JP2005280434A - In-vehicle display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the visibility of a monitor while making it possible to use a common monitor for an occupant of a rear seat and an occupant of a front seat and reducing restrictions on the position and posture of the occupant in the vehicle interior.
An in-vehicle display device moves a monitor holding member 11 or 12 holding a monitor 2 to move the monitor 2 into a housing 1 and a protrusion protruding outside the housing 1. Move between positions. Further, the monitor 2 moves the monitor 2 between a first position where the monitor display surface 2a is visible by the passenger in the rear seat and a second position where the monitor 2 is visible by the passenger in the front seat. With such a configuration, it is possible to use a common monitor 2 for the rear seat occupant and the front seat occupant, and to ensure good visibility while reducing restrictions on the posture of the occupant. Can do.
[Selection] Figure 5

Description

  The present invention relates to an in-vehicle display device mounted in a vehicle interior of an automobile or the like.

  2. Description of the Related Art Conventionally, in-vehicle display devices that are installed in a vehicle interior of an automobile or the like have been widely used. In general, such an in-vehicle display device is attached to the center of the ceiling of the passenger compartment located between the front seat and the rear seat so that the monitor display surface can be visually recognized by the passenger in the rear seat. (For example, see Patent Document 1).

Japanese Patent Laid-Open No. 11-342798 (page 3-4, FIG. 1-2)

  However, the vehicle-mounted display device having the above-described configuration cannot be used by a passenger in the front seat, and there is a problem that the vehicle-mounted display device cannot be effectively used particularly when there is no passenger in the rear seat.

  In addition, since the position and angle of the monitor are substantially fixed, the occupant must adjust the seating position and posture so that the monitor display surface can be viewed well, and the seating position and the like are restricted. There is.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to make it possible to use a common monitor for the occupant of the rear seat and the occupant of the front seat, and the visibility of the monitor. It is to reduce the restrictions such as the seating position of the occupant.

  An in-vehicle display device according to the present invention includes a monitor having a display surface, a housing that houses the monitor, a retracted position in which the monitor is retracted into the housing, and a protruding position that protrudes outside the housing. A projecting / retracting mechanism for moving the monitor between the first position where the display surface is visible by a passenger in the rear seat, and the display surface of the front seat when the monitor is in the projecting position. And a moving mechanism for moving between a second position that can be visually recognized by an occupant.

  According to the present invention, the moving mechanism causes the monitor to move between a first position whose display surface is visible to the passenger in the rear seat and a second position that is visible to the passenger in the front seat. Therefore, the common monitor can be used by the rear seat passenger and the front seat passenger. Thereby, even when there is no passenger in the rear seat, the display device can be used effectively. Further, by adjusting the direction of the display surface by the moving mechanism, it is possible to ensure good visibility of the monitor while reducing restrictions on the seating position and posture of the occupant.

Embodiment 1 FIG.
FIG. 1 is a top view showing the arrangement of the in-vehicle display device according to Embodiment 1 in the vehicle interior. 2 and 3 are perspective views of the in-vehicle display device as viewed from the lower rear side and the upper rear side of the vehicle, respectively. FIG. 4 is a top view of the in-vehicle display device. 5 and 6 are an enlarged perspective view and a top view of the mechanical part of the in-vehicle display device. FIG. 7 is a rear view of the in-vehicle display device viewed from the vehicle rear side. FIG. 8 is an enlarged side view showing the monitor turning mechanism.

  As shown in FIG. 1, the housing 1 of the in-vehicle display device is provided between the front seats 8 a and 8 b and the rear seat 9 in the passenger compartment 100 and the passengers 6 a and 6 b of the front seats 8 a and 8 b. And in the position enclosed by passenger | crew 7a, 7b of the rear seat 9, it is attached to the ceiling (not shown) of the vehicle interior 100. In FIG. 1, the direction toward the front of the vehicle is defined as + Y direction, and the direction toward the rear of the vehicle is defined as -Y direction. Further, the horizontal direction orthogonal to the vehicle front-rear direction (Y direction) is defined as the X direction. The vertical direction is the Z direction.

  As shown in FIGS. 2 and 3, the housing 1 for housing the monitor 2 has a substantially box-shaped cover portion 1 a. Attachment portions 1h and 1g extending in the X direction are formed at ends of the cover portion 1a in the + Y direction and the −Y direction. The attachment portions 1h and 1g have attachment holes 1l, 1m, and 1n (FIG. 3) and attachment holes 1i, 1j, and 1k, respectively, and are fixed to the vehicle compartment ceiling by screws (not shown) that pass through these attachment holes. ing.

  An opening 1q for projecting the monitor 2 out of the housing 1 is formed in the bottom plate 1p of the housing 1. A base plate 52 (FIG. 3) is placed on the upper surface of the bottom plate 1 p of the housing 1, and a monitor holding unit 10 that holds the monitor 2 is attached to the base plate 52. The monitor holding unit 10 includes monitor holding members 11 and 12 that support the monitor 2 from both sides in the X direction.

  As shown in FIGS. 4 to 6, rotation support shafts 31 and 32 having the X direction as an axial direction are coaxially attached to the monitor holding members 11 and 12. The pivot shafts 31 and 32 are engaged with bearing portions 65a and 66a (FIGS. 4 and 6) of brackets 65 and 66 provided on the base plate 52, whereby the monitor holding members 11 and 12 are The rotary shafts 31 and 32 are supported so as to be rotatable.

  As shown in FIG. 6, gears 33 and 34 are fixed to the rotation support shafts 31 and 32 by press-fitting, respectively. On the base plate 52, slide plates 35 and 36 are provided on both sides in the X direction of the opening 1q. The slide plates 35 and 36 are respectively provided with guide grooves 35a and 35b and guide grooves 36a and 36b that are long in the Y direction. The base plate 52 on the bottom plate 1p is formed with guide pins 37a, 37b, 37c, 37d that engage with the guide grooves 35a, 35b, 36a, 36b, so that the slide plates 35, 36 can move in the Y direction. It is supported by.

  Rack members 38 and 39 are fixed to the slide plates 35 and 36, respectively, and the rack teeth of the rack members 38 and 39 are engaged with the teeth of the gears 33 and 34 described above. The brackets 65 and 66 described above are provided with bearing portions 65b and 66b, and the shafts 40 whose axial direction is the X direction are rotatably supported by the bearing portions 65b and 66b. Gears 41 and 42 are fixed to both ends in the axial direction of the shaft 40 by press-fitting. The gears 41 and 42 are disposed so as to engage with the rack teeth of the rack members 38 and 39. By the gears 41 and 42, the rotation of the shaft 40 is transmitted to the rack members 38 and 39, and the slide plates 35 and 36 slide in the Y direction.

  As shown in FIG. 6, the first gear 43 is fixed to the shaft 40 by press fitting. The drive member mounting plate 48 mounted on the base plate 52 is provided with a second gear 44 that engages with the first gear 43 and a third gear 45 that engages with the second gear 44. These gears 44 and 45 are rotatably supported on the drive member mounting plate 48 via gear pins 49a and 49b. On the drive member mounting plate 48, a motor 47 as power generation means is mounted. A motor gear 46 is fixed to the output shaft of the motor 47 by press fitting, and the motor gear 46 is engaged with the third gear 45 described above. The gears 43, 44, 45, and 46 constitute a power transmission mechanism that transmits the power generated by the motor 47 to the shaft 40 while decelerating the power. The motor 47, the shaft 40, the rack members 38 and 39, the slide plates 35 and 36, and the gears 41 to 46 constitute a projecting / retracting mechanism 30 that moves the monitor holding members 11 and 12.

  Switches 50 and 51 are attached to the drive member attachment plate 48 at a predetermined interval in the Y direction. The above-described slide plate 36 is formed with a switch contact portion 36c that can contact the switches 50 and 51. When the slide plate 36 is at the movement limit position in the + Y direction, the switch contact portion 36c contacts the switch 51, and when the slide plate 36 is at the movement limit position in the -Y direction, the switch contact portion 36c is connected to the switch 50. Abut.

  As shown in FIG. 7, rotation support shafts 13 and 14 having the X direction as an axial direction are attached to the side surface portions 2 c and 2 d of the monitor 2 coaxially. The rotation support shafts 13 and 14 are engaged with bearing portions 11a and 12a provided on the monitor holding members 11 and 12 (the monitor holding portion 10 described above). Thereby, the monitor 2 is supported by the monitor holding members 11 and 12 so as to be rotatable around the rotation support shafts 13 and 14. A first gear 21 is fixed to the rotating support shaft 14 by press-fitting.

  As shown in FIG. 8, a second gear 22 that engages with the first gear 21 and a third gear 23 that engages with the second gear 22 are attached to the monitor holding member 12. These gears 22 and 23 are rotatably supported by the monitor holding member 12 via gear pins 27 and 28. Further, a motor 25 as power generation means is attached to the monitor holding member 12 via a motor attachment member 26. A motor gear 24 is fixed to the output shaft of the motor 25 by press-fitting. The motor gear 24 is engaged with the third gear 23 described above. The gears 21, 22, 23, and 24 constitute a power transmission mechanism that transmits the power from the motor 25 while decelerating the power to the support shaft 14 fixed to the side surface of the monitor 2. The gears 21 to 24, the motor 25, and the support shaft 14 constitute a monitor rotation mechanism that rotates the monitor 2 about the support shafts 13 and 14 (X axis) by about 180 degrees.

  As shown in FIGS. 6 and 7, switches 3 and 4 (FIG. 7) project from the side surface of the monitor 2, and the switch pressing plate 5 is attached to the side surface of the monitor holding member 11 facing the switch 3 and 4. It has been. One of the switches 3 and 4 is pressed by the switch pressing plate 5 when the extending direction of the monitor holding members 11 and 12 and the monitor display surface 2a are substantially parallel. Each of the switches 3 and 4 outputs an ON signal to a control unit 70 described later when pressed by the switch pressing plate 5, and outputs an OFF signal when not pressed by the switch pressing plate 5. ing.

  The base plate 52 has arcuate guide grooves 52a, 52b, and 52c provided on the same circumference centering on the point B shown in FIG. Guide pins 53a, 53b, and 53c that are erected on the bottom plate 1p of the housing 1 are engaged with the guide grooves 52a, 52b, and 52c. Thereby, the base plate 52 is supported so as to be rotatable with respect to the bottom plate 1p of the housing 1 around a vertical axis (referred to as Z axis) passing through the point B.

  On the edge of the base plate 52 in the + Y direction, a gear portion 52d centered on the point B described above is formed. In addition, about the tooth | gear of the gear part 52d, illustration is abbreviate | omitted. On the bottom plate 1 p, a first gear 54 that engages with the gear portion 52 d of the base plate 52, a second gear 55 that engages with the first gear 54, and a third gear 56 that engages with the second gear 55. And are provided. The gears 54, 55, and 56 are rotatably supported by gear pins 58a, 58b, and 58c provided upright on the bottom plate 1p, respectively. A motor 62 as power generation means is attached to the bottom plate 1p via a motor holding member 63. A motor gear 57 is fixed to the output shaft of the motor 62 by press fitting, and the motor gear 57 is engaged with the third gear 56 described above. The gears 54, 55, 56, and 57 constitute a power transmission mechanism that transmits the rotation of the motor 62 to the base plate 52 while decelerating. The gears 54 to 57 and the motor 62 constitute a base rotation mechanism that rotates the base plate 52 around the point B.

  As shown in FIG. 6, on the base plate 52, a display circuit 60 for displaying an image (indicated by symbol A in FIG. 2 and the like) on the monitor display surface 2a and a control unit 70 are attached. The control unit 70 performs drive control of each of the motors 25, 47 and 62 described above in addition to drive control of the display circuit 60.

  The operation of the in-vehicle display device configured as described above will be described with reference to FIGS.

  9 and 10 are perspective views of the state in which the monitor 2 is accommodated as viewed from the lower rear side and the upper rear side of the vehicle, respectively. FIG. 11 is a top view showing a state in which the monitor 2 is housed in the housing 1. FIGS. 12 and 13 are a perspective view and a top view, respectively, of the operation of projecting the monitor 2 out of the housing 1 as seen from the upper rear side of the vehicle. 14 and 15 are perspective views showing a state in the middle of the operation of rotating the monitor 2 about 180 degrees with respect to the monitor holding members 11 and 12. FIGS. 16 and 17 are perspective views of the state in which the monitor display surface 2a faces the front of the vehicle (+ Y direction), as viewed from the vehicle rear upper side and the vehicle front lower side (front seat 8a side). 18 and 19 are a top view showing an operation of rotating the base plate 52 around the Z-axis and a perspective view seen from the lower front side of the vehicle (front seat 8a side). FIG. 20 is a top view showing the orientation of the monitor in the passenger compartment.

  As shown in FIGS. 9 to 11, in the monitor housing state in which the monitor 2 is housed in the housing 1, the slide plates 35 and 36 are stopped at the limit positions in the −Y direction of the movement range. The monitor holding members 11 and 12 are accommodated inside the opening 1q of the housing 1 as shown in FIG. 9, and the switch 2 is pressed by the switch pressing plate 5 in the monitor 2 as shown in FIG. Stop at position. In this state, the monitor 2 is housed inside the housing 1 in such a posture that the monitor display surface 2a (FIG. 10) faces upward and the monitor back surface 2b (FIG. 9) faces the outside of the housing 1. . Further, the switch contact portion 36c of the slide plate 36 is in contact with the switch 50 (FIG. 11).

  When the monitor 2 is moved to the protruding position outside the housing 1, the control unit 70 drives the motor 47. As shown in FIGS. 12 and 13, the rotation of the motor 47 is transmitted to the shaft 40 via gears 43 to 46, and the shaft 40 is driven to rotate. When the shaft 40 rotates, the rack members 38 and 39 (FIG. 13) engaged with the gears 41 and 42 fixed to both ends of the shaft 40 move in the + Y direction. When the rack members 38 and 39 move in the + Y direction, the gears 33 and 34 that engage with the rack members 38 and 39 rotate. The gears 33 and 34 are fixed to the rotation support shafts 31 and 32, and the monitor holding members 11 and 12 are fixed to the rotation support shafts 31 and 32. It rotates around the shafts 31 and 32. As a result, the monitor 2 held by the monitor holding members 11 and 12 moves toward the protruding position protruding outside the housing 1.

  When the switch contact portion 36 c of the slide plate 36 contacts the switch 51, the control unit 70 stops driving the motor 47. In this state, the monitor holding members 11 and 12 are in positions where the longitudinal direction substantially coincides with the vertical direction. Thereby, as shown in FIGS. 1 and 2, the monitor 2 has a position (first position) where the monitor display surface 2 a faces the rear of the vehicle (−Y direction) and is visible from the passengers 7 a and 7 b of the rear seat 9. ). As a result, the passengers 7a and 7b of the rear seat 9 of the vehicle can visually recognize the image displayed on the monitor display surface 2a of the monitor 2.

  In this state, when the user selects to direct the monitor display surface 2a diagonally forward (for example, the front seat 8a side) by operating means (not shown), the control unit 70 causes the monitor 2 to move horizontally. The operation of rotating about 180 degrees around and the operation of rotating the base plate 52 around the Z axis are continuously performed.

  That is, the control unit 70 first starts rotating the motor 25. As shown in FIGS. 8 and 14 to 17, the rotation of the motor 25 is transmitted to the rotation support shaft 14 via the gears 21 to 24, and the rotation support shaft 14 rotates. Thereby, the monitor 2 fixed to the rotation support shaft 14 rotates about the axis center of the rotation support shafts 13 and 14 as shown in FIGS. When the monitor 2 rotates about 180 degrees and the switch 4 provided on the side surface of the monitor 2 is pressed by the switch pressing plate 5 of the monitor holding member 11, the control unit 70 stops the rotation of the motor 25. In this state, the display surface 2a of the monitor 2 faces the front of the vehicle (+ Y direction) as shown in FIGS.

  Subsequently, the control unit 70 starts to rotate the motor 62. As shown in FIGS. 18 and 19, the rotation of the motor 62 is transmitted to the gear portion 52 d of the base plate 52 via the gears 54 to 57, and the base plate 52 rotates about the point B with respect to the housing 1. To do. As a result, the monitor 2 supported by the base plate 52 rotates by a predetermined angle about the Z axis. The controller 70 stops the rotation of the motor 62 at a position (second position) where the monitor display surface 2a faces the front seat 8a side obliquely forward and becomes visible from the occupant 6a of the front seat 8a. Thereby, as shown in FIG. 20, the passenger | crew 6a of the front seat 8a of a vehicle interior can visually recognize the image etc. which were displayed on the monitor display surface 2a in the attitude | position which looked a little back.

  Here, when the monitor display surface 2a is facing the rear of the vehicle (−Y direction) and when the monitor display surface 2a is facing obliquely forward (the front seat 8a side), the vertical direction of the monitor 2 is opposite to each other. It is necessary to display the display image upside down. Therefore, the control unit 70 executes a display control sequence shown in FIG.

  As shown in FIG. 21, when the switch 3 is on and the switch 4 is off, that is, when the monitor display surface 2a faces the rear of the vehicle, the control unit 70 causes the monitor display surface 2a to Display. On the other hand, when the switch 3 is off and the switch 4 is on, that is, when the monitor display surface 2a is facing diagonally forward (front seat 8a side), the control unit 70 causes the display circuit 60 to display the monitor display surface 2a. Display the image upside down. When both the switch 3 and the switch 4 are off, the display on the monitor display surface 2a by the display circuit 60 is not performed.

  When the monitor 2 is housed in the housing 1 again, the motor 62 is driven to rotate the base plate 52 so that the monitor display unit 2a faces the + Y direction (see FIGS. 16 and 17), and then the motor 25 And the monitor 2 is rotated about 180 degrees around the horizontal axis so that the monitor display unit 2a faces the -Y direction (see FIG. 14). Further, the motor 47 is driven to move the monitor holding members 11 and 12 into the housing 1 (see FIGS. 10 to 13). Thereby, the monitor 2 is accommodated in the housing 1 with the display surface 2a facing upward.

  In the operation of the in-vehicle display device described above, the rotation angle when the base plate 52 rotates about the Z axis (that is, the amount of rotation of the motor 62), and the monitor 2 rotates about the X axis. The rotation angle at that time (that is, the rotation amount of the motor 25) may be arbitrarily set by the user. In this way, when the visibility of the monitor display surface 2a is not good due to the influence of light from the outside of the vehicle, the orientation of the monitor 2 can be finely adjusted to improve the visibility.

  Further, by making it possible to select a rotation angle when the base plate 52 rotates about the Z axis, a state in which the monitor display surface 2a faces the front seat (driver's seat) 8a and a front seat (assistant) It may be possible to select the seat) facing the 8b side. In this way, when the occupant 6a of the front seat 8a does not use the monitor 2, the occupant 6b of the front seat 8b can also use the monitor 2, and the in-vehicle display device is used more effectively. be able to.

  Moreover, you may make it the control part 70 display the image | video of the vehicle back on the monitor display surface 2a according to a user's operation. In this way, when the driver advances the vehicle backward, the rear display state can be confirmed on the monitor display surface 2a, and the in-vehicle display device is used as a driver support ambient condition monitor. Is possible.

  As described above, according to the present embodiment, when the monitor 2 is in the first position (that is, when the monitor display surface 2a faces the rear of the vehicle), the occupants 7a, 7b can visually recognize the monitor display surface 2a, and when the monitor 2 is in the second position (that is, when the monitor display surface 2a faces obliquely forward), the front seat passenger 6a or the passenger 6b can visually recognize the monitor display surface 2a. Therefore, the common monitor 2 can be effectively used by the front seat occupant and the rear seat occupant.

  Therefore, for example, a display device that has been used only for entertainment for passengers in the rear seat can be used as a driver's assistance ambient condition monitor, and the use of the in-vehicle display device can be expanded. . In addition, it is also advantageous in that the front seat occupant can effectively utilize a display device that has not been used at all when the rear seat 9 has no occupant.

  In addition, since the monitor 2 is rotated about the rotation support shafts 13 and 14 and the base 52 is rotated about the Z axis, the monitor visual characteristics are good according to the positions of the viewers. The monitor 2 can be positioned within the viewing angle range. Thereby, when the visibility is not good due to the influence of external light or the like, it is possible to ensure good visibility by adjusting the direction of the monitor 2.

  Further, since the monitor 2 is rotated about 180 degrees around the rotation support shafts 13 and 14 so that the monitor display surface 2a faces the front of the vehicle, the base 52 is rotated. The angle is relatively small. Therefore, the structure for rotating the base 52 can be relatively simplified.

Embodiment 2. FIG.
22 and 23 are perspective views of the in-vehicle display device according to the second embodiment as viewed from the vehicle rear lower side and the vehicle rear upper side, respectively. 24 and 25 are a rear view and a bottom view showing a mechanism portion of the in-vehicle display device according to the second embodiment. 22 to 25, the same components as those described in the first embodiment are denoted by the same reference numerals.

  As shown in FIGS. 22 and 23, the casing 1 has a circular opening 1r, and a substantially disc-shaped base plate 71 is attached to the inside of the opening 1r. The base plate 71 is supported so as to be rotatable about a substantially center (indicated by reference numeral C) of the base plate 71 by a Z-direction rotation support shaft 72 attached to the housing 1 via a rotation support portion 1s. ing. Guide members 73a, 73b, and 73c that are slidably engaged with the peripheral edge of the opening 1r are attached to the base plate 71. The guide members 73a, 73b, and 73c regulate the displacement in the Z direction while allowing the base plate 71 to rotate.

  As shown in FIG. 24, a monitor holding member 74 that holds the monitor 2 is attached to the lower side of the base plate 71. Unlike the monitor holding members 11 and 12 (FIG. 2 and the like) of the first embodiment, the monitor holding member 74 in the present embodiment is fixed to the edge of the monitor 2 extending in the X direction. Rotating support shafts 31 and 32 having the X direction as an axial direction are coaxially attached to both end surfaces of the monitor holding member 74 in the X direction. The rotation support shafts 31 and 32 are engaged with bearing portions 75a and 76a provided on holding members 75 and 76 attached to the lower surface of the base plate 71 (FIG. 22), whereby the monitor holding member 74 is rotated. The movable support shafts 31 and 32 are supported so as to be rotatable.

  As shown in FIG. 25, gears 33 and 34 are fixed to the rotation support shafts 31 and 32 of the monitor holding member 74 by press-fitting, respectively. Slide plates 35 and 36 are attached to the lower surface of the base plate 71. The slide plates 35 and 36 have guide grooves 35a and 35b and guide grooves 36a and 36b extending in the Y direction, respectively. These guide grooves 35a, 35b, 36a, 36b engage with guide pins 37a, 37b, 37c, 37d erected on the lower surface of the base plate 71, so that the slide plates 35, 36 are supported so as to be movable in the Y direction. Has been.

  Rack members 38 and 39 are fixed to the slide plates 35 and 36, respectively, and these rack members 38 and 39 are engaged with the gears 33 and 34, respectively. End portions 40a and 40b of the shaft 40 are engaged with bearing portions 75b and 76b provided on the holding members 75 and 76, whereby the shaft 40 is rotatably supported by the holding members 75 and 76. Yes. As shown in FIG. 25, gears 41 and 42 are fixed near the both ends of the shaft 40 by press-fitting. The gears 41 and 42 are disposed so as to engage with the rack teeth of the rack members 38 and 39 described above, and the slide plates 35 and 36 are configured to move in the Y direction by the rotation of the shaft 40.

  In FIG. 25, the first gear 43 is fixed to the shaft 40 by press fitting. The drive member mounting plate 48 attached to the lower surface of the base plate 71 is provided with a second gear 44 that engages with the first gear 43 and a third gear 45 that engages with the second gear 44. These gears 44 and 45 are rotatably supported by a base plate 71 via gear pins 49a and 49b. A motor 47 as power generation means is attached to the drive member attachment plate 48. A motor gear 46 is fixed to the output shaft of the motor 47 by press fitting, and the motor gear 46 is engaged with the third gear 45 described above. The gears 43, 44, 45, 46 constitute a power transmission mechanism that transmits the rotation of the motor 47 to the shaft 40 while decelerating. Further, the motor 47, the shaft 40, the rack members 38 and 39, the slide plates 35 and 36, and the gears 41 to 46 constitute a projecting / retracting mechanism that moves the monitor holding member 74.

  The drive member mounting plate 48 is mounted with the switches 50 and 51 described in the first embodiment. The above-described slide plate 36 is formed with a switch contact portion 36c that can contact the switches 50 and 51.

  On the outer peripheral edge of the base plate 71, a gear portion 71a centering on the above-described point C is formed. In addition, about the tooth | gear of the gear part 71a, illustration is abbreviate | omitted. The bottom plate 1p includes a first gear 54 that engages with the gear portion 71a of the base plate 71, a second gear 55 that engages with the first gear 54, and a third gear 56 that engages with the second gear 55. Is provided. The gears 54, 55, and 56 are rotatably supported by gear pins 58a, 58b, and 58c provided upright on the bottom plate 1p, respectively. A motor 62 as power generation means is attached to the bottom plate 1p via a motor holding member 63. A motor gear 57 is fixed to the output shaft of the motor 62 by press fitting, and the motor gear 57 is engaged with the third gear 56 described above. The gears 54, 55, 56, and 57 transmit the rotation of the motor 62 to the base plate 71 while decelerating, and rotate the base plate 71 around the point C. The gears 54 to 57 and the motor 62 constitute a base rotation mechanism that rotates the base plate 71 around the point C.

  In addition, although illustration is abbreviate | omitted, the housing | casing 1 has the cover part 1a (FIG. 2) demonstrated in Embodiment 1. FIG. The cover 1a has the opening 1q (FIG. 2) described in the first embodiment.

  In the first embodiment, since the monitor 2 needs to be turned upside down, the monitor 2 is rotatably supported by the monitor holding members 11 and 12 (FIG. 2). However, in the present embodiment, Since there is no need to turn the monitor 2 upside down, the monitor holding members 11 and 12 (FIG. 2) are not provided.

  The operation of the in-vehicle display device configured as described above will be described with reference to FIGS.

  FIG.26 and FIG.27 is the perspective view and bottom view which looked at the monitor accommodation state of the vehicle-mounted display apparatus from the vehicle back lower side. 28 and 29 are a perspective view and a bottom view showing an operation of moving the monitor 2 from a position where the monitor display surface 2a faces the rear of the vehicle (−Y direction) to a position where the monitor 2 faces diagonally forward (the front seat 8a side). It is. 30 and 31 are a perspective view and a bottom view, as seen from the vehicle rear side, with the monitor display surface 2a facing obliquely forward.

  As shown in FIGS. 26 and 27, when the monitor 2 is in the storage position, the slide plates 35 and 36 are stopped at the end in the −Y direction of the movement range. In this state, the monitor 2 is accommodated inside a cover portion (not shown) of the housing 1. As shown in FIG. 26, the monitor 2 has the monitor display surface 2a facing upward and the back surface 2b facing downward (that is, outside the housing 1). The switch contact portion 36 c of the slide plate 36 is in contact with the switch 50.

  When the monitor 2 is moved to the protruding position outside the housing 1, the control unit 70 drives the motor 47. As shown in FIG. 27, the rotation of the motor 47 is transmitted through the gears 43 to 46, and the shaft 40 rotates. When the shaft 40 rotates, the rack members 38 and 39 engaged with the gears 41 and 42 fixed to both ends of the shaft 40 move in the + Y direction. By the movement of the rack members 38 and 39, the gears 33 and 34 engaged with the rack members 38 and 39 are rotated, and the rotation support shafts 31 and 32 are rotated. As a result, the monitor holding member 74 fixed to the rotation support shafts 31 and 32 rotates about the rotation support shafts 31 and 32, and the monitor 2 held by the monitor holding member 74 projects out of the housing 1. Move toward the protruding position.

  As shown in FIG. 26, when the switch contact portion 36c contacts the switch 51, the control portion 70 stops driving the motor 47. In this state, the monitor display surface 2a is positioned so as to face the rear of the vehicle as shown in FIG. 1, and the passengers 9a and 9b (FIG. 1) of the rear seat 9 visually recognize the image displayed on the monitor display surface 2a. Can do.

  In this state, when the user selects to direct the monitor display surface 2a obliquely forward (front seat 8a side) by operating means (not shown), the control unit 70 causes the base plate 71 to be centered on the Z axis. The operation to rotate is performed.

  That is, as shown in FIGS. 28 and 29, when the controller 70 drives the motor 62, the rotation of the motor 62 is transmitted to the gear portion 71a of the base plate 71 via the gears 54 to 57, and the base plate 71 is It rotates about the point C with respect to the body 1. As a result, the monitor 2 supported by the base plate 71 rotates about the Z axis. The control unit 70 stops driving the motor 62 when the monitor 2 rotates to an angle at which the monitor display surface 2a is visible from the occupant 6a of the front seat 8a. As a result, as shown in FIGS. 30 and 31, the occupant 6a (FIG. 20) of the front seat 8a of the passenger compartment can visually recognize the image displayed on the monitor display surface 2a with a slightly turned back posture. It becomes.

  As in the first embodiment, the rotation angle (that is, the rotation amount of the motor 62) when the base plate 71 rotates around the Z axis may be arbitrarily set by the user. In this way, when the visibility of the monitor display surface 2a is not good due to the influence of light from outside the vehicle, it is possible to improve the visibility by slightly adjusting the orientation of the monitor surface 2a.

  Further, by making it possible to select a rotation angle when the base plate 52 rotates about the Z axis, a state in which the monitor display surface 2a faces the front seat (driver's seat) 8a and a front seat (assistant) It may be possible to select the seat) facing the 8b side. In this way, when the occupant 6a of the front seat 8a does not use the monitor 2, the occupant 6b of the front seat 8b can also use the monitor 2, and the in-vehicle display device is used more effectively. be able to.

  As described above, in the present embodiment, in addition to the effects described in the first embodiment, the monitor 2 is moved obliquely forward (front seat 8a side) from the position where the monitor display surface 2a faces the vehicle rear. Since the monitor 2 is not turned upside down when moving to the position to face, there is an effect that the display control (FIG. 21) of displaying the display image upside down according to the direction of the monitor display surface 2a becomes unnecessary.

  In the first embodiment, a mechanism (such as the motor 25 shown in FIG. 8) for rotating the monitor 2 about the rotation support shafts 13 and 14 by about 180 degrees is necessary. Since the mechanism is not necessary in the embodiment, the configuration of the in-vehicle display device can be simplified.

Embodiment 3 FIG.
In the first embodiment described above, the operation of moving the monitor 2 from the first position to the second position is performed at an arbitrary timing by the user's operation. However, in this embodiment, the driving operation of the vehicle Control to link with. The configuration for moving the monitor 2 is the same as that in the first embodiment.

  FIG. 32 is a diagram showing a transmission operating device 80 as a vehicle traveling direction detection device in the present embodiment. A vehicle transmission operation device (transmission operation device) 80 is installed beside the normal driver's seat (front seat 8a), and the driver (occupant 6a) operates the shift lever 81. Thus, the traveling direction of the vehicle is switched.

  The control unit 70 of the in-vehicle display device in the present embodiment is electrically connected to the shift operation device 80. The control unit 70 can detect whether forward traveling (D range or the like) is selected as the vehicle traveling direction in the speed change operation device 80 or backward traveling (R range) is selected.

  FIG. 33 shows a display control sequence by the control unit 70. As shown in FIG. 33A, when the shift lever 81 is switched from forward travel (D range or the like) to backward travel (R range), the switch 3 (FIG. 7) is ON and the switch 4 (FIG. 7). Is off, that is, when the monitor display surface 2a faces the rear of the vehicle, the control unit 70 starts to rotate the motor 25 as in the first embodiment. The control unit 70 stops the rotation of the motor 25 when the switch 4 is turned on, as in the first embodiment. Subsequently, the motor 62 (FIG. 3) is rotationally driven to start the rotation of the base plate 52, and the monitor 2 is positioned so that the monitor display surface 2a faces obliquely forward (front seat 8a side).

  On the other hand, as shown in FIG. 33B, when the shift lever 81 is switched from forward travel (D range or the like) to backward travel (R range), when the switch 3 is off and the switch 4 is on, When the monitor display surface 2a is already facing obliquely forward, the control unit 70 does not drive the motor 25, and the monitor display surface 2a remains facing obliquely forward.

  The control unit 70 may display an image of the rear of the vehicle on the monitor display surface 2a when the backward movement (R range) is selected by the shift lever 81. In this way, the driver can check the situation behind the vehicle through the monitor display surface 2a only by switching the shift lever to the backward travel, so that convenience is improved.

  As described above, according to the present embodiment, in conjunction with the driving operation, the monitor 2 can be automatically moved to a position where the monitor display surface 2a faces obliquely forward (front seat 8a side). Therefore, for example, it can be effectively used as a driver support ambient condition monitor when traveling backward without imposing an operation burden on the driver. That is, the utility value of the in-vehicle display device can be improved.

  Further, since the traveling direction of the vehicle is detected on the basis of the speed change operation device 80, it is accurately detected that the driver is going to advance the vehicle backward, and as a driver assistance ambient condition monitor. Utilization can be improved.

  Here, the case where the control for linking the movement of the monitor 2 to the driving operation of the vehicle is applied to the in-vehicle display device described in the first embodiment, but the in-vehicle display described in the second embodiment is described. You may apply to an apparatus.

Embodiment 4 FIG.
In Embodiment 1 described above, when the monitor 2 is accommodated in the housing 1, the back surface 2 b of the monitor 2 is configured to face the outside (downward) of the housing 1, but in the present embodiment, A first accommodation state in which the display surface 2a of the monitor 2 faces out of the housing 1 and a second accommodation state in which the back surface 2b of the monitor 2 faces out of the housing 1 can be selected. Further, when the monitor 2 is in the first accommodation state, display is performed on the monitor display surface 2a.

  FIG. 34 is a perspective view of the monitor 2 as viewed from the lower front side of the vehicle when the monitor display surface 2a is in the housing 1 from the state in which the monitor display surface 2a faces the front of the vehicle (+ Y direction). FIG. 35 is a perspective view of the state in which the monitor 2 is accommodated in the housing 1 as viewed from the lower front side of the vehicle.

  When the first accommodation state is selected by the user, the motor 47 is driven to rotate from the state where the monitor display surface 2a faces the front of the vehicle (+ Y direction) (see FIGS. 16 and 17), As shown in FIG. 34, the monitor 2 is accommodated in the housing 1. As a result, the monitor 2 is housed in the housing 1 with the monitor display surface 2a facing the outside of the housing 1, as shown in FIG. When the second accommodation state is selected by the user, the motor 25 (FIG. 8) is driven to rotate from the state where the monitor display surface 2a faces the front of the vehicle, as in the first embodiment. Then, after the monitor 2 is rotated about 180 degrees around the X axis, the motor 47 (FIG. 10) is rotationally driven to accommodate the monitor 2 in the housing 1. Thereby, the monitor 2 is accommodated in the housing 1 with the monitor back surface 2 b facing the outside of the housing 1. In any case, when the monitor 2 is housed in the housing 1, the switch contact portion 36c (see FIG. 11) of the slide plate 36 contacts the switch 50, and the rotation of the motor 47 is stopped.

  Whether the monitor 2 is in the first accommodation state or the second accommodation state can be determined by the switches 3 and 4 (FIG. 11) described in the first embodiment. That is, when the switch 3 is off and the switch 4 is on, the monitor 2 is in a state of being accommodated with the monitor display surface 2a facing out of the housing 1, that is, in the first accommodated state. On the other hand, when the switch 3 is on and the switch 4 is off, the monitor 2 is accommodated with the monitor surface 2a facing upward and the monitor back surface 2b facing outside the housing 1, as shown in FIG. It is in the state, that is, the second accommodation state.

  FIG. 36 is a diagram illustrating a display control sequence of the control unit 70. As shown in FIG. 36A, when the switch 50 is switched from OFF to ON, the switch 3 is OFF and the switch 4 is ON (that is, the monitor 2 is in the first accommodation state). The control unit 70 continues the display on the monitor display surface 2a by the display circuit 60. That is, the monitor 2 displays an image or the like even when it is housed in the housing 1. Thereby, for example, even when the occupant lies down horizontally on the in-vehicle seat, good visibility of the monitor 2 can be ensured.

  On the other hand, as shown in FIG. 36B, when the switch 50 is switched from OFF to ON, the switch 3 is OFF and the switch 4 is ON (that is, the monitor 2 is in the second accommodation state). In the case), the control unit 70 stops the display on the monitor display surface 2a by the display circuit 60.

  When the monitor 2 is in the first accommodation state, the display circuit 60 switches the display image on the monitor display surface 2a up and down as shown in FIGS. 37 and 38 by the user's arbitrary switching operation. Can do. As a result, the monitor display surface 2a can be visually recognized even when the occupant is lying with the head facing the front of the vehicle or when the head is lying with the head facing the rear of the vehicle.

  As described above, according to the present embodiment, since the monitor display surface 2a can be displayed even when the monitor 2 is housed in the housing 1, for example, the passenger is placed sideways by tilting the in-vehicle seat. Thus, the visibility when viewing the monitor 2 is improved. Thereby, the use of a vehicle-mounted display apparatus can be expanded.

  Further, when not in use, the monitor display surface 2a can be protected by selecting the second accommodation state in which the monitor back surface 2b faces the outside of the housing 1.

  Further, by allowing the display image of the monitor 2 to be switched up and down, the range in which the monitor 2 can be viewed in the vehicle interior is expanded, and the restrictions on the position and posture of the passenger viewing the monitor 2 in the vehicle interior can be reduced. it can.

It is a figure which shows arrangement | positioning in the vehicle interior of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle back lower side. It is the perspective view which looked at the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle back upper side. It is a top view of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which expands and shows the mechanism part of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a top view which expands and shows the mechanism part of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the rear view which looked at the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle rear side. It is a figure which expands and shows the monitor inversion mechanism of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the monitor accommodation state of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle back lower side. It is the perspective view which looked at the monitor accommodation state of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle back upper side. It is a top view which shows the monitor accommodation state of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the operation | movement which opens and closes the monitor holding | maintenance part of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a top view which shows the operation | movement which opens and closes the monitor holding | maintenance part of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state in the middle of the operation | movement which reverses the monitor of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state in the middle of the operation | movement which reverses the monitor of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the state which orient | assigned the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention to the vehicle front from the vehicle back upper side. It is the perspective view which looked at the state which turned the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention to the vehicle front from the vehicle front lower side. It is a top view which shows the operation | movement which rotates the baseplate of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the operation | movement which rotates the baseplate of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention from the vehicle front lower side. It is a top view which shows the direction in the vehicle interior of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the display control method of the vehicle-mounted display apparatus which concerns on Embodiment 1 of this invention. It is the perspective view which looked at the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention from the vehicle back lower side. It is the perspective view which looked at the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention from the vehicle back upper side. It is the rear view which looked at the mechanism part of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention from the vehicle rear side. It is the bottom view which looked at the mechanism part of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention from the downward direction. It is the perspective view which looked at the monitor accommodation state of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention from the vehicle back lower side. It is a bottom view of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention. It is a perspective view which shows the operation | movement which switches the direction of the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention. It is a bottom view which shows the operation | movement which switches the direction of the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention. It is the perspective view which looked at the state where the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention faces diagonally forward from the vehicle rear side. It is a bottom view which shows the state which the monitor display surface of the vehicle-mounted display apparatus which concerns on Embodiment 2 of this invention has faced diagonally forward. It is a figure which shows the control part and shift operation apparatus of the vehicle-mounted display apparatus which concern on Embodiment 3 of this invention. It is a figure which shows the display control method of the vehicle-mounted display apparatus which concerns on Embodiment 3 of this invention. In the vehicle-mounted display device according to Embodiment 4 of the present invention, it is a perspective view showing the operation of housing the monitor in the housing with the monitor display surface facing the front of the vehicle. In the vehicle-mounted display apparatus which concerns on Embodiment 4 of this invention, it is a perspective view which shows the state which accommodated the monitor in the housing | casing, with the monitor display surface facing the exterior of the housing | casing. It is a figure which shows the display control method of the vehicle-mounted display apparatus which concerns on Embodiment 4 of this invention. It is a perspective view which shows the example of a display of the vehicle-mounted display apparatus which concerns on Embodiment 4 of this invention. It is a perspective view which shows the other example of a display of the vehicle-mounted display apparatus which concerns on Embodiment 4 of this invention.

Explanation of symbols

  1 housing, 1p bottom plate, 1q opening, 2 monitor, 2a monitor display surface, 3, 4 switch, 6a, 6b front seat occupant, 7a, 7b rear seat occupant, 10 monitor holding unit, 11, 12 monitor holding member , 13, 14 rotating support shaft, 20 monitor moving mechanism, 21 first gear, 22 second gear, 23 third gear, 24 motor gear, 25 motor, 26 motor holding member, 27, 28 gear pin, 30 protruding and retracting mechanism, 31, 32 Rotating support shaft, 38, 39 Rack part, 43 First gear, 44 Second gear, 45 Third gear, 46 Motor gear, 47 Motor, 50, 51 Switch, 52 Base plate, 54 First gear, 55 First 2 gears, 56 third gear, 57 motor gear, 60 display circuit, 62 motor, 70 Control unit, 71 base plate, 74 monitor holding member, 80 speed change operation device, 100 vehicle compartment.

Claims (10)

A monitor having a display surface;
A housing for housing the monitor;
A projecting / retracting mechanism for moving the monitor between a retracted position retracted into the housing and a projecting position projecting out of the housing;
When the monitor is in the protruding position, the monitor has a first position where the display surface is visible by a passenger in the rear seat, and a second position where the display surface is visible by a passenger in the front seat. An in-vehicle display device comprising: a moving mechanism that moves between the vehicle and the vehicle. The moving mechanism is
A base member for supporting the monitor;
The vehicle-mounted display device according to claim 1, further comprising: a base rotation mechanism that rotates the base member about a substantially vertical axis. The moving mechanism is
A monitor holding unit attached to the base member and holding the monitor;
The in-vehicle display device according to claim 2, further comprising: a monitor rotation mechanism that substantially reverses the direction of the monitor with respect to the monitor holding unit.   The moving mechanism reverses the direction of the monitor by the monitor rotation mechanism from the state where the monitor is in the first position, and further rotates the base member by the base rotation mechanism. The in-vehicle display device according to claim 3, wherein the monitor is moved to the second position.   The moving mechanism moves the monitor to the second position by turning the base member by the base turning mechanism from a state where the monitor is in the first position. The in-vehicle display device according to claim 2. Traveling direction detection means for detecting the traveling direction of the vehicle;
Control means for moving the monitor to the second position by the moving mechanism when the traveling direction detecting means detects that the vehicle travels backward. The in-vehicle display device according to any one of claims 1 to 5.   The in-vehicle display device according to claim 6, wherein the traveling direction detection unit detects the traveling direction based on a shift mechanism of a vehicle.   The in-vehicle display device according to any one of claims 1 to 7, configured to perform display on the display surface in a state where the monitor is retracted to the retracted position. When the monitor is in the retracted position, the first accommodation state in which the display surface faces outside the housing and the second accommodation state in which the surface opposite to the display surface faces outside the housing are selected. Is possible,
The vehicle-mounted vehicle according to claim 8, further comprising a display control unit configured to perform display on the display surface in the first housing state and control not to perform display on the display surface in the second housing state. Display device.   The in-vehicle display device according to claim 8, further comprising a display circuit capable of selecting a direction of an image to be displayed on the display unit in the first accommodation state.

Images