JP4007288B2 - Vehicle visibility adjustment method and apparatus - Google Patents

Description

  The present invention relates to a vehicle visibility adjustment method and apparatus in which a visibility adjustment portion is provided at a lower end portion of a front window glass so as to adjust a forward visibility by a driver, and more particularly, an assistant by blocking the forward visibility. The present invention relates to a technique for preventing a passenger from feeling troublesome.

  A conventional vehicle visibility adjustment method is known which improves driving safety by shielding the lower end portion of the front window glass and adjusting the forward visibility according to the running state (for example, And Patent Document 1).

  In such a conventional visibility adjustment method, the actual vehicle speed, the inter-vehicle distance, and the like are detected, and this value is compared with the corresponding value of the calculation method, thereby limiting the visibility especially when driving on a highway to prevent fatigue and sleepiness. In addition to ensuring safe driving, sufficient visibility is ensured during low-speed driving so that oversight of obstacles immediately before the vehicle can be prevented.

That is, in such a conventional visual field adjustment method, the main focus is on preventing fatigue caused by excessive use of nerves due to excessive visibility of the visual field immediately before the vehicle when traveling at a high speed. The visual interface area is limited by changing the height of the lower end.
Japanese Patent Laid-Open No. 2000-21355 (page 4, FIG. 4)

  However, in such a conventional vehicle field of view adjustment method, the front field of view by the driver is adjusted by uniformly shielding the lower end of the front window glass. Even the field of view is obstructed by the field of view adjustment, and the passenger in the passenger seat may feel annoyed.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a vehicle visibility adjustment method and apparatus capable of preventing passengers from feeling annoying.

  In order to solve the above-mentioned problem, the first feature of the vehicle field of view adjustment method according to the present invention is that the field of view adjustment part is constituted by a louver-like member. The second feature of the vehicle field of view adjustment method according to the present invention is that the field of view adjustment part is composed of at least two regions, and each region is composed of different angle-selective visual control bodies.

  In order to solve the above-mentioned problem, a first feature of the vehicle field of view adjustment device according to the present invention is that the field of view adjustment portion is constituted by a louver-like member. A second feature of the vehicle visual field adjustment device according to the present invention is that the visual field adjustment part is composed of at least two regions, and each region is composed of different angle-selective visual control bodies.

  According to the vehicle visual field adjustment method and apparatus according to the present invention, the visual field adjustment part is configured by a louver-like member, and a plurality of thin plates appear to be lined up from the passenger seat side. Only the driver can prevent the passenger in the passenger's seat from feeling annoying. Further, according to the visual field adjustment method and apparatus according to the present invention, the visual field adjustment part is configured by an angle-selective visual control body in which a transparent state and an opaque state change depending on a viewing angle, and the visual adjustment is performed for the driver. On the other hand, the passenger's seat occupant is given a field of view equivalent to that of a vehicle that does not have a field of view adjustment. Can be prevented.

  Hereinafter, a vehicle field of view adjustment method according to an embodiment of the present invention will be described in detail with reference to the drawings.

  First, the visual field adjustment method according to the first embodiment of the present invention will be described.

  As shown in FIG. 1, the visual field adjustment method according to the first embodiment of the present invention is provided with a visual field adjustment part 10 at the lower end of the front window glass 1, and the visual field adjustment part 10 provides a forward visual field by the driver. Configured to adjust. Further, the visibility adjusting portion 10 (1) arranges the vertex T between the driver's facing position P1 and the vehicle center position P0 and at a position offset by a distance S from the driver's facing position P1. 2) Left and right ridgelines Rl and Rr that uniformly incline from the vertex T toward both sides in the vehicle width direction are set, and (3) the lower end view of the front windshield 1 is adjusted by the vertex T and the left and right ridgelines Rl and Rr. It is formed by forming the parting line 11. In FIG. 1, reference numerals 2, 3, 4, and 5 denote a handle, a control lever, a right front door, and a left front door, respectively.

Moreover, the visual field adjustment part 10 is comprised by the louver-like member which consists of several plate-shaped members 6 as shown in FIG. 1, FIG. 2, and each plate-shaped member 6 is shown in FIG. When viewed from above the vehicle, the front window glass 1 is disposed so as to be parallel to a straight line connecting a point in contact with the lower end portion of the front window glass 1 and the passenger seat occupant head center position P3. Further, when numbers 1, 2,..., N are assigned to the respective plate-like members 6 in order from the passenger side end, the vehicle rear side end of the _nth plate-like member 6n is as shown in FIG. When viewed from above the vehicle, the (n-1) th plate-like member 6 _n-1 is arranged so as to intersect with a straight line connecting the point where the lower end of the front window glass 1 is in contact with the driver seat occupant head center position P4. ing.

  Further, as shown in FIG. 3, the vertex T is a line of sight that connects the viewpoint T of the driver M and the vertex T in a turning posture when turning right if the vehicle is a right-hand drive vehicle (when turning left if a left-hand drive vehicle). It arrange | positions so that it may exist outside the turning outer side oblique line Lout. As shown in FIG. 4, when the maximum angle of inclination formed by the driver's ridge line, that is, the right ridge line Rr for a right-hand drive vehicle and the left ridge line Rl for a left-hand drive vehicle is a horizontal line is θ1, θ2, Is set to be larger than the roll angle θR of the vehicle.

  As is apparent from the above description, according to the visual field adjustment method according to the first embodiment of the present invention, the visual field adjustment part 10 is constituted by a louver-like member made up of a plurality of plate-like members 6, and the passenger seat From the side, it seems that a plurality of thin plates are arranged as shown in FIG. 5 (a), while from the driver's seat side, it appears to be uniformly shielded as shown in FIG. 5 (b). Therefore, the effect of the visibility adjustment process and the effect of the parting line 11 to be described later can be limited to only the driver, and the passenger seat passenger can be prevented from feeling annoyance by blocking the front view.

  Further, in the visibility adjustment method according to the first embodiment of the present invention, the parting line 11 of the visibility adjustment portion 10 provided at the lower end of the front window glass 1 is from the vertex T arranged at a position offset from the driver. It is inclined downward uniformly toward both sides in the vehicle width direction.

  In the conventional vehicle visibility adjustment method, the parting line of the upper edge that shields the lower end of the front window glass extends straight in the vehicle width direction. Therefore, when turning right on a curved road, FIG. ) If the coordinates are taken on the vertical and horizontal axes based on the weight of the earth, the vehicle rolls to the left and the head tilts to the right to counter the turning lateral acceleration. If the scenery is viewed with reference to the front, the forward view rolls more than the roll angle of the vehicle, as shown in FIG. At this time, the driver adjusts the head tilt angle so that the vector sum of the gravitational acceleration and the turning lateral acceleration is in the direction near the vertical axis of the head, but this position does not necessarily stabilize and fluctuates. Has been confirmed. As a result of this fluctuation, the driving posture becomes unstable, and the steering is disturbed accordingly. This disturbance of the steering promotes the fluctuation of the turning lateral acceleration and creates a vicious circle in which the head inclination angle becomes further unstable. It will be.

  On the other hand, in the visual field adjustment method according to the first embodiment of the present invention, as described above, the parting line 11 of the visual field adjustment portion 10 provided at the lower end portion of the front window glass 1 is offset from the driver. As shown in FIG. 7, it is possible to suppress the inclination of the forward field of view by the parting line 11, and as a result, when turning, The fluctuation of the head inclination angle θH (see FIG. 8) can be suppressed, so that the driving posture can be stabilized and the steering disturbance can be suppressed.

  In the first embodiment, the plate-like member 6 is disposed so as to be parallel to a straight line connecting the passenger seat head center position P3 and the lower end of the front window glass 1, as shown in FIG. Thus, you may arrange | position so that the straight line which connects the driver's seat head center position P4 and the lower end part of the front window glass 1 may intersect at right angles. According to such a configuration, even when the size of the plate-like member 6 is small, the state of the field of view shown in FIG. 5 can be maintained, and at the same time, the shape of the field of view adjusting portion 10 viewed from the driver can be changed. It is possible to obtain a uniformly shielded shape with a simpler configuration.

  Further, in the first embodiment, the visual field adjustment portion 10 has the shape having the parting line 11 constituted by the vertex T and the left and right ridge lines R1, R2. However, the present invention is not limited to this configuration. In addition, by applying the present invention to the visibility adjusting member 7 used for limiting the downward visibility of a truck or the like as shown in FIG. 9, it is possible to prevent the front vision of the passenger on the passenger seat from being blocked.

  Next, a visual field adjustment method according to the second embodiment of the present invention will be described.

  In the visual field adjustment method according to the second embodiment of the present invention, as shown in FIG. 11, the visual adjustment portion 10 includes (1) a passenger seat head center position P3 and a driver seat head center position P4. (2) Angle (θ °) between the straight line connecting the passenger seat side head center position P3 and the point P5 and the straight line connecting the driver seat head center position P4 and the point P5 with the straight line passing through the vehicle center position P0 Is set at the lower end of the front window glass 1 so that they are equal when viewed from above the vehicle. (3) Between the lower end point P7 and the point P5 of the front window glass 1 in the direction P6 facing the passenger on the passenger seat. (4) If the angle formed by the straight line connecting the passenger seat side head center position P3 and the lower end point P8 and the straight line passing through the vehicle center position P0 is α °, In the region from P8 to the passenger seat side end point P9 of the window frame, there is little Both looked region 8a of ± alpha ° transparency, the angle selectivity visual control body 8 other areas 8b are to appear opaque, is formed.

  Further, the visual adjustment portion 10 is configured so that when the angle between the straight line connecting the driver's seat side head center position P4 and the lower end point P8 and the straight line passing through the vehicle center position P0 is β °, In the region up to the driver seat side end point P10 of the window frame, at least a β ° region in the passenger seat side direction, and at least the driver seat occupant head center position P4 in the driver seat side direction and the driver seat end point P10 at the lower end of the window frame. Is formed by the angle-selective visual control body 8 that appears opaque in an area 8b having an angle formed by a straight line connecting the two and a straight line passing through the vehicle center position P0 and that appears transparent in the other area 8a.

  As is apparent from the above description, according to the visual field adjustment method according to the second embodiment of the present invention, the visual adjustment portion 10 is formed by the angle selective visual control body 8, and this angle selective visual control body. 8 shows the position of the angle-selective visual control body 8 from the driver's seat side (for the sake of convenience, the angle-selective visual control body 8 is transparent when viewed from the passenger seat, as shown in FIG. 13A). Since it is configured to appear transparent from the passenger seat side, as shown in FIG. 13B, only the driver has the effect of the visibility adjustment processing and the effect of the parting line 11 described above. As a result, it is possible to prevent the passenger in the front passenger's seat from feeling troublesome because the front view is blocked.

  Next, a visual field adjustment method according to the third embodiment of the present invention will be described.

  In the visual field adjustment method according to the third embodiment of the present invention, as shown in FIG. 12, the visual adjustment portion 10 is (1) an angle formed with a straight line passing through the driver's facing position P1 is ± 15 °. It is divided into a certain area and other areas. (2) In the area where the angle formed with the straight line passing through the driver's facing position P1 is ± 15 °, the range of ± 15 ° becomes opaque when facing directly The visible visual control film 8b is pasted, and (3) the other regions are formed by pasting the visual control film 8a in which the range of 15 ° to 45 ° looks opaque when facing the front. As the visual control film, a commercially available visual control film such as “Lumisty” manufactured by Sumitomo Chemical Co., Ltd. can be used.

  As is apparent from the above description, according to the visual field adjustment method according to the third embodiment of the present invention, the visual adjustment portion 10 is formed by the visual control film 8, and this visual control film 8 is provided on the driver seat side. From FIG. 13 (a), it appears to be opaque as shown in FIG. 13 (a), while from the passenger seat side, it is configured to appear transparent as shown in FIG. 13 (b). The effect of the parting line 11 can be limited to only the driver, and it can be prevented that the passenger in the front passenger seat feels annoyed by blocking the front view.

  In the second and third embodiments, the visual field adjustment portion 10 is divided into two regions. However, the present invention is not limited to this, and the visual field adjustment portion 10 is divided into two or more regions. Then, the visual adjustment portion 10 may be configured by attaching another angle-selective visual control body (visual control film) 8 to each region.

  In addition, since the visual control film in the third embodiment usually looks like a milky white opaque body in a semi-transparent state, the contrast difference between the front window glass 1 and the visual control film is reduced, resulting in a parting line. 11 may be difficult to recognize. For this reason, by increasing the contrast difference with the front window glass 1 and coloring the visual control film in a semi-transparent gray color so that the parting line 11 is clearly recognized, for example, from an angle region where vision is not controlled. It is desirable to make the visible light transmittance of the visual control film lower than the visible light transmittance of the front window glass 1 when viewed. In this case, as shown in FIG. 14 (a), a method of performing a coloring process on the region 9 of the front window glass on which the visual control film is pasted, and as shown in FIG. The visual control film may be colored by either method of overlapping the film with the visual control film.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the description and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

It is a figure for demonstrating the visual field adjustment method of the vehicle used as the 1st Embodiment of this invention. It is a figure for demonstrating the arrangement | positioning method of a plate-shaped member in the 1st Embodiment of this invention. It is a figure for demonstrating the relationship between the parting line seen from the driver | operator in the 1st Embodiment of this invention, and a front view. It is a figure for demonstrating the relationship between a driver | operator's eyes | visual_axis and the vertex of a parting line in the 1st Embodiment of this invention. In the first embodiment of the present invention, it is a diagram showing the configuration of the visibility adjustment portion when viewed from the passenger seat side and the driver seat side. It is a figure for demonstrating the conventional visibility adjustment method of the vehicle. It is a figure for demonstrating the forward visual field at the time of right turn in the 1st Embodiment of this invention. It is a figure for demonstrating the relationship between the head angle and pendulum angle at the time of vehicle turning in the 1st Embodiment of this invention. It is a figure for demonstrating the application example of the arrangement | positioning method of a plate-shaped member in the 1st Embodiment of this invention. It is a figure for demonstrating the application example of the visual field adjustment method of the vehicle in the 1st Embodiment of this invention. It is a figure for demonstrating the visual field adjustment method of the vehicle in the 2nd Embodiment of this invention. It is a figure for demonstrating the visual field adjustment method of the vehicle in the 3rd Embodiment of this invention. It is a figure which shows a mode when the visual field adjustment part in the 2nd, 3rd embodiment of this invention is seen from the passenger seat side and the driver's seat side. It is a figure for demonstrating the application example of the visual field adjustment method of the vehicle in the 3rd Embodiment of this invention.

Explanation of symbols

1: Front window glass 8: Angle-selective visual control body (visual control film)
6: Plate member 10: Field of view adjustment part 11: Parting line Rl: Left ridge line Rr: Right ridge line T: Vertex

Claims (16)

In a vehicle visibility adjustment method in which a visibility adjustment portion is provided at the lower end of the front window glass so as to adjust the forward visibility by the driver,
The visual field adjustment method for a vehicle, wherein the visual field adjustment part is configured by a louver-like member.   The visibility adjusting portion is arranged with a vertex between the driver facing position and the vehicle center position and at a position offset from the driver, and uniformly descends and slopes from the vertex toward both sides in the vehicle width direction. 2. The vehicle field of view adjustment method according to claim 1, wherein left and right ridge lines are set, and the line is formed as a parting line for adjusting a lower end field of view of the front window glass by the vertex and the left and right ridge lines. In the vehicle field adjustment device that adjusts the forward field of view by the driver by providing a field of view adjustment part at the lower end of the front window glass,
The field of view adjusting device for a vehicle, wherein the field of view adjusting portion is configured by a louver-like member.   The visibility adjusting portion is arranged with a vertex between the driver facing position and the vehicle center position and at a position offset from the driver, and uniformly descends and slopes from the vertex toward both sides in the vehicle width direction. 4. The vehicle field of view adjustment device according to claim 3, wherein left and right ridge lines are set and formed as a parting line for adjusting the lower end field of view of the front window glass by the vertex and the left and right ridge lines. In a vehicle visibility adjustment method in which a visibility adjustment portion is provided at the lower end of the front window glass so as to adjust the forward visibility by the driver,
The visual field adjustment method for a vehicle, wherein the visual field adjustment part is configured by at least two regions, and each region is configured by a different angle selective visual control body.   The visibility adjusting portion is arranged with a vertex between the driver facing position and the vehicle center position and at a position offset from the driver, and uniformly descends and slopes from the vertex toward both sides in the vehicle width direction. 6. The vehicle field of view adjustment method according to claim 5, wherein left and right ridge lines are set and formed as a parting line for adjusting the lower end field of view of the front window glass by the vertex and the left and right ridge lines.   7. The vehicle field of view adjustment method according to claim 5, wherein the angle-selective visual control body is constituted by a visual control film.   The angle-selective visual control body is colored so that the visible light transmittance of the visual field adjustment portion is lower than the visible light transmittance of the front window glass when viewed from an angle region where vision is not controlled. The method of adjusting the field of view of a vehicle according to any one of claims 5 to 7.   The visual field adjustment portion is selected so that the visible light transmittance of the visual field adjustment portion is lower than the visible light transmittance of the front window glass when viewed from an angle region where vision is not controlled by the angle selective visual control body. The visual field adjustment method for a vehicle according to any one of claims 5 to 7, characterized by being configured by superimposing a translucent film on the sexual visual control body.   The front window glass at the portion where the view adjustment portion and the vehicle front window glass are in contact with each other has a visible light transmittance of the front window glass when viewed from an angle region where the vision is not controlled by the angle-selective visual control body. The vehicle visibility adjustment method according to any one of claims 5 to 7, wherein the vehicle is colored so as to be lower than the visible light transmittance. In the vehicle field adjustment device that adjusts the forward field of view by the driver by providing a field of view adjustment part at the lower end of the front window glass,
The visual field adjustment device for a vehicle, wherein the visual field adjustment part is configured by at least two regions, and each region is configured by a different angle selective visual control body.   The visibility adjusting portion is arranged with a vertex between the driver facing position and the vehicle center position and at a position offset from the driver, and uniformly descends and slopes from the vertex toward both sides in the vehicle width direction. 12. The vehicle field of view adjustment device according to claim 11, wherein left and right ridge lines are set and formed as a parting line for adjusting the lower end field of view of the front window glass by the vertex and the left and right ridge lines.   The field of view adjustment device for a vehicle according to claim 11, wherein the angle-selective visual control body is configured by a visual control film.   The angle-selective visual control body is colored so that the visible light transmittance of the visual field adjustment portion is lower than the visible light transmittance of the front window glass when viewed from an angle region where vision is not controlled. The vehicle field of view adjustment device according to any one of claims 11 to 13, wherein the device is a field of view adjustment device for a vehicle.   The visual field adjustment portion is selected so that the visible light transmittance of the visual field adjustment portion is lower than the visible light transmittance of the front window glass when viewed from an angle region where vision is not controlled by the angle selective visual control body. The visual field adjustment device for a vehicle according to any one of claims 11 to 13, characterized by being configured by superimposing a translucent film on the sexual visual control body.   The front window glass at the portion where the view adjustment portion and the vehicle front window glass are in contact with each other has a visible light transmittance of the front window glass when viewed from an angle region where the vision is not controlled by the angle-selective visual control body. It is colored so that it may become lower than visible light transmittance | permeability, The visual field adjustment apparatus of the vehicle of any one of Claims 11-13 characterized by the above-mentioned.