JP2013001179A - Installation structure of electric retraction unit in electric retractable mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the temporary assembling and fastening of an electric retraction unit 5, which positions a mirror body 1 at the use position and the retracted position by rotating about a pivot 6, to the mirror body 1.SOLUTION: The mirror body 1 includes first and second support parts 15, 16 for supporting the front and rear fastening boss parts 7, 7 of the unit 5, a third support part 18 for supporting the third fastening boss part 12 of the unit 5 which is positioned near the center of the mirror body, and a holding wall 17 for holding the upper fastening part 11 of the unit 5. An outer edge 19 to which one of the pair of fastening boss parts 7 is fitted is provided to the first support part 15 on the rear side, the second support part 16 on the front side is formed flat, and an outer edge 21 for restricting the rotation of the unit 5 is provided to the third support part. While the unit 5 is held aslant, the upper fastening part 11 is inserted into the inner surface of the holding wall 17, and the fastening boss parts 7, 7, 12 are supported by their respective support parts 15, 16, 18 and fastened.

Description

  The present invention relates to an assembly structure of an electric storage unit in an electric storage mirror of an automobile.

  In the electric retractable mirror, the mirror main body is supported on the vehicle body, and is rotated between the use position in which the mirror main body protrudes to the side of the vehicle body and the storage position along the vehicle body by the electric motor. The electric storage unit incorporating the electric motor is attached to a mirror body as described in, for example, Patent Document 1, and a support shaft incorporated in the electric storage unit is attached to a mirror base fixed to a side door of the vehicle body. Are combined.

JP 2010-274744 A

  In order to ensure the fixing of the electric storage unit to the mirror main body, the mirror main body is provided with at least three receiving parts for receiving the electric storage unit fastening bosses, and the upper holding part of the electric storage unit is held above it. It is desirable to provide a part. With regard to the arrangement of the three fastening bosses and the upper fastening, in order to make the electric storage unit a common part that can be used for both the left and right mirrors of the vehicle body, the electric storage unit can be reversed 180 degrees around the support shaft. The three fastening boss portions and the upper fastening portion need to have the same positional relationship.

  In other words, the three fastening bosses and the upper fastening part of the electric storage unit are arranged symmetrically with respect to a plane passing through the support shaft and parallel to the mirror surface. For example, two of the fastening bosses connected to the three receiving parts are arranged on both front and rear sides (both sides in the direction orthogonal to the mirror surface) across the support shaft, and the remaining one fastening boss and upper fastening The part adopts a configuration in which the part is arranged on the symmetry plane parallel to the mirror surface.

  By the way, when the electric storage unit is assembled to the mirror main body from the back side, it is desirable that the electric storage unit can be held in a temporarily assembled state with respect to the mirror main body in order to improve the assemblability. For this purpose, a holding wall that surrounds the upper fastening portion of the electric storage unit from the back side of the mirror main body is provided as a holding portion of the mirror main body, and the upper fastening portion is inserted into the holding wall from below, and in that state, Each fastening boss portion may be supported by each receiving portion of the mirror body. Thereby, since the upper fastening part is hold | maintained at the holding wall of a mirror main body, an electric storage unit does not fall down.

  However, in order to make the temporary assembly state described above, it is necessary to stand up while inserting the upper fastening portion into the holding wall of the mirror body with the electric storage unit inclined, and at that time, the lower end portion of the electric storage unit Easily interferes with the receiving part of the mirror body. In particular, when a fitting structure with irregularities is adopted for each receiving part of the mirror main body and each fastening boss part of the electric storage unit, the amount of protrusion upward of the receiving part or the amount of protrusion downward of the fastening boss part increases. The interference is likely to occur. On the other hand, without adopting the fitting structure, if the structure is such that the fastening boss of the electric storage unit is simply received by the receiving part of the mirror main body, the electric storage unit cannot be mechanically positioned with respect to the mirror main body, Fastening with screws is difficult.

  Then, this invention makes it a subject to aim at coexistence with the temporary assembly property with respect to the mirror main body of an electric storage unit, and fastening property.

  In order to solve the above-described problems, the present invention employs a configuration in which the first receiving portion on the back side of the first receiving portion and the second receiving portion is used as a positioning reference for the electric storage unit.

That is, the present invention includes an electric storage unit having a support shaft coupled to the vehicle body, and rotating the mirror body between the use position and the storage position around the support shaft,
A receiving portion that receives the electric storage unit is provided on the back side of the mirror body, and a holding wall that surrounds the upper portion of the electric storage unit from the back side of the mirror body is provided above the receiving portion. ,
The electric storage unit is received by the receiving part in a state where the upper part of the electric storage unit is inserted into the holding wall through the back side of the mirror main body and fixed to the receiving part, and the holding An electric retractable unit assembly structure in an electric retractable mirror that is assembled to the mirror body by fixing to a wall,
The electric storage unit includes a pair of fastening boss portions provided on both sides in a direction orthogonal to the mirror surface across the support shaft, and a third provided at a position away from the support shaft toward the center of the mirror body. Each of the pair of fastening bosses has the same bottom surface,
The mirror main body includes, as the receiving portion, first and second receiving portions that receive the pair of fastening boss portions disposed on the back side and the near side when viewed from the back side of the mirror main body, and the both receiving portions from A third receiving portion for receiving the third fastening boss portion disposed away from the center of the mirror body,
Thus, only the first receiving portion on the back side of the first receiving portion and the second receiving portion is provided with an outer edge for positioning that protrudes upward to restrict the displacement of the fastening boss portion, The upper end of the second receiving part on the side is lower than the first receiving part on the back side by the height of the outer edge.

  According to such an assembly structure of the electric storage unit, the pair of fastening boss portions are provided on both sides in the direction orthogonal to the mirror surface with the support shaft interposed therebetween, and the second position is away from the support shaft toward the center of the mirror body. 3 fastening bosses are provided, and the bottom surfaces of the pair of fastening bosses have the same height. Therefore, even if the electric storage unit is inverted 180 degrees around the support shaft, the three fastening bosses The positional relationship between and the spindle does not change. Therefore, it is advantageous to make the electric storage unit a common component that can be used for both the left and right mirrors.

  When assembling the electric storage unit to the mirror main body, from the back side of the mirror main body, the electric storage unit is inclined and the upper part is passed under the holding wall of the mirror main body, inserted into the holding wall, and By placing the fastening boss part on each receiving part of the mirror main body, a temporarily assembled state can be obtained. In this temporary assembly work, since the second receiving part on the near side of the mirror body is lower than the first receiving part on the back side, interference between the lower end part of the electric storage unit and the mirror body can be avoided, Temporary assembly work becomes easy.

  In the temporarily assembled state, the upper part of the electric storage unit is supported by the holding wall of the mirror body, so that the electric storage unit is prevented from falling. Thus, since the displacement of the fastening boss portion of the electric storage unit received by the first receiving portion on the back side of the mirror main body is prevented by the outer edge, the first receiving portion on the back side is the mirror main body of the electric storage unit. It becomes the positioning reference for. Therefore, the fastening operation | work with each fastening boss | hub part of an electric storage unit and each receiving part of a mirror main body becomes easy.

  Preferably, the third receiving portion of the mirror body is provided with an outer edge that restricts the electric storage unit from rotating about the fastening boss portion received by the first receiving portion on the back side. is there. As a result, the first receiving portion and the third receiving portion on the back side of the mirror main body combine to fix the position of each fastening boss portion of the electric storage unit to each receiving portion of the mirror main body. Fastening work with the receiving part is facilitated.

  As described above, according to the present invention, it is easy to temporarily assemble the electric storage unit with respect to the mirror main body so as not to fall down and to prevent positional displacement. Fastening work between the mirror part and each receiving part of the mirror body is facilitated, and the assembly of the electric storage unit is improved.

It is a front view of the electric retractable mirror of a motor vehicle. It is a disassembled perspective view which shows a mirror housing and an electric storage unit. It is a rear view of the mirror main body which assembled | attached the electric storage unit. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3 (a cross-sectional view before assembly of the electric storage unit). It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. 3 (sectional drawing before an electric storage unit assembly | attachment). It is the DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. 3 (sectional drawing in the state of temporary assembly). It is the EE sectional view taken on the line of FIG. 3 (sectional drawing of a temporary assembly state). FIG. 5 is a sectional view taken along line FF in FIG. 3 (the internal mechanism of the electric storage unit is omitted). It is CC sectional view taken on the line of FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its application, or its use.

  In the motor-driven retractable mirror (door mirror) shown in FIG. 1, reference numeral 1 denotes a mirror body in which a mirror plate 3 is attached to a mirror housing 2, and 4 denotes a mirror base projecting from the automobile door to support the mirror body 1. It is. The mirror main body 1 is supported by the mirror base 4 via an electric storage unit 5 provided at the base end portion on the mirror base side, and is rotated between a use position protruding toward the vehicle body side and a storage position along the vehicle body. It is made to move.

<Electric storage unit>
As shown in FIG. 2, the electric storage unit 5 includes a drive-side case portion 5 a that houses an electric motor for rotating the mirror body 1, a shaft 6 that houses a support shaft 6 that is coupled to the mirror base 3, and the like. Side case portion 5b. Both case portions 5 a and 5 b are integrated and fixed to the mirror body 1.

  In the electric storage unit 5, a pinion that is rotationally driven by an electric motor via a speed reduction mechanism meshes with a clutch gear that is coupled to the support shaft 6 via a clutch mechanism. Then, as the pinion rolls around the clutch gear, the mirror body 1 rotates around the support shaft 6 together with the case portions 5a and 5b of the electric storage unit 4, and is positioned at the use position and the storage position.

  Hereinafter, the assembly structure of the electric storage unit 5 to the mirror body will be described.

<Configuration of the electric storage unit>
Both case portions 5a and 5b of the electric storage unit 5 are arranged in parallel to the mirror surface. In order to assemble the electric storage unit 4 to the mirror main body 1, a plurality of fastening boss portions and attachment holes are provided in both case portions 5a and 5b.

  That is, the pair of fastening bosses 7 and 7 are provided on both sides (both sides in the direction orthogonal to the mirror surface) with the support shaft 6 interposed therebetween in the shaft side case portion 5a. Further, the bracket 8 protrudes upward from the opposite side of the drive side case portion 5b to the shaft side case portion 5a, and an upper fastening portion 11 having a mounting hole 9 at the upper end thereof is formed. Further, a third fastening boss portion 12 is provided at a portion of the lower end portion of the bracket 8 opposite to the shaft side case portion 5a.

  The pair of fastening boss portions 7 and 7 are arranged symmetrically with respect to a plane passing through the center of the support shaft 6 and parallel to the mirror surface. Hereinafter, the plane parallel to the mirror surface is referred to as a “symmetric plane”. The upper fastening part 11 and the third fastening boss part 12 are arranged on the symmetry plane. Each of the fastening bosses 7, 7, 12 has a cylindrical lower end projecting downward, and screw holes 7a, 7a, 12a shown in FIG. 10 and FIG. Since the pair of fastening boss portions 7 and 7 are arranged symmetrically, each lower surface has the same height. The lower surface of the third fastening boss portion 12 is positioned higher than the lower surfaces of the fastening boss portions 7 and 7.

  The attachment hole 9 of the upper fastening portion 11 is orthogonal to the mirror surface. Around the attachment hole 9 of the upper fastening portion 11, a substantially U-shaped flange 11 a opened to the proximal end side of the mirror body 1 is provided. The U-shaped flange 11a projects to the front and back sides of the mirror body.

  As described above, the pair of fastening boss portions 7 and 7 are arranged symmetrically with respect to the symmetry plane, and the upper fastening portion 11 and the third fastening boss portion 12 are arranged on the symmetry plane. This is because 5 is a common part that can be used for both the left and right door mirrors. That is, even if the electric storage unit 5 is inverted 180 degrees around the support shaft 6, the upper fastening portion 11 and the third fastening boss portion 12 are different depending on whether they are on the right side or the left side of the support shaft 6. The positional relationship between the boss portions 7, 7, 12 and the upper fastening portion 11 and the support shaft 6 is the same. Therefore, the electric storage unit 5 can be assembled to either the left or right mirror body 1 by configuring the left and right mirror bodies 1 symmetrically.

<Configuration of the mirror body>
In the mirror housing 2 of the mirror body 1, in order to assemble the electric storage unit 5 from the rear side of the housing, the first and second receiving portions 15 and 16, the holding wall 17 and the third receiving portion shown in FIGS. 18 is provided. The first to third receiving portions 15, 16, 18 are portions that receive and fasten the cylindrical lower end portions of the fastening boss portions 7, 7, 12 of the electric storage unit 5. The holding wall 17 is a portion for fastening the upper fastening portion 11 of the electric storage unit 5, and is provided above the receiving portions 15, 16, and 18.

  In FIG. 4, reference numeral 21 denotes a unit support portion that protrudes to the rear side of the mirror main body at the base end portion of the mirror housing 2, and has a support shaft hole 22 that projects the support shaft 6 downward. When viewed from the back side of the mirror body, a first receiving portion 15 is provided on the back side of the support shaft hole 22, and a second receiving portion 16 is provided on the front side of the support shaft hole 22.

  As shown in FIG. 5, in the first receiving portion 15 on the back side, around the screw insertion hole 15 a through which the fastening screw is passed, the positional displacement of the fastening boss portion 7 is restricted in all horizontal directions. An outer edge 19 for positioning is provided so as to protrude from the center. Although the outer edge 19 of this example is formed in a continuous ring shape, it is not always necessary to have a continuous ring shape as long as the horizontal displacement is regulated in all directions. The fastening boss portion 7 received by the first receiving portion 15 is restricted in horizontal displacement by the outer edge 19 but is allowed to rotate. The upper end surface of the annular outer edge 19 is inclined downward toward the inside so as to receive the cylindrical lower end portion of the fastening boss portion 7 and guide it to the receiving surface.

  On the other hand, in the second receiving portion 16 on the near side, the receiving surface that receives the lower surface of the fastening boss portion 7 is the same height as the receiving surface of the first receiving portion 15 on the back side. The screw insertion hole 16a is open, and there is no outer edge for restricting the displacement movement of the fastening boss portion 7, and the entire surface is formed on a flat surface. Accordingly, the upper end of the second receiving portion 16 on the near side is lower than the first receiving portion 15 on the far side by the height of the annular outer edge 19.

  FIG. 6 shows the third receiving portion 18 that receives the lower surface of the third fastening boss portion 12 of the electric storage unit 5. The third receiving portion 18 is disposed at a position away from the first and second receiving portions 15 and 16 toward the center of the mirror body. The receiving surface of the third receiving portion 18 protrudes upwardly by two to restrict the electric storage unit 5 from rotating around the fastening boss portion 7 received by the first receiving portion 15 on the back side. An outer edge 21 is provided. The two rotation regulating outer edges 21 extend on both sides of the screw insertion hole 18a in parallel with the mirror surface.

  Next, the holding wall 17 that fastens the upper fastening portion 11 of the electric storage unit 5 will be described. As shown in FIG. 7, the holding wall 17 is formed in a substantially U-shaped horizontal cross section that opens to the front side of the mirror body, so as to surround the upper fastening portion 11 from the back side of the mirror body. That is, the holding wall 17 has a back side wall portion 17a and side walls 17b and 17b on both sides thereof. The space surrounded by the holding wall 17 is closed on the upper side as shown in FIG. 8, but is open on the lower side. As shown in FIG. 4, a screw hole 22 opened on the front surface side of the mirror body is formed in the back side wall portion 17 a of the holding wall 17. A concave groove 23 is formed around the screw hole 22 on the surface of the rear side wall portion 17a on the front side of the mirror body so as to receive the flange 11a of the upper fastening portion 11.

<Assembly of the electric storage unit to the mirror body>
As shown in FIGS. 8 and 9, the electric storage unit 5 is assembled to the mirror body 1 from the back side to be temporarily assembled. At this time, as shown by a two-dot chain line in FIG. 3, the electric storage unit 5 is in an oblique state in which the upper part thereof falls to the mirror body 1 side and also falls to the center side of the mirror body 1. In this state, the upper fastening portion 11 of the electric storage unit 5 is inserted under the holding wall 17 from the back side of the mirror body 1 and inserted into the holding wall 17. Then, the electric storage unit 5 is returned from the oblique state to the standing state, and the fastening boss portions 7, 7, 12 are placed on the first to third receiving portions 15, 16, 18 of the mirror body 1, and the electric storage unit 5 The flange 11 a of the upper fastening portion 11 is fitted into the groove 23 around the screw hole 22 of the holding wall 17 of the mirror body 1.

  The reason why the upper portion of the electric storage unit 5 is tilted toward the mirror main body 1 is to allow the upper fastening portion 11 to pass under the holding wall 17. The reason why the upper part of the electric storage unit 5 is tilted to the center side of the mirror body 1 is that the third fastening boss part 12 of the electric storage unit 5 and the outer edge 21 of the third receiving part 18 of the mirror body 1 interfere. Is to avoid.

  In the temporary assembling work, since the second receiving portion 16 on the near side of the mirror body 1 is lower than the first receiving portion 15 on the back side, the lower end portion of the electric storage unit 5 interferes with the second receiving portion 16. Can be avoided, and the temporary assembly work becomes easy. Further, after the temporary assembly, the upper fastening portion 11 of the electric storage unit 5 is supported by the holding wall 17 of the mirror main body 1, so that the electric storage unit 5 is prevented from falling.

  With the temporary assembly, as shown in FIG. 10, of the pair of fastening boss portions 7, 7 of the electric storage unit 5, the back side fastening boss portion 7 positions the back side first receiving portion 15 of the mirror body 1. It will be in the state fitted in the outer edge 19 for use. Therefore, the displacement of the fastening boss portion 7 on the first receiving portion 15 is not caused. That is, the first receiving portion 15 serves as a positioning reference between the electric storage unit 5 and the mirror body 1.

  Further, as shown in FIG. 11, the third fastening boss portion 12 of the electric storage unit 5 is fitted between the two outer edges 21 extending in parallel with the mirror surface of the third receiving portion 18 of the mirror body 1. Thus, the two outer edges 21 prevent displacement in the direction perpendicular to the mirror surface. That is, the electric storage unit 5 is prevented from rotating around the fastening boss portion 7 on the back side. That is, the 3rd receiving part 18 constitutes the 2nd positioning standard which regulates rotation of electric storage unit 5 in a temporary assembly state.

  Thus, the fitting of the back side fastening boss portion 7 and the first receiving portion 15 and the rotation restriction of the third fastening boss portion 12 by the outer edge 21 of the third receiving portion 18 cause the electric storage unit 5 to The screw holes 7a, 7a, 12a of the three fastening boss portions 7, 7, 12 and the screw insertion holes 15a, 16a, 18a of the three receiving portions 15, 16, 18 of the mirror body 1 are in a state of being matched with each other. Become. Therefore, the three fastening boss portions 7, 7, 12 of the electric storage unit 5 and the three receiving portions 15, 16, 18 of the mirror body 1 are fastened with screws, and the upper fastening portion 11 of the electric storage unit 5 is fastened. And the holding wall 17 of the mirror body 1 are fastened with screws. As described above, the screw holes 7a, 7a, 12a of the fastening boss portions 7, 7, 12 of the electric storage unit 5 and the screw insertion holes 15a, 16a, 18a of the receiving portions 15, 16, 18 of the mirror body 1 match. Since it is in the state which was made, the fastening operation | work with the bis | screw of the electric storage unit 5 and the mirror main body 1 becomes easy.

DESCRIPTION OF SYMBOLS 1 Mirror main body 3 Mirror base 5 Electric storage unit 6 Support shaft 7 Fastening boss part 11 Upper fastening part 12 Third fastening boss part 15 First receiving part 16 Second receiving part 17 Holding wall 18 Third receiving part 19 Outer edge 21 Outer edge

Claims (2)

An electric storage unit having a support shaft coupled to the vehicle body and rotating the mirror body between the use position and the storage position around the support shaft;
A receiving portion that receives the electric storage unit is provided on the back side of the mirror body, and a holding wall that surrounds the upper portion of the electric storage unit from the back side of the mirror body is provided above the receiving portion. ,
The electric storage unit is received by the receiving part in a state where the upper part of the electric storage unit is inserted into the holding wall through the back side of the mirror main body and fixed to the receiving part, and the holding An electric retractable unit assembly structure in an electric retractable mirror that is assembled to the mirror body by fixing to a wall,
The electric storage unit includes a pair of fastening boss portions provided on both sides in a direction orthogonal to the mirror surface across the support shaft, and a third provided at a position away from the support shaft toward the center of the mirror body. Each of the pair of fastening bosses has the same bottom surface,
The mirror main body includes, as the receiving portions, first and second receiving portions that receive the pair of fastening boss portions disposed on the back side and the near side when viewed from the back side of the mirror main body, and the two receiving portions from the first and second receiving portions. A third receiving portion for receiving the third fastening boss portion disposed away from the center of the mirror body,
Only the first receiving portion on the back side of the first receiving portion and the second receiving portion is provided with an outer edge for positioning that protrudes upward to restrict the displacement of the fastening boss portion, and the second on the near side. The assembled structure of the electric storage unit in the electric retractable mirror, wherein the upper end of the receiving portion is lower than the first receiving portion on the back side by the height of the outer edge. In claim 1,
The third receiving portion is provided with an outer edge for restricting the electric storage unit from rotating about a fastening boss portion received by the first receiving portion on the back side. Mounting structure of the electric storage unit in a mirror.

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