Abstract:
A device mounting apparatus that allows the orientation of a device to be easily adjusted alone. The device mounting apparatus is mounted with a device. A mount includes a seat fixed to a base, and a rotation mechanism portion that is supported by the seat and can change the orientation of the device relative to the seat. An adjustment jig is attachable to and detachable from the mount and includes a driving unit driven by operation. The rotation mechanism includes a supporting unit that supports the device, a changing unit that changes the orientation of the rotation mechanism according to driving of the adjustment jig when the adjustment jig is mounted to the mount, and brakes that fix the orientation of the rotation mechanism when the adjustment jig is detached from the mount.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a device mounting apparatus to which, for example, a device such as an image pickup apparatus used for monitoring is mounted, an adjustment jig, and an image pickup apparatus with an adjustment mechanism.  
         [0003]     2. Description of the Related Art  
         [0004]     There has been proposed an example of mounting a monitoring camera to a ceiling or a wall and adjusting the orientation of the camera (for example, see Japanese Laid-Open Patent Publication (Kokai) No. H05-191689). In this proposal, a camera mount to which the camera is mounted is fixed to the ceiling or the like, then an image taken by the camera is monitored through a monitor, and the orientation of the camera is adjusted so that the camera can photograph a predetermined area.  
         [0005]     In the conventional example, however, a stepladder or a ladder needs to be used when the orientation of the camera mounted to the ceiling or the like via the camera mount is adjusted, but the monitor cannot be placed on the stepladder or the ladder. This requires two workers of an adjustment operator who adjusts the orientation of the camera and an adjustment indicator who indicates the orientation of the camera to the adjustment operator while watching the monitor. The adjustment indicator who watches the monitor and the adjustment operator who adjusts the orientation of the camera are different, and therefore a communication is mixed up to thereby cause trouble in adjustment. Further, fine adjustment of the orientation of the camera is difficult, and for a camera with a high magnification zoom lens, the orientation of the camera is sometimes slightly displaced to thereby prevent the camera from photographing a place to be photographed.  
       SUMMARY OF THE INVENTION  
       [0006]     It is an object of the present invention to provide a device mounting apparatus, an adjustment jig, and an image pickup apparatus with an adjustment mechanism that allow the orientation of a device to be easily adjusted alone.  
         [0007]     To attain the above object, in a first aspect of the present invention, there is provided a device mounting apparatus to which a device is mounted comprising a mount including a fixed unit fixed to a base, and a movable unit that is supported by the fixed unit and can change the orientation of the device relative to the fixed unit, and an adjustment jig that is attachable to and detachable from the mount and includes a driving unit driven by operation, wherein the movable unit includes a supporting unit that supports the device, a changing unit that changes the orientation of the movable unit according to driving of the adjustment jig when the adjustment jig is mounted to the mount, and a fixing unit that fixes the orientation of the movable unit when the adjustment jig is detached from the mount.  
         [0008]     Preferably, the adjustment jig performs any of first driving and second driving according to remote control, the changing unit includes a first rotation mechanism unit that rotates the supporting unit in a direction substantially parallel to a surface of the base in the first driving when the adjustment jig is mounted to the mount, and a second rotation mechanism unit that rotates the supporting unit in a direction substantially perpendicular to the surface of the base in the second driving when the adjustment jig is mounted to the mount, and the fixing unit includes a rotation preventing unit that prevents rotation of the supporting unit caused by the first rotation mechanism unit and the second rotation mechanism unit when the adjustment jig is not mounted to the mount.  
         [0009]     Also preferably, the device is mounted to the mount by the supporting unit in a manner selected from the group consisting of a manner in which the device is integrated into the mount, and a manner in which the device is separatable from the mount.  
         [0010]     Preferably, the device is selected from the group consisting of an image pickup apparatus and an illumination apparatus.  
         [0011]     To attain the above object, in a second aspect of the present invention, there is provided an adjustment jig attachable to and detachable from a mount included in a device mounting apparatus to which a device is mounted, the adjustment jig comprising a fixed unit fixed to a base, a movable unit that is supported by the fixed unit and can change the orientation of the device relative to the fixed unit, a driving unit driven by operation, and a changing unit that changes the orientation of the movable unit according to driving of the driving unit when the adjustment jig is mounted to the mount.  
         [0012]     Preferably, the driving unit performs any of first driving and second driving according to remote control, and the changing unit includes a first rotation mechanism unit that rotates the movable unit in a direction substantially parallel to a surface of the base in the first driving when the adjustment jig is mounted to the mount, and a second rotation mechanism unit that rotates the movable unit in a direction substantially perpendicular to the surface of the base in the second driving when the adjustment jig is mounted to the mount.  
         [0013]     Also preferably, the adjustment jig further comprises a communication unit that receives the contents of remote control, and a releasing unit that releases the adjustment jig from the mount according to the remote control.  
         [0014]     To attain the above object, in a third aspect of the present invention, there is provided an image pickup apparatus with an adjustment mechanism comprising a mount including a fixed unit fixed to a base, and a movable unit that is supported by the fixed unit and of which orientation can be changed relative to the fixed unit, and an adjustment jig that is attachable to and detachable from the mount and includes a driving unit driven by operation, wherein the movable unit includes a supporting unit that supports a device, a changing unit that changes the orientation of the movable unit according to driving of the adjustment jig when the adjustment jig is mounted to the mount, and a fixing unit that fixes the orientation of the movable unit when the adjustment jig is detached from the mount.  
         [0015]     The above and other objects, features, and advantages of the invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0016]      FIG. 1A  is a front view of configurations of a mount as a device mounting apparatus, a camera unit as an image pickup apparatus with an adjustment mechanism, and an adjustment jig according to a first embodiment of the present invention;  
         [0017]      FIG. 1B  is a perspective view of the mount, the camera unit, and the adjustment jig in  FIG. 1A  as viewed from the lower left;  
         [0018]      FIG. 2A  is a perspective view of the inside of the adjustment jig with a cover being removed, as viewed from the lower left;  
         [0019]      FIG. 2B  is a perspective view of the inside of the adjustment jig with the cover being removed, as viewed from the upper right;  
         [0020]      FIG. 3A  is a partially enlarged perspective view of related portions including pawls of the adjustment jig;  
         [0021]      FIG. 3B  is a perspective view of the pawls being opened;  
         [0022]      FIG. 4  is a perspective view of the mount with an upper cover and a side cover being removed, as viewed from the lower left;  
         [0023]      FIG. 5  is a perspective view of the mount with the upper cover and the side cover being removed, as viewed from the upper right;  
         [0024]      FIG. 6A  is a front view of the mount with the upper cover and the side cover being removed;  
         [0025]      FIG. 6B  is a sectional view taken along line A-A in  FIG. 6A ;  
         [0026]      FIG. 6C  is a plan view of a gear portion in a state where the upper cover and the side cover of the mount being removed, as viewed from the bottom;  
         [0027]      FIG. 7A  is a front view of the mount, the camera unit, and the adjustment jig in a state where the adjustment jig is mounted to the mount with covers being removed;  
         [0028]      FIG. 7B  is a partial plan view of the mount, the camera unit, and the adjustment jig in the state in  FIG. 7A  as viewed from the bottom;  
         [0029]      FIG. 8A  is a perspective view of a mount as a device mounting apparatus, a camera unit as an image pickup apparatus with an adjustment mechanism, and an adjustment jig according to a second embodiment of the present invention, as viewed from the lower left; and  
         [0030]      FIG. 8B  is a side view of the mount, the camera unit, and the adjustment jig as viewed from the left. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0031]     The present invention will now be described in detail with reference to the drawings showing preferred embodiments thereof. It should be noted that the relative arrangement of the components, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.  
         [0032]     Now, embodiments of the present invention will be described with reference to the drawings.  
         [0033]     First, a description will be given of a first embodiment of the present invention.  
         [0034]      FIG. 1A  is a front view of configurations of a mount  1  as a device mounting apparatus, a camera unit  8  as an image pickup apparatus with an adjustment mechanism, and an adjustment jig  2  according to the first embodiment of the present invention, and  FIG. 1B  is a perspective view of the mount  1 , the camera unit  8 , and the adjustment jig  2  in  FIG. 1A  as viewed from the lower left.  
         [0035]     First, outlines of the mount  1 , the adjustment jig  2 , and the camera unit  8  will be described.  
         [0036]     In  FIG. 1A , the camera unit  8  is integrated into the mount  1 , and the mount  1  includes an upper cover  3 , a side cover  4 , a seat  6 , a chassis  26 , or the like. The seat  6  is, for example, a disk-shaped member that constitutes a fixing portion of the mount  1 , and fixed to a base such as a ceiling or a wall by, for example, four screws  7 . The chassis  26  includes a flat plate portion disposed under the seat  6  in parallel with the seat  6  and two vertical plate portions perpendicular to the seat  6 , and is rotatable via a shaft  27  described later in  FIG. 4 . On a vertical plate portion of the chassis  26  on the side to which the adjustment jig is attached, a pair of pawls  12  and a pair of pawls  13  (see  FIG. 4 ) are disposed on longitudinally opposite sides thereof.  
         [0037]     The upper cover  3  is disposed under the seat  6  and mounted to the chassis  26 , and covers part of a horizontal rotation mechanism portion (a mechanism including a bevel gear  25 , the chassis  26 , and the shaft  27  in  FIG. 4 ). The side cover  4  is disposed on a lateral side of the upper cover  3 , and mounted to the chassis  26 , and covers part of a vertical rotation mechanism portion (a mechanism including a gear  36 , a gear  39 , a shaft  40 , and a shaft  45  in  FIG. 4 ) and part of a horizontal rotation mechanism portion (a mechanism including a bevel gear  30  in  FIG. 4 ). In the side cover  4 , for example, six holes  4   a ,  4   b ,  4   c ,  4   d ,  4   e  and  4   f  (see  FIG. 1B ) are formed.  
         [0038]     The camera unit  8  is integrated into the mount  1 , installed on the base such as the sealing or the wall via the seat  6  of the mount  1 , photographs a predetermined space area such as an area to be monitored, and includes a lens and a camera portion (not shown). Electric power is supplied from a battery to the camera unit  8  via an unshown power supply cable or an Ethernet (registered trademark) cable, and the camera unit  8  is connected to a network. An image photographed by the camera unit  8  is transmitted to a predetermined place (for example, a monitor room) via the network.  
         [0039]     The adjustment jig  2  is configured to be attachable to and detachable from the mount  1  and to be driven by remote control mounted to the mount  1  in adjusting the orientation of the camera unit  8 , and covered with a cover  5 . The adjustment jig  2  can adjust the orientation of the camera unit  8  in two directions of a direction substantially parallel to a surface of the base such as the ceiling or the wall to which the seat  6  of the mount  1  is fixed and a direction substantially perpendicular to the surface of the base.  
         [0040]     On one surface of a base plate  15  described later of the adjustment jig  2 , a pair of pawls  10  and a pair of pawls  11  are disposed in a protruding manner in a mounting direction (see  FIG. 2A  and  FIG. 2B ). The pawls  10  and the pawls  11  of the adjustment jig  2  are configured to engage the pawls  12  and the pawls  13  of the mount  1 , respectively, when the adjustment jig  2  is mounted to the mount  1 . Thus, the adjustment jig  2  is fixed to the mount  1 .  
         [0041]     Next, a specific configuration of the adjustment jig  2  will be described.  
         [0042]      FIG. 2A  is a perspective view of the inside of the adjustment jig  2  with the cover  5  being removed, as viewed from the lower left, and  FIG. 2B  is a perspective view of the inside of the adjustment jig  2  with the cover  5  being removed, as viewed from the upper right.  
         [0043]     In  FIG. 2A  and  FIG. 2B , the adjustment jig  2  includes an electric unit  14 , the base plate  15 , a pan motor  16 , and a tilt motor  17 . On the one surface of the base plate  15  (the surface to be mounted to the mount  1 ), the pair of pawls  10 , the pair of pawls  11 , a shaft  15   a , a shaft  15   b , a shaft  15   c , a shaft  15   d , a hexagonal shaft  16   b , and a hexagonal shaft  17   b  are disposed. On the other surface of the base plate  15 , the electric unit  14 , the pan motor  16 , and the tilt motor  17  are fixed.  
         [0044]     The electric unit  14  incorporates an unshown battery, a motor driver, a radio transmitting and receiving portion (communication means), a controller portion, or the like. The battery supplies electric power for driving the pan motor  16  and the tilt motor  17 . The motor driver drives the pan motor  16  and the tilt motor  17 . The radio transmitting and receiving portion transmits and receives radio signals to and from, for example, a monitor room when an adjustment operator in the monitor room drives the pan motor  16  and the tilt motor  17  from a distance by remote control. The controller portion collectively controls the battery, the motor driver, and the radio transmitting and receiving portion.  
         [0045]     The pan motor  16  is driven by the motor driver under the control of the controller portion of the electric unit  14  when the orientation of the camera unit  8  is adjusted by the adjustment jig  2  mounted to the mount  1 , to rotate the camera unit  8  in a horizontal direction substantially parallel to the surface of the seat  6  (when the seat  6  is fixed to the ceiling, see  FIG. 1B ). The tilt motor  17  is driven by the motor driver under the control of the controller portion of the electric unit  14  when the orientation of the camera unit  8  is adjusted by the adjustment jig  2  mounted to the mount  1 , to rotate the camera unit  8  in a vertical direction substantially perpendicular to the surface of the seat  6  (when the seat  6  is fixed to the ceiling, see  FIG. 1B ).  
         [0046]     The pan motor  16  and the tilt motor  17  are configured as geared motors, and integrally provided with gear heads, for example, with a gear ratio of 30:1 at tips thereof. The hexagonal shaft  16 b is press fitted to an output shaft  16 a of the gear head of the pan motor  16 . Similarly, the hexagonal shaft  17   b  is press fitted to an output shaft  17   c  of the gear head of the tilt motor  17 .  
         [0047]     When the seat  6  is fixed to the wall, the pan motor  16  rotates the camera unit  8  in the direction substantially parallel to the surface of the seat  6  (a vertical direction substantially parallel to the wall), and the tilt motor  17  rotates the camera unit  8  in the direction substantially perpendicular to the surface of the seat  6  (a horizontal direction substantially perpendicular to the wall).  
         [0048]      FIG. 3A  is a partially enlarged perspective view of related portions including the pawls  10  of the adjustment jig  2 , and  FIG. 3B  is a perspective view of the pawls  10  being opened.  
         [0049]     In  FIG. 3A  and  FIG. 3B , the adjustment jig  2  includes a solenoid  18 , a joint  19 , a pair of rods  21 , a pair of torsion springs  23 , and a pair of bearings  24 . The solenoid  18  is fixed to the base plate  15 . The joint  19  is mounted to a tip of the solenoid  18 , and moved vertically in  FIG. 3A  and  FIG. 3B  according to driving of the solenoid  18 . A shaft  20  is press fitted into the joint  19 .  
         [0050]     Each of the pair of pawls  10  disposed on laterally opposite sides of the base plate  15  is integrally provided with a shaft  10   a  and a shaft  10   b . The shaft  10   a  is rotatably inserted into the bearing  24  fixed to the base plate  15 . One end of each rod  21  is rotatably inserted into the shaft  20 . The other end of each rod  21  is rotatably coupled to the shaft  10   b . The torsion spring  23  is inserted into the shaft  10   a . The torsion spring  23  urges the pair of pawls  10  inward (so that the pawls  10  face each other) around the shaft  10   a  (see  FIG. 3A ).  
         [0051]     When the pair of pawls  10  is opened outward (so that the pawls  10  are away from each other) (see  FIG. 3B ), the above described mechanism causes the joint  19  to be moved upward in the drawing as in driving the solenoid  18 . If the solenoid  18  is driven by remote control, the pawls  10  are also opened outward. Specifically, the adjustment jig  2  mounted to the mount  1  can be detached from the mount  1  by both a manual method and a remote control method. The pawls  10  and the pawls  11  have the same structure, and thus illustrations and descriptions of configurations around the pawl  11  are omitted.  
         [0052]     Next, a specific configuration of the mount  1  will be described.  
         [0053]      FIG. 4  is a perspective view of the mount  1  with the upper cover  3  and the side cover  4  being removed, as viewed from the lower left.  FIG. 5  is a perspective view of the mount  1  with the upper cover  3  and the side cover  4  being removed, as viewed from the upper right.  FIG. 6A  is a front view of the mount  1  with the upper cover  3  and the side cover  4  being removed,  FIG. 6B  is a sectional view taken along line A-A in  FIG. 6A , and  FIG. 6C  is a plan view of a gear portion in a state where the upper cover  3  and the side cover  4  of the mount  1  being removed, as viewed from the bottom.  
         [0054]     In  FIG. 4A  to  FIG. 6C , the mount  1  includes the above described pawls  12  and  13 , the bevel gear  25 , a bevel gear  30 , a pan brake  32 , the gear  36 , the gear  39 , and a tilt brake  42 . The bevel gear  25  is fixed to the seat  6 . The shaft  27  is rotatably inserted into the bevel gear  25 , and fixed to the flat plate portion of the chassis  26 . An E-ring  28  (see  FIG. 5 ) is press fitted to the shaft  27 . The E-ring  28  regulates movement of the shaft  27  in a thrust direction. The bevel gear  30  meshes with the bevel gear  25 .  
         [0055]     The bevel gear  30  is integrally provided with the shaft  30   a . The shaft  30   a  is rotatably inserted into a bearing  29  fixed to the chassis  26 , and configured as a stepped shaft having a stepped portion  30   c , and an E-ring  31  (see  FIG. 6B ) is press fitted to the shaft  30   a . The stepped portion  30   c  and the E-ring  31  regulate movement of the shaft  30   a  in a thrust direction. A hexagonal hole  31   b  is formed in the shaft  30   a  (see  FIG. 4 ). When the adjustment jig  2  is mounted to the mount  1 , the hexagonal shaft  16   b  press fitted to the output shaft  16   a  of the pan motor  16  mounted to the adjustment jig  2  is fitted into the hexagonal hole  31   b.    
         [0056]     The pan brake  32  regulates horizontal rotation of the mount  1 . The pan brake  32  is integrally provided with shafts  32   a  at opposite ends thereof, respectively (see  FIG. 6B ). A spring  33  is inserted into each shaft  32   a , and each shaft  32   a  is integrally provided with a stopper  32   b . Each shaft  32   a  is inserted into a bearing  34  and a bearing  35  fixed to the chassis  26 . Each spring  33  is compressed between the stopper  32   b  and the bearing  34 , and thus the pan brake  32  is pressed against a boss  25   a  of the bevel gear  25 . Thus, in this state, the chassis  26  cannot be rotated relative to the bevel gear  25 .  
         [0057]     The gear  36  is integrally provided with a shaft  36   b , and the shaft  36   b  is rotatably inserted into a bearing  37  fixed to the chassis  26 . The shaft  36   b  is configured as a stepped shaft having a stepped portion  36   c  (see  FIG. 6A ), and an E-ring  38  is press fitted to the shaft  36   b . Movement of the gear  36  in a thrust direction is regulated between the E-ring  38  press fitted to the shaft  36   b  and the stepped portion  36   c  of the shaft  36   b . A hexagonal hole  36   a  is formed in the center portion of the gear  36  (see  FIG. 4 ). When the adjustment jig  2  is mounted to the mount  1 , the hexagonal shaft  17   b  press fitted to the output shaft  17   c  of the tilt motor  17  mounted to the adjustment jig  2  is fitted into the hexagonal hole  36   a.    
         [0058]     The gear  39  meshes with the gear  36 . The gear  39  is press fitted to a shaft  40  integrally provided on the camera unit  8 , and the shaft  40  is rotatably inserted into a bearing  41  fixed to the chassis  26  (see  FIG. 6C ). The camera unit  8  is provided with a shaft  45  coaxially with the shaft  40  (see  FIG. 5 ). The tilt brake  42  is inserted into the shaft  40 . The tilt brake  42  is guided by a U-shaped guide portion  44  provided integrally with the pawl  12 , and slid along the shaft  40 . Further, a spring  43  is inserted into the shaft  40 , and thus the tilt brake  42  is pressed against the gear  39 . Thus, in this state, the gear  39  cannot be rotated.  
         [0059]     Next, the case will be described where the adjustment jig  2  is mounted to the mount  1 , and the orientation of the camera unit  8  is adjusted.  
         [0060]      FIG. 7A  is a front view of the mount  1 , the camera unit  8 , and the adjustment jig  2  in a state where the adjustment jig  2  is mounted to the mount  1  with covers being removed, and  FIG. 7B  is a partial plan view of the mount  1 , the camera unit  8 , and the adjustment jig  2  in the state in  FIG. 7A  as viewed from the bottom.  
         [0061]     In  FIG. 7A  and  FIG. 7B , when the adjustment jig  2  is made to face to the mount  1  as shown in  FIG. 1A  and  FIG. 1B  and then is mounted to the mount  1 , the pawls  10  and  10  of the adjustment jig  2  engage the pawls  12  and  12  of the mount  1 , and the pawls  11  and  11  of the adjustment jig  2  engage the pawls  13  and  13  of the mount  1 . At this time, the shafts  15   a ,  15   b ,  15   c  and  15   d  on the base plate  15  are fitted into the holes  4   a ,  4   b ,  4   c  and  4   d  in the side cover  4  of the mount  1 , respectively. Similarly, the hexagonal shaft  17   b  pressed fitted to the output shaft  17   c  of the tilt motor  17  on the base plate  15  and the hexagonal shaft  16   b  press fitted to the output shaft  16   a  of the pan motor  16  on the base plate  15  are fitted into the holes  4   e  and  4   f , respectively, in the side cover  4  of the mount  1 .  
         [0062]     Each of the shafts  15   a  and  15   b  presses down a portion around the guide portion  44  of the tilt brake  42  against the spring  43  (see  FIG. 7B ) to thereby separate the tilt brake  42  from the gear  39 . Similarly, each of the shafts  15   c  and  15   d  presses down the shaft  32   a  integrally provided on the pan brake  32  against the spring  33  to thereby separate the pan brake  32  from the boss  25   a  of the bevel gear  25 . On the other hand, the hexagonal shaft  16   b  is fitted into the hexagonal hole  31   b  in the shaft  30   a , and the hexagonal shaft  17   b  is fitted into the hexagonal hole  36   a  in the gear  36 .  
         [0063]     As described above, the adjustment jig  2  is mounted to the mount  1  to thereby separate the tilt brake  42  from the gear  39 , and to thereby separate the pan brake  32  from the boss  25   a . This makes the chassis  26  and the gear  39  rotatable. Further, the hexagonal shaft  16   b  is fitted into the hexagonal hole  31   b , and the hexagonal shaft  17   b  is fitted into the hexagonal hole  36   a.    
         [0064]     Thus, when the pan motor  16  is rotated under the control of the controller portion of the electric unit  14  by remote control in this state, the bevel gear  30  is rotated via the shaft  30   a  to which the hexagonal shaft  16   b  coupled to the pan motor  16  is fitted. The bevel gear  25  that meshes with the bevel gear  30  is fixed to the seat  6  and thus not rotated. Thus, the chassis  26  that supports the camera unit  8  is rotated around the shaft  27  rotatably inserted into the bevel gear  25  (horizontally rotated when the seat  6  is fixed to the ceiling).  
         [0065]     Similarly to the above operation, when the tilt motor  17  is rotated, the gear  36  to which the hexagonal shaft  17   b  coupled to the tilt motor  17  is fitted is rotated, and the gear  39  that meshes with the gear  36  and is press fitted to the shaft  40  of the camera unit  8  is also rotated. Thus, the camera unit  8  is rotated around the shaft  40  and the shaft  45  (vertically rotated when the seat  6  is fixed to the ceiling).  
         [0066]     When the adjustment jig  2  is mounted to the mount  1 , the orientation of the camera unit  8  is adjusted by the adjustment jig  2 , and then the adjustment jig  2  is detached from the mount  1 , the pan brake  32  is pressed against the boss  25   a  of the bevel gear  25 , and the tilt brake  42  is pressed against the gear  39  again. Thus, the orientation of the chassis  26  of the mount  1  is fixed, whereby the orientation of the camera unit  8  is fixed.  
         [0067]     According to the present embodiment, the radio transmitting and receiving portion is mounted to the electric unit  14  of the adjustment jig  2 , and thus the pan motor  16  and the tilt motor  17  can be driven from a distance by remote control. Thus, the adjustment operator can easily adjust the orientation of the camera unit  8  mounted to the ceiling or the like via the mount  1  from a distance, while watching a monitor or the like in a place distant from the camera unit  8 .  
         [0068]     When the orientation of the camera unit  8  is adjusted by the adjustment jig  2 , and then the adjustment jig  2  is detached from the mount  1 , the pawls  10  and the pawls  11  disposed in pairs on laterally opposite sides of the base plate  15  of the adjustment jig  2  are opened outward (see  FIG. 3B ). The adjustment jig  2  is urged by the spring  33  and the spring  43 , and thus the adjustment jig  2  is released and detached from the mount  1 . The pawls  10  and the pawls  11  are interlocked with the solenoid  18 , and thus the solenoid  18  is driven to thereby enable the adjustment jig  2  to be detached from the mount  1  from a distance.  
         [0069]     The mount  1  is configured such that, even when the pan brake  32  is not pressed against the boss  25   a  of the bevel gear  25  and the tilt brake  42  is not pressed against the gear  39 , a slight friction is applied thereto. Therefore, the camera unit  8  is not vertically or horizontally rotated under the self weight of the camera unit  8  or the like.  
         [0070]     As described above, according to the present embodiment, the adjustment jig  2  is mounted to the mount  1  into which the camera unit  8  is integrated, and the orientation of the camera unit  8  is adjusted by the adjustment jig  2  by remote control, and thus the adjustment can be performed alone. Further, fine adjustment of the orientation of the camera unit  8  can be easily performed by the adjustment jig  2  by remote control, and thus the adjustment can be performed extremely easily. Furthermore, a space area to be photographed can be properly photographed.  
         [0071]     Next, a description will be given of a second embodiment of the present invention.  
         [0072]     A second embodiment of the present invention is different from the first embodiment in the following points. Other elements in this embodiment are the same as those in the first embodiment, and descriptions thereof will be omitted.  
         [0073]     In the first embodiment, the configuration has been described in which the camera unit  8  is integrated into the mount  1 , and the mount  1  and the camera unit  8  cannot be easily separated from each other. On the other hand, in this embodiment, a configuration will be described in which the camera unit  8  is configured to be attachable to and detachable from a mounting plate described later rather than fixed to the chassis  26  so that the mount  1  and the camera unit  8  can be separated from each other.  
         [0074]      FIG. 8A  is a perspective view of the mount  1  as a device mounting apparatus, the camera unit  8  as an image pickup apparatus with an adjustment mechanism, and the adjustment jig  2  according to the second embodiment of the present invention, as viewed from the lower left, and  FIG. 8B  is a side view of the mount  1 , the camera unit  8 , and the adjustment jig  2  as viewed from the left.  
         [0075]     In  FIG. 8A  and  FIG. 8B , the mount  1  includes the upper cover  3 , the side cover  4 , the seat  6 , and a mounting plate  52 . The mounting plate  52  is fixed to the shaft  40  shown in  FIG. 4 . Screw holes are formed in four corners of the mounting plate  52 , and screw holes  51  are formed in corresponding four places in a side surface of the camera unit  8 . The camera unit  8  is fixed to the mounting plate  52  by screws  50 . The structures of a horizontal rotation mechanism portion, a vertical rotation mechanism portion of the mount  1 , and the adjustment jig  2  are the same as in the first embodiment, and descriptions thereof will be omitted.  
         [0076]     As described above, according to the present embodiment, the adjustment jig  2  is mounted to the mount  1  to which the camera unit  8  is separatably mounted, and the orientation of the camera unit  8  is adjusted by the adjustment jig  2  by remote control, and thus the adjustment can be performed alone. Also, fine adjustment of the orientation of the camera unit  8  can be easily performed by the adjustment jig  2  by remote control, and thus the adjustment can be performed extremely easily. Further, a space area to be photographed can be properly photographed. Furthermore, the mount  1  and the camera unit  8  are separatable from each other via the mounting plate  52 , and this enables the mount  1  to be adaptable to a plurality of kinds of camera units.  
         [0077]     Although, in the first embodiment, the shaft  40  that supports the chassis  26  is rotated via the gear  36  for vertical rotation of the camera unit  8 , the shaft  40  may be directly rotated by the adjustment jig  2 . Similarly, although the shaft  27  rotatably inserted into the bevel gear  25  and fixed to the chassis  26  is rotated via the bevel gear  30  for horizontal rotation of the camera unit  8 , the shaft  27  may be directly rotated by the adjustment jig  2 . Reducing the number of gear portions in this way can reduce the number of components of the mount  1  and costs.  
         [0078]     Although, in the first embodiment, the adjustment jig s is taken as an example that can adjust the orientation of the camera unit  8  in two directions of the direction substantially parallel to the surface of the base such as the ceiling or the wall to which the seat  6  is fixed and the direction substantially perpendicular to the surface of the base, the present invention is not limited to this. The present invention may be applied to an adjustment jig that can adjust the orientation of the camera unit  8  in any one of the direction substantially parallel to the surface of the base and the direction substantially perpendicular to the surface of the base.  
         [0079]     Although, in the first and second embodiments, the case is taken as an example where the camera unit  8  is installed on the ceiling or the wall via the mount  1  and the orientation of the camera unit  8  is adjusted by the adjustment jig  2 , the present invention is not limited to this. The present invention may be applied to the case where, for example, a light (an illumination apparatus) is installed on a ceiling or a wall via the mount  1  and the orientation of the light is adjusted by the adjustment jig  2 .  
         [0080]     This application claims the benefit of Japanese Application No. 2005-214897, filed Jul. 25, 2005, which is hereby incorporated by reference herein in its entirety.