JPH0152211B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a tilting mirror device having a structure in which a mirror visor is tilted by an external force.

(Prior Art) Automotive door mirrors 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 known as so-called tilting mirrors. In addition, mirrors in which the tilt angle of the mirror visor is further increased to approximately 90 degrees from the normal position and can be maintained in that position are also known as so-called foldable mirrors (hereinafter referred to as foldable mirrors). (collectively referred to as equipment). Conventionally, these tilting mirror devices have a structure in which a support arm is provided protruding from the bottom of a mirror stay that is attached to the outside surface of the vehicle, and the mirror visor is supported by a rotating shaft provided on this support arm. However, with this structure, the mirror visor is supported only on the lower side, which tends to be insufficient in strength, and also requires a rotation moderation mechanism to be installed on the rotating shaft. As a result, the rotating shaft and support arm become larger, and the area of the mirror becomes smaller despite the larger overall size, which increases air resistance during running, while also causing problems in that the field of view provided by the mirror tends to become smaller.

(Problems to be Solved by the Invention) The present invention focuses on these points and provides a tilting mirror device that can increase the support strength of the mirror visor and increase the area of the mirror to improve visibility. It was done for that purpose.

(Means for Solving the Problem) That is, the tilting mirror device according to the present invention inserts a mirror visor between support arms,
The mirror visor is rotatably attached to the mirror stay by fitting the protruding shaft into the shaft hole to serve as the rotating shaft, and the mirror stay is formed with an outer surface consisting of a cylindrical concave surface that coincides with the shaft center and the axis of the rotating shaft. , the mirror visor is formed with an outer peripheral surface consisting of a cylindrical convex surface corresponding to the outer surface so that both outer surfaces face each other, the mirror is held in a mirror holder, and the mirror holder is attached to the mirror visor via a ball bearing. The mirror visor is tiltably supported on a mounting plate, and the ball bearing part of the mirror visor is located at a position considerably eccentric from the axis of the rotating shaft part provided near the mirror stay, and both upper and lower sides of the outer peripheral surface of the mirror visor are mounted. Two moderation cams having tapered edges and an arcuate surface that coincides with the outer peripheral surface are integrally formed inside the mirror visor, and a roller-shaped moderation piece is provided on the mirror stay in correspondence with the moderation cams. It is housed in the spring hole with a coil spring, and is slid on the moderation cam by the biasing force of the coil spring to form a moderation mechanism.Furthermore, the operating lever is directed from the inside of the door toward the mirror visor and penetrates the mirror stay. The spherical part is supported by a spherical bearing formed by a mirror stay and a bush attached to the mirror stay, and the spherical part is attached to the mirror stay so as to be rotatable around the axis and at least in the front-back direction using the spherical part as a fulcrum. , a connecting pin is provided at the tip of the operating lever, an engaging recess for engaging the connecting pin is integrally formed in the mirror holder, and the connecting pin and the engaging recess constitute a connecting portion between the operating lever and the mirror holder; The vehicle is also characterized in that the operating knob is fixed to the end of the operating lever on the vehicle interior side. Therefore, according to the present invention,
Since the mirror visor is supported by two pairs of upper and lower rotating shafts, sufficient strength can be obtained without increasing the size of the support part, and the moderation mechanism consisting of a combination of a moderation cam and a moderation piece is connected to the outer surface of the mirror stay and the mirror. Since it is provided between the mirror and the outer circumferential surface of the visor, the area of the mirror is not restricted, and a mirror with a wide area can be used.

(Example) The present invention will be specifically described below with reference to an example shown in the drawings. This embodiment relates to a tiltable door mirror that allows the attitude of the mirror to be manually adjusted from inside the vehicle.

In the figure, 1 is a mirror stay, 2 is a mirror visor, 3 is a mirror, and 4 is a door. The mirror stay 1 is attached to the outer surface of the door 4 with screws 5, and support arms 6 and 7 are provided that project horizontally from the upper and lower parts of the mirror stay 1. 7 each has a short protruding shaft 8 formed toward the inner surface. On the other hand, the vertical height of the mirror visor 2 is determined by the support arms 6 and 7.
The mirror visor 2 is inserted between the support arms 6 and 7, and the mirror visor 2 is inserted between the support arms 6 and 7. into the shaft hole 9 and rotate the rotating shaft part 1.
0, the mirror visor 2 is rotatably attached to the mirror stay 1. The mirror stay 1 is formed with an outer surface 11 made of a cylindrical concave surface whose axis coincides with the axis of the rotating shaft part 10, and the mirror visor 2 is formed with an outer circumferential surface 12 made of a cylindrical convex surface corresponding to the outer surface 11. formed, the outer surface 11
and outer circumferential surface 12 are opposed to 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. The mirror visor 2 has an elongated shape in the left-right direction, and the ball bearing part 15 is provided at a position considerably eccentric from the axis of the rotating shaft part 10 provided near the mirror stay 1. Incidentally, tapered surfaces 17 are formed on both upper and lower edges of the outer circumferential surface 12 of the mirror visor 2, and U-shaped notch grooves 18 are provided to surround the shaft hole 9 to increase flexibility. The mirror visor 2 can be easily inserted between 6 and 7.

21 has a circular arc surface that coincides with the outer peripheral surface 12;
The mirror visor 2 is a moderation cam that is integrally formed inside the mirror visor 2. A roller-shaped moderation piece 22 is housed in a spring hole 23 provided in the mirror stay 1 corresponding to the moderation cam 21 together with a coil spring 24, and is slid against the moderation cam 21 by the biasing force of the coil spring 24. These moderation cam 21, moderation piece 22, and coil spring 2 are in contact with each other.
4 constitutes a moderation mechanism 25. The moderation cam 21 is provided with a V-shaped moderation groove 26 with which the moderation piece 22 engages when the mirror device is in a normal use state, that is, when the mirror visor 2 is in the normal position and in the solid line state in FIG. . A spring cover 27 is fixed to the mirror stay 1 with screws 28.

Reference numeral 31 denotes an operating lever, which passes through the mirror stay 1 from the inside of the door 4 toward the mirror visor 2, and supports a spherical portion 32 with a spherical bearing 34 formed by the mirror stay 1 and a bushing 33 attached thereto. As a result, the mirror stay 1 is attached to the mirror stay 1 so as to be rotatable about the axis and at least in the front-back direction using the spherical portion 32 as a fulcrum. A connecting pin 35 is provided at the tip of the operating lever 31, and an engaging recess 36 into which the connecting pin 35 engages is integrally formed in the mirror holder 14. Connecting portion 37 between 31 and mirror holder 14
is configured. This connecting portion 37 is connected to the rotating shaft portion 1
The connecting pin 35 has a round bar shape along the axial direction of the rotating shaft portion 10, and the engaging recess 36 has a box shape with an opening 36a in the direction of the connecting pin 35. The length of the connecting pin 35 is selected to exceed its diameter, and the engaging recess 36
Correspondingly, the connecting pin 35 has a rectangular shape that allows the connecting pin 35 to be engaged with some margin. An operating knob 38 is fixed to the end of the operating lever 31 on the vehicle interior side with a countersunk screw 39. Note that 4a is an outer panel of the door 4, 4b is an inner panel, and 4c is an interior material.

In the above configuration, when the operating knob 38 is operated and the operating lever 31 is rotated about its axis, the connecting pin 35 rotates and the engaging recess 36 engaged with the connecting pin 35 rotates, and the mirror holder 14 becomes a ball. It tilts in the vertical direction using the bearing part 15 as a fulcrum. Furthermore, when the operation knob 38 is rotated in the front-rear direction, that is, in the up-down direction in FIG. tilt horizontally. In this way, mirror holder 1
4. Therefore, the attitude of the mirror 3 can be arbitrarily adjusted by remote control from the passenger compartment side.

Here, if an external force is applied to the mirror visor 2 to cause it to rotate around the rotating shaft part 10, if the external force exceeds a certain value, the moderation piece 22 will move into the moderation groove 2.
6, the mirror visor 2 is in a state where it can freely rotate, and it is also possible to tilt it down to the position shown by the chain line in FIG. 2, for example. At this time, the connecting portion 37 is located on the axis of the rotating shaft portion 10,
Moreover, since the combination of the connecting pin 35 and the engaging recess 36 constitutes a type of universal joint that can be bent in the horizontal direction, rotation of the mirror visor 2 is not hindered. Further, when the external force is small, the mirror visor 2 is tilted at a small angle, and when the external force is removed, the moderation piece 22 pushes the inclined surface of the moderation groove 26, so that the mirror visor 2 automatically returns to its original position.

In the embodiment, a protruding shaft 8 is provided on the support arms 6, 7 side of the mirror stay 1, and a shaft hole 9 is provided on the mirror visor 2 side to constitute the rotating shaft portion 10, but the protruding shaft and the shaft hole are The moderation mechanism 25 is constructed by providing the moderation cam 21 on the mirror visor 2 and the moderation piece 22 on the mirror stay 1, but the arrangement of the moderation cam and the moderation piece can be reversed. You can also do that.

(Effects of the Invention) As described above, according to the present invention, since the mirror visor is supported by two sets of upper and lower rotating shaft parts,
The structure is simple and the space is small, but sufficient support strength can be obtained, and the space where the outer surface of the mirror stay and the outer peripheral surface of the mirror visor face each other is effectively used to separate the moderation cam and moderation piece. Since it is equipped with a moderation mechanism, the mirror size is not restricted and the effective area is not narrowed, making it possible to use a mirror with a wide area, increasing the support strength of the mirror visor and providing good visibility. This makes it possible to easily obtain a tilting mirror device.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention;
FIG. 2 is a partially cutaway sectional view taken along line A--A in FIG. 1. 1...Mirror stay, 2...Mirror visor,
3...Mirror, 4...Door, 6, 7...Support arm, 8...Protruding shaft, 9...Shaft hole, 10...Rotating shaft portion, 11...Outer surface, 12...Outer peripheral surface, 21 ……
Moderation cam, 22... Moderation piece, 24... Coil spring, 25... Moderation mechanism, 26... Moderation groove.

Claims (1)

[Claims] 1. Insert the mirror visor 2 between the support arms 6 and 7, fit the protruding shaft 8 into the shaft hole 9, and attach the rotating shaft portion 1.
0, the mirror visor 2 is rotatably attached to the mirror stay 1, the mirror stay 1 is formed with an outer surface 11 consisting of a cylindrical concave surface that coincides with the axis and the axis of the rotating shaft part 10, and the mirror visor 2 is provided with an outer surface 11. An outer circumferential surface 12 consisting of a cylindrical convex surface corresponding to 11 is formed, and both outer surfaces 11 and 12 are opposed to each other, and the mirror 3 is held in a mirror holder 14, and the mirror holder 14 is attached to a mirror visor via a ball bearing part 15. The mirror visor 2 is tiltably supported on a mounting plate 16 attached to the mirror stay 1, and the ball bearing part 15 of the mirror visor 2 is provided at a position considerably eccentric from the axis of the rotating shaft part 10 provided near the mirror stay 1. Both upper and lower edges of the outer circumferential surface 12 side of the mirror visor 2 are formed into tapered surfaces 17, and two moderation cams having circular arc surfaces that coincide with the outer circumferential surface 12 are integrally formed inside the mirror visor 2. The moderation piece 22 is stored together with the coil spring 24 in the spring hole 23 provided in the mirror stay 1 corresponding to the moderation cam 21, and the moderation mechanism 25 is slid onto the moderation cam 21 by the biasing force of the coil spring 24. Further, the operating lever 31 is directed from the inside of the door 4 toward the mirror visor 2 and passes through the mirror stay 1, and the spherical portion 32 is connected to a spherical bearing 34 formed by the mirror stay 1 and a bushing 33 attached thereto. The operating lever 3 is supported and attached to the mirror stay 1 so as to be rotatable about the axis and at least in the front-rear direction using the spherical part 32 as a fulcrum.
A connecting pin 35 is provided at the tip of the mirror holder 14 , and an engaging recess 36 for engaging the connecting pin 35 is integrally formed with the mirror holder 14 . A tilting mirror device comprising a connecting portion 37 and an operating knob 38 fixed to the end of the operating lever 31 on the vehicle interior side.