JP6031351B2 - Mirror device for vehicle - Google Patents

Description

  The present invention relates to a vehicle mirror device in which a mirror surface angle of a vehicle mirror is adjusted.

  In the side mirror described in the following Patent Document 1, the mirror surface is tilted and the angle of the mirror surface is adjusted by displacing the nut adjustment. Further, the nut adjustment is connected to the rotary variable resistor by the belt, and the nut adjust is displaced and the belt is moved, so that the rotary variable resistor detects the moving position of the belt, and the mirror surface An angle is detected.

  However, with this side mirror, there is a possibility that the belt may sag when the belt is moved to the rotary variable resistor side, which prevents the belt from moving properly due to the displacement of the nut adjustment, and the angle of the mirror surface. May not be detected properly.

JP 2006-96146 A

  In view of the above fact, an object of the present invention is to obtain a vehicle mirror device that can appropriately detect the mirror angle of a mirror.

The vehicle mirror device according to claim 1 is provided with a mirror provided in the vehicle, a displacement member that adjusts the mirror surface angle of the mirror by being displaced, a string, and has flexibility. A detecting member that is in communication with the displacement member and that is moved when the displacement member is displaced; and a detecting means for detecting the mirror surface angle of the mirror by detecting the moving position of the connecting member by contacting the connecting member. And guide means for guiding the movement of the connecting member when the displacement member is moved to the connecting member side, the displacement resistance of the displacement member to the connecting member side being communicated by the displacement member It is larger than the displacement resistance to the opposite side of the member .

  In the vehicle mirror device according to the first aspect, the mirror surface angle of the mirror is adjusted by displacing the displacement member. Further, the communication member is communicated to the displacement member, and the communication member is communicated to the detection means. When the displacement member is displaced and the communication member is moved, the detection means detects the movement position of the communication member. Thus, the mirror surface angle of the mirror is detected.

  By the way, the connecting member has flexibility.

  Here, when the displacement member is moved to the connecting member side, the guiding means guides the movement of the connecting member. For this reason, the slack of the connecting member can be suppressed, the connecting member can be appropriately moved by the displacement of the displacement member, and the mirror surface angle of the mirror can be detected appropriately.

Further , the connecting member is formed in a string shape. For this reason, the installation freedom degree of a connection member can be enlarged, and a design freedom can be enlarged.

Furthermore , the displacement resistance of the displacement member toward the connecting member is made larger than the displacement resistance of the displacement member toward the opposite side of the connecting member. For this reason, the pulling means pulls the displacement member toward the detecting means via the connecting member, whereby the displacement member can be easily displaced toward the connecting member.

It is sectional drawing (1-1 sectional view taken on the line of FIG. 2) which looked at the mirror surface adjustment apparatus in the door mirror apparatus for vehicles which concerns on 1st Embodiment of this invention from the downward direction. It is the front view seen from the vehicles back which shows the mirror surface adjusting device in the door mirror device for vehicles concerning a 1st embodiment of the present invention. It is the front view seen from the vehicles back which shows the case etc. of the mirror surface adjustment device in the door mirror device for vehicles concerning a 1st embodiment of the present invention. It is sectional drawing (1-1 line position sectional drawing of FIG. 2) seen from the bottom which shows the mirror surface adjustment apparatus in the door mirror apparatus for vehicles which concerns on 2nd Embodiment of this invention. It is sectional drawing (1-1 line position sectional drawing of FIG. 2) seen from the lower part which shows the mirror surface adjustment apparatus in the door mirror apparatus for vehicles which concerns on 3rd Embodiment of this invention.

[First Embodiment]
FIG. 1 is a cross-sectional view (a cross-sectional view taken along line 1-1 in FIG. 2) of a main part of a vehicle door mirror device 10 according to the first embodiment to which the vehicle mirror device of the present invention is applied. FIG. 2 is a front view of the main part of the vehicle door mirror device 10 as viewed from the rear of the vehicle. Furthermore, FIG. 3 shows a part of the main part of the vehicle door mirror device 10 in a front view as seen from the rear of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, one side in the vehicle width direction is indicated by an arrow WO, and the upper side is indicated by an arrow UP.

  The vehicle door mirror device 10 according to the present embodiment is installed on a vehicle door, and a mirror surface angle adjusting device 12 is provided inside the vehicle door mirror device 10.

  As shown in FIGS. 1 to 3, the mirror surface angle adjusting device 12 includes a substantially hemispherical container-like case 14 that constitutes a holding body. The case 14 is fixed inside the vehicle door mirror device 10, and the central axis of the case 14 is arranged in parallel to the vehicle front-rear direction. The vehicle rear side surface of the case 14 is opened, and the vehicle front side wall of the case 14 is a circular flat bottom wall.

  Inside the case 14, a container-like case inner 16 constituting a holding body is fixed on the bottom wall, and the vehicle front side surface of the case inner 16 is opened.

  A pair of motors 18 as drive means is provided in the case 14, and the motors 18 are fixed between the bottom wall of the case 14 and the vehicle rear side wall of the case inner 16. A worm 20 is fixed to the output shaft of the motor 18.

  A pair of substantially cylindrical wheel drives 22 as engaging members are provided in the case 14, and the wheel drives 22 are arranged around the axis between the bottom wall of the case 14 and the vehicle rear side wall of the case inner 16. It is supported rotatably. Further, the inside of the wheel drive 22 is opened to the vehicle front side of the case 14 through the bottom wall of the case 14, and is opened to the vehicle rear side of the case inner 16 through the vehicle rear side wall of the case inner 16.

  A worm wheel 22 </ b> A is formed in the wheel drive 22, and the worm wheel 22 </ b> A is engaged (engaged) with the worm 20 of the motor 18. Therefore, when the motor 18 is driven and the worm 20 is rotated, the worm wheel 22A is rotated and the wheel drive 22 is rotated.

  The wheel drive 22 is integrally formed with a predetermined number (four in this embodiment) of engaging claws 22B as engaging portions, and the predetermined number of engaging claws 22B are equally spaced in the circumferential direction of the wheel drive 22. Has been placed. The meshing claw 22 </ b> B extends from the wheel drive 22 to the vehicle rear side and has elasticity, and the tip (vehicle rear side end) of the meshing claw 22 </ b> B protrudes radially inward of the wheel drive 22. .

  A substantially cylindrical rod drive 24 serving as a displacement member is coaxially inserted in the wheel drive 22. The rod drive 24 protrudes from the case inner 16 toward the rear of the vehicle and rotates around its axis. It is regulated. One rod drive 24 is arranged above (or may be below) the central axis of the case 14, and the other rod drive 24 is one of the central axes of the case 14 in the vehicle width direction (or the other in the vehicle width direction). Is arranged.

  The portion other than the tip end portion (vehicle rear side end portion) of the rod drive 24 is a screw 24A, and the tip of the meshing claw 22B of the wheel drive 22 is meshed (engaged) with the screw 24A. For this reason, when the wheel drive 22 (including the meshing claw 22B) is rotated as described above, the meshing position with the screw 24A at the tip of the meshing claw 22B is displaced, and the rod drive 24 is moved in the vehicle longitudinal direction (axial direction). Is displaced.

  A mirror holder 26 that constitutes a rotating body is provided on the rear side of the case 14. The mirror holder 26 is formed with a substantially disc-shaped holder portion 26A, and the mirror holder 26 is held by the case inner 16 so as to be rotatable (tilted or displaced) at the center of the holder portion 26A. The holder portion 26A rotatably holds the tip end portion (vehicle rear side end portion) of the rod drive 24, and the mirror holder 26 is rotated by the rod drive 24 being displaced in the vehicle front-rear direction as described above. Moved.

  A rotating wall 26B having a substantially hemispherical wall shape is integrally formed on the vehicle front side surface of the holder portion 26A, and the vehicle front side surface of the rotating wall 26B is opened. The rotating wall 26 </ b> B is disposed on the inner peripheral side of the side wall (a peripheral wall other than the bottom wall) of the case 14, and the vehicle front side end of the rotating wall 26 </ b> B is in contact with the side wall of the case 14. For this reason, as the mirror holder 26 is rotated as described above, the front end of the rotating wall 26 </ b> B is slid on the side wall of the case 14. Note that a lubricant (grease) is applied to the inner peripheral side of the side wall of the case 14 and the outer peripheral side of the rotating wall 26 </ b> B, so that the vehicle front side end of the rotating wall 26 </ b> B has a resistance to slide on the side wall of the case 14. It is lowered by the lubricant.

  A mirror portion 28 constituting a rotating body is held on the rear side of the vehicle in the holder portion 26A of the mirror holder 26, and the mirror 28 can be rotated integrally with the mirror holder 26. The mirror surface 28A (the surface of the reflective layer on the back side) of the mirror 28 is directed to the vehicle rear side, and the vehicle occupant can visually recognize the vehicle rear side by the mirror 28.

  A detection device 30 (memory) is fixed on the vehicle front side of the case 14, and a pair of variable resistors 32 as detection means are fixed in the detection device 30. The variable resistor 32 is provided with a slider 32A as a moving portion so as to be slidable (movable) linearly. The sliding direction of the slider 32A is perpendicular to the displacement direction of the rod drive 24 (vehicle longitudinal direction). It is in the direction (it should be in the direction of crossing). When the slider 32A is slid and the slide position is changed, the resistance value of the variable resistor 32 is changed. The variable resistor 32 is electrically connected to an ECU 34 as control means.

  The front end of each rod drive 24 and the slider 32A of each variable resistor 32 are connected (coupled) by a string-like (substantially circular) wire 36 (cable) as a connecting member. One end and the other end of 36 are fixed to the vehicle front end of the rod drive 24 and the slider 32 </ b> A, respectively, and penetrated through the wheel drive 22 and the bottom wall of the case 14. The wire 36 is not stretchable in the longitudinal direction (axial direction) and has tension in the longitudinal direction and is stretched linearly in the longitudinal direction in a natural state (a state where no force is applied) (without sagging). Extended state). Furthermore, the wire 36 has elastic flexibility in the radial direction.

  The wire 36 is fitted and penetrated into a cylindrical guide 38 as guide means, and the guide 38 is fixed inside the detection device 30 (or the case 14). The guide 38 is curved in the radial direction, and the wire 36 is elastically curved (bent) in the radial direction along the longitudinal direction (axial direction) of the guide 38 by the guide 38. The wire 36 is movable in the longitudinal direction along the longitudinal direction of the guide 38, and the guide 38 is capable of guiding the movement of the wire 36 in the longitudinal direction.

  One end of the guide 38 on the rod drive 24 side is directed to the rod drive 24, and a portion of the wire 36 between the guide 38 and the rod drive 24 is linearly stretched in the longitudinal direction. The longitudinal direction is arranged in parallel to the displacement direction of the rod drive 24 (vehicle longitudinal direction). The other end of the guide 38 on the slider 32A side is directed to the slider 32A, and the portion of the wire 36 between the guide 38 and the slider 32A is linearly stretched in the longitudinal direction, and the longitudinal direction. Are arranged in parallel to the sliding direction of the slider 32A.

  Next, the operation of this embodiment will be described.

  In the vehicle door mirror device 10 having the above configuration, the motor 18 is driven and the worm 20 is rotated in the mirror surface angle adjusting device 12, whereby the wheel drive 22 (including the worm wheel 22A and a predetermined number of meshing claws 22B is included. ) Is rotated, and the rod drive 24 is displaced in the vehicle longitudinal direction. Therefore, the mirror holder 26 and the mirror 28 are rotated in at least one of the vertical direction and the vehicle width direction by the rod drive 24, so that the mirror surface 28A angle of the mirror 28 is adjusted in at least one of the vertical direction and the vehicle width direction. The

  Furthermore, when the rod drive 24 is displaced in the vehicle longitudinal direction, the wire 36 is moved in the longitudinal direction by the rod drive 24, and the slider 32 </ b> A of the variable resistor 32 in the detection device 30 is slid by the wire 36. Thus, the resistance value of the variable resistor 32 is changed. Therefore, based on the resistance value of the variable resistor 32, the slide position of the slider 32A, the movement position of the wire 36 in the longitudinal direction, and the displacement position of the rod drive 24 are detected, and the ECU 34 detects the positions of the mirror holder 26 and the mirror 28. The rotation angle and thus the mirror surface 28A angle of the mirror 28 are detected and stored.

  Further, the wire 36 is bent in the radial direction, and the sliding direction of the slider 32A is set to be a direction perpendicular to the displacement direction (vehicle longitudinal direction) of the rod drive 24 (the direction may be crossed). For this reason, compared with the case where the sliding direction of the slider 32A is made parallel to the displacement direction of the rod drive 24, the sliding distance of the slider 32A in the displacement direction of the rod drive 24 can be shortened. Thereby, the dimension of the variable resistor 32 in the displacement direction of the rod drive 24 can be reduced, and the detection device 30 and the mirror surface angle adjusting device 12 can be downsized in the displacement direction of the rod drive 24. The installation space to 10 can be reduced. Moreover, since the wire 36 is bent in the longitudinal direction, the degree of freedom of the installation position of the variable resistor 32 in the detection device 30 can be increased, and the degree of freedom in design of the detection device 30 can be increased.

  Here, the wire 36 is fitted and penetrated into the guide 38, and the guide 38 guides the movement of the wire 36 in the longitudinal direction.

  For this reason, when the rod drive 24 is displaced to the rear side of the vehicle (the side opposite to the wire 36), the bending of the wire 36 is reduced (moved in the radial direction) by the guide 38. This can be suppressed, and the passage path of the wire 36 can be maintained. Furthermore, when the rod drive 24 is displaced to the vehicle front side (wire 36 side), the guide 38 can suppress the wire 36 from sagging in the radial direction, and the passage route of the wire 36 can be maintained.

  Thereby, when the rod drive 24 is displaced to the rear side of the vehicle and when the rod drive 24 is displaced to the front side of the vehicle, the wire 36 can be appropriately moved in the longitudinal direction by the displacement of the rod drive 24. The slider 32A can be appropriately slid, the displacement distance of the rod drive 24 and the slide distance of the slider 32A can be made equal, and the relationship between the displacement position of the rod drive 24 and the slide position of the slider 32A can be made constant. Therefore, the displacement position of the rod drive 24 can be detected appropriately (highly accurate) based on the resistance value of the variable resistor 32, and the rotation angle of the mirror 28 and the mirror surface 28A angle of the mirror 28 can be detected appropriately (highly accurate).

  Further, the wire 36 is formed in a string shape. Therefore, the wire 36 can be easily twisted in the circumferential direction (around the axis), the degree of freedom of installation of the wire 36 can be increased, and the variable resistance of the wire 36 in the circumferential direction of the rod drive 24 side portion of the wire 36 can be increased. The degree of freedom of the installation position of the container 32 side portion can be increased. Thereby, the freedom degree of the installation position of the variable resistor 32 in the circumferential direction of the rod drive 24 can be increased, and the design freedom of the detection device 30 can be further increased.

[Second Embodiment]
FIG. 4 is a cross-sectional view (a cross-sectional view taken along line 1-1 in FIG. 2) of the main part of a vehicle door mirror device 50 according to a second embodiment to which the vehicle mirror device of the present invention is applied. Is shown.

  The vehicle door mirror device 50 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  As shown in FIG. 4, in the vehicle door mirror device 50 according to the present embodiment, in the detection device 30, the variable resistor 32 is provided with a tension coil spring 52 (biasing means) as a tension means, and the tension coil spring. 52 is arranged on the opposite side to the wire 36 of the slider 32A. The tension coil spring 52 is arranged in parallel with the slide direction of the slider 32A in the axial direction and is connected to the slider 32A. The tension coil spring 52 biases the slider 32A to the side opposite to the wire 36. Yes. Thus, the tension coil spring 52 applies a biasing force toward the slider 32A to the wire 36 via the slider 32A, and the wire 36 is pulled toward the slider 32A by the biasing force of the tension coil spring 52. .

  Here, also in this embodiment, the same operation and effect as the first embodiment can be obtained.

  Further, the wire 36 is pulled toward the slider 32 </ b> A by the urging force of the tension coil spring 52. For this reason, when the rod drive 24 is displaced to the vehicle front side (wire 36 side), it is possible to further suppress the wire 36 from sagging in the radial direction by the urging force of the tension coil spring 52, and the passage path of the wire 36. Can be further maintained. Thereby, the wire 36 can be moved more appropriately in the longitudinal direction by the displacement of the rod drive 24 toward the vehicle front side, and the slider 32A can be slid more appropriately. The displacement distance of the rod drive 24 and the slider The slide distance of 32A can be made more equal, and the relationship between the displacement position of the rod drive 24 and the slide position of the slider 32A can be made more constant. Therefore, the displacement position of the rod drive 24 can be detected more appropriately (high accuracy) based on the resistance value of the variable resistor 32, and the rotation angle of the mirror 28 and, more specifically, the mirror surface 28A angle of the mirror 28 can be detected more appropriately (high accuracy). it can.

[Third Embodiment]
FIG. 5 is a cross-sectional view (a cross-sectional view taken along line 1-1 in FIG. 2) of the main part of a vehicle door mirror device 60 according to a third embodiment to which the vehicle mirror device of the present invention is applied. Is shown.

  The vehicle door mirror device 60 according to the present embodiment has substantially the same configuration as the second embodiment, but differs in the following points.

  As shown in FIG. 5, in the vehicle door mirror device 60 according to the present embodiment, in the detection device 30, for example, a magnetic body 62 made of iron is integrally provided on the slider 32 </ b> A of the variable resistor 32. The slider 32A is disposed on the opposite side to the wire 36.

  The variable resistor 32 is provided with a magnet 64 (magnetic force generating means) as a pulling means, and the magnet 64 is disposed on the opposite side of the magnetic body 62 from the slider 32A. The magnet 64 is opposed to the magnetic body 62 in the sliding direction of the slider 32A, and the magnet 64 applies a magnetic force (attraction force) to the magnetic body 62 on the side opposite to the slider 32A. As a result, the magnet 64 applies an attractive force toward the slider 32A to the wire 36 via the magnetic body 62 and the slider 32A, and the wire 36 is pulled toward the slider 32A by the magnetic force of the magnet 64.

  Here, also in this embodiment, the same operation and effect as the first embodiment can be obtained.

Further, the wire 36 is pulled toward the slider 32 </ b> A by the magnetic force of the magnet 64. For this reason, when the rod drive 24 is displaced to the vehicle front side (wire 36 side), the magnetic force of the magnet 64 can further prevent the wire 36 from sagging in the radial direction, and the passage path of the wire 36 can be further maintained. it can. Thereby, the wire 36 can be moved more appropriately in the longitudinal direction by the displacement of the rod drive 24 toward the front of the vehicle, and the slider 32A can be slid more appropriately. The displacement distance of the rod drive 24 and the slider The slide distance of 32A can be made more equal, and the relationship between the displacement position of the rod drive 24 and the slide position of the slider 32A can be made more constant. Therefore, the displacement position of the rod drive 24 can be detected more appropriately (high accuracy) based on the resistance value of the variable resistor 32, and the rotation angle of the mirror 28 and, more specifically, the mirror surface 28A angle of the mirror 28 can be detected more appropriately (high accuracy). it can.

  In the present embodiment, the magnetic body 62 is provided integrally with the slider 32A. However, the slider 32A itself may be a magnetic body.

  In the second embodiment and the third embodiment, the meshing claw 22B is extended from the wheel drive 22 to the rear side of the vehicle. However, the meshing claw 22B may be extended from the wheel drive 22 to the vehicle front side.

  In this case, when the rod drive 24 is displaced to the rear side of the vehicle (the side opposite to the wire 36), the rod drive 24 is acted upon by the force from the mirror holder 26 and the mirror 28 toward the front side of the vehicle, and the meshing claw 22B. As a result, the frictional force between the rod drive 24 and the meshing claw 22B is reduced by the force applied from the rod drive 24 to the outer side in the radial direction of the wheel drive 22, and the displacement of the rod drive 24 toward the rear side of the vehicle is reduced. Resistance is reduced. On the other hand, when the rod drive 24 is displaced to the front side of the vehicle (the wire 36 side), the rod drive 24 is applied with a force from the mirror holder 26 and the mirror 28 to the rear side of the vehicle, and the engagement claw 22B is moved to the rod drive 24. By applying a force inward in the radial direction of the wheel drive 22, the frictional force between the rod drive 24 and the meshing claw 22B is increased, and the displacement resistance of the rod drive 24 toward the vehicle front is increased. .

  As described above, even when the displacement resistance of the rod drive 24 toward the vehicle front side is increased, the rod drive 24 is pulled toward the vehicle front side by the biasing force of the tension coil spring 52 or the magnetic force of the magnet 64 via the wire 36 and the slider 32A. Thus, the rod drive 24 can be easily displaced toward the front side of the vehicle. Thereby, the driving force of the motor 18 that rotates the wheel drive 22 can be reduced, and the motor 18 can be reduced in size.

  Further, in the second embodiment and the third embodiment, the guide 38 for guiding the movement of the wire 36 is provided. However, the guide 38 for guiding the movement of the wire 36 may not be provided. In this case, when the rod drive 24 is displaced to the vehicle rear side (the side opposite to the wire 36) and when the rod drive 24 is displaced to the vehicle front side (the wire 36 side), the displacement position of the rod drive 24 and the slider What is necessary is just to make the relationship with the slide position of 32A constant.

  In the first to third embodiments, the longitudinal direction of the portion between the guide 38 of the wire 36 and the rod drive 24 is arranged in parallel to the displacement direction of the rod drive 24, and the guide 38 of the wire 36 is arranged. The longitudinal direction in the portion between the slider 32A and the slider 32A is arranged parallel to the sliding direction of the slider 32A. However, the longitudinal direction in the portion between the guide 38 of the wire 36 and the rod drive 24 may not be arranged parallel to the displacement direction of the rod drive 24, and between the guide 38 of the wire 36 and the slider 32A. The longitudinal direction of the portion may not be arranged in parallel to the sliding direction of the slider 32A.

  Further, in the first to third embodiments, the displacement member of the present invention is the rod drive 24. However, the displacement member of the present invention may be the mirror holder 26 or the mirror 28.

  In the first to third embodiments, the detection means is the variable resistor 32. However, the detection means only needs to be able to detect the movement position (including the slide position, the rotation position, and the rotation position) of the movement unit (for example, the slider 32A).

  Furthermore, in the said 1st Embodiment-3rd Embodiment, it was set as the structure which applied this invention to the door mirror apparatus 10, 50, 60 for vehicles. However, the present invention may be applied to a mirror device outside or inside the vehicle.

10. Vehicle door mirror device (vehicle mirror device)
24 Rod drive (displacement member)
28 mirror 28A mirror surface 32 variable resistor (detection means)
36 Wire (Communication member)
38 Guide (Guiding means)
50 Vehicle door mirror device (vehicle mirror device)
52 Tension coil spring (Tensioning means)
60 Vehicle door mirror device (vehicle mirror device)
64 Magnet (Tensing means)

Claims (1)

A mirror provided in the vehicle;
A displacement member whose mirror surface angle is adjusted by being displaced;
A connecting member which is formed into a string and has flexibility, is connected to the displacement member, and the displacement member is displaced and moved;
Detecting means for detecting the mirror surface angle of the mirror by detecting the moving position of the connecting member by contacting the connecting member;
Guiding means for guiding the movement of the connecting member when the displacement member is moved toward the connecting member;
A mirror device for a vehicle in which the displacement resistance of the displacement member toward the connecting member is larger than the displacement resistance of the displacement member toward the opposite side of the connecting member .

Images