JP2017087931A - Backward monitoring system of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a backward monitoring system of a vehicle which can display a lower part of a vehicle rear end and its periphery, and a part viewed from a vehicle rear part to a direction approximately parallel to a travel road surface respectively and appropriately by images photographed by a common camera.SOLUTION: This system includes a camera 23 arranged on a rear part of a vehicle 10, and a monitor arranged in a cabin, photographs a periphery of the rear part of the vehicle 10 by the camera 23, and displays the photographed image on the monitor. The system includes a rotation device 30 which switches a photographing angle of the camera 23 between either a first photographing angle which is oriented to a lower side of the vehicle 10 than an angle parallel to the travel road surface of the vehicle 10 or a second photographing angle which is closer to the angle parallel to the travel road surface than the first photographing angle.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a vehicle rear monitoring system.

  When the vehicle is moving backward, the lower part of the rear end of the vehicle, which becomes a blind spot from the driver's seat, and its surroundings are photographed from above the vehicle by a camera, and the photographed image is displayed on a monitor in the vehicle interior (for example, a monitor of a navigation system). A monitor system is known (see Patent Document 1). The camera for the back monitor system is attached to a body (for example, a back door) at the rear of the vehicle.

  Also proposed is a rear view monitoring system that captures the situation seen from the rear of the vehicle with a camera in a direction substantially parallel to the road surface, and displays the captured image on a monitor in the vehicle interior (for example, a monitor integrated with a rearview mirror). Has been. The camera for the rear view monitoring system is attached to the body at the rear of the vehicle.

JP 2014-210529 A

  When both the back monitor system and the rear view monitor system are mounted on a vehicle, a common camera is attached to the body at the rear of the vehicle, and this camera is used as a camera for the back monitor system and a camera for the rear view monitor system. It is possible.

  Here, both the back monitor system and the rear view monitor system capture the periphery of the rear of the vehicle with a camera and display it on the monitor. Nonetheless, the back monitor system captures and displays the lower part of the rear end of the vehicle and its surroundings, while the rear view monitor system captures and displays the situation viewed from the rear of the vehicle in a direction substantially parallel to the road surface. As described above, these systems differ in the range of images captured by the camera and displayed on the monitor. Therefore, when each system is mounted on a vehicle, if a common camera is simply provided, the camera can cover a wide range including the lower part of the rear end of the vehicle and its periphery, and the part visible in the horizontal direction from the rear of the vehicle. In this case, the image is taken and displayed on the monitor, and there is a possibility that the surrounding situation cannot be accurately confirmed by the display on the monitor.

  The present invention has been made in view of such a situation, and an object of the present invention is to aim at a direction substantially parallel to the traveling road surface from the lower part of the rear end of the vehicle and its periphery and the rear part of the vehicle by an image photographed by a common camera. An object of the present invention is to provide a vehicle rear monitoring system capable of displaying each visible portion separately and accurately.

  Hereinafter, a rear monitor system for solving the above-described problems has a camera provided at the rear of the vehicle and a monitor provided in the vehicle interior, and images the periphery of the rear of the vehicle with the camera. A rear monitoring system for a vehicle that displays the photographed image on the monitor, wherein the camera is directed at a photographing angle directed to a lower side of the vehicle than an angle parallel to a traveling road surface of the vehicle. There is a switching unit that switches between one shooting angle and a second shooting angle that is closer to an angle that is parallel to the traveling road surface than the first shooting angle.

  According to the system described above, by setting the shooting angle of the camera to the first shooting angle by the switching unit, the lower part of the rear end of the vehicle and its periphery can be taken and displayed on the monitor by the camera. Therefore, in this case, the lower part of the rear end of the vehicle and the vicinity thereof can be accurately displayed by the video imaged by the common camera. In addition, by setting the shooting angle of the camera to the second shooting angle by the switching unit, it is possible to shoot an image that can be viewed from the rear of the vehicle in a direction substantially parallel to the traveling road surface and display it on the monitor. In this case, it is possible to accurately display a situation that can be seen from the rear of the vehicle in a direction substantially parallel to the traveling road surface by an image captured by a common camera.

  In the system described above, it is preferable that the camera can be rotated in such a manner that a shooting direction is inclined in the vertical direction of the vehicle, and the switching unit is configured to switch a rotation angle of the camera.

According to the above system, the shooting angle of the camera can be switched by rotating the camera.
In the system, the vehicle includes a decorative member having one surface that forms an outer surface of the vehicle and at least a portion that transmits light from the outside of the vehicle toward the inside of the vehicle, and the camera includes the transmission portion. The exterior of the vehicle can be photographed by light incident thereon, and the decorative member is integral with the decorative member, and the decorative member is rotatable in a manner inclined in the vertical direction of the vehicle. It is preferable that the rotation angle of the decorative member is switched.

  According to the above system, since the camera can be arranged in a mode of concealing the interior side of the decorative member, the camera is provided on the vehicle while suppressing the deterioration of the design due to the camera being exposed to the outside of the vehicle. Can do. In addition, by rotating the decorative member integrated with the camera, the shooting angle of the camera can be switched while maintaining the state in which the outside of the vehicle can be photographed by the light incident on the camera via the transmitting portion of the decorative member. Can do.

  In the above-described system, a sealing member that expands and contracts with the switching of the rotation angle of the decorative member by the switching unit, and that closes a gap between the decorative member and a portion adjacent to the decorative member in the vehicle. It is preferable to have.

  When the decorative member is rotated with respect to the vehicle, the gap between the decorative member and the portion adjacent to the decorative member in the vehicle changes, so that the gap cannot be properly sealed, and the vehicle passes through the gap. There is a risk that foreign matter (rain water or dust) may enter the interior of the.

  According to the above system, such a gap can be sealed by being sealed with a seal member that expands and contracts with the switching of the rotation angle of the decorative member. For this reason, entry of foreign matter into the vehicle through the gap can be suppressed.

  In the system, the vehicle has a decorative member in which one surface forms an outer surface of the vehicle, and at least a part forms a transmitting portion that transmits light from the outside of the vehicle toward the inside of the vehicle, and the transmitting portion of the decorative member and the decorative member And a movable member that is disposed at a position that interrupts the camera located on the inner side of the vehicle and is rotatable in a manner inclined in the vertical direction of the vehicle, and the movable member is rotated. When the angle is the first angle, the light entering the vehicle is transmitted through the transmission part, while when the rotation angle is a second angle different from the first angle, the light is transmitted through the transmission part. The light incident on the inside of the vehicle is blocked and the surface facing the camera is a reflecting mirror, and the switching unit sets the rotation angle of the movable member to the first angle and the second angle. Cut into one of It is preferable that obtain things.

  According to the above system, since the camera can be disposed in a manner of concealing the interior side of the decorative member, the camera can be provided on the vehicle while suppressing a decrease in design properties due to the camera being exposed to the outside of the vehicle. it can.

  In addition, in the above system, when the rotation angle of the movable member disposed between the decorative member and the camera becomes the first angle, light transmitted through the decorative member transmitting portion and the movable member enters the camera from the outside of the vehicle. Therefore, the outside of the vehicle can be photographed by this light. Further, when the rotation angle of the movable member becomes the second angle, the light reflected by the camera-side surface of the movable member enters the camera, so that the outside of the vehicle can be photographed with the light. . Thus, according to the system described above, the shooting angle of the camera can be switched by switching the rotation angle of the movable member disposed between the decorative member and the camera.

  In the above system, it is preferable that the switching unit sets the shooting angle of the camera to the first shooting angle when the vehicle moves backward and the second shooting angle when the vehicle moves forward.

  According to the above system, when the vehicle is moving backward, the lower part of the rear end of the vehicle and its surroundings can be photographed and displayed on the monitor, and when the vehicle moves forward, the camera can view images viewed from the rear of the vehicle in a direction substantially parallel to the road surface. Can be taken and displayed on the monitor.

  According to the present invention, the lower part of the rear end of the vehicle and the vicinity thereof and the part that can be seen from the rear part of the vehicle toward the direction substantially parallel to the traveling road surface can be displayed separately and accurately by the image photographed by the common camera. it can.

1 is a schematic diagram showing a schematic configuration of a vehicle to which a rear monitoring system of a first embodiment is applied. The front view of the decoration member provided in the vehicle. FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 2. Side surface sectional drawing of the decoration member and its periphery. Side surface sectional drawing of the decoration member and its periphery. The disassembled perspective view of the decorative member, the seal member, and the attachment hole. Side surface sectional drawing of the decoration member in 2nd Embodiment, and its periphery. Side surface sectional drawing of the decoration member and its periphery. The front view of the decoration member of other embodiment. (A) is sectional drawing along the 10A-10A line of FIG. 9, (b) is sectional drawing along the 10B-10B line of FIG. The front view of the decoration member of other embodiments, and its periphery. Side surface sectional drawing of the decoration member and its periphery.

(First embodiment)
Hereinafter, a first embodiment of the vehicle rear monitoring system will be described.
As shown in FIG. 1, the vehicle 10 is provided with a shift lever device 11 operated by a driver. In the shift lever device 11, the drive (D) position is selected when the vehicle 10 travels forward, while the reverse (R) position is selected when the vehicle 10 travels backward. The vehicle 10 is provided with a shift position sensor 12 for detecting the operation position of the shift lever device 11.

  The vehicle 10 has a decorative member 20 (emblem in this embodiment). The decorative member 20 is attached to a central portion in the vehicle width direction at the rear portion of the vehicle 10 in a form in which one surface forms the outer surface of the vehicle 10. As shown in FIG. 2, the decorative member 20 is colored in a portion (metal gloss portion 21) where a metal plating layer is formed by metal plating on the surface of a base material made of a synthetic resin, and opaque (black) in the same base material. And a portion that is semi-transparently colored and transmits light (transmitting portion 22B). A transparent layer (protective layer 24) made of a synthetic resin is formed on the surface of the decorative member 20 on the vehicle outer side.

  As shown in FIG. 1 and FIG. 3, the vehicle 10 has a camera 23 that is integrally attached to the decorative member 20 on the inner side of the decorative member 20. The camera 23 is attached in such a manner that the outside of the vehicle 10 can be photographed by light incident through the transmitting portion 22B (FIG. 3) of the decorative member 20.

  As shown in FIG. 1, a monitor 14 that displays an image captured by a camera 23 is provided in a passenger compartment 13 of the vehicle 10. This monitor 14 is a monitor for a navigation system. A camera 23 and a shift position sensor 12 are connected to the monitor 14.

  An inner mirror device 15 and a changeover switch 16 for switching display contents of the device 15 are provided in the compartment 13 of the vehicle 10. A camera 23, a shift position sensor 12, and a changeover switch 16 are connected to the inner mirror device 15.

  The inner mirror device 15 functions as a reflecting mirror that reflects the back of the vehicle 10 and also functions as a monitor that displays an image captured by the camera 23. Specifically, when the shift lever device 11 is operated to a position other than the R position and the changeover switch 16 is turned on, the inner mirror device 15 displays an image photographed by the camera 23. On the other hand, when the shift lever device 11 is operated to the R position or when the changeover switch 16 is turned off, the inner mirror device 15 becomes a reflecting mirror that reflects the rear side of the vehicle 10.

  The rear monitoring system of the present embodiment includes a lower portion of the rear end of the vehicle 10 that becomes a blind spot from the driver's seat when the vehicle 10 moves backward (specifically, when the shift lever device 11 is operated to the R position) and It has a back monitor function of photographing the periphery with the camera 23 and displaying it on the monitor 14. In the rear monitoring system of the present embodiment, when the changeover switch 16 is turned on with the shift lever device 11 being operated to a position other than the R position, the camera 23 displays the situation seen from the rear of the vehicle 10. And a rear view monitor function of displaying the image on the inner mirror device 15 in a direction substantially parallel to the image. The “traveling road surface” is a road surface when the vehicle 10 is traveling on a flat road.

  Here, the back monitor function and the rear view monitor function both capture the rear periphery of the vehicle 10 with the camera 23 and display it on the display device (the monitor 14 or the inner mirror device 15). Nonetheless, the back monitor function is a function for photographing and displaying the lower part of the rear end of the vehicle 10 and its periphery, while the rear view monitor function is substantially parallel to the traveling road surface when viewed from the rear part of the vehicle 10. As in the function of shooting and displaying in the direction, the range of shooting by the camera 23 differs in these functions.

  In view of this point, in the present embodiment, the lower portion of the rear end of the vehicle 10 and its surroundings, and the portion that can be seen from the rear portion of the vehicle 10 in a direction substantially parallel to the traveling road surface by the image captured by the common camera 23. In order to display each separately, the camera 23 and its peripheral parts are arranged as follows.

  As shown in FIGS. 4 and 5, the decorative member 20 is attached to the vehicle 10 so as to be rotatable in a manner that it is inclined in the vertical direction of the vehicle 10. The vehicle 10 is provided with a turning device 30 that switches the turning angle of the decorative member 20. In the present embodiment, the rotating device 30 functions as a switching unit.

  Specifically, the rotation device 30 controls the rotation mechanism 31 that rotates the decorative member 20 integrated with the camera 23 in the vertical direction of the vehicle 10, the motor 32 that operates the rotation mechanism 31, and the operation of the motor 32. And an electronic control unit 33.

  The rotation mechanism 31 has a driven gear 34 that is integrally provided on the inner surface (right side in FIG. 4) of the decorative member 20. The driven gear 34 is provided at the center in the vehicle width direction in the vicinity of the end of the decorative member 20 on the vehicle lower side.

  A rotating shaft 34A extending in the vehicle width direction is integrally formed in the vicinity of the connection portion of the driven gear 34 to the decorative member 20. The rotating shaft 34A is rotatably supported by the vehicle 10. As a result, the driven gear 34 and the decorative member 20 integrated with the driven gear 34 are rotatable with respect to the vehicle 10 about the rotation shaft 34A.

  The driven gear 34 is a fan-shaped plate material in which a plurality of teeth are arranged in an arc shape around the rotation shaft 34A. The plurality of teeth of the driven gear 34 are arranged in the vertical direction and are directed to the rear of the vehicle 10. The rotation mechanism 31 has a drive gear 35 fixed so as to rotate integrally with the output shaft of the motor 32. The rotation mechanism 31 includes the driven gear 34, the drive gear 35, and one or more gears (not shown) that connect them.

  The electronic control device 33 is connected to the motor 32 and the shift position sensor 12. The electronic control device 33 performs operation control (motor control) of the motor 32 based on the output signal of the shift position sensor 12. In the present embodiment, through this motor control, the photographing angle of the camera 23 integrated with the decorative member 20 is the following first photographing angle AP1 (angle shown in FIG. 5) and second photographing angle AP2 (angle shown in FIG. 4). It can be switched to either.

  (First shooting angle AP1) An angle at which the shooting center of the camera 23 is directed to the lower side of the vehicle 10 rather than an angle parallel to the traveling road surface of the vehicle 10, specifically, a lower portion of the rear end of the vehicle 10 and This is an angle at which the periphery can be photographed by the camera 23.

  (Second shooting angle AP2) An angle closer to an angle parallel to the traveling road surface of the vehicle 10 than the first shooting angle AP1, specifically, from the rear portion of the vehicle 10 toward a direction substantially parallel to the traveling road surface. This is an angle at which the visible portion can be photographed by the camera 23.

Hereinafter, functions and effects obtained by switching the shooting angle of the camera 23 in this manner will be described.
In the present embodiment, when the output signal of the shift position sensor 12 is a value indicating that the shift lever device 11 is operated to the R position, the electronic angle is set so that the shooting angle of the camera 23 becomes the first shooting angle AP1. The operation of the motor 32 is controlled by the control device 33. As a result, the lower portion of the rear end of the vehicle 10 and the vicinity thereof can be accurately photographed by the camera 23. Therefore, in this case, the lower part of the rear end of the vehicle 10 and its surroundings can be accurately displayed on the monitor 14 by the image taken by the common camera 23.

  On the other hand, when the output signal of the shift position sensor 12 is a value indicating that the shift lever device 11 is operated to a position other than the R position (for example, the D position), the shooting angle of the camera 23 is set to the second shooting angle AP2. Thus, the operation of the motor 32 is controlled by the electronic control unit 33. As a result, an image that can be seen from the rear of the vehicle 10 in a direction substantially parallel to the traveling road surface can be captured by the camera 23. When the changeover switch 16 is turned on in this state, the rear portion of the vehicle 10 is photographed by the camera 23 and the photographed image is displayed on the inner mirror device 15. Therefore, in this case, it is possible to accurately display on the inner mirror device 15 a situation that can be seen from the rear part of the vehicle 10 in a direction substantially parallel to the traveling road surface by the video imaged by the common camera 23.

  In the present embodiment, since the decorative member 20 and the camera 23 are integrated, the camera 23 can be arranged in a manner of concealing the decorative member 20 on the vehicle interior side. Therefore, the camera 23 can be provided in the vehicle 10 while suppressing a decrease in design properties due to the camera 23 being exposed outside the vehicle. Further, by rotating the decorative member 20 integral with the camera 23, the camera 10 can be photographed while maintaining the state in which the outside of the vehicle 10 can be photographed by the light incident on the camera 23 via the transmission portion 22B of the decorative member 20. 23 shooting angles can be switched.

  Here, when the decorative member 20 is rotated with respect to the vehicle 10, the gap between the decorative member 20 and a portion of the vehicle 10 adjacent to the decorative member 20 (specifically, the body 17 of the vehicle 10) changes. In addition, foreign matter (rainwater or dust) may enter the vehicle 10 through the gap.

  In view of this point, the vehicle 10 is provided with a seal member 18 that expands and contracts with the switching of the rotation angle of the decorative member 20 and closes the gap between the decorative member 20 and the body 17 of the vehicle 10. It has been.

  As shown in FIG. 6, the seal member 18 is formed in a cylindrical bellows shape by a synthetic resin. The body 17 of the vehicle 10 is provided with a hole (attachment hole 19) for attaching the decorative member 20. The attachment hole 19 extends in the front-rear direction of the vehicle 10 with a cross-sectional shape slightly larger than the outer shape of the decorative member 20. Further, the mounting hole 19 has a bottom wall portion 19 </ b> A that protrudes from the inner peripheral surface and extends in an annular shape along the inner peripheral edge at the front end (right side in FIG. 4) of the vehicle 10. . As shown in FIGS. 4 to 6, one end of the sealing member 18 is in close contact with the outer edge of the inner surface of the decorative member 20 in an annular shape, and the other end is the bottom wall portion of the mounting hole 19 of the body 17. It is attached in such a manner that it closely contacts the inner edge of the outer surface of 19A.

  Since the sealing member 18 is provided, when the decorative member 20 rotates with respect to the vehicle 10 and the interval between the body 17 and the decorative member 20 changes, the bellows-shaped sealing member 18 is connected to the body 17. It expands and contracts with the decorative member 20. Thereby, the close contact state between one end of the seal member 18 and the decorative member 20 and the close contact state between the other end of the seal member 18 and the bottom wall portion 19A of the body 17 are maintained. As described above, in the present embodiment, the gap between the decorative member 20 and the body 17 is sealed and sealed by the seal member 18 that expands and contracts as the rotational angle of the camera 23 (specifically, the decorative member 20) is switched. It is possible to prevent foreign matter from entering the vehicle 10 through the gap.

As described above in detail, according to the present embodiment, the following effects can be obtained.
(1) A first shooting angle AP1 which is an angle in which the shooting angle of the camera 23 is directed to the lower side of the vehicle 10 with respect to an angle parallel to the traveling road surface of the vehicle 10, and a traveling road surface with respect to the first shooting angle AP1. Switching to any one of the second imaging angle AP2 which is an angle close to the parallel angle is performed. Therefore, the lower part of the rear end of the vehicle 10 and its surroundings and the part that can be seen from the rear part of the vehicle 10 in the direction substantially parallel to the traveling road surface are displayed separately and accurately by the image captured by the common camera 23. Can be made.

  (2) Since the decorative member 20 and the camera 23 are integrated, the camera 10 can be provided in the vehicle 10 while suppressing a decrease in design properties due to the camera 23 being exposed to the outside of the vehicle. In addition, by rotating the decorative member 20 integrated with the camera 23, the camera 10 can be photographed while maintaining a state in which the outside of the vehicle 10 can be photographed by the light incident on the camera 23 via the transmission portion 22B of the decorative member 20. 23 shooting angles can be switched.

  (3) The gap between the decorative member 20 and the body 17 can be sealed by being sealed with the seal member 18 that expands and contracts with the switching of the rotation angle of the decorative member 20, and the inside of the vehicle 10 is passed through the gap. Intrusion of foreign matter can be suppressed.

  (4) When the vehicle 10 moves backward, the lower part of the rear end of the vehicle 10 and its periphery can be photographed by the camera 23 and displayed on the monitor 14. When the vehicle 10 moves forward, it is substantially parallel to the traveling road surface from the rear of the vehicle 10. An image that can be seen in any direction can be captured by the camera 23 and displayed on the inner mirror device 15.

(Second Embodiment)
Hereinafter, a second embodiment in which a vehicle rear monitoring system is embodied will be described focusing on differences from the first embodiment. In addition, below, the same code | symbol is attached | subjected and shown to the structure same as 1st Embodiment, and the detailed description is omitted.

In the present embodiment and the first embodiment, the mounting structure of the camera 23 and the peripheral structure of the camera 23 are different.
As shown in FIGS. 7 and 8, the decorative member 20 is fixed to a central portion in the vehicle width direction at the rear portion of the vehicle 40 in a manner in which one surface forms the outer surface of the vehicle 40. The camera 23 is fixed at a position inside the vehicle 40 relative to the decorative member 41 and spaced from the decorative member 41. The camera 23 is fixed in such a manner that the photographing center is oriented in a direction substantially parallel to the traveling road surface, and the outside of the vehicle 40 can be photographed by light incident through the transmitting portion 22B of the decorative member 41. Yes. According to the present embodiment, the camera 23 can be disposed in a manner to be concealed inside the interior of the decorative member 41, and the camera 23 can be mounted on the vehicle 40 while suppressing a decrease in design due to the camera 23 being exposed to the outside of the vehicle. Can be provided.

  A flat plate-shaped movable member 43 is provided inside the vehicle 40 at a position that blocks between the camera 23 and the decorative member 41. The movable member 43 is attached to the vehicle 40 so as to be rotatable with respect to the vehicle 40 so as to be inclined in the vertical direction of the vehicle 40. The vehicle 10 is provided with a rotation device 50 that switches the rotation angle of the movable member 43. In the present embodiment, the rotating device 50 functions as a switching unit.

  Specifically, the rotation device 50 includes a rotation mechanism 51 that rotates the movable member 43 in the vertical direction of the vehicle 40, a motor 32 that operates the rotation mechanism 51, and an electronic control device 33 that controls the operation of the motor 32. And.

  The rotation mechanism 51 has a driven gear 54 that is integrally provided at one end (the upper end in FIG. 7) of the movable member 43. A rotating shaft 54 </ b> A extending in the vehicle width direction is integrally formed at a connection portion between the movable member 43 and the driven gear 54. The rotating shaft 54A is rotatably supported by the vehicle 10. As a result, the movable member 43 and the driven gear 54 are rotatable with respect to the vehicle 40 about the rotation shaft 54A.

  The driven gear 54 is a fan-shaped plate material in which a plurality of teeth are arranged in an arc shape around the rotation shaft 54A. The plurality of teeth of the driven gear 54 are aligned in the front-rear direction of the vehicle 40 and are directed upward of the vehicle 40. The rotation mechanism 51 has a drive gear 55 fixed so as to rotate integrally with the output shaft of the motor 32. The rotation mechanism 51 includes the driven gear 54, the drive gear 55, and one or more gears (not shown) that connect them.

  In the present embodiment, the rotation angle of the movable member 43 is changed through motor control by the electronic control device 33. The movable member 43 has a structure that transmits light or becomes a reflecting mirror according to the rotation angle.

  Specifically, when the rotation angle of the movable member 43 becomes the first angle AM1 (in the present embodiment, an angle orthogonal to the traveling road surface), the movable member 43 enters the vehicle via the transmission portion 22B of the decorative member 41. It will be in the state which permeate | transmits the incident light. As a result, light (indicated by arrows in FIG. 7) that enters the interior of the vehicle 10 from the outside passes through the transmitting portion 22B and the movable member 43 of the decorative member 41 and enters the camera 23. 10 is a state in which an image that can be seen from the rear part of the vehicle 10 in a direction substantially parallel to the traveling road surface can be captured by the camera 23 (the state shown in FIG. 7). At this time, the shooting angle of the camera 23 becomes the second angle AM2. Thus, according to the present embodiment, by setting the rotation angle of the movable member 43 to the first angle AM1, the shooting angle of the camera 23 can be set to the second shooting angle AP2.

  On the other hand, when the rotation angle of the movable member 43 becomes the second angle AM2, which is an angle in which the surface (opposing surface 43A) facing the camera 23 is inclined toward the lower side of the vehicle 40 with respect to the first angle AM1, the movable member 43 43 becomes a state which interrupts | blocks the light which permeate | transmits the permeation | transmission part 22B of the decoration member 41, and injects from the direction substantially parallel to a driving | running | working road surface. At this time, the movable member 43 reflects light (indicated by an arrow in FIG. 8) that is transmitted through the transmission portion 22 </ b> B of the decorative member 41 and enters obliquely upward from the lower side of the vehicle 10 to the camera 23. It will be in a state of deflecting in the direction it heads.

  As a result, light that passes through the transmitting portion 22B of the decorative member 41 and enters the interior of the vehicle 10 from the outside to the inside in a direction substantially parallel to the traveling road surface is blocked by the movable member 43. An image viewed in a direction substantially parallel to the traveling road surface is not captured by the camera 23. In addition, light that is transmitted through the transmission portion 22B of the decorative member 41 and is incident obliquely upward from the lower portion of the rear end of the vehicle 10 and the periphery thereof is reflected (deflected) by the facing surface 43A of the movable member 43, and the camera 23, the lower part of the rear end of the vehicle 10 and its periphery can be photographed by the camera 23 (state shown in FIG. 8). At this time, the shooting angle of the camera 23 becomes the first angle AM1. Thus, according to the present embodiment, by setting the rotation angle of the movable member 43 to the second angle AM2, the shooting angle of the camera 23 can be set to the first shooting angle AP1.

  Such a structure of the movable member 43 is realized by making the movable member 43 a magic mirror, or by providing the movable member 43 with a polarizing layer that transmits only light having amplitude in a specific direction.

  In the present embodiment, when the output signal of the shift position sensor 12 is a value indicating that the shift lever device 11 is operated to the R position, the rotation angle of the movable member 43 becomes the second angle AM2 and the camera 23. The operation of the motor 32 is controlled by the electronic control unit 33 so that the shooting angle becomes the first shooting angle AP1.

  On the other hand, when the output signal of the shift position sensor 12 is a value indicating that the shift lever device 11 is operated to a position other than the R position (for example, the D position), the rotation angle of the movable member 43 is the first angle AM1. The operation of the motor 32 is controlled by the electronic control unit 33 so that the shooting angle of the camera 23 becomes the second shooting angle AP2.

  Thereby, the lower part of the rear end of the vehicle 10 and its periphery and the part that can be seen from the rear part of the vehicle 10 toward the direction substantially parallel to the traveling road surface are displayed separately and accurately by the image captured by the common camera 23. be able to.

According to this embodiment, the effect according to the effect as described in (1) and (4) above is obtained.
(Other embodiments)
In addition, each said embodiment can also be implemented as a modified example changed as follows.

In the first embodiment, instead of the seal member 18, a cylindrical seal member made of a rubber material that expands and contracts with switching of the rotation angle of the decorative member 20 may be provided.
-In 1st Embodiment, as a decoration member which attaches the camera 23 integrally, if at least one part is a member which makes the transmissive | permeation part which permeate | transmits light from the outside of a vehicle toward the inside of a vehicle, decoration members other than an emblem, and it is not conspicuous A colored member can be used.

  In the first embodiment, the decorative member 20 and the camera 23 are separated from each other, and the camera 23 is rotated without rotating the decorative member 20, thereby changing the shooting angle of the camera 23 to the first shooting angle. You may make it switch to AP1 and 2nd imaging | photography angle AP2. Such a rear monitor system can also be applied to a vehicle having a camera of a type that directly captures the outside of the vehicle without using a member that transmits light such as the decorative member 20.

  -In 2nd Embodiment, you may employ | adopt as a movable member what can change the state which becomes a reflective mirror, and the state which permeate | transmits light with an electrical signal. In this case, the movable member may be in a state of transmitting light when the rotation angle is the first angle AM1, and in a state of being a reflecting mirror when the rotation angle is the second angle AM2.

  In the second embodiment, the movable member may be formed by a reflecting mirror. By appropriately determining the fixed angle of the camera 23 and the rotation angle of the movable member, the camera 23 directs the lower part of the rear end of the vehicle 10 and its periphery and the rear part of the vehicle 10 in a direction substantially parallel to the traveling road surface. It is possible to shoot each part that is visible.

  The actuator for rotating the decorative member 20 (first embodiment) and the movable member 43 (second embodiment) is not limited to the motor 32, but may be a cylinder that operates by fluid pressure (air pressure or oil pressure). It may be adopted.

  In each embodiment, even when the shift lever device 11 is operated from the R position to a position other than the R position, when the changeover switch 16 is turned off, the shooting angle of the camera 23 is set to the second shooting angle. You may make it hold | maintain with 1st imaging | photography angle AP1 without switching to AP2. In other words, the shooting angle of the camera 23 is switched to the second shooting angle AP2 only when the operation position of the shift lever device 11 is a position other than the R position and the changeover switch 16 is turned on. Also good.

  In each embodiment, when an image viewed from the rear part of the vehicle 10 in a direction substantially parallel to the traveling road surface is captured by the camera 23, the captured image is not limited to being displayed on the inner mirror device 15, but navigation It may be displayed on the screen of the system (monitor 14) or may be displayed on a dedicated monitor. When the dedicated monitor is used, the changeover switch 16 is omitted, and when the operation position of the shift lever device 11 is a position other than the R position, an image captured by the camera 23 is displayed on the monitor. You may make it display.

  -In each embodiment, you may employ | adopt the photochromic material which changes a color tone in response to an ultraviolet-ray as a material which forms the transmissive part 22B. Usually, a photochromic material becomes transparent and has a high light transmittance when it is not exposed to ultraviolet rays, while it is colored and has a low light transmittance when exposed to ultraviolet rays. For this reason, by using a photochromic material as the material for forming the transmission part 22B, in the daytime when the transmission part 22B is exposed to ultraviolet rays, the transmission part 22B is in a colored state (semi-transparent state) with a low light transmittance. It is possible to make the camera 23 difficult to see from the outside. Further, at night when the transmissive part 22B is not exposed to ultraviolet rays, the transmissive part 22B can be made transparent with a high light transmittance so that the photographing by the camera 23 is not hindered by the transmissive part 22B.

  It is also possible to employ a photochromic material as a material for forming the protective layer 24. Even with such a configuration, the protective layer 24 is colored in the daytime to make it difficult to see the camera 23 from the outside of the vehicle, and at night, the protective layer 24 is made transparent so that shooting by the camera 23 is not hindered by the protective layer 24. Can be.

  Furthermore, as a material for forming the transmission portion 22B and a material for forming the protective layer 24, an electromic material that reversibly changes color when a voltage is applied can also be used. In such a configuration, the transmissive part 22B (or protective layer 24) is colored (semi-transparent state) during the daytime, and the transmissive part 22B (or protective layer 24) is highly light transmissive (eg, transparent) at night. The voltage applied to the transmission part 22B (or the protective layer 24) may be switched so that

The metallic gloss portion of the decorative member may be a magic mirror, and the camera may be disposed at a position where light enters through the metallic gloss portion.
Usually, since the metallic gloss portion does not transmit light, a camera cannot be provided at a position inside the vehicle of the metallic gloss portion. In the decorative member, since the metallic gloss portion is a magic mirror, light can be incident from the outside of the vehicle into the vehicle via the metallic gloss portion. Therefore, by providing the camera at a position where light enters through the metallic glossy part, it is possible to make it possible to photograph the outside of the vehicle with the camera while concealing the camera inside the interior of the decorative member.

  In addition, since the range in which the camera can be installed is wide as compared with a structure in which the metallic gloss portion of the decorative member hardly transmits light, the degree of freedom of camera installation can be increased. Thereby, the number of cameras which can be installed in the state concealed inside the vehicle of the decoration member can also be increased. Hereinafter, an example in which two cameras are provided in a state of being hidden on the vehicle interior side of the decorative member will be described.

  As shown in FIG. 9, FIG. 10 (a) and FIG. 10 (b), the decorative member 60 is colored in a semi-transparent manner with a metallic luster portion 61 made of a magic mirror, a colored portion 62A colored opaquely, and the like. It consists of a part that transmits light (transmission part 62B). Then, one camera 63 is arranged at a position where light is incident on the inside of the vehicle via the metallic luster portion 61, and the other camera 64 is positioned where light is incident on the inside of the vehicle via the transmitting portion 62B. It is arranged in. According to such a system, the two cameras 63 and 64 can be easily arranged in a manner of concealing the interior side of the decorative member 60.

  As shown in FIG. 10B, a convex portion 65 that protrudes toward the camera 64 may be provided on the inner surface of the decorative member 60. Of the outer surface of the convex portion 65, the surface facing the camera 64 (opposing surface 65A) is a flat surface. The convex portion 65 is directed in the front direction F of the facing surface 65A (specifically, the direction orthogonal to the opposing surface 65A and away from the convex portion 65) and the shooting direction P of the camera 64 (specifically, the shooting center of the camera 64). Direction).

  The shooting range of the camera 64 extends radially starting from the lens 64A. For this reason, when the distance between the lens 64A of the camera 64 and the decorative member 60 is increased, the range captured by the camera 64 on the inner surface of the decorative member 60 is widened, and the camera 64 itself is likely to be reflected in the captured image. . Therefore, when a reflecting member is provided in front of the lens 64A of the camera 64, the distance between the member (the facing surface 65A of the convex portion 65 of the decorative member 60 in the above system) and the lens 64A is short (FIG. 10). In the example shown in (b), 1 millimeter) is set.

  Here, even if the distance between the lens 64 </ b> A of the camera 64 and the decorative member 60 is set short, the decorative member 60 is in a state where the photographing direction of the camera 64 is inclined with respect to the inner surface of the decorative member 60. Compared with the state in which the inner surface of the camera and the shooting direction of the camera 64 are orthogonal to each other, the range of shooting by the camera 64 on the inner surface of the decorative member 60 becomes wider. Therefore, in this case, the camera 64 itself is likely to be reflected in the captured video.

  According to the above system, no matter what the shape of the decorative member 60 is, by providing the convex portion 65 on the inner surface of the decorative member 60, the outer surface of the convex portion 65 (opposing surface 65A). And the shooting direction of the camera 64 face each other, in other words, the inner surface of the decorative member 60 and the shooting direction of the camera 64 can be orthogonal to each other. Therefore, the reflection of the camera 64 itself due to reflection on the inner surface of the decorative member 60 can be suitably suppressed.

  Note that the facing surface 65A of the convex portion 65 of the decorative member 60 is not limited to being formed in a planar shape, and may be formed in a curved shape having a circular section or a spherical shape. When the facing surface 65A of the convex portion 65 is formed in a curved shape having a circular cross section, the front direction of the facing surface 65A of the convex portion 65 is matched by matching the radial direction of the circular arc shape with the shooting direction of the camera 64. And the shooting direction of the camera 64 face each other. Further, when the facing surface 65A of the convex portion 65 is formed in a spherical shape, the front direction of the facing surface 65A of the convex portion 65 and the camera 64 are matched by matching the radial direction of the spherical shape with the shooting direction of the camera 64. The shooting direction will be directly opposite.

  -While providing an auxiliary member in the position adjacent to a decoration member, you may make it arrange | position a camera in the position into which light injects through a part of the auxiliary member. 11 and 12 show an example of such a system. As shown in FIGS. 11 and 12, a decorative member 71 is attached to the vehicle 70. A camera 73 is disposed at a position where light enters through the transmissive portion 72 </ b> B (first transmissive portion) of the decorative member 71. An auxiliary member 74 is attached to a position of the vehicle 70 adjacent to the vehicle lower side of the decorative member 71. The auxiliary member 74 is provided so that one surface forms the outer surface of the vehicle 70. The auxiliary member 74 is made of a translucent colored resin material. In this system, the entire auxiliary member 74 corresponds to a second transmission part that transmits light from the outside of the vehicle toward the inside of the vehicle. A camera 75 is disposed at a position where light enters through the auxiliary member 74.

  When the two cameras 73 and 75 are arranged so as not to be exposed to the outside of the vehicle by using the decoration member 71 in order to suppress the deterioration of the design property due to the cameras 73 and 75 being exposed to the outside of the vehicle, Depending on the size and shape, the two cameras 73 and 75 may not be concealed. According to the above system, one camera 73 can be arranged in a manner of concealing the interior side of the decorative member 71, and the other camera 75 can be disposed in a form of concealing the inside of the auxiliary member 74, The two cameras 73 and 75 can be easily provided on the vehicle 70 in such a manner that they are not exposed to the outside of the vehicle. In addition, since the decorative member 71 and the auxiliary member 74 are adjacent to each other, related parts (wiring, connectors, etc.) of the two cameras 73 and 75 can be integrated and made compact.

  A part of the auxiliary member 74 (second transmission part) may be transparent or semi-transparent, and the camera 73 may be disposed at a position where light is incident through the second transmission part. In this case, portions of the auxiliary member 74 other than the second transmission portion can be colored or decorated so as not to transmit light. Further, a part or the whole of the auxiliary member 74 may be a magic mirror, and the camera 75 may be disposed at a position where light enters through the magic mirror portion. Further, the auxiliary member can be provided at a position adjacent to the vehicle upper side of the decoration member 71 or can be provided at a position adjacent to the vehicle side of the decoration member 71.

<Appendix>
About the technical idea which can be grasped | ascertained from the said embodiment and its modification, it adds to the following with those effect.

(Additional item 1)
A vehicle rear monitoring system for photographing the periphery of the rear of the vehicle with two cameras provided at the rear of the vehicle and displaying the photographed image on a monitor provided in the vehicle interior,
The vehicle has a decorative member having one surface forming the outer surface of the vehicle and at least a portion forming a transmission portion that transmits light from the outside of the vehicle toward the inside of the vehicle,
The transmission part is composed of a metallic luster part made of a magic mirror and other parts,
One of the two cameras is arranged at a position where light enters through the metallic gloss part, and the other of the two cameras receives light through the other part. A vehicle rear monitoring system, characterized in that the vehicle rear monitoring system is arranged at a position.

(Operational effect of supplementary item 1)
According to the above system, since the camera can be arranged in a mode of concealing the interior side of the decorative member, the camera is provided on the vehicle while suppressing the deterioration of the design due to the camera being exposed to the outside of the vehicle. Can do.

  Moreover, since the metallic gloss part of the decorative member is a magic mirror that transmits light, the range in which the camera can be installed is wider than that of a structure in which the metallic gloss part hardly transmits light. Therefore, the degree of freedom of camera installation can be increased.

  According to the above system, one of the two cameras is disposed at a position where light is incident through the metallic glossy part, and the other of the two cameras is lighted through a part other than the metallic glossy part. It is possible to easily arrange the two cameras in such a manner that they are concealed inside the interior of the decorative member, such as being arranged at a position where the light is incident.

(Appendix 2)
A vehicle rear monitoring system for photographing the periphery of the rear of the vehicle with two cameras provided at the rear of the vehicle and displaying the photographed image on a monitor provided in the vehicle interior,
The vehicle is
A decorative member having a first transmissive portion that has one surface that forms the outer surface of the vehicle and at least a portion that transmits light from the outside of the vehicle toward the inside of the vehicle;
An auxiliary member that is adjacent to the decorative member and forms a second transmission part at least a portion of which transmits light from the outside of the vehicle toward the inside of the vehicle;
One of the two cameras is arranged at a position where light enters through the first transmission part, and the other of the two cameras receives light through the second transmission part. A vehicle rear monitoring system, characterized in that the vehicle rear monitoring system is arranged at a position.

(Operational effect of supplementary item 2)
In order to suppress the deterioration of the design due to the camera being exposed to the outside of the vehicle, when two cameras are arranged so as not to be exposed to the outside of the vehicle using the decorative member, depending on the size and shape of the decorative member, The camera may not be concealed.

  According to the above-described system, one camera can be arranged in a mode of concealing the interior side of the decorative member, and the other camera can be disposed in a mode of concealing the inside side of the auxiliary member. It can be easily provided on the vehicle in a manner not exposed to the outside of the vehicle. Moreover, since the decorative member and the auxiliary member are adjacent to each other, the related parts (wiring, connector, etc.) of the two cameras can be integrated and made compact.

(Additional Item 3)
A vehicle rear monitoring system for photographing the periphery of the rear of the vehicle by a camera provided at the rear of the vehicle and displaying the photographed image on a monitor provided in the vehicle interior,
The vehicle has a decorative member having one surface forming the outer surface of the vehicle and at least a portion forming a transmission portion that transmits light from the outside of the vehicle toward the inside of the vehicle,
The camera is arranged at a position where the outside of the vehicle can be photographed by light incident through the transmission unit,
The decorative member has a convex portion protruding toward the camera on the inner surface of the vehicle,
The rear monitor system for a vehicle, wherein the convex portion has a shape in which a front direction of a surface of the outer surface facing the camera and a shooting direction of the camera face each other.

(Operational effect of additional item 3)
The shooting range of the camera expands radially starting from the camera lens. For this reason, when the distance between the lens of the camera and the decorative member is increased, the range captured by the camera on the inner surface of the decorative member is widened, and the camera itself is likely to be reflected in the captured image. For this reason, usually, when a reflecting member is provided in front of the lens of the camera, the distance between the member (decorative member in the above system) and the lens is set short.

  Here, even if the distance between the lens of the camera and the decorative member is set to be short, if the photographing direction of the camera is inclined from the state orthogonal to the inner surface of the decorative member, Compared to a state in which the directions are orthogonal to each other, the range of the decorative member that is photographed by the camera on the inner surface of the vehicle is widened, so that the camera itself is likely to be reflected in the photographed image.

  According to the above system, regardless of the shape of the decorative member, by providing a convex portion on the inner surface of the decorative member, the outer surface of the convex portion and the shooting direction of the camera are aligned. In other words, in other words, the inner surface of the decorative member and the shooting direction of the camera can be orthogonal to each other. Therefore, it is possible to suitably suppress the reflection of the camera itself due to the reflection of the decorative member on the inner surface of the vehicle.

  DESCRIPTION OF SYMBOLS 10,40,70 ... Vehicle, 11 ... Shift lever device, 12 ... Shift position sensor, 13 ... Cab, 14 ... Monitor, 15 ... Inner mirror device, 16 ... Changeover switch, 17 ... Body, 18 ... Seal member, 19 ... mounting hole, 19A ... bottom wall part, 20, 41, 60, 71 ... decorative member, 21, 61 ... metallic luster part, 22A, 62A ... colored part, 22B, 62B, 72B ... transmission part, 23, 63, 64 73, 75 ... Camera, 24 ... Protective layer, 30, 50 ... Rotating device, 31, 51 ... Rotating mechanism, 32 ... Motor, 33 ... Electronic control device, 34, 54 ... Driven gear, 34A, 54A ... Rotating Shaft, 35, 55 ... drive gear, 43 ... movable member, 43A ... opposing surface, 64A ... lens, 65 ... convex portion, 65A ... opposing surface, 74 ... auxiliary member.

Claims (6)

A vehicle rear monitor that has a camera provided at the rear of the vehicle and a monitor provided in the passenger compartment, and captures the periphery of the rear of the vehicle with the camera and displays the captured image on the monitor. A system,
A first shooting angle that is an angle that directs a shooting angle of the camera to a lower side of the vehicle than an angle that is parallel to the road surface of the vehicle, and a parallel to the road surface that is higher than the first shooting angle. A vehicle rear monitoring system comprising a switching unit that switches to any one of a second photographing angle that is an angle close to an angle. The vehicle rear monitoring system according to claim 1,
The camera is rotatable in such a manner that the shooting direction is inclined in the vertical direction of the vehicle,
The vehicle rear monitoring system, wherein the switching unit switches a rotation angle of the camera. The vehicle rear monitoring system according to claim 2,
The vehicle has a decorative member having one surface forming the outer surface of the vehicle and at least a portion forming a transmission portion that transmits light from the outside of the vehicle toward the inside of the vehicle,
The camera is integrated with the decorative member in a manner capable of photographing the outside of the vehicle with light incident through the transmission portion.
The decorative member is rotatable in a manner inclined in the vertical direction of the vehicle,
The vehicle rear monitoring system, wherein the switching unit switches a rotation angle of the decorative member. The vehicle rear monitoring system according to claim 3,
A seal member that expands and contracts with the switching of the rotation angle of the decorative member by the switching unit and that closes a gap between the decorative member and a portion adjacent to the decorative member in the vehicle is provided. A vehicle rear monitoring system. The vehicle rear monitoring system according to claim 1,
The vehicle is
A decorative member having one surface that forms the outer surface of the vehicle and at least a portion that transmits light from outside the vehicle toward the inside of the vehicle;
A movable member that is disposed at a position that shields between the transmitting portion of the decorative member and the camera positioned on the vehicle interior side than the decorative member, and that is rotatable in a manner inclined in the vertical direction of the vehicle. And
The movable member transmits light incident on the vehicle through the transmission portion when the rotation angle is the first angle, while the rotation angle is a second angle different from the first angle. Sometimes the light entering the vehicle through the transmission part is blocked and the surface facing the camera is a reflecting mirror.
The vehicle rear monitoring system, wherein the switching unit switches the rotation angle of the movable member to either the first angle or the second angle. In the vehicle rear monitoring system according to any one of claims 1 to 5,
The vehicle rear monitoring system, wherein the switching unit sets the shooting angle of the camera to the first shooting angle when the vehicle moves backward and the second shooting angle when the vehicle moves forward.

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