JPH0310538B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a manual adjustment device for a foldable mirror for manually adjusting the attitude of the mirror from inside a vehicle.

(Prior Art) Door mirrors for automobiles that have a structure in which the mirror visor tilts when a large external force is applied and return to the original position when the external force is removed are well known as so-called tilting mirrors. In addition, a mirror in which the tilt angle of the mirror visor is further increased so that it can be tilted down to about 90 degrees from the normal position and maintained in that position is known as a so-called foldable mirror. All of the mirrors are equipped with a mechanism for adjusting the attitude of the mirror, which is tiltably supported within the mirror visor, and some mirrors allow the attitude of the mirror to be adjusted remotely from inside the vehicle. There are two types of remote adjustment devices: electrical ones and manual ones, but in the case of the above-mentioned foldable mirror, the tilt angle of the mirror visor is large, so the manually operated adjustment axis is attached to the mirror visor. It is difficult to install the device in a manner that does not impede movement, and an electrical remote control device has generally been used.

(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned problems, and aims to provide an extremely inexpensive manual adjustment device that can be applied to a folding mirror with a large tilt angle. .

(Means for Solving the Problems) In other words, the present invention provides a support arm that extends horizontally from the lower part of a mirror stay fixed to the outer surface of a vehicle, and has a rotation axis extending substantially vertically upward. The mirror holder holding the mirror holder is tiltably supported via a ball bearing on a mounting plate fixed to the mirror visor, and the shaft hole formed in the mirror visor is fitted to the rotation shaft, and the mirror visor is attached to the mirror stay. In a folding mirror that is rotatably mounted, the ball bearing part of the mirror support part is provided at a position eccentric from the axis of the rotation shaft, and at a position eccentric from the ball bearing part in a substantially horizontal direction. , a guide pin is provided protruding substantially rearward from the mirror holder, and a guide hole into which the guide pin is inserted is formed in the mounting plate to constitute a guide portion that restricts vertical movement of the mirror, and the mirror stay is inserted into the vehicle from the inside. An operating lever protruding into the mirror visor through the mirror visor approximately horizontally is supported and attached to the mirror stay via a ball bearing so as to be rotatable and pivotable in the front and rear directions. and a connecting member having a shaft fitted so as to be movable in the axial direction, a connecting plate is connected to the tip of an arm extending substantially horizontally from the lower end of the shaft of the connecting member, and a connecting plate is connected to the tip of the connecting plate. a substantially horizontal engagement recess is formed, and a spherical end provided at the tip of the operation lever bent toward the rear of the mirror is engaged with the engagement recess, and a coil spring is attached to the shaft of the connection member. The coil spring engages the V-shaped protrusion provided on the drive arm with the V-shaped groove provided on the shaft, and the mirror visor is rotated by external force. The engagement is disengaged against the torque generated when the drive arm is moved, and the spherical end formed at the tip of the drive arm is engaged with the engagement recess of the drive arm receiver formed in the mirror holder. , the manual adjustment device for a foldable mirror is characterized in that the engagement position is eccentric in the direction of the rear surface of the mirror with respect to a line connecting the support part of the mirror by the ball bearing part and the guide part. This is what we provide.

(Example) The present invention will be specifically described below with reference to an example shown in the drawings.

In the figure, 1 is a mirror stay, 2 is a mirror visor, 3 is a mirror, and 4 is a part of the vehicle such as a door. The mirror stay 1 is attached to both sides of the vehicle 4 with screws 5, and a support arm 6 extending approximately horizontally from the bottom of the mirror stay 1 has a pipe-shaped rotating shaft 7 extending approximately vertically upward. The shaft hole 8 of the visor 2 is fitted into the rotating shaft 7, the moderation member 9 and the moderation spring 10 are fitted, and the spring retainer 11 is attached, so that the mirror visor 2 is attached to the mirror stay 1.
is rotatably mounted on the Mirror stay 1
is formed with a cylindrical concave surface 12 whose axis coincides with the axis of the rotating shaft 7, and the mirror visor 2 is formed with a cylindrical concave surface 13 corresponding to the cylindrical concave surface 12, and the rotation of the mirror visor 2 is During operation, the concave surface 12 and the convex surface 13 rub against each other.
The mirror 3 is held by a mirror holder 14, and the mirror holder 14 is tiltably supported by a mounting plate 16 attached to the mirror visor 2 via a ball bearing 15.

Reference numeral 21 denotes an operating lever, which passes through the mirror stay 1 from the inside of the vehicle 4 toward the mirror visor 2, and supports a spherical portion 22 with a spherical bearing 24 formed by the mirror stay 1 and a bush 23 attached thereto. As a result, it can rotate around the axis and rotate in the front-rear direction (second
It is attached to the mirror stay 1 so as to be rotatable in the vertical direction (in the figure). A connecting member 26 includes a shaft 27 that is rotatably and axially movably inserted into the rotating shaft 7 and supported coaxially with the mirror visor 2, and a shaft 27 that extends substantially horizontally from the lower end of the shaft 27 and is supported. The arm part 2 bypasses the lower surface of the arm 6 and reaches the joint between the mirror stay 1 and the mirror visor 2.
8 and a connecting plate 29 that is connected to the tip of the arm portion 28 and reaches the operating lever 21, and is approximately U-shaped. The connecting plate 29 is housed in a guide recess 30 provided in the mirror stay 1, and forms a substantially horizontal engagement recess 31 that largely protrudes into the mirror visor 2. A spherical end 21a provided at the tip bent toward the back side of the holder is engaged with the spherical end 21a. The operating lever 21 has a bent tip, and the engagement recess 31 is connected to the mirror 3.
The operating lever 21 is inclined in a direction away from the operating lever 21 (downward in FIG. 2), and is provided at a position eccentric from the axis of the operating lever 21.

The shaft 27 of the connecting member 26 protrudes from the rotating shaft 7 into the mirror visor 2 to form a small diameter part 27a, and the drive arm 35 is attached to the small diameter part 27a, and the spherical end 35a at the tip of the drive arm 35 is integrally attached to the mirror holder 14. Drive arm receiver 36 formed in
It is engaged with the engagement recess 36a of. Therefore, the shaft 27 of the connecting member 26 moves in the axial direction or coaxially with the rotating shaft 7 depending on the operating mode of the operating lever 21, so the overall structure is simple. To attach the drive arm 35 to the shaft 27, attach the cylindrical portion 35b of the drive arm 35 to the small diameter portion 2 of the shaft 27.
7a and is biased downward by a coil spring 37. On the lower end surface of the cylindrical portion 35b and the corresponding end surface of the shaft 27,
A V-shaped protrusion 38 is formed on one side and a V-shaped groove 39 is formed on the other side, and the two engage with each other, and normally the shaft 27
The drive arm 35 rotates together, and when an external force is applied to the mirror visor 2 and a large torque is applied, the drive arm 35 is pushed upward against the pressing force of the coil spring 37 and forms a V-shaped protrusion 38. The engagement with the V-shaped groove 39 is disengaged, and the connection between the shaft 27 and the drive arm 35 is released. Further, the engagement recess 36a of the drive arm receiver 36 has a size that allows the spherical end 35a of the drive arm 35 to be held freely and rotatably without any play. A guide portion 43 consisting of a guide pin 41 protruding approximately rearward from the mirror holder 14 and a guide hole 42 formed in the mounting plate 16 is located on the opposite side of the engagement recess 36a across the ball bearing portion 15. is provided, and a guide pin 41 is inserted through a horizontal guide hole 42.
The vertical movement of is restricted. The engagement recess 36a is connected to the guide portion 43 and the ball bearing portion 1.
5 in the back direction of mirror 3 (second
At the same time, it is provided eccentrically in the lateral direction with respect to the ball bearing portion 15.

An operating knob 45 is fixed to the end of the operating lever 21 on the vehicle interior side with a countersunk screw 46. Note that 4a is an outer panel of the vehicle, 4b is an inner panel, and 4c is an interior material.

In the above configuration, when the operating knob 45 is operated to rotate the operating lever 21 around its axis, the spherical end 21a moves vertically because the tip is bent, and accordingly, the spherical end 21a moves in the vertical direction. to move the drive arm 35 up and down, and move the drive arm receiver 36 up and down. Here, since the engagement recess 36a of the drive arm receiver 36 is eccentric toward the back side of the mirror 3 with respect to the line connecting the ball bearing part 15 and the guide part 43, the vertical movement of the drive arm receiver 36 is caused by the ball bearing part 15. This is converted into a rotational movement of the mirror holder 14 about the line connecting the guide portion 43 and the guide portion 43, and the mirror holder 14 tilts in the vertical direction. Furthermore, when the operation knob 45 is moved in the front-back direction (vertical direction in FIG. 2), the connecting member 26 is moved to the shaft 2.
7, the drive arm 35 also rotates, the drive arm receiver 36 is moved in the front-back direction, and the mirror holder 14 is tilted in the horizontal direction using the ball bearing part 15 as a fulcrum. In this way, the posture of the mirror holder 14, and therefore the mirror 3, can be adjusted arbitrarily by remote control from the passenger compartment side. Incidentally, since the movement of the mirror 3 at this time is in the same direction as the movement of the operating lever 21, the feeling during adjustment is good and the adjustment is easy.

Further, when the mirror visor 2 rotates around the rotation axis 7 due to an external force, the V-shaped protrusion 38
The drive arm 35 disengages from the V-shaped groove 39.
is rotatable relative to the shaft 27, and the drive arm 35 rotates together with the mirror visor 2, so that the rotation of the mirror visor 2 is only regulated by the moderation member 9, for example as shown by the chain line in FIG. It can be pushed down to such a position without any problem. Furthermore, when the mirror visor 2 is raised and returned to its normal position, the V-shaped protrusion 38 and the V-shaped groove 39 engage again, and the drive arm 35 returns to the state where it can rotate integrally with the shaft 27. be.

In addition, as a detachable engagement means between the drive arm 35 and the connecting member 26, at least one of them is formed of a flexible material, and the visor 2 is moved by an external force.
It is also possible to adopt other configurations as appropriate, such as one in which the material bends and disengages when a torque above a certain level is applied to it.

(Effects of the Invention) As described above, according to the present invention, the mirror visor can be rotated freely, and the posture of the mirror can be arbitrarily adjusted manually, compared to the electric type. Therefore, it is possible to easily obtain a foldable mirror that is simple in structure, inexpensive, and has a good operating feeling.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A--A in FIG. 1. 1...Mirror stay, 2...Mirror visor,
3...Mirror, 4...Vehicle, 6...Support arm,
7...Rotation axis, 14...Mirror holder, 15...
... Ball bearing part, 16 ... Mounting plate, 21 ... Operation lever, 21a, 35a ... Spherical end, 22 ... Spherical part, 24 ... Spherical shaft part, 26 ... Connection member, 27
... Shaft, 31 ... Engagement recess, 35 ... Drive arm, 35b ... Cylinder part, 36 ... Drive arm receiver, 37 ... Coil spring, 38 ... V-shaped projection, 3
9... V-shaped groove, 41... Guide pin, 43... Guide portion.

Claims (1)

[Claims] 1. A rotation shaft 7 is attached to a support arm 6 extending horizontally from the bottom of a mirror stay 1 fixed to the outer surface of the vehicle.
The mirror holder 14 holding the mirror 3 is tiltably supported via a ball bearing 15 on a mounting plate 16 fixed to the mirror visor 2, and a shaft hole formed in the mirror visor 2 is formed so as to face substantially vertically upward. 8 onto the rotating shaft 7, and then attach the mirror visor 2.
In the folding mirror which is rotatably attached to the mirror stay 1, the ball bearing part 15 of the mirror support part is provided at a position eccentric from the axis of the rotating shaft 7, and with respect to the ball bearing part 15. A guide pin 41 is provided to protrude substantially backward from the mirror holder 14 at an eccentric position in the substantially horizontal direction, and a guide hole 42 into which the guide pin 41 is inserted is formed in the mounting plate 16 to restrict vertical movement of the mirror. The operating lever 21, which constitutes the guide part 43 and protrudes into the mirror visor 2 by penetrating the mirror stay 1 substantially horizontally from the inside of the vehicle, is rotated by the mirror stay 1 via the spherical bearing 24 and in the front-rear direction. A connecting member 26 is provided which has a shaft 27 which is rotatably supported and attached to the rotary shaft 7 and which is fitted coaxially and movably in the axial direction into the rotating shaft 7, and from the lower end of the shaft of the connecting member 26. A connecting plate 29 is connected to the distal end of the arm portion 28 extending approximately horizontally, and an approximately horizontal engaging recess 31 is formed at the distal end of the connecting plate 29, and the operating lever 21 is inserted into the engaging recess 31. The cylindrical portion 35b of the drive arm 35 is fitted by engaging the spherical end 21a provided at the tip bent toward the back of the mirror, and biasing the shaft 27 of the connecting member 26 with the coil spring 37. The drive arm 35 is driven by the coil spring 37.
The V-shaped protrusion 38 provided on the shaft 27 and the V-shaped protrusion 38 provided on the shaft 27
The mirror visor 2 is disengaged against the torque generated when the mirror visor 2 is rotated by an external force against the coil spring 37.
Further, the spherical end 35a formed at the tip of the drive arm 35 is engaged with the engagement recess 36a of the drive arm receiver 36 formed on the mirror holder 14, and the engagement position is set at the mirror support portion by the ball bearing 15. A manual adjustment device for a foldable mirror, characterized in that the position is eccentric in the rear direction of the mirror with respect to a line connecting the guide portion 43 and the guide portion 43.