 of the camera 3.
[0039] The motor 6 rotates and drives the above-mentioned power transmission member 5. The motor 6 may, for example, directly drive the third rotation shaft A3 of the power transmission member 5. In this embodiment, the motor 6 rotates and drives the power transmission member 5 via a reduction gear mechanism 7. The reduction gear mechanism 7 transmits the driving force of the motor 6 to the power transmission member 5 so that the rotation speed of the power transmission member 5 is smaller than the rotation speed of the motor 6.
[0040] As described above, in the camera device 1 of this embodiment, when the power transmission member 5 rotates in the first rotation angle range RA1, the camera 3 rotates in conjunction with the rotation of the power transmission member 5, and the shutter member 4 does not rotate. On the other hand, when the power transmission member 5 rotates in the second rotation angle range RA2, the shutter member 4 rotates in conjunction with the rotation of the power transmission member 5, and the camera 3 does not rotate. For this reason, when the power transmission member 5 rotates, the camera 3 and the shutter member 4 do not move at the same time. That is, the camera 3 and the shutter member 4 can be moved independently by the same motor 6 and power transmission member 5. Therefore, the camera 3 and the shutter member 4 can be moved independently while keeping the number of parts of the camera device 1 small and simplifying the structure of the camera device 1. In addition, because the camera 3 and the shutter member 4 can be moved independently using the same motor 6, the number of motors 6 can be reduced compared to the conventional art, and the structure of the camera device 1 can be simplified, thereby reducing the cost of the camera device 1.
[0041] In addition, in the camera device 1 of this embodiment, as shown in Figs. 10 to 12, the power transmission member 5 rotates in the second rotation direction RD2 in the second rotation angle range RA2 so as to approach the first rotation angle range RA1, and the shutter member 4 moves from the cover position P41 to the open position P42. Therefore, when the power transmission member 5 rotates in the second rotation direction RD2 and moves from the second rotation angle range RA2 to the first rotation angle range RA1, the shutter member 4 is disposed at the open position P42. As a result, when the power transmission member 5 rotates in the first rotation angle range RA1, the camera 3 can be rotated with the rotation of the power transmission member 5 in a state where the shutter member 4 is disposed at the open position P42 (a state where the shutter member 4 does not cover the camera 3), to change the orientation of the camera 3. That is, the direction (area) photographed by the camera 3 can be changed.
[0042] In the camera device 1 of this embodiment, the power transmission member 5 engages with the camera 3 when the power transmission member 5 is in the first rotation angle range RA1, so that the camera 3 rotates with the rotation of the power transmission member 5. On the other hand, when the power transmission member 5 is positioned outside the first rotation angle range RA1, the engagement between the camera 3 and the power transmission member 5 is released, so that the camera 3 does not rotate with the rotation of the power transmission member 5. On the other hand, the power transmission member 5 engages with the shutter member 4 in the second rotation angle range RA2, so that the shutter member 4 rotates with the rotation of the power transmission member 5. On the other hand, when the power transmission member 5 is positioned outside the second rotation angle range RA2, the engagement between the shutter member 4 and the power transmission member 5 is released, so that the shutter member 4 does not rotate with the rotation of the power transmission member 5. Furthermore, in the camera device 1 of this embodiment, engagement between the power transmission member 5 and the camera 3 is achieved by inserting the first locking pin 51 of the power transmission member 5 into the first locking groove 31 of the camera 3, and engagement between the power transmission member and the shutter member 4 is achieved by the second locking pin 52 of the power transmission member 5 contacting the first end 411 of the second locking groove 41 of the shutter member 4. With such a specific structure, it is possible to reliably move the camera 3 and the shutter member 4 separately, rather than simultaneously, using the same motor 6.
[0043] Furthermore, in the camera device 1 of this embodiment, the power transmission member 5 has a support pin 53 that supports the camera 3 so as to suppress rotation of the camera 3 around the first rotation axis A1 when the power transmission member 5 is located in the second rotation angle range RA2. Therefore, even if the first locking pin 51 of the power transmission member 5 is removed from the first locking groove 31 of the camera 3 by the power transmission member 5 rotating and moving from the first rotation angle range RA1 to the second rotation angle range RA2, the position (posture) of the camera 3 can be maintained by the support pin 53. As a result, when the power transmission member 5 rotates and moves from the second rotation angle range RA2 to the first rotation angle range RA1, the first locking pin 51 of the power transmission member 5 can be reliably inserted into the first locking groove 31 of the camera 3.
[0044] Although the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0045] In the camera device of the present invention, for example, the second rotation axis A2 of the shutter member 4 and the third rotation axis A3 of the power transmission member 5 may coincide with each other. [Explanation of symbols]
[0046] 1...camera device, 2...base member, 3...camera, 4...shutter member, 5...power transmission member, 6...motor, 31...first locking groove, 41...second locking groove, 411...first end (end) of second locking groove 41, 51...first locking pin, 52...second locking pin, 53...support pin, A1...first rotation shaft, A2...second rotation shaft, A3...third rotation shaft, P41...cover position, P42...open position, RA1...first rotation angle range, RA2...second rotation angle range, RD1...first rotation direction, RD2...second rotation direction
Claims
1. A base member; a camera attached to the base member so as to be rotatable about a first rotation axis; a shutter member attached to the base member so as to be rotatable about a second rotation axis parallel to the first rotation axis between a cover position for covering the camera and an open position for exposing the camera to the outside; a power transmission member attached to the base member so as to be rotatable about a third rotation axis parallel to the first rotation axis; a motor that rotates the power transmission member, the power transmission member rotates the camera in accordance with rotation of the power transmission member within a first rotation angle range of the power transmission member; rotating the shutter member in accordance with rotation of the power transmission member in a second rotation angle range of the power transmission member that is different from the first rotation angle range; the power transmission member includes a first locking pin and a second locking pin that are arranged at a distance from each other in a circumferential direction of the third rotating shaft at a position radially spaced from the third rotating shaft, the camera has a first engagement groove formed to extend in a radial direction of the first rotation shaft, the first locking pin is inserted into the first locking groove when the power transmission member is positioned in the first rotation angle range, and is removed from the first locking groove at least when the power transmission member is positioned in the second rotation angle range, the camera rotates in accordance with the rotation of the power transmission member in a state in which the first locking pin is inserted into the first locking groove, the shutter member is formed in an arc shape centered on the third rotation shaft at least when the shutter member is disposed at the open position, and has a second locking groove into which the second locking pin is inserted, the second locking pin is movable in a longitudinal direction of the second locking groove when the power transmission member is positioned at least in the first rotation angle range, and contacts an end of the second locking groove in the longitudinal direction when the power transmission member is positioned in the second rotation angle range, The shutter member rotates in conjunction with the rotation of the power transmission member when the second locking pin comes into contact with the longitudinal end of the second locking groove.
2. the first rotation angle range and the second rotation angle range of the power transmission member are positioned adjacent to each other in a circumferential direction of the power transmission member centered on the third rotation shaft, when the power transmission member rotates in a first rotation direction from the first rotation angle range to the second rotation angle range in the second rotation angle range, the shutter member moves from the open position to the cover position, 2. The camera device according to claim 1, wherein when the power transmission member rotates in a second rotation direction opposite to the first rotation direction in the second rotation angle range, the shutter member moves from the cover position toward the open position in the second rotation angle range.
3. the power transmission member engages with the camera in the first rotation angle range, so that the camera rotates in accordance with the rotation of the power transmission member; When the power transmission member is positioned outside the first rotation angle range, the power transmission member is disengaged from the camera, the power transmission member engages with the shutter member in the second rotation angle range, whereby the shutter member rotates in conjunction with the rotation of the power transmission member; 3. The camera device according to claim 1, wherein the power transmission member is disengaged from the shutter member by being positioned outside the second rotation angle range.
4. 4. The camera device according to claim 1, wherein the power transmission member has a support pin that supports the camera so as to suppress rotation of the camera about the first rotation axis when the power transmission member is located in the second rotation angle range.
Citation Information
Patent Citations
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