Patent Publication Number: US-2022219609-A1

Title: Vehicle mirror device

Description:
FIELD 
     The present invention relates to a vehicle mirror device. 
     BACKGROUND 
     A known structure of vehicle mirror devices includes a housing accommodating a mirror member, a mirror drive unit driving the mirror member to adjust the rotation position, and a housing drive unit driving the housing to execute retraction and extension (for example, see Patent Literature 1). 
     CITATION LIST 
     Patent Literature 
     Patent Literature 1: Japanese Unexamined Patent Application Publication (Translation of PCT Application) No. 2017-537014 
     SUMMARY 
     Technical Problem 
     Such vehicle mirror devices are required to have a structure in which a main body is rotatable at speed corresponding to the situation. 
     The present invention has been made in consideration of the problem described above, and an object of the present invention is to provide a vehicle mirror device capable of rotating a main body at speed corresponding to the situation. 
     Solution to Problem 
     A vehicle mirror device according to the present invention includes: a main body including a mirror member and a case member, the mirror member and the case member being provided to be movable integrally with each other; a drive unit configured to rotate the main body around a first rotation axis and a second rotation axis, the first rotation axis extending along an up-down direction in a vehicle mounted state, the second rotation axis extending along a left-right direction in the vehicle mounted state; and a control unit configured to control the drive unit such that the main body rotates in a rotation direction and at rotational speed in accordance with a type of a signal from a vehicle. 
     The signal from the vehicle may include a retraction signal to retract the main body, an extension signal to extend the main body, and an adjustment signal to adjust a rotation position of the main body in an extended state. When the signal from the vehicle is the retraction signal or the extension signal, the control unit may set the rotational speed of the main body to be higher than rotational speed set when the signal from the vehicle is the adjustment signal. 
     When the signal from the vehicle is the retraction signal or the extension signal, the control unit may control the drive unit such that the main body rotates around the first rotation axis. 
     The drive unit may include a first drive unit configured to rotate the main body around the first rotation axis and a second drive unit configured to rotate the main body around the second rotation axis. The control unit may control the first drive unit when the signal from the vehicle is the retraction signal or the extension signal. 
     The vehicle mirror device may further include a storage unit configured to store therein a rotation position of the main body. The control unit may control the drive unit on the basis of the rotation position of the main body stored in the storage unit. 
     The storage unit may store therein the rotation position of the main body in retracting the main body. When retracting the main body, the control unit may control the drive unit such that the main body is disposed in the rotation position of the main body stored in the storage unit. 
     The storage unit may store therein the rotation position of the main body in extending the main body. When extending the main member unit, the control unit may control the drive unit such that the main body is disposed in the rotation position of the main body stored in the storage unit. 
     A vehicle mirror device according to the present invention includes: a main body including a mirror member; a drive unit configured to rotate the main body around a first rotation axis and a second rotation axis, the first rotation axis extending along an up-down direction in a vehicle mounted state, and the second rotation axis extending along a left-right direction in the vehicle mounted state; and a control unit configured to control the drive unit such that the main body rotates in a predetermined rotation direction and at predetermined rotational speed in accordance with a signal from a vehicle, the signal from the vehicle being different from an operation signal to operate the main body. 
     The predetermined rotation speed may be higher than rotational speed set in adjusting a rotation position of the main body in an extended state. 
     The main body may be provided on each of right and left sides of the vehicle. The signal from the vehicle may include a direction indication signal indicating an indication direction of a direction indicator of the vehicle. When the signal from the vehicle is the direction indication signal, the control unit may control the drive unit such that the main body on a side, of the right and left sides of the vehicle, corresponding to the indication direction indicated with the direction indication signal rotates toward an outside of the vehicle. 
     The signal from the vehicle may include a shift lever signal indicating a position of a shift lever of the vehicle. When the signal from the vehicle is the shift lever signal, and the shift lever signal indicates that the position of the shift lever is a reverse position, the control unit may control the drive unit such that the main body rotates downward in a vehicle mounted state. 
     The main body may be provided on each of right and left sides of the vehicle. The signal from the vehicle may include a getting-off signal output when a passenger on a seat on a side opposite to a driver&#39;s seat in the left-right direction in the vehicle gets off from the vehicle. When the signal from the vehicle is the getting-off signal, the control unit may control the drive unit such that the main body on the side opposite to the driver&#39;s seat in right and left sides in the vehicle rotates toward an outside of the vehicle. 
     The vehicle mirror device may further include a storage unit configured to store therein a rotation position of the main body. The control unit may control the drive unit on the basis of the rotation position of the main body stored in the storage unit. 
     Advantageous Effects of Invention 
     The present invention provides a vehicle mirror device capable of rotating the main body at speed corresponding to the situation. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a plan view illustrating an example of a vehicle including a vehicle mirror device according to an embodiment. 
         FIG. 2  is a front view of the vehicle mirror device according to the present embodiment. 
         FIG. 3  is a side view of the vehicle mirror device according to the present embodiment. 
         FIG. 4  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 5  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 6  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 7  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 8  is a plan view illustrating an example of a vehicle including a vehicle mirror device according to an embodiment. 
         FIG. 9  is a front view of the vehicle mirror device according to the present embodiment. 
         FIG. 10  is a side view of the vehicle mirror device according to the present embodiment. 
         FIG. 11  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 12  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 13  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 14  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 15  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 16  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 17  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 18  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 19  is a diagram illustrating an example of operations of the vehicle mirror device. 
         FIG. 20  is a diagram illustrating an example of operations of the vehicle mirror device. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     An embodiment according to the present invention will be described below with reference to the drawings. The present invention is not limited by the embodiment. Constituent elements in the following embodiments include elements that can be replaced or conceivable by the skilled person, or substantially the same constituent elements. 
     In the following explanation, the front-rear direction, the up-down direction, and the left-right direction are directions in the vehicle mounted state in which the vehicle mirror device is mounted on the vehicle, and directions when viewing the traveling direction of the vehicle from the driver&#39;s seat. In the present embodiment, the up-down direction is parallel with the vertical direction, and the left-right direction is the horizontal direction. In the drawings, viewing from above is referred to as a plan vision and the drawing thereof is referred to as a plan view, and viewing from the rear is referred to as a front vision and the drawing thereof is referred to as a front view. 
       FIG. 1  is a plan view illustrating an example of a vehicle M including a vehicle mirror device  100  according to the present embodiment. As illustrated in  FIG. 1 , the vehicle mirror device  100  is what is called a door mirror, and attached to each of outer sides of the vehicle M, that is, each of left and right doors DL and DR of the vehicle M. The right and left vehicle mirror devices  100  are substantially symmetrical in the left-right direction. 
       FIG. 2  is a front view of the vehicle mirror device  100  according to the present embodiment.  FIG. 3  is a side view of the vehicle mirror device  100  according to the present embodiment.  FIG. 2  and  FIG. 3  illustrate the vehicle mirror device  100  configured as a door mirror.  FIG. 2  and  FIG. 3  illustrate a door mirror on the left side of the vehicle M illustrated in  FIG. 1 . 
     The vehicle mirror device  100  includes a main body  10 , a vehicle connection part  20 , a drive unit  30 , and a control unit  40 . The main body  10  includes a mirror member  11  and a case member  12 . The mirror member  11  is formed in a plate shape using, for example, glass or resin. The mirror member  11  includes a reflection surface  11   a  on an end surface on the rear side in the vehicle mounted state. The case member  12  is provided to cover a surface  11   b  opposite to the reflection surface  11   a  in the mirror member  11 . The case member  12  is provided integrally with the mirror member  11 . The case member  12  is hollow and forms a space capable of containing other components between the case member  12  and the mirror member  11 . 
     In the vehicle mirror device  100  according to the present embodiment, the main body  10  is in a state in which the whole main body  10  is exposed to the outside. Specifically, the vehicle mirror device  100  has a structure provided with no housing surrounding the front and the rear, the right and the left, and the ahead of the main body  10 . In this structure, substantially the whole surface of the outer shape portion of the main body  10  in front view is the reflection surface  11   a , as illustrated in  FIG. 2 . For this reason, this structure secures a sufficiently wide reflection surface  11   a  even when the main body  10  is miniaturized. In addition, providing no housing achieves a structure in which the housing is not reflected on the reflection surface  11   a  as viewed from the driver&#39;s seat, even when the main body  10  is largely rotated in the up-down direction and the left-right direction. 
     In the main body  10 , the mirror member  11  and the case member  12  are provided to be movable integrally with each other. In this structure, the whole main body  10  exposed to the outside moves with respect to the vehicle connection part  20 , and thereby retracted in a certain retracted state, extended in a certain extended state, and adjusted to a predetermined rotation position in the extended state. Specifically, in this structure, the main body  10  is directly rotated both in executing retraction and extension and in adjusting the rotation position in the extended state. 
     The vehicle connection part  20  connects the main body  10  to the vehicle M. The vehicle connection part  20  is connected to the case member  12  of the main body  10  to support the main body  10 . The main body  10  is movable in the state of being supported with the vehicle connection part  20 . 
     The drive unit  30  rotates the main body  10  around a first rotation axis AX 1  and a second rotation axis AX 2 . The first rotation axis AX 1  is an axis extending along the up-down direction. The second rotation axis AX 2  is an axis extending along the left-right direction. The drive unit  30  includes a first drive unit  31  that rotates the main body  10  around the first rotation axis AX 1 , and a second drive unit  32  that rotates the main body  10  around the second rotation axis AX 2 . Each of the first drive unit  31  and the second drive unit  32  includes a drive source, such as a motor, and a transmission mechanism, such as gears. The first drive unit  31  and the second drive unit  32  are illustrated with blocks in  FIG. 1  and  FIG. 2 . The first drive unit  31  and the second drive unit  32  may be arranged in, for example, a space formed with the mirror member  11  and the case member  12  of the main body  10 . 
     The drive unit  30  is capable of disposing the main body  10  in a desired rotation position P by rotating the main body  10 . In the present embodiment, the rotation position P can be expressed with a rotation angle  81  in the rotation direction around the first rotation axis AX 1  and the rotation angle  82  in the rotation direction around the second rotation axis AX 2  with respect to a reference position, for example, in the case of setting the certain reference position. A rotation position P may be expressed by another method. 
     The control unit  40  includes a microprocessor, such as a central processing unit (CPU), a memory, such as a read-only memory (ROM) and a random-access memory (RAM), and a storage. 
     In the present embodiment, the control unit  40  controls the drive unit  30  such that the main body  10  rotates in a rotation direction and at rotational speed in accordance with a signal S from the vehicle. Examples of the signal S from the vehicle include a retraction signal S 1  (see  FIG. 4 ) to retract the main body  10 , an extension signal S 2  (see  FIG. 5 ) to extend the main body  10 , and an adjustment signal to adjust the rotation position of the main body  10  in the extended state. 
     The retraction signal S 1  and the extension signal S 2  are output from the vehicle in response to, for example, operation of a retraction switch or an extension switch provided in the vehicle. Each of the retraction signal S 1  and the extension signal S 2  is output by executing an operation of executing a retracting operation or an extension operation with the retraction switch or the extension switch once. 
     The adjustment signal includes a right-left adjustment signal S 3  (see  FIG. 6 ) to adjust the rotation position in the left-right direction in the vehicle mounted state and an up-down adjustment signal S 4  (see  FIG. 7 ) to adjust the rotation position in the up-down direction in the vehicle mounted state. The right-left adjustment signal S 3  and the up-down adjustment signal S 4  are output from the vehicle in response to, for example, operation of a rotation position adjustment switch provided on the vehicle. Each of the adjustment signals S 3  and S 4  includes information relating to the rotation direction and the rotational speed. In the right-left adjustment signal S 3 , the information relating to the rotation direction is a rotation direction (either left or right) around the first rotation axis AX 1 . In the up-down adjustment signal S 4 , and the information relating to the rotation direction the up-down adjustment signal S 4  is a rotation direction (either up or down) around the second rotation axis AX 2 . The rotation amount is set on the basis of, for example, the length of the time for which the rotation position adjustment switch is operated. In this case, the rotation amount can be set such that the longer in time the rotation position adjustment switch is operated, the larger the rotation amount; and the shorter in time the rotation position adjustment switch is operated, the smaller the rotation amount. 
     When the signal S from the vehicle is the retraction signal S 1  or the extension signal S 2 , the control unit  40  sets the rotational speed of the main body  10  to be higher than the rotational speed set when the signal from the vehicle is the adjustment signal S 3  or S 4 . Such setting enables execution of retraction and extension of the main body  10  in a shorter time. In addition, when adjusting the rotation position of the main body  10 , such setting enables adjustment at rotational speed not too high for the driver or the like who executes adjustment. 
     When the signal S from the vehicle is the retraction signal S 1  or the extension signal S 2 , the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1 . This control is referred to as a “first retraction/extension mode” hereinafter. Executing the first retraction/extension mode enables prompt retraction and extension of the main body  10 . 
     When the signal S from the vehicle is the retraction signal S 1  or the extension signal S 2 , the control unit  40  may control the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . This control is referred to as a “second retraction/extension mode” hereinafter. Executing the second retraction/extension mode enables adjustment of the rotation position of the main body  10  for the rotation direction around the second rotation axis AX 2 . 
     In addition, when the signal S from the vehicle is the adjustment signal S 3  or S 4 , the control unit  40  controls the drive unit  30  such that the main body  10  is rotated around the first rotation axis AX 1  and the second rotation axis AX 2  in accordance with the adjustment details. This control enables adjustment of the reflection surface  11   a  to a desired rotation position. 
     A storage unit  50  stores therein the rotation position of the main body  10 . The storage unit  50  is capable of storing therein, for example, the retracted position serving as the rotation position of the main body  10  in retracting the main body  10 , and the extended position serving as the rotation position of the main body  10  in extending the main body  10 , and the like. 
     The control unit  40  described above controls the drive unit  30  on the basis of the rotation position of the main body  10  stored in the storage unit  50 . When the main body  10  is retracted, the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in a retracted position P 1  stored in the storage unit  50 . When the main body  10  is extended, the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in an extended position P 2  stored in the storage unit  50 . 
     For example, when the control unit  40  executes the first retraction/extension mode, only the rotation angle θ 1  around the first rotation axis AX 1  is set for the retracted position P 1  and the extended position P 2 , and the rotation angle θ 2  around the second rotation axis AX 2  is not set for them. When the control unit  40  executes the second retraction/extension mode, both the rotation angle θ 1  around the first rotation axis AX 1  and the rotation angle θ 2  around the second rotation axis AX 2  are set for the retracted position P 1  and the extended position P 2 . 
     The following is an explanation of operations of the vehicle mirror device  100  configured as described above.  FIG. 4  to  FIG. 7  are diagrams illustrating an example of operations of the vehicle mirror device  100 . 
     As illustrated in  FIG. 4 , when the retraction signal S 1  is transmitted from the vehicle in the state in which the main body  10  is disposed in the extended position P 2 , the control unit  40  controls the drive unit  30  such that the main body  10  is retracted. In this case, the control unit  40  controls the drive unit  30 , for example, on the basis on information of the retracted position P 1  stored in the storage unit  50 . Specifically, the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in the retracted position P 1 . In the first retraction/extension mode, the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1 . In the second retraction/extension mode, the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . In the second retraction/extension mode, when a difference in rotation position between the extended position P 2  and the retracted position P 1  is 0 for the rotation direction around the second rotation axis AX 2 , the main body  10  is not required to rotate in the rotation direction around the second rotation axis AX 2 . When the main body  10  is retracted, the control unit  40  controls the drive unit  30  such that the rotational speed is controlled to first speed V 1 . With this control, the main body  10  is disposed in the retracted position P 1  from the extended position P 2 . 
     As illustrated in  FIG. 5 , when the extension signal S 2  is transmitted from the vehicle in the state in which the main body  10  is disposed in the retracted position P 1 , the control unit  40  controls the drive unit  30  such that the main body  10  is extended. In this case, the control unit  40  controls the drive unit  30 , for example, on the basis of information on the extended position P 2  stored in the storage unit  50 . Specifically, the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in the extended position P 2 . In the first retraction/extension mode, the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1 . In the second retraction/extension mode, the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . In the second retraction/extension mode, when a difference in rotation position between the retracted position P 1  and the extended position P 2  is 0 for the rotation direction around the second rotation axis AX 2 , the main body  10  is not required to rotate in the rotation direction around the second rotation axis AX 2 . When the main body  10  is extended, the control unit  40  controls the drive unit  30  such that the rotational speed is controlled to second speed V 2 . With this control, the main body  10  is disposed in the extended position P 2  from the retracted position P 1 . 
     As illustrated in  FIG. 6 , when the right-left adjustment signal S 3  is transmitted from the vehicle in the state in which the main body  10  is disposed in the extended position P 2 , the control unit  40  controls the drive unit  30  such that the main body  10  rotates on the basis of information on the rotation direction and the rotation amount included in the right-left adjustment signal S 3 . Specifically, the control unit  40  adjusts the rotation position of the main body  10  in the left-right direction by rotating the main body  10  by a predetermined rotation amount in the rotation direction (either left or right) around the first rotation axis AX 1 . When adjusting the rotation position of the main body  10  in the left-right direction, the control unit  40  controls the drive unit  30  such that the rotational speed is controlled to third speed V 3 . With this control, the main body  10  is disposed in an adjustment position P 3  acquired by rotating the main body  10  leftward or rightward by a predetermined rotation amount from the extended position P 2 . 
     As illustrated in  FIG. 7 , when the up-down adjustment signal S 4  is transmitted from the vehicle in the state in which the main body  10  is disposed in the extended position P 2 , the control unit  40  controls the drive unit  30  such that the main body  10  rotates on the basis of information on the rotation direction and the rotation amount included in the up-down adjustment signal S 4 . Specifically, the control unit  40  adjusts the rotation position of the main body  10  in the up-down direction by rotating the main body  10  by a predetermined rotation amount in the rotation direction (either up or down) around the second rotation axis AX 2 . When adjusting the rotation position of the main body  10  in the up-down direction, the control unit  40  controls the drive unit  30  such that the rotational speed is controlled to fourth speed V 4 . With this control, the main body  10  is disposed in an adjustment position P 4  acquired by rotating the main body  10  upward or downward by a predetermined rotation amount from the extended position P 2 . 
     When executing the operations illustrated in  FIG. 4  to  FIG. 7 , the control unit  40  controls the drive unit  30  such that the first speed V 1  in retracting the main body  10  and the second speed V 2  in extending the main body  10  are higher than the third speed V 3  in adjusting the rotation position of the main body  10  in the left-right direction and the fourth speed V 4  in adjusting the rotation position of the main body  10  in the up-down direction. When the main body  10  is retracted or extended, the rotation amount is larger than that in adjustment of the rotation position of the main body  10 . For this reason, the first speed V 1  and the second speed V 2  in retracting and extending the main body  10  are set higher than the third speed V 3  and the fourth speed V 4  in adjusting the rotation position. This setting shortens the driver&#39;s waiting time. In addition, in adjusting the rotation position of the main body  10 , this setting enables adjustment at the rotational speed that is not too fast for the driver or the like performing adjustment. 
     As described above, the vehicle mirror device  100  according to the present embodiment includes: the main member part  10  including the mirror member  11  and the case member  12  and in which the mirror member  11  and the case member  12  are provided to be movable integrally with each other; the drive unit  30  that rotates the main body  10  around the first rotation axis AX 1  extending along the up-down direction in the vehicle mounted state and the second rotation axis AX 2  extending along the left-right direction in the vehicle mounted state; and the control unit  40  that controls the drive unit  30  such that the main body  10  rotates in the rotation direction and at the rotational speed in accordance with the type of the signal S from the vehicle. 
     Because the main body  10  is movable in the state in which the whole main body  10  is exposed to the outside, this structure enables miniaturization in comparison with the structure in which the main body  10  is contained in a housing or the like. In addition, this structure enables rotation of the main body  10  at speed in accordance with the situation, by rotating the main body  10  in the rotation direction and at the rotational speed in accordance with the type of the signal S from the vehicle. 
     In the vehicle mirror device  100  according to the present embodiment, the signal S from the vehicle includes the retraction signal S 1  to retract the main body  10 , the extension signal S 2  to extend the main body  10 , and the adjustment signals S 3  and S 4  to adjust the rotation position of the main body  10  in the extended state. When the signal from the vehicle is the retraction signal S 1  or the extension signal S 2 , the control unit  40  sets the rotational speed of the main body  10  to be higher than the rotational speed set when the signal from the vehicle is the adjustment signal S 3  or S 4 . This setting enables retraction and extension of the main body  10  in a shorter time. In addition, when adjusting the rotation position of the main body  10 , the setting enables adjustment at rotational speed that is not too fast for the driver or the like performing adjustment. 
     In the vehicle mirror device  100  according to the present embodiment, when the signal S from the vehicle is the retraction signal S 1  or the extension signal S 2 , the control unit  40  controls the drive unit  30  such that the main body  10  rotates around the first rotation axis AX. This control enables prompt retraction and extension of the main body  10 . 
     In the vehicle mirror device  100  according to the present embodiment, the drive unit  30  includes the first drive unit  31  rotating the main body  10  around the first rotation axis AX 1 , and the second drive unit  32  rotating the main body  10  around the second rotation axis AX 2 , and the control unit  40  controls the first drive unit  31  when the signal S from the vehicle is the retraction signal S 1  or the extension signal S 2 . Efficiency of control of retraction and extension can be improved by adopting the structure of using the first drive unit  31  when the main body  10  is retracted or extended. 
     The vehicle mirror device  100  according to the present embodiment further includes the storage unit  50  storing therein the rotation position of the main body  10 , and the control unit  40  controls the drive unit  30  on the basis of the rotation position of the main body  10  stored in the storage unit  50 . This structure enables easy control of retraction and extension on the basis of the rotation position stored in the storage unit  50 . 
     In addition, the storage unit  50  stores therein the retracted position P 1  serving as the rotation position of the main body  10  in retracting the main body  10 , and when retracting the main body  10 , the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in the retracted position P 1  stored in the storage unit  50 . This structure enables easy control in retraction on the basis of the retracted position P 1  stored in the storage unit  50 . 
     In addition, the storage unit  50  stores therein the rotation position of the main body  10  in extending the main body  10 , and when extending the main body  10 , the control unit  40  controls the drive unit  30  such that the main body  10  is disposed in the rotation position of the main body  10  stored in the storage unit  50 . This structure enables easy control in extension on the basis of the extended position P 2  stored in the storage unit  50 . 
     Next, another embodiment according to the present invention will be described on the basis of the drawings. The present invention is not limited by the embodiment. Constituent elements in the following embodiment include elements that can be replaced and conceivable by the skilled person, or substantially the same constituent elements. 
     In the following explanation, the front-rear direction, the up-down direction, and the left-right direction are directions in the vehicle mounted state in which the vehicle mirror device is mounted on the vehicle, and directions when viewing the traveling direction of the vehicle from the driver&#39;s seat. In the present embodiment, the up-down direction is parallel with the vertical direction, and the left-right direction is the horizontal direction. In the drawings, viewing from above is referred to as a plan vision and the drawing thereof is referred to as a plan view, and viewing from the rear is referred to as a front vision and the drawing thereof is referred to as a front view. 
       FIG. 8  is a plan view illustrating an example of a vehicle M 2  including a vehicle mirror device  200  according to the present embodiment. As illustrated in  FIG. 8 , the vehicle mirror device  200  is what is called a door mirror, and attached to each of outer sides of the vehicle M 2 , that is, each of left and right doors DL and DR of the vehicle M 2 . The right and left vehicle mirror devices  200  are substantially symmetrical in the left-right direction. 
       FIG. 9  is a front view of the vehicle mirror device  200  according to the present embodiment.  FIG. 10  is a side view of the vehicle mirror device  200  according to the present embodiment.  FIG. 9  and  FIG. 10  illustrate the vehicle mirror device  200  configured as a door mirror.  FIG. 9  and  FIG. 10  illustrate a door mirror on the left side of the vehicle M 2  illustrated in  FIG. 8 . 
     The vehicle mirror device  200  includes a main body  110 , a vehicle connection part  120 , a drive unit  130 , and a control unit  140 . The main body  110  includes a mirror member  111  and a case member  112 . The mirror member  111  is formed in a plate shape using, for example, glass or resin. The mirror member  111  includes a reflection surface  111   a  on an end surface on the rear side in the vehicle mounted state. The case member  112  is provided to cover a surface  111   b  opposite to the reflection surface  111   a  in the mirror member  111 . The case member  112  is provided integrally with the mirror member  111 . The case member  112  is hollow and forms a space capable of containing other components between the case member  112  and the mirror member  111 . 
     In the vehicle mirror device  200  according to the present embodiment, the main body  110  is in a state in which the whole main body  110  is exposed to the outside. Specifically, the vehicle mirror device  200  has a structure provided with no housing surrounding the front and the rear, the right and the left, and the ahead of the main body  110 . In this structure, substantially the whole surface of the outer shape portion of the main body  110  in front view is the reflection surface  111   a , as illustrated in  FIG. 9 . For this reason, this structure secures a sufficiently wide reflection surface  111   a  even when the main body  110  is miniaturized. In addition, providing no housing achieves a structure in which the housing is not reflected on the reflection surface  111   a  as viewed from the driver&#39;s seat, even when the main body  110  is largely rotated in the up-down direction and the left-right direction. 
     In the main body  110 , the mirror member  111  and the case member  112  are provided to be movable integrally with each other. In this structure, the whole main body  110  in the state of being exposed to the outside moves with respect to the vehicle connection part  120 , and thereby retracted in a certain retracted state, extended in a certain extended state, and adjusted to a predetermined rotation position in the extended state. Specifically, in this structure, the main body  110  is directly rotated both in executing retraction and extension and in adjusting the rotation position in the extended state. 
     The vehicle connection part  120  connects the main body  110  to the vehicle M 2 . The vehicle connection part  120  is connected to the case member  112  of the main body  110  to support the main body  110 . The main body  110  is movable in the state of being supported with the vehicle connection part  120 . 
     The drive unit  130  rotates the main body  110  around a first rotation axis AX 1  and a second rotation axis AX 2 . The first rotation axis AX 1  is an axis extending along the up-down direction. The second rotation axis AX 2  is an axis extending along the left-right direction. The drive unit  130  includes a first drive unit  131  that rotates the main body  110  around the first rotation axis AX 1  and a second drive unit  132  rotating the main body  110  around the second rotation axis AX 2 . Each of the first drive unit  131  and the second drive unit  132  includes a drive source, such as a motor, and a transmission mechanism, such as gears. The first drive unit  131  and the second drive unit  132  are illustrated with blocks in  FIG. 8  and  FIG. 9 , but may be arranged in, for example, a space formed with the mirror member  111  and the case member  112  of the main body  110 . 
     The drive unit  130  is capable of disposing the main body  110  in a desired rotation position P by rotating the main body  110 . In the present embodiment, the rotation position P can be expressed with a rotation angle  81  in the rotation direction around the first rotation axis AX 1  and the rotation angle  82  in the rotation direction around the second rotation axis AX 2  with respect to a reference position, for example, in the case of setting the certain reference position. A rotation position P may be expressed by another method. 
     The control unit  140  includes a microprocessor, such as a central processing unit (CPU), a memory, such as a read-only memory (ROM) and a random-access memory (RAM), and a storage. 
     In the present embodiment, the control unit  140  controls the drive unit  130  such that the main body  110  rotates in the rotation direction and at the rotational speed in accordance with a signal S 10  from the vehicle. Examples of the signal S 10  from the vehicle include a retraction signal S 11  (see  FIG. 11 ) to retract the main body  110 , an extension signal S 12  (see  FIG. 12 ) to extend the main body  110 , an adjustment signal to adjust the rotation position of the main body  110  in the extended state, and other signals. 
     The retraction signal S 11  and the extension signal S 12  are operation signals to operate the main body  110 , and output from the vehicle in response to, for example, operation of a retraction switch or an extension switch provided on the vehicle. Each of the retraction signal S 11  and the extension signal S 12  is output by executing an operation of executing a retracting operation or an extension operation with the retraction switch or the extension switch once. 
     The adjustment signal includes a right-left adjustment signal S 13  (see  FIG. 13 ) to adjust the rotation position in the left-right direction in the vehicle mounted state and an up-down adjustment signal S 14  (see  FIG. 14 ) to adjust the rotation position in the up-down direction in the vehicle mounted state. The right-left adjustment signal S 13  and the up-down adjustment signal S 14  are output from the vehicle in response to, for example, operation of a rotation position adjustment switch provided on the vehicle. Each of the adjustment signals S 13  and S 14  includes information relating to the rotation direction and the rotational speed. In the right-left adjustment signal S 13 , the information relating to the rotation direction is a rotation direction (either left or right) around the first rotation axis AX 1 . In the up-down adjustment signal S 14 , the information relating to the rotation direction is a rotation direction (either up or down) around the second rotation axis AX 2 . The rotation amount is set on the basis of, for example, the length of the time for which the rotation position adjustment switch is operated. In this case, the rotation amount can be set such that the longer in time the rotation position adjustment switch is operated, the larger the rotation amount; and the shorter in time the rotation position adjustment switch is operated, the smaller the rotation amount. 
     The signal S 10  from the vehicle also includes signals different from the operation signals described above. For example, the signal S 10  from the vehicle includes a direction indication signal S 15 , a shift lever signal S 16 , and a getting-off signal S 17 . The direction indication signal S 15  is a signal output when a direction indicator (not illustrated) provided on the vehicle M 2  is operated. The direction indication signal S 15  includes information relating to the indication direction (either left or right direction) indicated with the direction indicator. 
     The shift lever signal S 16  is a signal output when a shift lever (not illustrated) provided on the vehicle M 2  is operated. The shift lever signal S 16  includes information indicating the position of the shift lever. The shift lever is switchable to, for example, a forward position, a reverse position, a parking position, and a neutral position. 
     The getting-off signal S 17  is a signal output when the passenger on the seat on the opposite side of the driver&#39;s seat in the left-right direction in the vehicle M 2  gets off from the vehicle. The getting-off signal S 17  includes, for example, at least one of an engine stop signal output when the engine of the vehicle M 2  stops, an unlock signal output when the door of the vehicle M 2  is unlocked, a belt release signal output when the seatbelt is released, a parking signal output when the shift lever is switched to the parking position, and an passenger detection signal detecting that an passenger is seated on the passenger seat. Two or more of these signals may be used in combination, as the getting-off signal S 17 . 
     The control unit  140  controls the rotation position of the main body  110  on the basis of the operation signal (retraction signal S 11 , extension signal S 12 , and adjustment signals S 13  and S 14 ). When the signal S 10  from the vehicle is the retraction signal S 11  or the extension signal S 12 , the control unit  140  sets the rotational speed of the main body  110  to be higher than the rotational speed set when the signal from the vehicle is the adjustment signal S 13  or S 14 . Such setting enables execution of retraction and extension of the main body  110  in a shorter time. In addition, when adjusting the rotation position of the main body  110 , such setting enables adjustment at rotational speed not too high for the driver or the like who executes adjustment. 
     When the signal S 10  from the vehicle is the retraction signal S 11  or the extension signal S 12 , the control unit  140  controls the drive unit  130  such that the main body  110  is rotated around the first rotation axis AX 1 . This control is referred to as a “first retraction/extension mode” hereinafter. Executing the first retraction/extension mode enables prompt retraction and extension of the main body  110 . 
     When the signal S 10  from the vehicle is the retraction signal S 11  or the extension signal S 12 , the control unit  140  may control the drive unit  130  such that the main body  110  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . This control is referred to as a “second retraction/extension mode” hereinafter. Executing the second retraction/extension mode enables adjustment of the rotation position of the main body  110  for the rotation direction around the second rotation axis AX 2 . 
     In addition, when the signal S 10  from the vehicle is the adjustment signal S 13  or S 14 , the control unit  140  controls the drive unit  130  such that the main body  110  is rotated around the first rotation axis AX 1  and the second rotation axis AX 2  in accordance with the adjustment details. This control enables adjustment of the reflection surface  111   a  to a desired rotation position. 
     In addition, when the signal S 10  from the vehicle is, for example, the direction indication signal S 15 , the shift lever S 16 , or the getting-off signal S 17  described above, the control unit  140  controls the drive unit  130  such that the main body  110  rotates in a predetermined rotation direction and at predetermined rotational speed in accordance with the signal S 10  from the vehicle, as described hereinafter. The control unit  140  is capable of setting the predetermined rotational speed to rotational speed higher than the rotational speed set in retracting or extending the main body  110 . 
     When the signal S 10  from the vehicle is the direction indication signal S 15 , the control unit  140  controls the drive unit  130  such that the main body  110  on the side, of the right and left of the vehicle M 2 , corresponding to the indication direction indicated with the direction indirection signal S 15  rotates toward the outside of the vehicle M 2 . Specifically, when the indication direction from the direction indicator is the left direction, the control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the left side of the vehicle M 2  rotates toward the outside of the vehicle M 2 . When the indication direction from the direction indicator is the right direction, the control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the right side of the vehicle M 2  rotates toward the outside of the vehicle M 2 . This control is referred to as “indicator rotation mode” hereinafter. 
     When the signal S 10  from the vehicle is the shift lever signal S 16 , and the position indicated with the shift lever signal S 16  is the reverse position, the control unit  140  controls the drive unit  130  such that the main body  110  rotates downward in the vehicle mounted state. The control unit  140  may control the drive unit  130  to rotate the main body  110  provided on one of the right and left vehicle mirror devices  200  of the vehicle M 2 , or may control the drive unit  130  to rotate both the main body  110  of the right and left vehicle mirror devices  200  of the vehicle M 2 . For example, the control unit  140  may control the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the side opposite to the driver&#39;s seat in the left-right direction of the vehicle M 2 , that is, disposed on the passenger seat side, rotates downward. This control is referred to as “shift rotation mode” hereinafter. 
     When the signal S 10  from the vehicle is the getting-off signal S 17 , the control unit  140  may control the drive unit  130  such that the main body  110  on the side opposite to the driver&#39;s seat in the left-right direction of the vehicle M 2 , that is, on the passenger seat side, rotates toward the outside of the vehicle M 2 . Specifically, when the driver&#39;s seat is located on the right side in the vehicle M 2 , the control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the left side of the vehicle M 2  rotates toward the outside of the vehicle M 2 . In addition, when the driver&#39;s seat is located on the left side in the vehicle M 2 , the control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the right side of the vehicle M 2  rotates toward the outside of the vehicle M 2 . This control is referred to as “stop/release rotation mode” hereinafter. 
     The storage unit  150  stores therein the rotation position of the main body  110 . The storage unit  150  is capable of storing therein, for example, the retracted position serving as the rotation position of the main body  110  in retracting the main body  110 , the extended position serving as the rotation position of the main body  110  in extending the main body  110 , an indicator operation position serving as the rotation position at the time when the main body  110  is rotated in the indicator rotation mode, a reverse position serving as the rotation position at the time when the main body  110  is rotated in the shift rotation mode, and a stop/release position serving as the rotation position at the time when the main body  110  is rotated in the stop/release rotation mode, and the like. 
     The control unit  140  described above controls the drive unit  130  on the basis of the rotation position of the main body  110  stored in the storage unit  150 . When the main body  110  is retracted, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in the retracted position P 1  stored in the storage unit  150 . When the main body  110  is extended, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in the extended position P 2  stored in the storage unit  150 . 
     For example, when the control unit  140  executes the first retraction/extension mode, only the rotation angle  81  around the first rotation axis AX 1  is set for the retracted position P 1  and the extended position P 2 , and the rotation angle  82  around the second rotation axis AX 2  is not set for them. When the control unit  140  executes the second retraction/extension mode, both the rotation angle  81  around the first rotation axis AX 1  and the rotation angle  82  around the second rotation axis AX 2  are set for the retracted position P 1  and the extended position P 2 . 
     When the main body  110  is rotated in the indicator rotation mode, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in an indicator operation position P 5  (see  FIG. 16 ) stored in the storage unit  150 . When the main body  110  is rotated in the shift rotation mode, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in a reverse position P 6  (see  FIG. 18 ) stored in the storage unit  150 . When the main body  110  is rotated in the stop/release rotation mode, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in a stop/release position P 7  (see  FIG. 20 ) stored in the storage unit  150 . 
     When the control described above is executed, the control unit  140  may store the rotation position of the main body  110  immediately before execution of each of the indicator rotation mode, the shift rotation mode, and the stop/release rotation mode in the storage unit  150 . For example, in the indicator rotation mode, for example, after operation of the direction indicator is finished, the control unit  140  is able to cause the main body  110  to return to the original rotation position stored in the storage unit  150 . In addition, for example, in the shift rotation mode, after the shift lever is switched from the reverse position to another position, the control unit  140  is able to cause the main body  110  to return to the original rotation position stored in the storage unit  150 . In addition, for example, in the stop/release mode, at the timing after the door on the passenger seat side is opened or the like, the control unit  140  is able to cause the main body  110  to return to the original rotation position stored in the storage unit  150 . 
     The following is an explanation of operations of the vehicle mirror device  200  configured as described above.  FIG. 11  to  FIG. 14  are diagrams illustrating an example of operations of the vehicle mirror device  200  based on the operation signals. 
     As illustrated in  FIG. 11 , in the state in which the main body  110  is disposed in the extended position P 2 , when the retraction signal S 11  is transmitted from the vehicle, the control unit  140  controls the drive unit  130  such that the main body  110  is retracted. In this case, the control unit  140  controls the drive unit  130  on the basis of, for example, information on the retracted position P 1  stored in the storage unit  150 . Specifically, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in the retracted position P 1 . In the first retraction/extension mode, the control unit  140  controls the drive unit  130  such that the main body  110  rotates around the first rotation axis AX 1 . In the second retraction/extension mode, the control unit  140  controls the drive unit  130  such that the main body  110  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . In the second retraction/extension mode, when a difference in rotation position between the extended position P 2  and the retracted position P 1  is 0 for the rotation direction around the second rotation axis AX 2 , the main body  110  is not required to rotate in the rotation direction around the second rotation axis AX 2 . When the main body  110  is retracted, the control unit  140  controls the drive unit  130  such that the rotational speed is set to first speed V 1 . With this control, the main body  110  is disposed in the retracted position P 1  from the extended position P 2 . 
     As illustrated in  FIG. 12 , when the extension signal S 12  is transmitted from the vehicle in the state in which the main body  110  is disposed in the retracted position P 1 , the control unit  140  controls the drive unit  130  such that the main body  110  is extended. In this case, the control unit  140  controls the drive unit  130 , for example, on the basis of information on the extended position P 2  stored in the storage unit  150 . Specifically, the control unit  140  controls the drive unit  130  such that the main body  110  is disposed in the extended position P 2 . In the first retraction/extension mode, the control unit  140  controls the drive unit  130  such that the main body  110  rotates around the first rotation axis AX 1 . In the second retraction/extension mode, the control unit  140  controls the drive unit  130  such that the main body  110  rotates around the first rotation axis AX 1  and the second rotation axis AX 2 . In the second retraction/extension mode, when a difference in rotation position between the retracted position P 1  and the extended position P 2  is 0 for the rotation direction around the second rotation axis AX 2 , the main body  110  is not required to rotate in the rotation direction around the second rotation axis AX 2 . When the main body  110  is extended, the control unit  140  controls the drive unit  130  such that the rotational speed is set to second speed V 2 . With this control, the main body  110  is disposed in the extended position P 2  from the retracted position P 1 . 
     As illustrated in  FIG. 13 , when the right-left adjustment signal S 13  is transmitted from the vehicle in the state in which the main body  110  is disposed in the extended position P 2 , the control unit  140  controls the drive unit  130  such that the main body  110  rotates on the basis of information on the rotation direction and the rotation amount included in the right-left adjustment signal S 13 . Specifically, the control unit  140  adjusts the rotation position of the main body  110  in the left-right direction by rotating the main body  110  by a predetermined rotation amount in the rotation direction (either left or right direction) around the first rotation axis AX 1 . When adjusting the rotation position of the main body  110  in the left-right direction, the control unit  140  controls the drive unit  130  such that the rotational speed is set to third speed V 3 . With this control, the main body  110  is disposed in the adjustment position P 3  acquired by rotating the main body  110  leftward or rightward by a predetermined rotation amount from the extended position P 2 . 
     As illustrated in  FIG. 14 , when the up-down adjustment signal S 14  is transmitted from the vehicle in the state in which the main body  110  is disposed in the extended position P 2 , the control unit  140  controls the drive unit  130  such that the main body  110  rotates on the basis of information on the rotation direction and the rotation amount included in the up-down adjustment signal S 14 . Specifically, the control unit  140  adjusts the rotation position of the main body  110  in the up-down direction by rotating the main body  110  by a predetermined rotation amount in the rotation direction (either up or down direction) around the second rotation axis AX 2 . When adjusting the rotation position of the main body  110  in the up-down direction, the control unit  140  controls the drive unit  130  such that the rotational speed is set to fourth speed V 4 . With this control, the main body  110  is disposed in the adjustment position P 4  acquired by rotating the main body  110  upward or downward by a predetermined rotation amount from the extended position P 2 . 
     When executing the operations illustrated in  FIG. 11  to  FIG. 14 , the control unit  140  controls the drive unit  130  such that the first speed V 1  in retracting the main body  110  and the second speed V 2  in extending the main body  110  are higher than the third speed V 3  in adjusting the rotation position of the main body  110  in the left-right direction and the fourth speed V 4  in adjusting the rotation position of the main body  110  in the up-down direction. The rotation amount in retracting or extending the main body  110  becomes larger than that in adjusting the rotation position of the main body  110 . For this reason, the first speed V 1  and the second speed V 2  in retracting and extending the main body  110  are set higher than the third speed V 3  and the fourth speed V 4  in adjusting the rotation position. This setting shortens the driver&#39;s waiting time. In addition, when adjusting the rotation position of the main body  110 , this structure enables adjustment at the rotational speed that is not too fast for the driver or the like performing adjustment. 
       FIG. 15  to  FIG. 20  are diagrams illustrating an example of operations of the vehicle mirror device  200  based on signals different from the operation signals. In the examples of  FIG. 15  to  FIG. 20 , the vehicle M 2  is explained as the driver&#39;s own vehicle. The examples illustrated in  FIG. 15  to  FIG. 20  illustrate the case where the driver&#39;s seat is disposed on the right side in the vehicle M 2 , as an example. 
     The left drawing in  FIG. 15  illustrates the situation in which the vehicle M 2  travels in a certain lane in the state in which the main body  110  is disposed in the extended position P 2 , and another vehicle MA is traveling in the left lane of the driver&#39;s lane and behind the vehicle M 2 . The left drawing in  FIG. 15  also illustrates a visual field ST 1  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (opposite to the driver&#39;s seat). The right drawing in  FIG. 15  illustrates an example of an image reflected on the reflection surface  111   a  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (opposite to the driver&#39;s seat) from the driver&#39;s seat. 
     In the example illustrated in  FIG. 15 , when the reflection surface  111   a  of the vehicle mirror device  200  is viewed from the driver&#39;s seat, an image of a rear part of the other vehicle MA is visually recognized.  FIG. 16  illustrates an example in the case where the driver of the vehicle M 2  operates the direction indicator to set the left direction as the indication direction from the state illustrated in  FIG. 15 . The direction indication signal S 15  is output in response to operation of the direction indicator. The control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  on the side, of the right and the left sides, corresponding to the indication direction indicated with the direction indication signal S 15  rotates outward. In this case, the control unit  140  controls the drive unit  130  such that the main body  110  of the left vehicle mirror device  200  rotates outward (indicator rotation mode). In the indicator rotation mode, the control unit  140  controls the drive unit  130  such that the rotational speed is set to fifth speed V 5 . With this control, as illustrated in the left drawing in  FIG. 16 , the main body  110  is disposed to the indicator operation position P 5  acquired by rotating the main body  110  leftward by a predetermined rotation amount from the extended position P 2 . In this manner, a visual field ST 1   a  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (side opposite to the driver&#39;s seat) from the driver&#39;s seat shifts to the outside of the vehicle M 2 . Thus, as illustrated in the right and left drawings in  FIG. 16 , the visible range of the vehicle MA is expanded. Specifically, the front part of the vehicle MA can also be visually recognized. Thus, the front range, which is a blind spot when the main body  110  is disposed in the extended position P 2 , can be visually recognized from the driver&#39;s seat. 
     The left drawing in  FIG. 17  illustrates the situation in which the vehicle M 2  is going to moving backward by a certain degree in the state in which the main body  110  is disposed in the extended position P 2 . The left drawing in  FIG. 17  illustrates a situation in which two cones C 1  are arranged behind the vehicle M 2 , and a cone C 2  is disposed on the left side of the vehicle M 2 . The left drawing in  FIG. 17  also illustrates a visual field ST 2  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side from the driver&#39;s seat. The right drawing in  FIG. 17  illustrates an example of an image reflected in the reflection surface  111   a  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (opposite to the driver&#39;s seat) from the driver&#39;s seat. In the example illustrated in  FIG. 17 , when the reflection surface  111   a  of the vehicle mirror device  200  is viewed from the driver&#39;s seat, an image of the cones C 1  in the rear is visually recognized. By contrast, the cone C 2  on the left side of the vehicle M 2  is in a blind spot and is not visually recognized. 
       FIG. 18  illustrates an example of the case where the shift lever of the vehicle M 2  is operated to be changed to the reverse position from the state illustrated in  FIG. 17 . The shift lever signal S 16  is output in response to operation of the shift lever. The control unit  140  controls the drive unit  130  such that the main body  110  rotates downward. For example, the control unit  140  controls the drive unit  130  such that the main body  110  of the vehicle mirror device  200  disposed on the side, opposite to the driver&#39;s seat, of the right and the left sides of the vehicle M 2 , that is, on the passenger seat side, rotates downward (shift rotation mode). In the shift rotation mode, the control unit  140  controls the drive unit  130  such that the rotational speed is set to sixth speed V 6 . With this control, as illustrated in the left drawing in  FIG. 18 , the main body  110  is disposed in the reverse position P 6  acquired by rotating the main body  110  downward by a predetermined rotation amount from the extended position P 2 . In this manner, as illustrated in the left drawing in  FIG. 18 , a visual field ST 2   a  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (side opposite to the driver&#39;s seat) from the driver&#39;s seat shifts to the lower side of the vehicle M 2 . With this, the cone C 2  on the left side of the vehicle M 2  can also be visually recognized. As described above, the lower range, which is a blind spot when the main body  110  is disposed in the extended position P 2 , can be visually recognize from the driver&#39;s seat. 
     The left drawing in  FIG. 19  illustrates a situation in which the vehicle M 2  stops in the state in which the main body  110  is disposed in the extended position P 2 . At this stage, the engine of the vehicle M 2  is in an operating state. The left drawing in  FIG. 19  also illustrates a visual field ST 3  when the fellow passenger of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side from the seat opposite to the driver&#39;s seat, that is, from the passenger seat. The right drawing in  FIG. 15  illustrates an example of an image reflected on the reflection surface  111   a  when the driver of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (opposite to the driver&#39;s seat) from the driver&#39;s seat. 
     In the example illustrated in  FIG. 19 , when the reflection surface  111   a  of the vehicle mirror device  200  is viewed from the driver&#39;s seat, an image of a rear part of another vehicle MA is visually recognized. By contrast, as described above, the visual field ST 3  does not include a bicycle B running in the left rear of the vehicle M 2 . Accordingly, when the reflection surface  111   a  of the vehicle mirror device  200  is viewed from the driver&#39;s seat, an image of the bicycle B reflected in the body of the vehicle M 2  may be visually recognized but the bicycle B cannot be visually recognized directly. 
       FIG. 20  illustrates an example of the case where the engine of the vehicle M 2  stops from the state illustrated in  FIG. 19 . The getting-off signal S 17  is output in response to stoppage of the engine. On the basis of the getting-off signal S 17 , the control unit  140  controls the drive unit  130  such that the main body  110  on the side opposite to the driver&#39;s seat in the right and the left sides of the vehicle M 2 , that is, on the passenger seat side, rotates toward the outside of the vehicle M 2  (stop/release rotation mode). In the stop/release rotation mode, the control unit  140  controls the drive unit  130  such that the rotational speed is set to seventh speed V 7 . With this control, as illustrated in the left drawing in  FIG. 20 , the main body  110  is disposed in the stop/release position P 7  acquired by rotating the main body  110  leftward by a predetermined rotation amount from the extended position P 2 . In this manner, a visual field ST 3   a  when the fellow passenger of the vehicle M 2  looks at the vehicle mirror device  200  on the passenger seat side (opposite to the driver&#39;s seat) from the passenger seat shifts to the outside of the vehicle M 2 . With this, a bicycle running along the side or in the rear of the vehicle M 2  can be directly visually recognized by looking at the vehicle mirror device  200  from the passenger seat side. 
     The examples illustrated in  FIG. 19  and  FIG. 20  illustrate the case where the control unit  140  controls the drive unit  130  such that the main body  110  on the passenger seat side rotates toward the outside of the vehicle M 2 , on the basis of the getting-off signal S 17  output when the engine of the vehicle M 2  stops, but the structure is not limited thereto. For example, in the state in which the engine of the vehicle M 2  stops, the control unit  140  may control the drive unit  130  such that the main body  110  on the passenger seat side rotates toward the outside of the vehicle M 2 , on the basis of at least one of the unlock signal, the belt release signal, the parking signal, and the passenger detection signal, and the like, in addition to the engine stop signal or instead of the engine stop signal. 
     When executing the operations illustrated in  FIG. 15  to  FIG. 20 , the control unit  140  controls the drive unit  130  such that each of the fifth speed V 5 , the sixth speed V 6 , and the seventh speed V 7  rotates at rotational speed higher than the first speed V 1  in retracting the main body  110  and the second speed V 2  in extending the main body  110 . With this control, when the direction indicator is operated, the situation in the sideward range of the vehicle M 2  can be promptly checked for the indication direction from the direction indicator. In addition, when the shift lever is switched to the reverse position, the situation in the downward range of the vehicle M 2  can be promptly checked. In addition, when the engine of the vehicle M 2  stops, the fellow passenger on the passenger seat is able to promptly check the situation in the sideward range on the passenger seat side of the vehicle M 2  with the vehicle mirror device  200 . 
     As described above, the vehicle mirror device  200  according to the present embodiment includes the main body  110  including the mirror member  111 , the drive unit  130  rotating the main body  110  around the first rotation axis AX 1  extending along the up-down direction in the vehicle mounted state and the second rotation axis AX 2  extending along the left-right direction in the vehicle mounted state, and the control unit  140  controlling the drive unit  130  such that the main body  110  rotates in the predetermined rotation direction and at the predetermined rotational speed in accordance with a signal that is the signal S 10  from the vehicle and different from the operation signal to operate the main body  110 . 
     This structure enables rotation of the main body  110  at the predetermined rotation direction and the predetermined rotational speed in accordance with the type of the signal S 10  transmitted from the vehicle and different from the operation signal to operate the main body  110 . This structure enables rotation of the main body  110  at the speed in accordance with the situation of the vehicle M 2 . 
     In the vehicle mirror device  200  according to the present embodiment, the predetermined rotational speed is rotational speed higher than the rotational speed in adjusting the rotation position of the main body  110  in the extended state. This structure enables adjustment of the rotation position of the main body  110  in a short time. 
     In the vehicle mirror device  200  according to the present embodiment, the main body  110  is provided on each of the right and the left sides of the vehicle M 2 , the signal from the vehicle M 2  includes the direction indication signal S 15  indicating the indication direction from the direction indicator of the vehicle M 2 , and, when the signal from the vehicle M 2  is the direction indication signal S 15 , the control unit  140  controls the drive unit  130  such that the main body  110  on the side corresponding to the indication direction indicated with the direction indication signal S 15  in the right and the left sides of the vehicle M 2  rotates toward the outside of the vehicle M 2 . This structure enables prompt check of the situation in the sideward range of the vehicle M 2  for the indication direction from the direction indicator. 
     In the vehicle mirror device  200  according to the present embodiment, the signal from the vehicle M 2  includes the shift lever signal S 16  indicating the position of the shift lever of the vehicle M 2 , and, when the signal from the vehicle M 2  is the shift lever signal S 16  and the position indicated with the shift lever signal S 16  is the reverse position, the control unit  140  controls the drive unit  130  such that the main body  110  rotates downward in the vehicle M 2  mounted state. This structure enables prompt check of the situation in the downward range of the vehicle M 2  when the shift lever is switched to the reverse position. 
     In the vehicle mirror device  200  according to the present embodiment, the main body  110  is provided on each of the right and the left sides of the vehicle M 2 , the signal from the vehicle M 2  includes the getting-off signal S 17  output when the passenger on the seat on the side, opposite to the driver&#39;s seat, of the left-right direction in the vehicle M 2  gets off from the vehicle, and, when the signal from the vehicle M 2  is the getting-off signal S 17 , the control unit  140  controls the drive unit  130  such that the main body  110  on the side, opposite to the driver&#39;s seat, of the right and the left sides in the vehicle M 2  rotates toward the outside of the vehicle M 2 . This structure enables the fellow passenger on the passenger seat to promptly check the situation in the sideward range of the vehicle M 2  on the passenger seat side of the vehicle M 2  with the vehicle mirror device  200 , when the engine of the vehicle M 2  stops. 
     The vehicle mirror device  200  according to the present embodiment further includes the storage unit  150  storing therein the rotation position of the main body  110 , and the control unit  140  controls the drive unit  130  on the basis of the rotation position of the main body  110  stored in the storage unit  150 . This structure enables easy control of the rotation position of the main body  110  on the basis of the rotation position stored in the storage unit  150 . 
     The technical range of the present invention is not limited to the embodiments described above, but may be properly changed within a range not departing from the gist of the present invention. For example, the embodiments described above illustrate the cases where the vehicle mirror devices  100  and  200  are door mirrors as an example, but the structure is not limited thereto. The vehicle mirror devices  100  and  200  may be, for example, fender mirrors. 
     In addition, the embodiments described above illustrate the structure in which the whole main body  110  is exposed to the outside as an example, but the structure is not limited thereto. For example, similar effects as those of the structures of the embodiments described above can be acquired also in the case where the control unit controls the drive unit such that the main body or the housing rotates in a predetermined rotation direction and at predetermined rotational speed in accordance with a signal that is a signal from the vehicle and that is different from the operation signal to operate the main body, in the vehicle mirror device provided with the housing surrounding the front and the rear, the right and the left, and the ahead of the main body  110 . 
     REFERENCE SIGNS LIST 
     
         
         
           
             AX 1  FIRST ROTATION AXIS 
             AX 2  SECOND ROTATION AXIS 
             DL, DR DOOR 
             M, M 2  VEHICLE 
             P ROTATION POSITION 
             P 1  RETRACTED POSITION 
             P 2  EXTENDED POSITION 
             P 3 , P 4  ADJUSTMENT POSITION 
             S, S 10  SIGNAL FROM VEHICLE 
             S 1 , S 11  RETRACTION SIGNAL 
             S 2 , S 12  EXTENSION SIGNAL 
             S 3 , S 13  RIGHT-LEFT ADJUSTMENT SIGNAL (ADJUSTMENT SIGNAL) 
             S 4 , S 14  UP-DOWN ADJUSTMENT SIGNAL (ADJUSTMENT SIGNAL) 
             S 15  DIRECTION INDICATION SIGNAL 
             S 16  SHIFT LEVER SIGNAL 
             S 17  GETTING-OFF SIGNAL 
             V 1  FIRST SPEED 
             V 2  SECOND SPEED 
             V 3  THIRD SPEED 
             V 4  FOURTH SPEED 
             θ 1 , θ 2  ROTATION ANGLE 
               10 ,  110  MAIN BODY 
               11 ,  111  MIRROR MEMBER 
               11   a ,  111   a  REFLECTION SURFACE 
               11   b ,  111   b  SURFACE 
               12 ,  112  CASE MEMBER 
               20 ,  120  VEHICLE CONNECTION PART 
               30 ,  130  DRIVE UNIT 
               31 ,  131  FIRST DRIVE UNIT 
               32 ,  132  SECOND DRIVE UNIT 
               40 ,  140  CONTROL UNIT 
               50 ,  150  STORAGE UNIT 
               100 ,  200  VEHICLE MIRROR DEVICE