JPH04125944U - back mirror - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] To instantly lower the mirror angle of the rearview mirror to a predetermined downward angle that allows visibility of the area near the rear wheels on the left side of the vehicle, etc. when the vehicle is reversing. To do so and also to be able to instantly return the mirror angle to the original angle after the backward movement of the vehicle is completed. [Configuration] Pivot 1 that adjusts the mirror angle vertically
The adjustment nut 17 with 6 is driven to rotate by the first motor 11, and the adjustment nut is screwed into the adjustment screw 21 which cannot be rotated, and the adjustment screw cannot be moved forward or backward at all times and when the second motor 22 rotates. The motor is connected to the second motor so that it moves forward and backward instantaneously within a certain range.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to be used on the back side of door mirrors, fender mirrors, etc. in vehicles such as automobiles. This relates to mirrors, especially near the rear wheels on the left side of the vehicle when the vehicle is backing up. Instantly lower the mirror angle to a predetermined downward angle that allows visibility of the sides and rear of the vehicle. It also allows you to instantly return the mirror angle to the original angle after the vehicle is backed up. This relates to a rearview mirror that can be rotated.

0002

[Conventional technology]

The mirror angle is adjusted horizontally and vertically using two actuators. Electric rearview mirrors that can be adjusted using remote control are already widely available. Are known. This rearview mirror has a pivot for supporting the central part of the mirror holder. The two actuators support the two adjusting nuts with pivots. The mirror angle can be adjusted horizontally and vertically by moving them forward and backward. It is something.

0003

[Problem that the idea aims to solve]

For example, when backing up by pulling the vehicle into a ditch on the left side of the road, Tilt the mirror downward in the rearview mirror to the left side near the rear wheel, etc. It is necessary to visually check the bottom and rear. However, in the conventional rearview mirror described above, Screw the adjustment nut onto the adjustment screw that cannot be moved forward or backward, and then tighten the adjustment screw. By rotating the adjustment nut, you can move it forward or backward to adjust the mirror angle. The tilting speed of the mirror is slow, and the mirror does not reach a predetermined angle. This cannot be locked when the mirror is turned to a certain angle. cannot be lowered to Therefore, when reversing the vehicle, visually check the left side and rear of the vehicle. It takes time to lower the mirror angle to the desired state, and during this adjustment time other vehicles may be There is a risk that the line will be hindered. The present invention has been made in an attempt to solve such problems.

0004

[Means to solve the problem]

In order to solve the above problems, the present invention aims to improve the mirror angle of the conventional rearview mirror. A method of instantly tilting the mirror vertically to adjust the angle vertically at low speed. Provides a rearview mirror with additional steps. In other words, the rearview mirror of the present invention - The first motor turns the adjusting nut with a pivot that adjusts the angle vertically. Rotate and drive the adjustment nut to the non-rotatable adjustment screw, and then The just screw cannot be moved forward or backward at all times, and remains constant only when the second motor rotates. It is characterized by being connected to a second motor so that it can move forward and backward instantly within the range. be.

[0005] The adjustment screw cannot be moved forward or backward at all times, and only when the second motor rotates. When relating to the second motor so that it moves instantly within a certain range, (a) A spiral groove with a large pitch is formed at the rear of the adjustment screw. Insert the rear part of the same into the center hole of the worm wheel rotated by the second motor, and Insert the pin protruding inward from the center hole of the arm wheel into the spiral groove. However, (Claim 2), (b) the rear part of the adjustment screw may be cylindrical or cylindrical. A concave groove that bends in the front-back direction is continuously formed on the outer periphery of the rear part, and the Insert the rear part of the cast screw into the center hole of the worm wheel rotated by the second motor. Then, fit the convex pin protruding inward from the center hole of the worm wheel into the groove. (Claim 3).

[0006]

[Effect]

In the rearview mirror of claim 1, the adjustment screw is always unrotatable; When the second motor is stopped, the adjustment screw cannot rotate and cannot move forward or backward. Ru. Therefore, if the first motor is rotated while the second motor is stopped, the The adjusting nut with a pivot that is screwed onto the adjusting screw is in the direction of rotation of the first motor. The mirror is tilted upward or downward at low speed by moving forward or backward. on the other hand, By rotating the second motor in the specified direction, the adjustment screw will instantly move to the specified position. fall back. If the adjustment screw instantly retreats to the specified position, the adjustment screw The adjustment nut that is screwed into the tilt it downward to a predetermined angle. The adjustment screw was rotated by the second motor. Since the adjustment screw moves only within a certain range, the adjustment screw The adjustment screw has reached the specified position without retracting beyond the position. If the rotation of the second motor is stopped, the adjustment screw will lock into the specified position. is blocked. If the adjustment screw is locked in the specified position, it is screwed into the adjustment screw. The adjustment nut is also locked in place and the mirror is at the desired downward angle. locked. In this state, the driver of the vehicle should be on the left side of the vehicle, near the rear wheels, etc. The vehicle can be backed up while visually checking the rear. After the vehicle completes reversing, the second mode The adjustment screw will instantly move back to its original position by rotating it in the opposite direction to the above. do. If the adjustment screw instantly advances to its original position, it will be screwed into the adjustment screw. The adjustment nut that is in the Return to degree. The second motor stops rotating when the adjustment screw reaches its original position. If it is, the adjustment screw will be locked in its original position, as before. Aja If the adjustment screw is locked in its original position, the adjustment nut screwed into it will also return to its original position. position and the mirror is locked to its original neutral angle. mirror After the is locked to the original neutral angle, the first motor The angle of the mirror can be adjusted slowly upwards or downwards.

[0007] In the rearview mirror of claim 2, the second motor is rotated in a predetermined direction. When the worm wheel rotates in a predetermined direction, the center hole of the worm wheel A pin that protrudes inward slides in a spiral groove at the rear of the adjustment screw. However, Since the adjustment screw cannot be rotated, the adjustment screw should fit inside the helical groove at the rear. Pushed by the sliding pin to a predetermined position, that is, the position where the pin abuts one end of the spiral groove, Instantly retreat to. In other words, the rotational movement of the worm wheel is controlled by the adjustment screw. can be converted into linear motion. At this time, since the spiral groove forms a spiral shape with a large pitch, The adjustment screw moves at high speed. As mentioned above, the adjustment screw is locked in this state. so that the adjustment nut is also locked in place and the mirror is in its designated downward position. locked at this angle. Also, when the second motor is rotated in the opposite direction to the above , the worm wheel rotates in the opposite direction as above and the worm wheel pin instantly return the adjustment screw to its original position, where the pin touches the other end of the spiral groove. Return to time. As mentioned above, the adjustment screw is locked in this state, so the adjustment The nut is also locked in its original position and the mirror is locked in its original neutral angle. It will be done.

[0008] In the rearview mirror according to claim 3, the rotation direction of the second motor is always constant. . When the second motor is rotated in the predetermined direction, the worm wheel is rotated in the predetermined direction. The convex pin protruding inward from the center hole of the worm wheel rotates in the direction of the worm wheel. Slides in the groove at the rear of the cast screw. However, the adjustment screw cannot be rotated. The adjustment screw is pushed into the specified position by a convex pin that slides in the groove at the rear. instantaneously retreats to the position where the convex pin reaches the frontmost part of the concave groove, To instantly tilt a mirror downward to a predetermined angle. At this time, the concave groove is Because it is bent, the adjustment screw moves at high speed. The adjustment screw is in the specified position. If you stop the second motor when you move back to the position, the adjustment screw will move to the specified position. position, and the mirror is locked at a predetermined downward angle. Next, the second If the motor is rotated again in the same direction as above, the convex pin of the worm wheel will be activated. Slide further in the same direction in the groove at the rear of the just screw. At this time, adjust It is pushed into a predetermined position by the convex pin sliding in the concave groove at the rear of the convex pin. The mirror moves forward instantly until it reaches the rearmost position in the concave groove, and the mirror instantly returns to its original position. Tilt it upward to a neutral angle. the adjustment screw to the specified position. If you stop the second motor when moving forward, the adjustment screw will be at the specified position. The mirror will be locked to its original neutral angle.

[0009]

【Example】

Next, embodiments of the present invention will be described with reference to the accompanying drawings. 1 is the mirror body of the rearview mirror, 2 is the mirror, and 3 is the one that holds the mirror 2. It is a mirror holder. Mirror holder 3 has its center part as support pivot 4 Support. The rearview mirror of this invention also has two pivot points using two actuators. Adjust the angle of mirror 2 horizontally and upwards by moving the adjusting nuts with The rearview mirror of this invention is adjusted downward, but the rearview mirror of this invention is different from the conventional rearview mirror. The mirror angle in the vertical direction can be adjusted at low speed in the vertical direction. The mirror angle can be changed from side to side since a means for instantaneously tilting the mirror is added to the mirror. We omit the explanation of the means of adjustment, and below we will adjust the mirror angle vertically at low speed. Embodiments of the present invention will be described in relation to means for doing so.

00010] First, a means for adjusting the mirror angle in the vertical direction at low speed will be explained. code 1 0 is the actuator housing. Inside the actuator housing 10 there is a mi A motor, ie, a first motor 11, is provided for vertically adjusting the mirror angle. 1st A worm 12 is attached to the output shaft of the motor 11, and a worm home is attached to the worm 12. Engage the eel 13. The inner wall surface of the center hole 14 of the worm wheel 13 has an axial direction. A groove 15 is formed. On the other hand, an adjustment nut 17 with a pivot 16 at the front end is provided with a protrusion 18 corresponding to the groove 15 of the worm wheel 13, and the protrusion 18 is formed into a groove. 15, insert the adjustment nut 17 into the center hole 14 of the worm wheel 13. (See Figure 3). That is, warm the adjustment nut 17 like this. By associating it with the wheel 13, the adjustment nut 17 always remains in the worm home. It rotates together with the eel 13, but the adjustment nut 17 is attached to the worm wheel 13. You can freely move forward and backward. The pivot 16 at the front end of the adjustment nut 17 is a mirror holder. The adjustment nut 17 is fitted into the concave seat 19 provided on the This allows the mirror holder 3 to tilt in the vertical direction. adjustment nut 17 is equipped with a plurality of claws 20 at its rear, and these claws 20 cannot be rotated and cannot move forward or backward at all times. screw into the adjustment screw 21 of the function. When the adjustment screw 21 cannot be moved forward or backward, by operating the appropriate switch. If the first motor 11 is rotated in a predetermined direction, the rotation of the first motor 11 becomes warm. 12, the information is transmitted to the adjustment nut 17 via the worm wheel 13, and the adjustment The strut nut 17 rotates in a predetermined direction. At this time, the claw of the adjustment nut 17 Since the adjustment screw 21 to which the screw 20 is screwed cannot rotate and cannot move forward or backward, The just nut 17 moves forward or backward to adjust the mirror angle upward or downward. Ru.

[0011] Next, in addition to the above-mentioned means for adjusting the mirror angle in the vertical direction at low speed, A means for instantaneously tilting the mirror in the vertical direction will be explained. A second motor separate from the first motor 11 is provided in the actuator housing 10. 22, the adjustment screw 21 cannot be moved forward or backward at all times, and the second motor The second motor 22 is configured to move forward and backward within a certain range only when the second motor 22 rotates. Make it relevant. In the examples shown in Figures 1 to 4, the adjustment screw 21 is normally moved forward and backward. It is impossible to move forward and backward within a certain range only when the second motor 22 rotates. The rear part 2 of the adjustment screw 21 is connected to the second motor 22 so as to A spiral groove 24 with a large pitch is formed in the rear part 2 of the adjustment screw 21. 3 into the center hole 26 of the worm wheel 25 rotated by the second motor 22. , the pin 27 protruding inward from the central hole 26 of the worm wheel 25 is inserted into the spiral groove. 24 is inserted. That is, as an example, the rear part 23 of the adjustment screw 21 is A pair of spiral grooves 24 are formed in the cylindrical portion. Furthermore, the second model A worm 28 is attached to the output shaft of the motor 22, and the worm wheel 25 is connected to the worm wheel 25. Engage with ohm 28. Wall the large diameter cylindrical part of the rear part 23 of the adjustment screw 21. The pin 27 is inserted into the center hole 26 of the arm wheel 25, and the pin 27 is inserted into the spiral groove 24. Ru. For example, in order to make the adjustment screw 21 non-rotatable, An axial rotation stopper groove 29 is formed in the rear part 23 of the actuator housing. A rotation stop protrusion 30 corresponding to the rotation stop groove 29 is provided in the adjustment ring 10. The rotation stop groove 29 of the screw 21 is fitted into the rotation stop protrusion 30. In this case, when the second motor 22 is stopped, the worm wheel Since the wheel 25 also does not rotate, the pin 27 of the worm wheel 25 is inserted into the spiral groove 24. The adjustment screw 21 shown in FIG. 1 cannot be moved forward or backward. By operating the appropriate switch 2 When the motor 22 is rotated in a predetermined direction, the worm is rotated through the worm 28. The worm wheel 25 rotates in a predetermined direction, and from the center hole 26 of the worm wheel 25 A pin 27 protruding inward slides within the spiral groove 24 of the rear part 23 of the adjustment screw 21. , the non-rotatable adjustment screw 21 is set at a predetermined position, that is, as an example, the pin 27 is set in a spiral position. Instantly move the mirror 2 back to the position where it abuts one end of the groove 24, and raise the mirror 2 to a predetermined angle. Lower it instantly. When the adjustment screw 21 reaches the predetermined position, the second motor 2 2 stops rotation and locks the adjustment screw 21. Therefore, the adjustment screw Adjustment nut 17 screwed into 21 is locked, and as a result, mirror 2 is also in place. locked at a fixed downward angle. Also, the second motor 22 is moved in the opposite direction to the above. When rotated, the worm wheel 25 is rotated through the worm 28 in the opposite direction. The pin 27 of the worm wheel 25 returns the adjustment screw 21 to its original position. position, that is, for example, the position where the pin 27 abuts the other end of the spiral groove 24. Return it and instantly raise mirror 2 to its original angle. Mirror 2 is the same as above. Locked in position (neutral).

0012 On the other hand, in the cases shown in Figures 5 to 7, the adjustment screw 21 cannot be moved forward or backward at all times. Yes, and it moves instantly within a certain range only when the second motor 22 rotates. When associating the second motor 22 with the second motor 22, the rear part 23 of the adjustment screw 21 is The rear part 23 has a concave groove 3 bent in the front and back direction on the outer periphery thereof. 1 continuously, and the rear part 23 of the adjustment screw 21 is rotated by the second motor 22. Fit it into the center hole 26 of the worm wheel 25 that rotates, and insert it into the worm wheel 25. A convex pin 32 protruding inward from the central hole 26 is fitted into the groove 31. this thing In this example, an adjustment screw 21 is used instead of the spiral groove 24 in the case shown in FIGS. 1 to 4. A concave groove 31 that bends in the front-rear direction is continuously formed on the outer periphery. Hereinafter, only the differences from the above examples shown in FIGS. 1 to 4 will be explained. The groove 31 continuously connects the rearmost part 31a and the frontmost part 31b via the connecting part 31c. It is something that comes together. The concave groove 31 is a bottomed groove, and the convex pin 32 is a worm wheel. For example, a pair of holes are provided in the center hole 26 of the roller 25. In this case, the rotation direction of the second motor 22 is always constant and cannot be reversed. There is no need to In other words, the second motor 22 is only controlled to turn ON and OFF. That's fine. As the second motor 22 rotates, the convex pin 32 always moves inside the concave groove 31 at a constant rate. move in the direction. That is, the convex pin 32 moves inside the groove 31 from the rearmost part 31a to the connecting part 31c. Move sequentially like the frontmost part 31b - the connecting part 31c - the rearmost part 31a - the connecting part 31c... move. When the convex pin 32 is at the rearmost part 31a in the groove 31, the mirror is in the new position. - Located in Toral. When the convex pin 32 is at the frontmost part 31b in the groove 31 The mirror will be at a predetermined downward angle. The convex pin 32 is located at the rearmost portion 31 within the concave groove 31. If the rotation of the second motor 22 is stopped when it reaches the frontmost part 31b from a to the front part 31b, the mirror are each locked in a neutral position or a predetermined downward position. Convex When the shaped pin 32 is moving in the connecting portion 31c in the groove 31, the adjustment screw 2 1 advances and retreats.

[0013]

[Effect of the idea]

As explained above, according to the present invention, when the vehicle is backing up, the left side of the vehicle The mirror can be instantly lowered to a predetermined downward angle that allows visibility of the rear. When you finish reversing, you can instantly return the mirror to its original angle. Therefore, it is considered necessary can be obtained instantly, improving vehicle driving safety. Further, in claim 3, the second motor and the gear always rotate only in a fixed direction. , no need to invert. Therefore, the durability of the second motor and gear is improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of a rearview mirror according to the present invention.

FIG. 2 is a sectional view showing a state in which the mirror angle of the rearview mirror is lowered to a state where the left side and rear of the vehicle can be visually recognized when the vehicle is backing up.

FIG. 3 is a perspective view showing a worm wheel and an adjustment nut.

FIG. 4 is a perspective view showing an adjustment screw and an actuator housing.

FIG. 5 is a perspective view showing a modification of the adjustment screw.

FIG. 6 is a developed view showing a groove at the rear of the adjustment screw in FIG. 5;

FIG. 7 is a front view showing a modification of the worm wheel.

[Explanation of symbols]

1 Mirror body 2 mirror 3 Mirror holder 4 Support pivot 10 Actuator housing 11 First motor 12 Worm 13 Worm wheel 14 Central hole 15 Groove 16 Pivot 17 Adjustment nut 18 Projections 19 Concave catch 20 Nails 21 Adjustment screw 22 Second motor 23 Rear part 24 Spiral groove 25 Worm wheel 26 Central hole 27 pin 28 Worm 29 Rotation stopper groove 30 Rotation stopper projection 31 Groove 31a last part 31b Front part 31c Connection part 32 Convex pin

Claims (3)

[Scope of utility model registration request] Claim 1: An adjustment nut with a pivot that adjusts the mirror angle in the vertical direction is rotationally driven by a first motor, and the adjustment nut is screwed into a non-rotatable adjustment screw, and the adjustment screw cannot be moved forward or backward at any time. A rearview mirror characterized in that the rearview mirror is associated with the second motor so as to instantaneously move forward and backward within a certain range only when the second motor rotates. 2. A spiral groove having a large pitch is formed in the rear part of the adjustment screw, and the rear part of the adjustment screw is fitted into the center hole of a worm wheel rotated by a second motor, and the rear part of the adjustment screw is fitted into the center hole of the worm wheel. 2. The rearview mirror according to claim 1, wherein a pin protruding toward the side is inserted into said spiral groove. 3. The rear part of the adjustment screw is cylindrical or cylindrical, and the outer periphery of the rear part is continuously formed with a groove that bends in the front-rear direction, and the rear part of the adjustment screw is rotated by a second motor. 2. The rearview mirror according to claim 1, wherein a convex pin is fitted into the central hole of the worm wheel and projects inward from the central hole of the worm wheel.