JPH09207668A - Boot fixing structure in motor-driven storage and manual mirror surface adjusting type mirror device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealing performance and eliminate wind noise. SOLUTION: One end flange part 71 of a boot 7 is pressed and fixed between the flange part 49 of unit housings 44, 45 of a mirror assembly 4 and the peripheral edge of a side opening part 41 of a mirror housing 42. Accordingly, no clearance is produced among the flange part 71 of the boot 7, the flange part 49 of the unit housings 44, 45 of the mirror assembly 4 and the peripheral edge of the side opening part 41 of the mirror housing 42 so as to improve sealing performance, ensure fitting and fixing and also eliminate wind noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mirror device as an external rearview mirror mounted on, for example, a door or a fender of an automobile. In particular, the mirror surface of the mirror assembly can be manually moved in the left-right direction and the vertical direction. The present invention relates to an electrically retractable and manual mirror surface adjusting mirror device that can be adjusted and electrically retracts and restores a mirror assembly, and relates to a boot fixing structure with good sealing performance and no wind noise. .

[0002]

2. Description of the Related Art As a mirror device of this type, a mirror device for manually adjusting the mirror surface of a mirror assembly in the left and right direction and an up and down direction, and manually storing and returning the mirror assembly, and a mirror device for remote control. Adjust the mirror surface of the assembly left and right and up and down, or store the mirror assembly electrically.
There is a mirror device that restores it.

[0003]

However, conventionally, no mirror device has been developed which manually adjusts the mirror surface of the mirror assembly in the left-right direction and the up-down direction, and electrically stores and returns the mirror assembly.

Therefore, the applicant of the present invention is capable of manually adjusting the mirror surface of the mirror assembly in the left-right direction and the vertical direction, and is capable of storing and returning the mirror assembly electrically. Provided an adjustable mirror device.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a boot fixing structure having good sealing properties and no wind noise in the above-mentioned electric storage type / manual mirror surface adjusting type mirror device.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides that the peripheral edge of one open end of a boot is fixed by pressure contact between a mirror housing of a mirror assembly and a unit housing. Characterize.

As a result, the one opening end portion of the boot is firmly fixed to the mirror assembly to improve the sealing property, and the one opening end portion of the boot is fixed to the mirror assembly in a close contact state so that a gap is formed. There is no wind noise.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a boot fixing structure in an electrically retractable / manual mirror surface adjusting mirror device of the present invention will be described below with reference to the accompanying drawings. This example is shown in Figure 1.
As shown in FIG. 5, a door mirror mounted on the door D of the automobile C will be described.

In the figure, reference numeral 1 denotes a bracket made of, for example, die casting. A fixing plate portion 10 is integrally provided on the bracket 1, and a spherical washer 13 made of, for example, synthetic resin is fixed. The fixing plate portion 10 of the bracket 1 is fixed to the door D of the automobile C, that is, the vehicle body via the mirror base 12. In the figure, 2 and 3 are, for example, a metal shaft and a die-cast shaft holder that constitute the shaft member. A spherical guide 24 made of, for example, synthetic resin is fixed to the head of the shaft 2. The shaft 2 is passed through the through hole of the shaft portion 31 of the shaft holder 3. Since the outer surface of the shaft 2 and the inner surface of the through hole of the shaft holder 3 are provided with two flat chamfers, the shaft 2 and the shaft holder 3 rotate about the shaft axis (the central axis of the shaft 2) relative to each other. The shaft member is configured so as to be impossible and movable in the axial direction of the shaft.

The above-mentioned shaft members 2 and 3 are attached to the above-mentioned bracket 1 via a pivot mechanism so as to be rotatable and the shaft axes of the shaft members 2 and 3 pass through the rotation center O. Next, the structure of the above-mentioned pivot mechanism will be described. That is, the bracket 1
The spherical washer 13 is formed with a spherical surface portion (a spherical surface portion including a central portion and a peripheral portion via a step portion), and the outer pressure contact spherical surface 1 including the bracket 1 is formed in the central portion of the spherical surface portion.
10 is provided, and an inner press-contact spherical surface 130 composed of a spherical washer 13 is provided around the spherical surface portion. Further, the spherical guide 24 of the shaft 2 is provided with an inner press-contact spherical surface 240 that press-contacts with the outer press-contact spherical surface 110 of the bracket 1, while the shaft holder 3
Is provided with an outer press-contact spherical surface 301 that press-contacts the inner press-contact spherical surface 130 of the bracket 1. The shaft members 2 and 3 are inserted in the circular through hole 111 of the bracket 1.
Is inserted. A spring pressing washer 25 is attached to the end of the shaft 2 opposite to the head, and an E-ring 26 is fixed in an annular groove at the end of the shaft 2 opposite to the head. There is. A first coil spring 27 for compression type pivot torque is interposed between the lower surface of the spring pressing washer 25 and the upper end surface of the shaft portion 31 of the shaft holder 3.

The above-mentioned shaft members 2 and 3 are provided with respect to the above-mentioned bracket 1 by a guide mechanism around the axis of ordinate XX which is the shaft axis thereof, and through the rotation center O and along the axis of ordinate XX. They are guided so as to rotate around the horizontal axes Y-Y which are orthogonal to each other. That is, the guide plane 112 parallel to the horizontal axis Y-Y is provided on the peripheral edge of the spherical surface portion of the bracket 1. On the other hand, guide shafts 32 and 33 are integrally provided so as to project from the periphery of the shaft holder 3 in the horizontal axis YY direction coaxially with the horizontal axis YY. This one guide shaft 32 has a cylindrical shape, and the other guide shaft 3
3 has a semi-cylindrical shape. A guide mechanism is configured by pressing the guide shafts 32 and 33 onto the guide plane 112 by the spring force of the first coil spring 27.

A mirror assembly 4 is manually supported by the above-mentioned shuff members 2 and 3 so that the mirror surface can be adjusted in the left-right direction around the vertical axis XX and in the vertical direction around the horizontal axis YY. The mirror assembly 4 includes a mirror housing 42 having openings 40 and 41 on the front and side surfaces thereof, and a front opening 40 of the mirror housing 42.
The mirror 43 fixed to the
Fixed inside by a screw 48 and on the side opening 41
It is composed of unit housings 44 and 45 protruding from the outside. Also, the unit housings 44 and 4 described above
The lower housing 5 is composed of an upper housing (44) and a lower housing (45) which are divided into two parts.
5 has a circular through hole 4 at the center of the lower surface of the end protruding outside.
51 are provided. Further, the upper surface of the shaft holder 3 described above forms a circular plane including the horizontal axis Y-Y and centered on the center O of the spherical surface of the pivot mechanism.

The circular through hole 451 of the unit housing (lower housing 45) of the mirror assembly 4 is rotatably fitted on the cylindrical shaft portion 31 of the shaft holder 3 and the shaft holder 3 The lower surface of the unit housing (lower housing 45) of the mirror assembly 4 is placed on the circular upper surface of the, and a circular washer 46 having a circular through hole is provided between the upper surface of the shaft holder 3 and the lower surface of the mirror assembly 4. It is installed.
A second coil spring 28 for compression type pivot torque and clutch torque is provided outside the first coil spring 27 between the spring pressing washer 25 and a clutch gear 60 as a final stage gear described later. Is installed coaxially. The upper housing 44 and the lower housing 45 of the unit housing described above are integrally fixed by bolts 57, nuts 58 and screws 47.

Between the above-mentioned mirror assembly 4 and the above-mentioned shaft members 2 and 3, the mirror assembly 4 is disposed around the longitudinal axis XX in the use position (see FIGS. 3 and 4) and the storage position (see FIG. 3). Also, a motor 5 and a deceleration mechanism 50, which are rotationally displaced between the motor 5 and the deceleration mechanism 50, are interposed. That is, the motor 5 and the speed reduction mechanism 50 are built in and fixedly supported in the unit housings 44 and 45 of the above-mentioned mirror assembly 4, respectively. The speed reduction mechanism 50 described above
Is a first worm whose rotary shaft is connected to the output shaft of the motor 5 via a joint, a first worm wheel of a helical gear that meshes with the first worm, and a second worm coaxial with the first worm wheel. , A second worm wheel (helical gear) that meshes with this second worm
And a clutch gear 60 that meshes with the second worm wheel and is mounted on the shaft members 2 and 3 as the final stage gear.

A regulation mechanism for regulating the use position and the storage position of the mirror assembly 4 is provided between the mirror assembly 4 and the shaft members 2 and 3. That is, two balls 454 are held at equal intervals on the lower surface of the unit housing (lower housing 45) of the mirror assembly 4 described above. On the other hand, on the upper surface of the shaft holder 3 described above, two arc-shaped long grooves 302 are provided in a circular shape centered on the center O of the pivot mechanism. The balls 454 described above are housed in the long grooves 302.

Further, although not shown in the drawing, when the motor 5 is energized and the mirror assembly 4 is rotationally displaced by driving the motor 5, the energization to the motor 5 is cut off when the mirror assembly 4 is in the use position or the storage position. A switch device for stopping the mirror assembly 4 in the use position or the storage position is
It is equipped. Note that, as the power supply interruption control for the motor 5 of this switch device, there are current control of the PTC element or the like, combined use of a clutch and a limit switch, combined use of a clutch and a pattern switch, and the like.

A clutch mechanism 6 is interposed between the shaft members 2 and 3 and the clutch gear 60 as the final gear of the speed reduction mechanism 50. This clutch mechanism 6 is held on the lower surface of the clutch gear 60 described above.
It is composed of individual balls and a clutch plate. The clutch gear 60 is attached to the shaft members 2 and 3 and the mirror assembly 4 so as to be rotatable and movable in the vertical axis XX direction. The balls of the clutch gear 60 are fitted into the small circular through holes of the clutch plate.

The clutch torque for fitting and holding the ball of the clutch gear 60 and the small circular through hole of the clutch plate is obtained by the spring force of the second coil spring 28 described above. The spring force of the second coil spring 28 is
The above-mentioned clutch gear 60, ball, clutch plate, washer, ball 454, washer 46, and shaft holder 3
Through the spherical surfaces 110, 130 of the pivot mechanism described above,
It also functions as a pivot torque for holding 240 and 301 in pressure contact.

A stopper mechanism is provided between the bracket 1 and the shaft members 2 and 3 for restricting the manual mirror surface adjustment angle of the mirror assembly 4 in the left-right direction. The bracket 1 is provided with a pair of stopper wall portions 14 facing each other around the vertical axis XX. The above-mentioned shaft member 2 is provided between the pair of stopper wall portions 14.
The cylindrical guide shafts 32 and 3 are arranged.

A boot 7 is interposed between the bracket 1 and the mirror assembly 4 described above. The boot 7 has a bellows shape made of rubber and a tubular shape with an oval cross section (see FIG. 8), and openings are provided at both ends, and a flange portion is provided around the opening. Each is provided. On the other hand, the above-mentioned mirror assembly 4
The unit housings 44 and 45 each have an elliptical flange portion 49 integrally formed thereon.

The openings 70 at both ends of the boot 7 are formed around the fixed plate portion 10 of the bracket 1 and the mirror assembly 4.
Are fitted around the flange portions 49 of the unit housings 44 and 45, and the flange portions 71 at both ends of the boot 7 are provided between the fixed plate portion 10 and the mirror base 12 of the bracket 1 and the unit of the mirror assembly 4. The flange portions 49 of the housings 44 and 45 and the peripheral edge of the side surface opening portion 41 of the mirror housing 42 are pressed against each other.

The operation operation will be described below. First, when the mirror assembly 4 is manually rotated about the vertical axis XX, the clutch gear 60 and the shaft members 2 and 3 are rotated about the vertical axis XX via the clutch mechanism 6 in the connecting state. The mirror surface adjustment in the left-right direction around the vertical axis XX of the mirror assembly 4 is performed. On the other hand, when the mirror assembly 4 is manually rotated about the horizontal axis Y-Y, the shaft members 2 and 3 are rotated about the horizontal axis Y-Y via the clutch mechanism 6 in the disengaged state. The vertical mirror surface adjustment around the axis Y-Y is performed. When the motor 5 is energized to drive the motor 5, as shown in FIG. 3, the mirror assembly 4 is rotationally displaced about the vertical axis X-X from the use position to the storage position or from the storage position to the use position. To do.

As described above, the mirror surface (mirror 43) of the mirror assembly 4 can be manually adjusted in the left-right direction and the up-down direction, and the mirror assembly 4 can be stored and returned electrically.

At this time, an electric torque for rotationally displacing the mirror assembly 4 between the use position and the storage position by driving the motor 5 is manually applied.
By making the torque smaller than the pivot adjustment torque for adjusting the mirror surface, it is possible to reliably perform the manual mirror surface adjustment and the electric storage.

In particular, in this embodiment, the one end opening 70 of the boot 7 is fitted around the flange portions 49 of the unit housings 44 and 45 of the mirror assembly 4, and then the unit housing 4 of the mirror assembly 4 is inserted.
When fixing 4 and 45 to the mirror housing 42, one end flange portion 71 of the boot 7 and the flange portion 49 of the unit housings 44 and 45 are fixed to the mirror housing 4
The one end flange portion 71 of the boot 7 is pressed against the peripheral edge of the side surface opening portion 41 of the mirror assembly 4 so that
Between the flange portions 49 of the unit housings 44 and 45 and the peripheral edge of the side surface opening portion 41 of the mirror housing 42. As a result, the flange portion 71 of the boot 7 and the unit housing 44 of the mirror assembly 4 are
Since there is no gap between the flange portions 49 of the and 45 and the peripheral edge of the side surface opening portion 41 of the mirror housing 42, the sealing performance is improved, the fitting and fixing are ensured, and there is no wind noise.

Although the right-side door mirror has been described in the above embodiment, the left-side door mirror has substantially the same structure.

[0027]

As is apparent from the above, the boot fixing structure in the electrically retractable / manual mirror surface adjusting type mirror device of the present invention is such that the periphery of one opening end of the boot is the mirror housing of the mirror assembly and the unit housing. Since the one end of the boot is firmly fixed to the mirror assembly, the sealability is improved, and the one end of the boot is fixed in close contact with the mirror assembly. As a result, there is no gap and there is no wind noise.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a boot fixing structure in an electric retractable / manual mirror surface adjustment type mirror device of the present invention, in a state in which the boot mirror is mounted on a door of an automobile as a door mirror.

FIG. 2 is a perspective view in which part II of FIG. 1 is cut away.

FIG. 3 is a cross-sectional view showing the outline of the internal mechanism of the right side door mirror, with the upper housing removed.

FIG. 4 is a transverse sectional view showing the internal mechanism of the right side door mirror, with the upper housing removed.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a sectional view taken along line VI-VI in FIG. 4;

FIG. 7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a front view in which a part of the boot is cut away.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Bracket, 10 ... Fixed plate part, 110 ... Outer pressure contact spherical surface (pivot mechanism), 111 ... Circular through hole, 112 ... Guide plane (guide mechanism), 12 ... Mirror base, 13 ... Spherical washer, 130 ... Inner pressure contact spherical surface (Pivot mechanism),
14 ... Stopper wall (stopper mechanism), 2 ... Shaft (shaft member), 24 ... Spherical guide, 240 ... Inner pressure contact spherical surface (pivot mechanism), 25 ... Spring pressing washer, 26 ... E ring, 27 ... First coil spring,
28 ... 2nd coil spring, 3 ... Shaft holder (shaft member), 301 ... Outside pressure contact spherical surface (pivot mechanism), 302 ... Long groove (regulation mechanism), 31 ... Shaft part, 32 ...
Guide shaft (guide mechanism and stopper mechanism), 33 ... Guide shaft (guide mechanism), 4 ... Mirror assembly, 40 ... Front opening, 41 ... Side opening, 42 ... Mirror housing,
43 ... Mirror, 44 ... Upper housing (unit housing), 45 ... Lower housing (unit housing), 4
51 ... Circular through hole, 454 ... Ball (regulating mechanism), 46 ...
Washers, 47 and 48 ... Screws, 49 ... Flange portion, 5 ... Motor, 50 ... Reduction mechanism, 57 ... Bolts, 58
... nut, 6 ... clutch mechanism, 60 ... clutch gear (final stage gear of reduction mechanism 50), 7 ... boot, 70 ... opening, 71 ... flange portion, C ... automobile, D ... door, O ... spherical surface of pivot mechanism Center, XX ... vertical axis, YY ... horizontal axis.

Claims (4)

[Claims] 1. A bracket fixed to a vehicle body, a shaft member having a shaft, and a pivot mechanism in which the shaft member is rotatably attached to the bracket so that a shaft axis of the shaft member passes through the rotation center. A guide mechanism for guiding the shaft member to rotate around the vertical axis that is the shaft axis with respect to the bracket and around the horizontal axis that passes through the rotation center and is orthogonal to the vertical axis, and a mirror It has a fixed mirror housing and a unit housing part of which protrudes outward from the mirror housing, the protruding portion of the unit housing being supported by the shaft member, and the vertical axis relative to the bracket being manually operated. A mirror assembly for performing mirror surface adjustment in the left-right direction around and the vertical direction around the horizontal axis; With incorporated fixedly supported on the mirror acene the kink,
A motor and a speed reduction mechanism, which are interposed between the mirror assembly and the shaft member and rotationally displace the mirror assembly around the vertical axis between a use position and a storage position; and the bracket and the mirror assembly. In an electrically retractable / manual mirror surface adjustment type mirror device including a boot interposed between the boot and the mirror housing, the boot has a peripheral edge of one opening end fixed by pressure contact between the mirror housing and the unit housing of the mirror assembly. The structure for fixing a boot in an electrically retractable / manual mirror surface adjusting mirror device according to claim 1, wherein: 2. The unit housing is integrally provided with a flange portion which also serves as a reinforcing rib and is fitted and fixed to a peripheral edge of one opening end portion of the boot. A structure for fixing a boot in the electric storage type and manual mirror surface adjusting type mirror device described. 3. A fixing plate portion is provided on the bracket, and a peripheral edge of the other opening end portion of the boot is fitted between the fixing plate portion and a mirror base for fixing the bracket to the vehicle body. 3. The boot fixing structure in the electrically retractable / manual mirror surface adjusting mirror device according to claim 1, wherein the structure is fixed by press contact. 4. The boot has a bellows shape made of rubber and has openings at both ends, and flanges are provided around the openings. The fixing structure for a boot in the electric retractable / manual mirror surface adjustment type mirror device according to claim 1, 2, or 3.