JP2005075188A - View field adjusting method and device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve visibility near a vehicle in an extremely low-speed zone, to increase lighting amount in a cabin, and to enlarge the visible range from an occupant of a front passenger seat. <P>SOLUTION: A view field adjusting section 10 is formed by making visible light transmittance of a region A under left and right ridge lines Rl and Rr lower than that of a region B above the left and right ridge lines Rl and Rr. Thus, a driver and the occupant of the front passenger seat can see the outside through the view field adjusting section 10, and moderate light can be taken into the inside of the cabin. A break line 11 of the view field adjusting section 10 uniformly tilts downwardly from the top T disposed at a position offset from the driver toward both sides in the vehicle width direction, so that the driving attitude of the driver becomes stable to suppress disturbance of steering. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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 specifically, in the vicinity of a vehicle in a very low speed range. The present invention relates to a technique for improving visibility, increasing the amount of light collected in the passenger compartment, and expanding the visible range of the passenger on the passenger seat.

A conventional vehicle visibility adjustment method is known that improves the driving safety by shielding the lower end of the front window glass and adjusting the driver's forward visibility (for example, patents). Reference 1).
Japanese Patent Laid-Open No. 2000-21355 (page 4, FIG. 4)

  However, in such a conventional vehicle visibility adjustment method, the vehicle is configured to adjust the forward visibility by the driver by shielding the lower end portion of the front window glass. When the vehicle is traveling in an extremely low speed range, the driver may feel anxiety because the field of view near the vehicle is blocked.

  Furthermore, in such a conventional vehicle field of view adjustment method, the amount of light collected in the passenger compartment is reduced because the front view by the driver is adjusted by shielding the lower end of the front window glass. In some cases, the passenger in the passenger seat may feel annoyed by the view of the passenger in the passenger seat being obstructed.

  The present invention has been made to solve the above-described problems, and its purpose is to improve visibility in the vicinity of the vehicle in an extremely low speed range, increase the amount of light extraction, and expand the visible range of the passenger on the passenger seat. It is an object of the present invention to provide a vehicle visual field adjustment method and apparatus capable of performing the above-mentioned.

  In order to solve the above-described problem, the vehicle visibility adjustment method according to the present invention is characterized in that the visible light transmittance of the visibility adjustment portion formed at the lower end portion of the front windshield is higher than the visible light transmittance of the front windshield. There is to lower.

  Further, in order to solve the above-mentioned problems, a feature of the vehicle visual field adjustment device according to the present invention is that the visible light transmittance of the visual field adjustment portion formed at the lower end portion of the front window glass is the visible light transmittance of the front window glass. Is to make it lower.

  According to the vehicle visibility adjusting method and apparatus according to the present invention, the visibility adjusting portion has a visible light transmittance lower than that of the front window glass, and does not completely shield light entering the vehicle interior. The seat occupant can see the outside of the vehicle through the view adjustment part, and can take appropriate light into the passenger compartment. That is, it is possible to improve the visibility in the vicinity of the vehicle in the extremely low speed range, increase the amount of light extraction, and expand the visible range of the passenger on the passenger seat.

  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 portion 10 at the lower end portion of the front window glass 1, and the forward visual field by the driver is adjusted by the visual field adjustment portion 10. Is configured to do. 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 apex T toward both sides in the vehicle width direction are set. (3) The visible light transmittance of the area A below the left and right ridgelines Rl and Rr is set to the upper area B. Is formed by forming the parting lines 11 corresponding to the left and right ridgelines Rl and Rr by the difference in contrast between the region A and the region B. 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.

  Further, as shown in FIG. 2, the vertex T is the right and the vertex T of the driver M in the turning posture when turning right in the case of a right-hand drive vehicle (when turning left in the case of a left-hand drive vehicle). Are arranged so that the line of sight connecting the line and the outside is outside the turning oblique line Lout. Further, as shown in FIG. 3, when the maximum angle of inclination formed by the ridge line on the driver M side, that is, the right ridge line Rr for the right-hand drive vehicle and the left ridge line Rl for the left-hand drive vehicle is the horizontal line is θ1, θ2, The magnitude of θ2 is set to be larger than the roll angle θR of the vehicle.

  Further, the visible light transmittance of the region A is set to be 50% or less of the visible light transmittance of the region B as shown in FIG. Generally, the visible light transmittance of the transparent glass used for the front window glass 1 is about 70 to 80%. Therefore, by setting the visible light transmittance of the region A to 50% or less of the visible light transmittance of the region B, the parting line 11 can be formed by the contrast difference between the region A and the region B. Further, if the visible light transmittance of the region A is about 50% or less, the visibility is not completely blocked unlike the privacy glass used for the rear window glass. 10 can be seen outside the vehicle.

  The visible light transmittance of the region A can be adjusted by coloring the front window glass 1 or attaching a pattern such as a dot or a mesh to the front window glass 1. More specifically, the visible light transmittance of the region A can be adjusted by painting the front and back surfaces of the front window glass 1 or sandwiching a film inside the front window glass 1. In addition, as shown in FIG. 5, the visible light transmittance of the region A may be adjusted by attaching a film or a plate to the back surface of the front window glass 1 from the vehicle interior side. Further, the visible light transmittance of the region A may be adjusted using a half mirror that does not transmit light from outside the vehicle. Moreover, you may adjust the visible light transmittance | permeability of the area | region A using the light control glass from which a transmittance | permeability changes according to the intensity | strength of an ultraviolet-ray.

  As is apparent from the above description, in the field of view adjustment method according to the first embodiment of the present invention, the parting line 11 of the field of view adjustment portion 10 provided at the lower end of the front window glass 1 is offset from the driver. From the apex T arranged at the position, it is inclined downwardly and 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 accordingly, the steering is disturbed. This disturbance of steering promotes the fluctuation of the turning lateral acceleration and makes the head tilt angle more unstable. Will give birth.

  On the other hand, in the vehicle field of view adjustment method according to the first embodiment of the present invention, as described above, the parting line 11 is directed from the apex T arranged at a position offset from the driver toward both sides in the vehicle width direction. Since it is uniformly inclined downward, as shown in FIG. 7, it becomes possible to suppress the inclination of the front field of view by this inclined parting line 11, and as a result, the head inclination angle θH during turning (see FIG. 8). Thus, the driving posture can be stabilized and the steering disturbance can be suppressed.

  Further, according to the visual field adjustment method according to the first embodiment of the present invention, the visual field adjustment portion 10 sets the visible light transmittance of the region A below the left and right ridge lines Rl and Rr above the left and right ridge lines Rl and Rr. Therefore, the driver and the passenger on the front passenger seat can see through the outside of the vehicle through the field of view adjustment portion 10 and take appropriate light into the vehicle interior. be able to. Further, even if the engine hood 6 is a parting line as shown in FIG. 9, the driver and the passenger on the front passenger seat can visually observe the vehicle body via the visibility adjusting portion 10. In addition, it is possible to prevent the driver and the passenger on the passenger's seat from feeling tired by suppressing the contrast of the road surface texture and seeing the vicinity of the vehicle body too much. In addition, when the driver does not gaze at the visual field adjustment part 10 such as when turning, the visual field adjustment part 10 can give the driver the same impression as when the visual field adjustment part 10 is completely shielded. 11 can be given to the driver.

  Furthermore, according to the visual field adjustment method according to the first embodiment of the present invention, the parting line 11 is formed by the contrast difference between the area A and the area B, so that the parting line can be obtained without changing the visible light transmittance. Compared with the case where only 11 is presented, the design of the vehicle can be changed.

  In addition, according to the visibility adjustment method according to the first embodiment of the present invention, the visible light transmittance of the region A is adjusted using a half mirror that does not transmit light from outside the vehicle. Can be improved.

  In addition, according to the visibility adjustment method according to the first embodiment of the present invention, the visible light transmittance of the region A is adjusted using a light control glass whose transmittance changes according to the intensity of ultraviolet rays. The visible light transmittance can be uniformly changed according to the increase or decrease of the amount of ultraviolet rays, and the contrast difference between the region A and the region B can be made constant.

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

  As shown in FIG. 10, the visibility adjustment method according to the second embodiment of the present invention is such that the visible light transmittance in the region A below the left and right ridge lines Rl and Rr reduces glare of the occupant. It is configured to change intermittently or continuously like the top shade of the front window glass used. However, in general, the top shade is provided at the upper end portion of the front window glass and is configured to increase the visible light transmittance uniformly toward the occupant. It is not always necessary to change the direction of the top shade.

  In this case, it is desirable that the visible light transmittance of the region A is configured such that the visible light transmittance at the lowermost end is the highest as shown in FIG. According to such a configuration, the driver can visually observe the vehicle body via the visibility adjustment portion 10, and therefore, when the vehicle is traveling in a very low speed range, such as when entering the garage or when passing through, the driver There is no feeling of anxiety. Further, in a vehicle in which the vehicle body cannot be seen, the parting line 11 can be presented while ensuring the visibility in the vicinity of the vehicle.

  Further, as shown in FIGS. 11 to 14, the visible light transmittance of the region A may be configured to change along the vertical direction with respect to the left and right ridge lines Rl and Rr. Here, each of FIGS. 11 to 14 is configured such that the visible light transmittance of the region A increases as the distance from the left and right ridgelines Rl and Rr increases, and the visible light transmittance of the region A decreases as the distance from the left and right ridgelines Rl and Rr increases. The structure having a distribution state in which the visible light transmittance of the region A has a downward peak (minimum value) along the vertical direction with respect to the left and right ridge lines Rl and Rr, and the visible light transmittance of the region A is the left and right ridge lines Rl and Rr. FIG. 5 shows a configuration having a distribution state having an upward peak (maximum value) along the vertical direction. The visible light transmittance at the left and right ridgelines Rl and Rr is desirably 50% or less.

  Further, as shown in FIGS. 15 to 18, the visible light transmittance of the region A may be configured to change along the vertical direction of the region A. 15 to 18 are configurations in which the visible light transmittance of the region A increases from the upper end to the lower end, configurations in which the visible light transmittance of the region A decreases from the upper end to the lower end, and A configuration having a distribution state in which the visible light transmittance has a downward peak (minimum value) in the vertical direction, and a configuration having a distribution state in which the visible light transmittance in the region A has an upward peak (maximum value) in the vertical direction. Show. In this case, the visible light transmittance at the upper end is preferably 50% or less.

  Further, as shown in FIGS. 19 to 22, the visible light transmittance of the region A may be changed along the left-right direction of the region A. Here, FIG. 19 to FIG. 22 are configurations in which the visible light transmittance of the region A increases from the left end to the right end, configurations in which the visible light transmittance of the region A decreases from the left end to the right end, and A configuration having a distribution state in which the visible light transmittance has a downward peak (minimum value) in the left-right direction, and a configuration having a distribution state in which the visible light transmittance in the region A has an upward peak (maximum value) in the left-right direction. Show. In this case, the visible light transmittance at the left and right ends is desirably 50% or less.

  Even when the visible light transmittance at the end of the region A is 50% or more, the visible light transmittance of the region A is changed stepwise as shown in FIG. The parting line 11 can be formed by an equitransmittance curve indicating the same region. According to such a configuration, the visible light transmittance can be lowered in a range wider than the region A than the transparent portion (region B) of the front window glass 1.

  As is clear from the above description, according to the visual field adjustment method according to the second embodiment of the present invention, the visible light transmittance of the visual field adjustment portion 10 changes intermittently or continuously. The visibility of the driver and the passenger on the front passenger seat can be partially controlled to reduce blind spots such as the front fender.

  In addition, according to the visual field adjustment method according to the second embodiment of the present invention, the visible light transmittance of the region A changes intermittently or continuously so that the left and right ridge lines Rl and Rr are clearly shown. Therefore, the visible light transmittance can be changed without losing the visibility adjustment effect, and the design of the vehicle can be changed.

  Further, according to the visibility adjusting method according to the second embodiment of the present invention, the visible light transmittance in the region A is configured so that the visible light transmittance at the lowest end is the highest, and the driver adjusts the visibility. Since the vehicle body can be visually observed through the portion 10, the driver does not feel uneasy when the vehicle is traveling in a very low speed region, such as when entering the garage or when passing through. Further, in a vehicle in which the vehicle body cannot be seen, the parting line 11 can be presented while ensuring the visibility in the vicinity of the vehicle.

  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 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. It is a figure which shows the visible light transmittance | permeability of the visual field adjustment part in the 1st Embodiment of this invention. It is a figure for demonstrating the formation method of the visual field adjustment part in the 1st Embodiment of this invention. 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 which shows the visual field adjustment part used as the 1st Embodiment of this invention in the vehicle in which the engine hood becomes a parting line. It is a figure for demonstrating the visual field adjustment method of the vehicle used as the 2nd Embodiment of this invention. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes high as it distances from a right-and-left ridgeline. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes low as it distances from a right-and-left ridgeline. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance has a distribution state which has a downward peak (minimum value) along a perpendicular direction with respect to a right-and-left ridgeline. . In the 2nd Embodiment of this invention, it is a figure which shows the structure of a visual field adjustment part in case visible light transmittance has a distribution state which has an upward peak (maximum value) along a perpendicular direction with respect to a right-and-left ridgeline. . In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes high toward a lower end from an upper end. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes low toward an end from an upper end. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case the visible light transmittance | permeability has a distribution state which has a downward peak (minimum value) in an up-down direction. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case the visible light transmittance | permeability has a distribution state which has an upward peak (maximum value) in an up-down direction. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes high toward the right end from the left end. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case visible light transmittance becomes low toward a right end from a left end. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case the visible light transmittance | permeability has a distribution state which has a downward peak (minimum value) in the left-right direction. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in case the visible light transmittance | permeability has a distribution state which has an upward peak (maximum value) in the left-right direction. In the 2nd Embodiment of this invention, it is a figure which shows the structure of the visual field adjustment part in the case of forming a parting line by an equal transmittance curve.

Explanation of symbols

1: Front window glass 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 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. A vehicle field of view adjustment method comprising: setting left and right ridge lines and lowering visible light transmittance in a region below the right and left ridge lines to be lower than visible light transmittance in an upper region.   The vehicle visibility adjustment method according to claim 1, wherein the visible light transmittance of the lower region changes intermittently or continuously in the region.   The vehicle visibility adjustment method according to claim 1, wherein the lower region does not transmit light from outside the vehicle.   The vehicle visual field adjustment method according to any one of claims 1 to 3, wherein the visible light transmittance of the lower region changes in accordance with light intensity.   The visible light transmittance of the lower region is intermittently or continuously changed so that the visible transmittance of the lowermost end portion is the highest, among the claims 1 to 4, The vehicle field of view adjustment method according to any one of the preceding claims.   The visible light transmittance of the lower region changes intermittently or continuously along a direction perpendicular to the left and right ridge lines. The vehicle field of view adjustment method according to claim 1.   The visible light transmittance of the lower region changes intermittently or continuously along the left-right direction of the lower region, according to any one of claims 1 to 4. The vehicle field of view adjustment method described.   The visible light transmittance of the lower region changes intermittently or continuously along the vertical direction of the lower region, according to any one of claims 1 to 4. The vehicle field-of-view adjustment method described. 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 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. A vehicle field of view adjustment device, characterized in that it is formed by setting left and right ridge lines and lowering the visible light transmittance in the region below the left and right ridge lines to be lower than the visible light transmittance in the upper region.   The visual field adjustment device for a vehicle according to claim 9, wherein the visible light transmittance of the lower region changes intermittently or continuously in the region.   The vehicle visibility adjusting device according to claim 9 or 10, wherein the lower region does not transmit light from outside the vehicle.   The visual field adjustment device for a vehicle according to any one of claims 9 to 11, wherein the visible light transmittance of the lower region changes according to light intensity.   The visible light transmittance of the lower region is intermittently or continuously changed so that the visible transmittance of the lowermost end portion is highest, among the claims 9 to 12, The vehicle field of view adjustment device according to any one of the preceding claims.   The visible light transmittance of the lower region is intermittently or continuously changed along a direction perpendicular to the left and right ridge lines. The vehicle field of view adjustment device according to claim 1.   The visible light transmittance of the lower region changes intermittently or continuously along the left-right direction of the lower region, according to any one of claims 9 to 12. The field-of-view adjustment device for vehicles as described.   The visible light transmittance of the lower region changes intermittently or continuously along the vertical direction of the lower region, according to any one of claims 9 to 12. The field-of-view adjustment device for vehicles as described.