JP2582717Y2 - Outside mirror device for automobile - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outside mirror device for an automobile, wherein a mirror projecting from the width of the automobile is displaced by driving means and external force.

[0002]

2. Description of the Related Art Currently, outside mirror devices for automobiles are provided with a retractable type (buffer type) as a safety measure against pedestrians.
According to security standards, if the mirror is mounted at a height of 1.8 m or less above the ground, it can be displaced sufficiently with a force of 25 kgf or less when receiving an unexpected external force from the front. In addition, it is specified that the structure has a structure to reduce the impact.

Conventionally, as this kind of outside mirror device, there is an invention as shown in FIGS. 6 and 7 disclosed in Japanese Patent Application Laid-Open No. 3-25041. In other words, this device has a support stay 3 formed in a substantially U-shape and supporting the outside mirror 1 and having a lower end pivotally connected to the vehicle body 2 by a pole joint structure A, and a base end pivotally connected to an upper portion of the vehicle body 2. B, an auxiliary stay 4 pivotally attached to the upper end of the support stay 3 at the upper end of the support stay 3, and an auxiliary stay 4 pivotally connected to the auxiliary stay 4 and provided on an upper portion of the vehicle body 2; And a stay driving unit 5 that swings the support stay 3 by swinging.

When an unexpected external force is applied to the outside mirror 1 or the support stay 3 when the stay drive unit 5 is not operated, the support stay 3 is connected to the vehicle body pivoting portion A at the lower end and to the upper end at the upper end. Rotationally displaces with the auxiliary stay pivot portion C as a fulcrum, and external force is reduced. When the stay drive unit 5 is operated, the auxiliary stay 4 is set with the body stays A and B of the support stay 3 and the auxiliary stay 4 as fulcrums.
, The support stay 3 is rotated and displaced, and the outside mirror 1 is stored inside the vehicle width.

[0005]

However, in the prior art, when an external force is applied to the support stay 3, the support stay 3 is rotated and displaced about a vertical collapsible axis M, and the support stay 3 is moved out. When the side mirror 1 is stored, since the support stay 3 is configured to be rotationally displaced about the storage axis N inclined at a predetermined angle, pole joints A, B, and C with each vehicle body are provided with pole joints. I have to adopt a structure.

Further, in addition to the use of the pole joint structure, a support stay 3 for supporting the outside mirror 1 is provided.
The auxiliary stay 4 is connected to the upper arm of the support stay 4, and the stay driving unit 5 is connected to an intermediate portion of the auxiliary stay 4. Therefore, the upper arm of the support stay 3 and the auxiliary stay 4 are connected.
Is longer. Accordingly, there is a problem that the outside mirror 1 vibrates during traveling, and particularly when traveling at high speed, the vibration increases, and the image of the rear view becomes unstable.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has a substantially U-shape in which an outside mirror (11) is supported on a vertical arm (10B). Arm (10) of the support stay (10)
A) The tip is pivotally attached to the vehicle body so as to rotate only in the horizontal direction, and the upper arm (10) of the support stay (10) is attached to the tip of an auxiliary stay (14) extending forward of the vehicle body (12).
C) By pivotally attaching the tip, the support stay (10) is rotatable around one axis (M).
0), one end of a drive lever (15) forming an acute angle in the vehicle width direction with the upper arm (10C) is pivotally connected to the tip of the auxiliary stay (14) to support the support stay (10) and the drive lever (1).
5) engage by frictional force so that and rotate integrally,
The other end of the drive lever (15) is connected to the drive unit (19) by a link mechanism, and when a force equal to or more than a predetermined value acts on the support stay (10), the support stay (10) is connected to the axis (M). ) Is provided on the outside mirror device for automobiles which can be tilted around.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS. 1 to 5. In the drawings, reference numeral 10 denotes a support stay for supporting an outside mirror 11, and a metal pipe is substantially coaxial. The vertical arm 10B is formed by bending a lower arm 10A, a vertical arm 10B, and an upper arm 10C, and a mirror 11 is attached to the vertical arm 10B. The lower end of the support stay 10, that is, the tip of the lower arm 10A, is pivotally connected to a pivot shaft 13 so as to rotate only horizontally in a front body of a vehicle body 12 such as a truck.

Reference numeral 14 denotes an auxiliary stay, the tip of which is pivotally attached to the upper end of the support stay 10, that is, the tip of the upper arm 10C so as to be rotatable about a pivot shaft A.
The base end of the auxiliary stay 14 is fixed to the front body of the vehicle body 12. The support stay 10 is located on a vertical axis connecting the lower end of the support stay 10 to the vehicle body 12 and the pivot axis A between the upper end of the support stay 10 and the tip of the auxiliary stay 14. Is configured such that the axis M for rotation of the.

Reference numeral 15 denotes a driving lever, the tip of which is supported by the support stay 1 so that it can rotate integrally with the support stay 10.
0 at a predetermined acute angle in the vehicle width direction and in a frictionally engaged state with the tip of the upper arm 10C so as to be rotatable with the tip of the auxiliary stay 14 by the pivot shaft A. The driving lever 15 is pivotally connected to the distal end of the first driving link rod 16 so as to be pivotable.

Reference numeral 17 denotes a second drive link rod, the tip of which is rotatably connected to the base end of the first drive link rod 16, and the base end of which is a motor mounted on a roof panel of the vehicle body 12. 18 is fixed to the rotating shaft 18a,
The drive unit 1 of the drive lever 15 is driven by the first and second drive link rods 16 and 17 and the motor 18.
9 are configured.

Here, the pivot axis A of the upper arm 10C of the supporting stay 10, the auxiliary stay 14, and the driving lever 15 is configured as shown in FIGS. That is, the upper arm 10C of the support stay 10 and the respective pivoted portions 10d and 14a of the auxiliary stay 14 are flatly pressed and formed with insertion holes 10e and 14b. In addition, a bifurcated mounting plate 15A,
15A are formed. Insert holes 20 are formed in both mounting plates 15A, and a rotation stopper 21 is provided on the upper surface of the upper mounting plate 15A.

Reference numeral 22 denotes a stepped pivot pin constituting the pivot shaft A, which comprises a disk-shaped head 23, a large-diameter trunk 24, and a screw part 25 smaller in diameter than the trunk 24. A part of the outer periphery of the head 23 is cut off linearly 23a, and the height of the large-diameter trunk portion 24 is set between the two mounting plates 15A, 15A of the driving lever 15. It is set to be the same as the height. Further, the insertion hole 10 of the support stay 10 is provided.
The diameter of “e” is formed to be the same as the diameter of the screw portion 25 of the pivot pin 22, and the diameter of the insertion hole 14 b of the auxiliary stay 14 is
The diameter of the insertion hole 20 of the drive lever 15 is set to be the same as the diameter of the large diameter body 24 of the pivot pin 22.

Reference numeral 26 denotes a bush with a flange, which is inserted from above into an insertion hole 14b provided in a pivot portion 14a of the auxiliary stay 14, and a wave washer 27,
The lower surface of the pivoting portion 14a is inserted into the space between the two mounting plates 15A of the driving lever 15 via the washer 28, and the pivoting pin 22 is inserted into the insertion hole 20, the flanged bush 26, and the washer 27 of the mounting plate 15A. The large-diameter trunk portion 24 is inserted, and the screw portion 25 projects from the lower mounting plate 15A of the drive lever 15. At this time, the cutout portion 23a of the head 23 comes into contact with the rotation stopper 21 of the mounting plate 15A and the pivot pin 22 cannot be rotated.

Further, the screw portion 25 of the pivot pin 22 is provided with a pivot portion 10d of the support stay 10 vertically.
The cap nut 32 is screwed into the screw portion 25 via a lock nut 31 and fastened. As a result, the support stay 10 is
5 and the driving lever 15 integrally with a predetermined frictional force.
The same movement as the above, and the support stay 10 and the driving lever 15
Can be freely rotated in the horizontal direction about the pivot pin 22 with respect to the auxiliary stay 14.

The tilting force of the support stay 10 can be changed by adjusting the tightening torque of the lock nut 31. When an external force exceeding a predetermined level is applied to the support stay 10, regardless of the drive lever 15, It can be set to rotate inside and outside the vehicle width. Incidentally, reference numeral 45 in the figure denotes a holding stay for reinforcement.

FIG. 5 shows another embodiment of the pivot shaft A.
A screw portion 33a is provided at the tip of the pivotal portion 14a of the auxiliary stay 14.
Is fixed upright, and a collar 34 is inserted into the insertion hole of the pivotally attached portion 10d of the support stay 10, and the flange portion is welded 35. The collar 34 is inserted into the pin 33 of the auxiliary auxiliary stay 14 via the washer 36 and the bush 37 with the flange.

When the insertion hole of the driving lever 15 is inserted into the collar 34 via the washer 38,
After the washer 39 is inserted on the drive lever 15, the lower lock nut 40 is screwed into a male thread portion formed at the upper end of the collar 34. Further, an upper lock nut 43 is screwed into a threaded portion 33a of the pin 33 protruding from the upper end of the collar 34 via a bush 41 with a flange and a washer 42 to integrate the whole. Therefore, the mutual rotational force between the support stay 10 and the catching stay 14 is limited to the upper lock nut 4.
The rotational force between the support stay 10 and the driving lever 15 can be adjusted by the tightening force of the lower lock nut 40.

Next, the operation of the above embodiment will be described. In a normal state, the rear view can be confirmed by projecting out of the width of the support stay 10.

When the mirror 11 is retracted, when the motor 18 is rotated at a predetermined rotation angle, the driving lever 15 is rotated inward of the vehicle width via the first and second driving link rods 16 and 17. , The supporting stay 10 connected to the driving lever 15 with a predetermined frictional force at the same time as the axis M
, And the mirror 11 is stored inside the vehicle width.

Further, when an external force greater than a predetermined value is applied to the support stay 10 or the mirror 11, particularly an external force in a direction outside the vehicle width, the frictional engagement with the driving lever 15 is released, and only the support stay 10 is moved along the axis M. And the impact from external force is reduced. That is, the driving lever 15 and the first and second driving link rods 16 and 1 are connected to the supporting stay 10 and the driving lever 15 via frictional force.
7 is retained as it is by the auxiliary stay 14 and remains there, and only the support stay 10 rotates, so that the driving lever 15 is not affected.

The upper arm 10C of the support stay 10
And one end of the driving lever 15 are connected to the tip of the auxiliary stay 14 so as to form an acute angle in the vehicle width direction, so that the upper arm 10 </ b> C and the driving lever 15 interfere with each other even when subjected to vertical vibration from the vehicle body 12. As a result, the support stay 10 is prevented from blurring due to interference, and the image of the rear view of the outside mirror 11 is stabilized.

[0023]

As described above, the outside mirror device for an automobile according to the present invention has a lower arm of a substantially U-shaped support stay (10) in which the outside mirror (11) is supported on the vertical arm (10B). (10A) The front end is pivotally attached to the vehicle body so as to rotate only in the horizontal direction.
2) The tip of the upper arm (10C) of the support stay (10) is pivotally attached to the tip of the auxiliary stay (14) extending forward, so that the support stay (10) can rotate around one axis (M). And the upper arm (10) of the support stay (10).
One end of a drive lever (15) that forms an acute angle with C) in the vehicle width direction is pivotally connected to the tip of the auxiliary stay (14) so that the support stay (10) and the drive lever (15) are integrally formed. When the other end of the driving lever (15) is connected to the driving unit (19) by a link mechanism and a force equal to or more than a predetermined value acts on the support stay (10). Is designed so that the support stay (10) can be tilted around the axis (M), so that the safety standard regarding the impact of the outside mirror can be satisfied, and the mirror can be electrically stored within the vehicle width. Needless to say, since the distal end of the upper arm of the support stay and the distal end of the drive lever are connected to the distal end of the auxiliary stay fixed to the vehicle body by the same pivot shaft, the auxiliary stay Of the vehicle to the front of the vehicle Never supporting force of the support stay is weakened be provided Te. Therefore, since the length of the upper arm of the support stay can be shortened in inverse proportion to the length of the auxiliary stay, the outside mirror does not vibrate, and there is an effect that a stable rear view can be secured even at high speed running. .

Further, the outside mirror device for an automobile according to the present invention is arranged such that the upper arm of the support stay and one end of the driving lever form an acute angle in the vehicle width direction as described above.
The upper stay and the drive lever do not interfere with each other even if it receives vertical vibration from the vehicle body because it communicates with the tip of the auxiliary stay, preventing blurring of the support stay due to the interference and improving the rear view of the outside mirror. There is a stabilizing effect.

Further, since the rotation axis when the support stay is retracted and the rotation axis when the support stay is collapsible are the same axis, all the rotation of the support stay is performed in the horizontal direction, so that the pole joint structure is unnecessary. Thus, there is an effect that a simple and inexpensive mirror device can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of an outside mirror device according to the present invention applied to an automobile.

FIG. 2 is a plan view of the outside mirror device.

FIG. 3 is a longitudinal sectional view of a connecting portion of the outside mirror device.

FIG. 4 is an exploded perspective view of the connecting portion.

FIG. 5 is a longitudinal sectional view showing another embodiment of the connecting portion.

FIG. 6 is a perspective view in which a conventional outside mirror device is applied to an automobile.

FIG. 7 is an operation explanatory view of the outside mirror device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Support stay 10A Lower arm 10B Vertical arm 10C Upper arm 11 Outside mirror 12 Body 13 Bearing part 14 Auxiliary stay 15 Drive lever 16 First drive link rod 17 Second drive link rod 18 Motor 19 Drive unit

Continuation of the front page (56) References JP-A-2-12843 (JP, U) JP-A 2-114396 (JP, U) JP-A 63-109017 (JP, U) JP-A 62-68838 (JP) , U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B60R 1/06

Claims (1)

(57) [Scope of request for utility model registration] A substantially U-shaped support stay (10) in which an outside mirror (11) is supported on a vertical arm (10B).
The upper arm (10C) of the supporting stay (10) is attached to the tip of an auxiliary stay (14) extending forward of the vehicle body (12) while the tip of the lower arm (10A) of the supporting stay (10A) is pivotally connected to the vehicle body so as to rotate only in the horizontal direction. Attach the tip to the support stay (1
0) is rotatable about one axis (M). Further, one end of a driving lever (15) which forms an acute angle with the upper arm (10C) of the support stay (10) in the vehicle width direction is assisted. The stay (14) is pivotally attached to the tip of the stay (14), and the support stay (10) and the drive lever (15) are engaged by frictional force so as to rotate integrally, and the other end of the drive lever (15) is connected. A link mechanism is connected to the drive unit (19) so that when a force equal to or more than a predetermined value acts on the stay (10), the support stay (10) is tiltable about the axis (M). Outside mirror device for automobiles.