JP3955006B2 - Vehicle door mirror device - Google Patents

Description

  According to the present invention, a bracket is housed and fixed in a housing having an opening facing rearward in a state of protruding from a vehicle door, and a mirror holder that can be tilted while holding a mirror disposed in the opening is supported by the bracket. The present invention relates to a vehicle door mirror device.

Conventionally, a bracket is housed and fixed in a housing protruding from a door of a vehicle, and a mirror disposed at an opening of the housing is held by a mirror holder that is tiltably supported by a mirror drive unit attached to the bracket. Such a vehicle door mirror device is already well known, for example, in Patent Document 1 and the like.
Japanese Patent Laid-Open No. 2-117448

  By the way, in such a door mirror device for a vehicle, as shown in FIG. 5, the air that has circulated between the housing 7 and the door D as indicated by an arrow 21 when the vehicle is running forms a vortex 22 on the rear side of the mirror 10. However, a part of the air flows along the mirror 10 and flows into the housing 7 from the gap between the mirror 10 and the housing 7 as indicated by an arrow 24, and further, the vortex at the door D side end of the housing 7. 22 is sucked out and flows out. For this reason, the air flowing into the housing 7 interferes with the inner surface of the housing 7, and a wind noise is generated in the housing 7.

  The present invention has been made in view of such circumstances, and provides a vehicle door mirror device capable of suppressing the flow of air in a housing as much as possible and suppressing the generation of wind noise in the housing. For the purpose.

To achieve the above object, according to the first aspect of the present invention, a bracket is housed and fixed in a mirror housing having an opening facing rearward in a state of protruding from a vehicle door, and the mirror disposed in the opening is held. In the vehicle door mirror device supported by the bracket, the tiltable mirror holder flows into the mirror housing from between the peripheral edge of the opening and the peripheral edge of the mirror on the side away from the door An air flow suppressing means for suppressing air from flowing between the inner surface of the mirror housing and the bracket so that air flows out from between the peripheral edge of the opening and the peripheral edge of the mirror on the door side. The air flow suppressing means includes a mirror housing side protruding wall protruding from the mirror housing toward the bracket side, and the bra Bracket-side protruding wall protruding from the mirror housing side so that the tip of the mirror housing-side protruding wall does not contact the inner surface of the bracket, and the tip of the bracket-side protruding wall faces the inner surface of the mirror housing. Each is formed so that it may not contact | abut .

According to a second aspect of the present invention , a bracket is housed and fixed in a mirror housing having an opening facing rearward in a state of protruding from a vehicle door, and a mirror holder that can tilt by holding a mirror disposed in the opening. However, in the vehicle door mirror device supported by the bracket, air flowing into the mirror housing from between the peripheral edge of the opening and the peripheral edge of the mirror on the side away from the door The air flow suppressing means includes an air flow suppressing means for suppressing the flow between the peripheral portion of the opening and the peripheral portion of the mirror to the outside so as to flow between the inner surface of the mirror housing and the bracket. A mirror housing side protruding wall protruding from the mirror housing to the bracket side, and the mirror housing from the bracket. Is composed of a bracket side projecting walls protruding Managing side, the mirror housing side projecting walls and said bracket side projecting walls is such that at least partially overlap when viewed from the direction of flow of air between the mirror housing and the bracket In this manner, the mirror housing and the bracket project from each other.

According to the present invention, since the air flow between the inner surface of the housing and the bracket is suppressed by the air flow suppressing means, it is possible to suppress the generation of wind noise in the housing.

In particular, according to the first aspect of the present invention, the housing-side protruding wall is formed such that the tip thereof does not contact the bracket, and the bracket-side protruding wall does not contact the inner surface of the housing. Therefore, the vibration from the housing is prevented from being transmitted to the mirror as much as possible, and the mirror does not vibrate.

In particular , according to the invention of claim 2 , the mirror housing side protruding wall and the bracket side protruding wall overlap at least partially when viewed from the air flow direction between the mirror housing and the bracket. And the bracket are respectively protruded so that the air flow between the inner surface of the housing and the bracket can be more effectively suppressed, and the generation of wind noise in the housing can be more effectively suppressed. It becomes.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.

  1 to 4 show an embodiment of the present invention, FIG. 1 is a front view of a vehicle door mirror device as viewed from the rear, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, and FIG. 2 is a cross-sectional view taken along line 3-3, and FIG. 4 is a view for explaining the flow of air in the vicinity of the housing.

  First, in FIG. 1, a base member 6 having a support arm portion 6 a is fixed to a door D of a vehicle. A housing 7 of a door mirror device according to the present invention includes a storage position on the door D side, a side from the door D, The base arm 6 is supported by the support arm 6a so as to be able to swing and displace between the use position protruding in the direction.

  2 and 3, the housing 7 is formed in a bowl shape with a synthetic resin so as to have an opening 8 facing rearward at the use position protruding from the door D, and the bracket 9 is formed in the housing 7. It is stored and fixed in. A mirror 10 is disposed in the opening 8. The mirror 10 is held by a tiltable mirror holder 11, and the mirror holder 11 is supported by the bracket 9.

  The bracket 9 is made of synthetic resin, and is fastened to the pair of support boss portions 7 a and 7 b which are formed in a cylindrical shape and integrally with the housing 7 by screw members 12 and 12. A unit housing 14 of a mirror drive unit 13 is attached to a portion of the bracket 9 on the opening 8 side, and the mirror holder 11 is supported by the unit housing 14 so as to be tiltable.

  The mirror drive unit 13 has a pair of shafts 15, 15 that can advance and retract in the axial direction independently of each other, and the tip portions of the shafts 15, 15 are swingably connected to the mirror holder 11. The Thus, the mirror drive unit 13 operates the pair of the shafts 15 and 15 in the axial direction while adjusting the axial advance and retreat positions thereof, whereby the mirror holder 11 and the mirror 10 are tilted up and down and left and right. .

  The bracket 9 is also attached with a housing drive unit 16 including an electric motor for swinging the housing 7 between a storage position and a use position.

  According to the present invention, the air that has flowed into the housing 7 from between the peripheral edge of the opening 8 and the peripheral edge of the mirror 10 on the side away from the door D, and the peripheral edge of the opening 8 on the door D side and the mirror. An air flow suppressing means 18 is provided on at least one of the housing 7 and the bracket 9 to suppress the flow between the inner peripheral surface of the housing 7 and the bracket 9 so as to flow out from between the peripheral portions of the housing 10. Thus, the air flow suppressing means 18 in this embodiment is composed of a housing-side protruding wall 19 protruding from the housing 7 toward the bracket 9 and a bracket-side protruding wall 20 protruding from the bracket 9 toward the housing 7. The housing side protruding wall 19 and the bracket side protruding wall 20 are at least partially overlapped when viewed from the direction of air flow between the housing 7 and the bracket 9 (direction perpendicular to the paper surface of FIG. 3). In this manner, the housing 7 and the bracket 9 are projected.

  Moreover, the housing-side protruding wall 19 is formed in a rib shape so as to continue to one of the pair of support boss portions 7a and 7b provided on the housing 7 so as to support the bracket 9. The support boss portion 7a also functions as a reinforcing rib, and the bracket-side protruding wall 20 also functions to reinforce the bracket 9.

  The housing-side protruding wall 19 is formed so that the tip thereof does not contact the bracket 9, and the bracket-side protruding wall 20 is formed so that the tip does not contact the inner surface of the housing 7. The housing-side protruding wall 19 and the bracket-side protruding wall 20 are also arranged so as not to contact each other. Therefore, the vibration from the housing 7 is prevented from being transmitted to the mirror 10 as much as possible, and the mirror 10 does not vibrate.

  Next, the operation of this embodiment will be described. Air that has flowed into the housing 7 from between the peripheral edge of the opening 8 on the side separated from the door D and the peripheral edge of the mirror 10 is opened on the door D side. An air flow suppressing means 18 is provided on at least one of the housing 7 and the bracket 9 so as to prevent the air from flowing between the peripheral edge of the mirror 10 and the peripheral edge of the mirror 10 to the outside so as to flow between the inner surface of the housing 7 and the bracket 9. Therefore, the air flow suppressing means 18 suppresses the air flow between the inner surface of the housing 7 and the bracket 9, and the generation of wind noise in the housing 7 can be suppressed.

  That is, as shown in FIG. 4, the air that has circulated between the housing 7 and the door D as indicated by the arrow 21 while the vehicle is running flows along the mirror 10 while forming a vortex 22 on the rear side of the mirror 10. A part of the air flows into the housing 7 from the gap between the mirror 10 and the housing 7 as indicated by an arrow 23, but the air flow between the inner surface of the housing 7 and the bracket 9 is the air flow suppressing means. The amount of air flowing into the housing 7 is very small. Therefore, the air flowing into the housing 7 is suppressed from interfering with the inner surface of the housing 7 as much as possible, and the generation of wind noise in the housing 7 can be suppressed as much as possible.

  Moreover, the air flow suppressing means 18 includes a housing-side protruding wall 19 protruding from the housing 7 toward the bracket 9 and a bracket-side protruding wall 20 protruding from the bracket 9 toward the housing 7 between the housing 7 and the bracket 9. The air flow between the inner surface of the housing 7 and the bracket 9 can be more effectively suppressed by being arranged so that at least a part thereof overlaps when viewed from the air flow direction. It is possible to more effectively suppress the generation of wind noise at the.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the present invention described in the claims. It is.

For example housings 7 not only rockable storage type door mirror device between the use position and storage position, the housing is also applicable to the present invention the door mirror device that remains projecting from the door D.

It is the front view which looked at the door mirror device for vehicles from the back. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. It is a figure for demonstrating the flow of the air of the housing vicinity. It is a figure corresponding to FIG. 4 of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 7 ... Housing 8 ... Opening 9 ... Bracket 10 ... Mirror 11 ... Mirror holder 18 ... Air flow suppression means 19 ... Housing side protrusion wall 20 ... Bracket side protrusion Wall D ... Door

Claims (2)

A mirror (10) in which a bracket (9) is housed and fixed in a mirror housing (7) having an opening (8) facing rearwardly in a state of protruding from a vehicle door (D) and disposed in the opening (8). In the vehicle door mirror device in which the mirror holder (11) capable of tilting while holding is supported by the bracket (9),
Air flowing into the mirror housing (7) from between the peripheral edge of the opening (8) and the peripheral edge of the mirror (10) on the side separated from the door (D) is on the door (D) side. The flow between the peripheral portion of the opening (8) and the peripheral portion of the mirror (10) and the flow between the inner surface of the mirror housing (7) and the bracket (9) is suppressed. an air flow inhibiting means (18) for,
The air flow suppression means (18) includes a mirror housing side protruding wall (19) protruding from the mirror housing (7) to the bracket (9) side, and from the bracket (9) to the mirror housing (7) side. It consists of a protruding bracket side protruding wall (20),
The mirror housing side protruding wall (19) has its tip not contacted with the inner surface of the bracket (9), and the bracket side protruding wall (20) has its tip not contacted with the inner surface of the mirror housing (7). vehicle door mirror apparatus characterized by being formed. A mirror (10) in which a bracket (9) is housed and fixed in a mirror housing (7) having an opening (8) facing rearwardly in a state of protruding from a vehicle door (D) and disposed in the opening (8). In the vehicle door mirror device in which the mirror holder (11) capable of tilting while holding is supported by the bracket (9),
Air flowing into the mirror housing (7) from between the peripheral edge of the opening (8) and the peripheral edge of the mirror (10) on the side separated from the door (D) is on the door (D) side. The flow between the peripheral portion of the opening (8) and the peripheral portion of the mirror (10) and the flow between the inner surface of the mirror housing (7) and the bracket (9) is suppressed. Air flow suppression means (18)
The air flow suppression means (18) includes a mirror housing side protruding wall (19) protruding from the mirror housing (7) to the bracket (9) side, and from the bracket (9) to the mirror housing (7) side. It consists of a protruding bracket side protruding wall (20),
The mirror housing side protruding wall (19) and the bracket side protruding wall (20) are overlapped at least partially when viewed from the direction of air flow between the mirror housing (7) and the bracket (9). , the mirror housing (7) and drive dual door mirror device, wherein each being protruded to the bracket (9).

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