JP2000142232A - Mirror device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the load resistance of a waterproof boot by miniaturizing it. SOLUTION: The tilt center P of a tilting member comprising a mirror body 2, a mirror holder 3 and the like is located near a through hole of the mirror holder 3. As the result, when the mirror body 2, the mirror holder 3 and the like are tilted, the movement of the edge of the through hole of a mirror holder is reduced enabling reducing the internal diameter of the through hole and the size of a waterproof boot. Also, reducing the movement of the waterproof boot reduces the load resistance due to the movement of the waterproof boot, and the operation capability of a power unit will increase if the power unit is utilized for the automobile mirror device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mirror device for a vehicle, such as a rear under mirror device for a vehicle, which visually recognizes a rear lower part of the vehicle. The present invention relates to an automobile mirror device capable of reducing a load resistance caused by a vehicle.

[0002]

2. Description of the Related Art A mirror device for an automobile of this type will be described below with reference to FIGS. In this example, a rear under-mirror device of a one-box car, an RV vehicle, or the like C will be described.

In FIG. 1, reference numeral 100 denotes a stay having one end attached to a rear upper portion of a vehicle body of a one-box car, an RV car, or the like. A mirror housing 102 is fixed to the other end of the stay 100. Inside the mirror housing 102, a power unit 1 as an angle adjusting mechanism is provided.
A mirror holder (backboard) 104 for holding the mirror body 101 is attached to the power unit 103 via a pivot mechanism 105 and an advancing / retracting rod 106 so as to be adjustable in angle.
The power unit 103 described above is provided with, for example, a left-right moving rod, not shown, for example, in addition to the vertically moving rod 106 shown in the drawing.

[0004] With this vehicle mirror device, the driver's eye point E.E. FIG. 11 below the rear part of C such as a one-box car or an RV car from P via the mirror body 101
In addition, the range indicated by the broken line in FIG. Here, by driving the above-mentioned power unit 103 to move the vertical moving rod 106 forward and backward, the mirror body 101 moves through the horizontal axis (the center of the pivot mechanism 105 and the horizontal moving rod) via the mirror holder 104. (The axis connecting to the center of FIG. 14) downward (in a state shown by a dashed line in FIG. 14) or upward (a state shown by a two-dot chain line in FIG. 14). The mirror body 101 is moved leftward or rightward about a vertical axis (an axis connecting the center of the pivot mechanism 105 and the center of the vertical movement rod 106) by moving the left / right movement rod. To tilt. As a result, by adjusting the angle of the mirror body 101, the one-box car or the RV
The field of view (viewable range) below the rear of the car C is shown in FIG.
12 and FIG. 1 from the range indicated by the broken line in FIG.
3 is expanded to the range indicated by the one-dot chain line and the range indicated by the two-dot chain line. For example, by tilting the mirror body 101 to the left,
By tilting the mirror body 101 to the right, the mirror body 101 is expanded in the range indicated by the two-dot chain line.

[0005] In the above-mentioned mirror device for automobiles, the eye point E.E. The size of the mirror body 101 is limited to a certain extent so that the mirror body 101 does not hinder the direct back view when viewing the back directly from P. For this reason, by forming the reflecting surface of the mirror body 101 with a curved surface having a small radius of curvature, the mirror body 1 having a limited size
01, the tiltable mirror body 10 described above.
The synergistic action with 1 allows visual recognition over a wide range.

[0006]

However, in the above-described mirror device for an automobile, the mirror body 101 for housing the power unit 103 is on the fixed side together with the power unit 103 and the stay 100.
When the mirror body 101 is tilted with respect to the mirror housing 102, the edge of the mirror body 101 is positioned at the opening edge of the mirror housing 102. May go inside. For example, FIG.
When the mirror body 101 is tilted downward as shown by a dashed line therein, the lower edge of the mirror body 101 enters inside the lower opening edge of the mirror housing 102. Further, as shown by a two-dot chain line in FIG. 14, when the mirror body 101 is tilted upward, the upper edge of the mirror body 101 may enter inside the upper opening edge of the mirror housing 102. If the edge of the mirror body 101 enters inside the opening edge of the mirror housing 102, there is a problem that the opening edge of the mirror housing 102 is reflected on the mirror body 101 and hinders the view. In particular, in the case of the mirror body 101 having a small radius of curvature, obstruction of the field of view due to the angle adjustment of the mirror body 101 described above becomes remarkable.

Therefore, there has been proposed a mirror device for an automobile which can widen the range of the field of view without hindering the field of view by adjusting the angle of the mirror body. This automobile mirror device has a stay of a fixed member, one end of which is attached to a vehicle body, a mirror body, and a through hole through which the other end of the stay is inserted. A tilting member movably attached, a waterproof boot interposed between the stay and a peripheral edge of a through hole of the tilting member, and by tilting the tilting member with respect to a stay of the fixed member. The angle of the mirror body can be adjusted.

In this mirror apparatus for an automobile, since the mirror housing on the fixed side is eliminated, when the tilting member having the mirror body is tilted with respect to the stay of the fixing member, the edge of the mirror body is fixed. It does not penetrate inside the opening edge of the mirror housing on the side. Therefore, the range of the field of view can be expanded without hindering the field of view due to the angle adjustment of the mirror body.

The present invention relates to an improvement of the above-described mirror device for a vehicle, and an object of the present invention is to provide a mirror device for a vehicle capable of reducing the size of a waterproof boot and reducing the load resistance due to the movement of the waterproof boot. Is to do.

[0010]

In order to achieve the above-mentioned object, the present invention is characterized in that the tilting center of a tilting member having a mirror body is located near a through hole of the tilting member.

As a result, when the tilting member having the mirror body is tilted, the movement of the edge of the through hole of the tilting member is reduced, and the inner diameter of the through hole can be reduced accordingly. In addition, the waterproof boot can be downsized. Also, since the movement of the waterproof boots can be reduced,
The load resistance due to the movement of the waterproof boot can be reduced.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG.
In this example, a rear under-mirror device of a one-box car, an RV vehicle, or the like C will be described. In the figures, FIGS. 11 to 1
The same reference numerals as 4 denote the same components. 5 to 10
In the exploded perspective view of FIG. 2, the center axis OO is connected to form the automobile mirror device of the present invention in this embodiment.

In FIG. 1, reference numeral 1 denotes a stay of a hollow cylindrical pipe (pipe). One end of this stay 1 is a vehicle body (not shown)
Attached to. On the other end of the stay 1, a mirror body 2 is provided so as to be capable of adjusting the angle via a mirror holder 3 and a power unit 4 (and a clutch mechanism 5 and a mirror holder base 6) as an angle adjusting mechanism.

The above-mentioned mirror body 2 is shown in FIGS.
As shown in FIG. 5 and a reflection surface (mirror surface) of a convex curved surface having a small radius of curvature is formed on the surface. on the other hand,
As shown in FIGS. 1 to 3 and FIG. 9, the above-mentioned mirror holder 3 has a housing shape in which a front surface 30 is open and a rear portion is closed. A hook 31 and a plurality of ribs 32 (not shown in FIG. 9) are integrally provided in a front opening 30 of the mirror holder 3. A mirror body 2 is provided between the hook portion 31 and the rib 32.
Is fixed by an adhesive (or other fixing means) via a tape 20. As a result, the mirror body 2 is held by the housing-shaped mirror holder 3.

The above-described power unit 4 is disposed in a room 21 defined by the mirror body 2 and the mirror holder 3. This power unit 4 is shown in FIG.
As shown in FIG. 6 and FIG.
00 and 401 are fixed together by a screw 402. The housings 400 and 401 have two motors 41 and 42 and two advance / retreat rods 410 and 420, respectively.
And two sets of driving force transmission mechanisms (first gear (worm) 41)
1, 421, the second gear (in which the helical gear of the worm wheel and the spur gear of the idle gear are coaxially integrated) 412, 422, and the third gear (the outer peripheral gear and the inner peripheral gear are integrated) 413, 423) and two cross springs 414, 424.
And two packings 415 and 425 are respectively built-in.

The harness cord 43 connected to the two motors 40 and 41 is once drawn out of the housings 400 and 401 of the power unit 4 and is inserted into the shaft 50 (that is, the power unit 4) and the stay 1 described later. It is inserted and electrically connected to a power supply (not shown).

The above-mentioned power unit 4 is attached to the other end of the stay 1 via a clutch mechanism 5 so as to be rotatable around a central axis OO of the other end of the stay 1.
As shown in FIGS. 4 and 6, the clutch mechanism 5 includes a shaft 50 fixed to the stay 1 and a bracket 51 fixed to the power unit 4.

The above-mentioned shaft 50 is one more than the stay 1.
It is composed of a hollow cylindrical tube (pipe) having a small circumference, and a disk 500 is integrally provided at an intermediate portion. On the circumference of one surface of the disk 500 (the surface opposite to the stay 1), small circular concave portions 501 are continuously provided. One end of the shaft 50 is connected to the other end of the stay 1 by, for example, three screws 50.
2 and the shaft 50
And the disk 500 are housed in the housings 400 and 401 of the power unit 4, and the other end of the shaft 50 is connected to the housing 40 of the power unit 4.
0, 401. In addition, this shaft 5
The central axis 0 and the central axis OO at the other end of the stay 1 coincide with each other, and the harness cord 43 is inserted through the shaft 50 and the stay 1.

On the other hand, the above-mentioned bracket 51 has a triangular plate shape, and has a circular through hole 510 in the center.
The bracket 51 is connected to the shaft 5 through the through hole 510.
0 around the center axis OO (in the direction of the arc arrow in FIG. 6)
And is fixed to one housing 401 of the power unit 4 by a screw 511 so as to be rotatable and movable in the direction of the central axis OO (the direction of the straight arrow in FIG. 6). One surface of the bracket 51 (the shaft 50
For example, three small balls (steel balls) 512 are incorporated so as to be able to roll at equal intervals and correspond to the concave portions 501 of the shaft 50.

A push nut 52 is fixed to the other end of the shaft 50. A compression coil spring 53 and a washer 54 are interposed between the push nut 52 and the bracket 51. Due to the spring force of the spring 53, the bracket 51
Is pressed against the disc 500 side, and the ball 512 is
Fits. As a result, the power unit 4
At the other end via a clutch mechanism 5 so as to be rotatable around the central axis OO.

The mirror holder 3 holding the above-mentioned mirror body 2 is mounted on the power unit 4 mounted on the stay 1 so as to be adjustable in angle by a pivot mechanism 63, as shown in FIGS. 4 and 7 to 10. Have been. That is, the mirror holder base 6 is fixed to the rear inner surface of the mirror holder 3 by the screw 60. A spherical portion 61 is integrally provided at the center of the mirror holder base 6. The ball 61 and the mirror holder 3
In the center of the rear part, circular through holes 62 and 33 having an inner diameter larger than the outer diameter of the stay 1 and the shaft 50 are provided, respectively. The other end of the stay 1 and one end of the shaft 50 are inserted into the through hole 33 of the mirror holder 3 and the through hole 62 of the mirror holder base 6, respectively.

A spherical recess 44 is integrally provided at the center of one housing 401 of the power unit 4. The spherical portion 61 of the mirror holder base 6 is attached to the spherical concave portion 44 of the power unit 4 by a spherical convex washer 45, a compression coil spring 46, and a flat washer 47 so that the angle can be adjusted. That is, the spherical convex washer 4
Spring 46 interposed between 5 and flat washer 47
The flat washer 47 is pressed against the other end surface of the stay 1 to receive a reaction force by the spring force, while the spherical convex washer 45 presses the spherical portion 61 of the mirror holder base 6 toward the spherical concave portion 44 of the power unit 4. . As a result, the spherical portion 61 of the mirror holder base 6 is pressed and held between the spherical convex washer 45 and the spherical concave portion 44 of the power unit 4 so that the angle can be adjusted, and the mirror holder 3 can adjust the angle to the power unit 4. It will be attached to. In addition,
The through hole 440 of the spherical concave portion 44, the through hole 450 of the spherical convex washer 45, the flat washer 47 in the compression coil spring 46.
One end of the shaft 50 is inserted into each of the through holes 470.

Further, the above-described spherical concave portion 44 of the power unit 4, the spherical portion 61 of the mirror holder base 6, the spherical convex washer 45, the spring 46, and the flat washer 47 constitute the above-mentioned pivot mechanism 63. The center P of the pivot mechanism 63 (the center of the spherical concave portion 44, the spherical portion 61, and the spherical convex washer 45) P
Is a through hole 3 of the mirror holder 3 through which the other end of the stay 1 is inserted.
3 is located in the vicinity.

The mirror holder base 6 is provided with two spherical concave portions 64, respectively, and the two spherical concave portions 64 are provided with the two reciprocating rods 41 of the power unit 4.
The ball portions 0 and 420 are rotatably fitted. The mirror holder base 6 has a cylindrical shape (round pin) and a bifurcated cross section on the above-mentioned two oblique axes (an axis connecting the center P of the pivot mechanism 63 and the centers of the two spherical recesses 64). Are provided two each. The four elastic projections 65 are elastically fitted into four recesses (not shown) provided in one housing 401 of the power unit 4. The resilient convex portion 65 of the mirror holder base 6 and the concave portion of the power unit 4 in the elastically fitted state allow the advancing / retreating rod 41 of the power unit 4 to move.
The movement of 0 and 420 serves as a guide (positioning) for tilting the mirror holder base 6 and the mirror body 2.

In the drawing, reference numeral 7 denotes a bellows-shaped waterproof boot. One end of the waterproof boot 7 is fixed to the other end of the stay 1 on the fixed side (in some cases, fixed via a fixing ring (not shown)) as shown in FIGS. The other end of the waterproof boot 7 is pinched and fixed (or elastically pinched and fixed) to the periphery of the through hole 33 of the movable mirror holder 3 by a plurality of engaging claws 34. Waterproof. In FIGS. 4 and 9, reference numeral 35 denotes a through hole for removing a mold for forming the engaging claw 34.

The vehicle mirror device according to the present invention in this embodiment has the above-described configuration, and its operation will be described below. First, the first of the power unit 4
When the motor 41 is driven, the driving force of the first motor 41 is transmitted to the first reciprocating rod 410 via the driving force transmission mechanisms 411, 412, 413, and the first reciprocating rod 4
10, the mirror body 2 moves along the mirror holder base 6 and the mirror holder 3 and the first oblique axis (the axis connecting the center P of the pivot mechanism 63 and the center of the spherical portion of the second advance / retreat rod 420). ) Tilt around. When the second motor 42 of the power unit 4 is driven,
The driving force of the motor 42 is the driving force transmission mechanism 421, 422,
The mirror body 2 is transmitted to the second advance / retreat rod 420 via the mirror holder 423 and the second advance / retreat rod 420 advances and retreats. (The axis connecting the center P of the first moving rod 410 and the center of the spherical portion of the first moving rod 410).

By adjusting the angle of the mirror body 2, the field of view (the range that can be visually recognized) at the rear lower portion of the one-box car, the RV car, or the like C is the range shown by the broken lines in FIGS. Accordingly, the range is expanded to a range indicated by a dashed line and a range indicated by a dashed line in FIGS. 12 and 13.

In the above embodiment, the mirror body 2, the mirror holder 3, the mirror holder base 6 and the like constitute a tilting member, while the stay 1, the power unit 4 and the like constitute a fixing member. is there.

As described above, the mirror apparatus for an automobile according to the present invention in this embodiment includes the center P of the pivot mechanism 63.
Through the through hole 3 of the mirror holder 3 through which the other end of the stay 1 is inserted.
3, the movement of the edge of the through hole 33 of the mirror holder 3 when the mirror body 2 and the mirror holder 3 are tilted can be reduced, and the inner diameter of the through hole 33 can be reduced accordingly. Waterproof boot 7 can be downsized,
The waterproof boots 7 that are well balanced in design can be obtained. Further, since the movement of the waterproof boot 7 can be reduced, there is an effect that the load resistance due to the movement of the waterproof boot 7 is small and the operability of the power unit 4 is correspondingly improved.

In particular, in the vehicle mirror apparatus of the present invention in this embodiment, the mirror unit 2 is driven together with the housing-like mirror holder 3 and the mirror holder base 6 by driving the power unit 4.
And with respect to the stay 1. As a result,
The vehicle mirror device of the present invention in this embodiment is:
Since the housing-like mirror holder 3 for accommodating the power unit 4 is on the tilting side, the mirror body 2 for accommodating the power unit 4 and being on the fixed side together with the power unit 4 and the stay 1 has been eliminated, so that the mirror body 2 has a mirror holder. When tilted with respect to the power unit 4 and the stay 1 together with the mirror holder 3 and the mirror holder base 6, the edge of the mirror body 2 does not enter inside the opening edge of the mirror housing on the fixed side.
Therefore, the range of the field of view can be widened without hindering the field of view due to the angle adjustment of the mirror body 2.

In the mirror device for an automobile according to the present invention in this embodiment, a tilting member composed of the mirror body 2, the mirror holder 3, the mirror holder base 6, etc., using the power unit 4 as an angle adjusting mechanism. Is performed by remote control, but the vehicle mirror device of the present invention can also be applied to a vehicle mirror device in which the angle of the tilting member is manually adjusted without using the power unit 4. .

In the above embodiment, the rear under-mirror device for an automobile used for a one-box car, an RV vehicle, or the like has been described. The present invention can be applied to other automobiles other than C, and also to other mirror devices other than the rear under mirror device.

[0033]

As described above, the automobile mirror device of the present invention has the mirror body since the tilt center of the tilt member having the mirror body is located near the through hole of the tilt member. When the tilting member is tilted, the movement of the edge of the through hole of the tilting member is reduced, so that the inner diameter of the through hole can be reduced accordingly, and the waterproof boot can be downsized. Also, since the movement of the waterproof boots can be reduced,
The load resistance due to the movement of the waterproof boot can be reduced.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view showing an embodiment of an automobile mirror device of the present invention.

FIG. 2 is a partial cross-sectional view showing a state where a mirror body and the like are tilted downward.

FIG. 3 is a partial cross-sectional view showing a state where a mirror body and the like are tilted upward.

FIG. 4 is a partial sectional view of a power unit, a mirror holder base, and the like.

FIG. 5 is an exploded perspective view of the mirror body.

FIG. 6 is an exploded perspective view of a part of the power unit and a clutch mechanism.

FIG. 7 is an exploded perspective view of a main part of the power unit.

FIG. 8 is an exploded perspective view of the mirror holder base.

FIG. 9 is an exploded perspective view of the mirror holder.

FIG. 10 is an exploded perspective view of a part of a stay and pivot mechanism and a waterproof boot.

FIG. 11 is an explanatory side view showing a range of a field of view of a rear under mirror device such as a one-box car or an RV car.

FIG. 12 is an explanatory plan view showing a range of the field of view of a rear under mirror device such as a one-box car or an RV car and a state where the field of view is widened when the mirror body is tilted.

FIG. 13 is an explanatory rear view showing a range of the field of view of a rear under mirror device such as a one-box car or an RV car, and a state where the field of view is widened when the mirror body is tilted.

FIG. 14 is a partial sectional view showing a conventional automobile mirror device.

[Explanation of symbols]

C: One box car or RV vehicle, 1: Stay, 2: Mirror body, 21: Indoor, 3: Mirror holder, 4: Power unit (angle adjusting mechanism), 410, 420 ... Reciprocating rod, 43: Harness cord, 5 ... Clutch mechanism, 50
... shaft, 501 ... recess, 51 ... bracket, 512
... Ball, 6 ... Mirror holder base, 63 ... Pivot mechanism, 65 ... Elastic convex part, OO central axis, P ... Center of pivot mechanism.

Claims (1)

[Claims] 1. A stay as a fixed member having one end attached to a vehicle body, a mirror body, and a through hole through which the other end of the stay is inserted is provided, and the other end of the stay can be adjusted in angle. An attached tilting member, comprising a waterproof boot interposed between the stay and a peripheral edge of a through hole of the tilting member, by tilting the tilting member with respect to a stay of the fixing member, An automotive mirror device capable of adjusting the angle of a mirror body, wherein a tilt center of the tilting member having the mirror body is positioned near a through hole of the tilting member.