JP2006103465A - Anti-dazzling device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily adjust a position of polarization means according to a position of a light source, adjust transmissibity of light and easily respond to light sources not only on a front window side of the vehicle but also on a side window side. <P>SOLUTION: A right end of a guide rail 15 of the anti-dazzling device 10 for the vehicle is supported on one end of a fixing member 11 through a rotatable bearing 17 and the device has a suction cup 18 at left end. A slider 20 is provided on the guide rail 15 slidably in a lateral direction and the polarization means is provided on the slider 20. An angle of the guide rail 15 is adjusted according to a position of a light source (sun), a position of the slider 20 is adjusted and light transmissibity of the polarization means is adjusted by an operation knob 26. The guide rail 15 is turnable to a front window 1 side and the side window 2 side taking the rotatable bearing 17 as a center. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle antiglare device capable of controlling the transmittance of light incident through a window in a vehicle.

  In vehicles such as automobiles, the driver often suffers from driving because of the glare caused by direct sunlight (light source). In order to avoid such direct sunlight, a sun visor is disposed on the inner upper part of the front window in an automobile.

  This sun visor is configured in a plate shape with an opaque material, and is manually lowered to the front window side when the driver feels sunlight dazzling. However, when the sun visor is lowered, the upper side view in the front window is obstructed by the sun visor, so the driver will not feel dazzling because the direction of travel of the car changes. Immediately wants to return the sun visor to its original position. As a result, for example, when driving a car during a time when the western sun is pointing, there is a problem that the sun visor is frequently raised and lowered, and the driver's attention is lost.

In order to solve such a problem, in Patent Document 1, the other polarizing film is pivotally overlapped and supported on one polarizing film, and a suction disk is provided on the back surface. The vehicle is mounted on the inner surface of the windshield (front window) of the car in a fixed state so that the user can adjust the transmittance (polarization degree) of incident light by rotating one polarizing film. An awning is disclosed. In Patent Document 2, a window is provided in a part of an automobile sun visor, a pair of polarizing plates is attached to the window, and one polarizing plate is rotated manually or by a motor via a belt or gear. Thus, there is disclosed a device that can adjust the light transmittance.
Japanese Utility Model Publication No. 7-28717 Registered Utility Model No. 3054331

  In the technique disclosed in Patent Document 1, when the installation position of the vehicle awning is an appropriate position (when the vehicle awning is located on the line connecting the driver's eyes and the sun as the light source) ) Ensures good visibility by adjusting the light transmittance. However, if the mounting position is not appropriate (when the sunshade is not on the line connecting the driver's eyes and the sun), it is not possible to prevent glare. There is a problem that it must be removed from the front window to change the mounting position.

  Moreover, in the technique disclosed in Patent Document 2, since the polarizing plate is provided in the sun visor, the vertical position of the sun visor is adjusted to cope with the difference in the vertical position of the sun. However, there is a problem in that it cannot cope with a difference in position in the horizontal direction (left-right direction). Moreover, it cannot cope with the light from the side window side.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to easily adjust the position of the polarizing means according to the position of the light source, and also to adjust the light transmittance, An object of the present invention is to provide an antiglare device for a vehicle that can easily cope with a light source on the side of the side window as well as the front window.

  In order to achieve the above-described object, an antiglare device for a vehicle according to the present invention includes a base member disposed on an inner upper portion of a front window in a vehicle, a slider provided on the base member so as to be slidable in a lateral direction, Two polarizing members arranged opposite to each other are provided on the slider, and the transmittance of incident light is changed by rotating at least one polarizing member of the two polarizing members. Polarization means for changing, and the base member is configured to be rotatable about a rotation center of one end portion of the base member to a front window side of the vehicle and a side window side adjacent thereto. Features.

  In this case, it is preferable to provide the holding means at the free end on the side opposite to the rotation center of the base member.

  According to the present invention, by adjusting the horizontal position of the slider provided with the polarization unit according to the position of the light source, the position of the polarization unit can be positioned at an appropriate position with respect to the light source. Then, the transmittance of incident light can be controlled by rotating one polarizing member of the polarizing means and adjusting its rotational position. Further, since the base member can be rotated to the front window side and the side window side, it is possible to easily cope with the light source on the side window side as well as the front window side.

A first embodiment of the present invention will be described below with reference to FIGS.
First, FIG. 1 shows a schematic view of a front window 1 and a side window 2 as viewed from the driver's seat of an automobile that is a vehicle. An existing sun visor 4 is provided on the ceiling 3 at the inner upper part of the front window 1. The sun visor 4 is made of an opaque material, and is provided so as to be rotatable in the vertical direction about the shaft 5. The right end portion of the shaft 5 is supported so as to be able to turn in the lateral direction around the turning portion 7 with respect to the stay 6 fixed to the ceiling portion 3.

  And the anti-glare device 10 for vehicles of this invention becomes a structure provided with respect to the said sun visor 4 so that attachment or detachment is possible. The fixing member 11 of the vehicle anti-glare device 10 extends in the lateral direction (left-right direction), has a spherical portion 12 (see FIG. 2) at the right end in the figure, and has a rectangular shape at the left end. A flat portion 13 is provided. Two clips 14 having a substantially U-shape are attached to the fixing member 11 so as to be relatively rotatable, and these clips 14 are detachably attached to the sun visor 4. The fixing member 11 is supported so as to be rotatable with respect to the clip 14.

  The guide rail 15 constituting the base member has a rectangular plate shape that is long in the lateral direction, and is formed of a transparent material. The right end of the guide rail 15 in FIG. 1 has a fitting portion 16 fitted so as to surround the spherical portion 12, and the guide rail 15 is rotatable around the spherical portion 12. It is supported. The spherical portion 12 and the fitting portion 16 constitute a rotatable bearing 17, and this rotatable bearing 17 constitutes the rotation center of the right end portion in FIG. 1 that is one end portion of the guide rail 15. A suction cup arm 19 having a suction cup 18 constituting a holding means is attached to the left end portion of the guide rail 15 so as to be rotatable in the vertical direction about a shaft 19a. By attracting the suction cup 18 to the flat surface portion 13 of the fixing member 11, the left end portion which is the free end portion of the guide rail 15 is held by the fixing member 11.

  A slider 20 is attached to the guide rail 15. As shown in FIG. 4, the slider 20 includes a rear slider body 21 and a circular cover 22 attached to the front surface of the slider body 21. A hook portion 23 is formed at the upper part on the back side of the slider body 21, and the hook portion 23 is hooked on the guide rail 15 so as to be slidable in the lateral direction which is the longitudinal direction of the guide rail 15. In this case, the slider main body 21 and the cover 22 are formed of a transparent member.

  As shown in FIG. 4, a film-like polarizing film 24 constituting the polarizing member is fixed to the inner surface of the cover 22 by adhesion or the like. And on the back side of the polarizing film 24, a plate-like movable polarizing plate 25 constituting a polarizing member is rotatably arranged in a state of facing the polarizing film 24. The movable polarizing plate 25 is provided with an operation knob 26, and this operation knob 26 protrudes forward (driver side) through an arc-shaped slit 27 formed in the polarizing film 24 and the cover 22. By grasping the operation knob 26 and rotating the movable polarizing plate 25, the transmittance of light passing through the polarizing film 24 and the movable polarizing plate 25 is changed. These polarizing film 24 and movable polarizing plate 25 constitute polarizing means 28.

  In this case, in the state where the operation knob 26 is positioned at the left end portion of the slit 27 in FIG. 1, the polarization means 28 is parallel to each other and the light transmittance is high. As the position is shifted to the right side, the polarization directions become orthogonal to each other, and the light transmittance becomes lower and darker.

Next, the operation of the above configuration will be described.
When the driver feels dazzled by the light of the sun (light source) shining from the front window 1 side, the guide rail 15 is rotated so that the guide rail 15 is positioned below the sun visor 4 as shown by the solid line in FIG. In accordance with the position of the sun, the vertical angle of the guide rail 15 is adjusted by rotating together with the fixing member 11, and the horizontal position of the slider 20 is adjusted. It should be on a line connecting the driver's eyes. Then, the movable knob 25 is rotated by operating the operation knob 26 to control the light transmittance. Thereby, the driver | operator can avoid the glare of sunlight and can ensure a visual field. At this time, the guide rail 15 is held in a stable state at the left end portion, which is the free end side of the guide rail 15, by adsorbing the suction cup 18 to the flat surface portion 13 of the fixing member 11. In this case, since the guide rail 15 and the slider 20 have a transparent configuration, it is possible to minimize the blockage of the field of view with these.

  On the other hand, if the driver feels dazzled by the sunlight shining from the right side window 2 side, the suction of the suction cup 18 to the flat surface portion 13 is removed, and then the guide rail 15 is moved to the right end rotatable bearing. 17 is rotated to the side window 2 on the right side with reference to the rotation center 17 (see arrow A1 in FIG. 1, two-dot chain line), and the suction cup arm 19 is turned downward about the shaft 19a, and the suction cup 18 is moved to the side. Adsorb directly to window 2. And the position of the slider 20 is adjusted according to the position of the sun. Thereby, a driver | operator can avoid the glare of light also with respect to the sunlight which shines from the right side window 2 side.

  When the vehicle anti-glare device 10 is not used, the guide rail 15 is rotated toward the front window 1 as shown by the solid line in FIG. Then, it is rotated upward so as to be flipped up so as to be superposed on the existing sun visor 4.

According to the above-described embodiment, the following operational effects can be obtained.
By adjusting the horizontal position of the slider 20 provided with the polarization means 28 according to the position of the light source (sun), the position of the polarization means 28 can be positioned at an appropriate position with respect to the light source. The transmittance of incident light can be controlled by rotating one movable polarizing plate 25 of the polarizing means 28 and adjusting the rotation position. Further, since the guide rail 15 constituting the base member can be rotated to the front window 1 side and the side window 2 side, not only the front window 1 side but also the light source on the side window 2 side is supported. However, it can be easily handled.

  Since the suction cup 18 constituting the holding means is provided at the left end portion, which is the free end side of the guide rail 15, by sucking the suction cup 18 to the flat portion 13 or the side window 2 of the fixing member 11, The guide rail 15 can be held in a stable state. In this case, the holding means is not limited to the suction cup 17 and may be a hook.

  The center of rotation of the guide rail 15 is constituted by a rotatable bearing 17 including a spherical portion 12 and a fitting portion 16 fitted to the spherical portion 12, so that the guide rail 15 is not only in the lateral direction but also in the spherical portion 12. It can be rotated in various directions along the spherical surface, further improving usability.

  FIGS. 5 to 8 show a second embodiment of the present invention. This second embodiment differs from the first embodiment described above in the following points. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment, description is abbreviate | omitted, and a different part is demonstrated.

  As shown in FIGS. 5 and 6, the fixing member 31 of the vehicle anti-glare device 30 is fixed to a side pillar 32 between the front window 1 and the side window 2. A fitting member 33 having a fitting portion 16 of the rotatable bearing 17 is attached to the side pillar 32 with a screw 34. As shown in FIG. 7, an arm 36 having a spherical portion 12 is rotatably provided on a right end portion of the guide rail 35 constituting the base member via a shaft 37, and the spherical portion 12 is fitted to the fitting portion. 16 is rotatably fitted. A suction arm 19 having a suction cup 18 is attached to the left end of the guide rail 35 so as to be rotatable about a shaft 19a. Further, a slit 38 extending in the lateral direction is formed on the upper portion of the guide rail 35, and the hook portion 23 on the upper side of the slider 20 is hooked on the slit 38. Therefore, the slider 20 is attached so as to be slidable in the lateral direction along the slit 38. The slider 20 is provided with polarizing means 28 (see FIG. 4). The guide rail 35 is formed of a transparent member.

  In the above configuration, when the driver feels dazzled by the light of the sun (light source) emitted from the front window 1 side, the suction cup 18 at the left end of the guide rail 35 is moved to the front window as shown by the solid line in FIG. 1 is used in the same manner as in the first embodiment while directly adsorbed on the inner surface of the first embodiment.

  Further, when the driver feels dazzling by the sunlight shining from the right side window 2 side, the suction of the suction cup 18 to the front window 1 is removed, and then the guide rail 35 is moved to the right end rotatable bearing. 17 is turned to the side window 2 on the right side (see the two-dot chain line in FIG. 5), and the suction cup arm 19 is turned downward about the shaft 19a. It is used in the same manner as in the first embodiment while directly adsorbed.

  When the vehicle anti-glare device 30 is not used, the guide rail 35 is rotated to the front window 1 side as shown by the solid line in FIG. It is made to rotate upward so that the whole is flipped up around the center.

  In such a second embodiment, the same operational effects as those of the first embodiment can be obtained.

The 1st Embodiment of this invention is shown, The figure of the anti-glare device vicinity for vehicles seen from the driver's seat side Right side view of the main part shown with a part Left side view 1 is an enlarged vertical side view of the main part along line XX in FIG. FIG. 1 equivalent diagram showing a second embodiment of the present invention Cross-sectional plan view showing mounting state of fixing member Longitudinal front view of main parts Fracture left side view showing mounting state of vehicle anti-glare device

Explanation of symbols

In the drawings, 1 is a front window, 2 is a side window, 4 is an existing sun visor, 10 is a vehicle anti-glare device, 12 is a spherical portion, 14 is a clip, 15 is a guide rail (base member), and 16 is a fitting , 17 is a rotatable bearing (rotation center), 18 is a suction cup (holding means), 20 is a slider, 24 is a polarizing film (polarizing member), 25 is a movable polarizing plate (polarizing member), 28 is a polarizing means, 30 Denotes a vehicle anti-glare device, 31 denotes a fixing member, and 35 denotes a guide rail (base member).

Claims (3)

A base member disposed on an inner upper portion of a front window in a vehicle;
A slider provided on the base member so as to be slidable in the lateral direction;
Two polarizing members arranged opposite to each other are provided on the slider, and the transmittance of incident light is changed by rotating at least one polarizing member of the two polarizing members. Polarization means for changing,
An anti-glare device for a vehicle characterized in that the base member is configured to be rotatable about a rotation center at one end thereof to a front window side of the vehicle and a side window side adjacent thereto. .   The vehicular antiglare device according to claim 1, wherein holding means is provided at a free end of the base member opposite to the rotation center. The antiglare device for a vehicle according to claim 1, wherein the rotation center includes a spherical portion and a fitting portion that is fitted so as to surround the spherical portion.

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