JP2015089769A - Outer mirror attachment structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outer mirror attachment structure which forms fore-and-aft both ends of a belt reinforcement into both-end support structures using a door inner panel, improves the rigidity of the belt reinforcement, also improves the rigidity of a mirror attachment reinforcement, and improves outer mirror attachment rigidity.SOLUTION: In a door main body 4 composed of a door outer panel and a door inner panel 3, there are arranged a hinge reinforcement 12 for reinforcing a door hinge 8 arranged at a door front end part, a belt reinforcement 21 extending to a vehicle fore-and-aft direction along a belt line of the door main body 4, and a mirror attachment reinforcement 23 for attaching an outer mirror to the door main body 4. The mirror attachment reinforcement 23 is attached to the door main body 4 via the belt reinforcement 21, the belt reinforcement 21 is extended to a vehicle front part up to the front end part of the hinge reinforcement 12, and the door main body is three-piece welded and fixed by the door inner panel 3 and the hinge reinforcement 12 in the front end part 21a.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer mirror mounting structure, and more particularly, in a door main body composed of a door outer panel and a door inner panel, a hinge rain for reinforcing a door hinge provided at a door front end, and a vehicle along a belt line of the door main body. The present invention relates to an outer mirror mounting structure having a belt rain extending in the front-rear direction and a mirror mounting rain for mounting an outer mirror to a door body, and the mirror mounting rain is mounted to the door body via the belt rain.

As a conventional outer mirror mounting structure, a structure shown in FIG. 6 is known.
That is, in the door main body 63 composed of the door outer panel 61 and the door inner panel 62, a belt rain 64 extending in the front-rear direction along the belt line is provided, while the door inner panel 62 is a hemming portion of the door outer panel 61. An outer surface portion 62a to which 61a is fitted, a step-down portion 62b extending inward in the vehicle width direction from the rear end of the outer surface portion 62a, a front end portion 62c extending from the inner end of the step-down portion 62b to the rear of the vehicle, A front portion 62d extending inward in the vehicle width direction from the rear end of the front end portion 62c and an inner surface portion 62e extending rearward from the inner end portion in the vehicle width direction of the front surface portion 62d are provided.
Further, a hinge rain 65 that reinforces the door hinge is provided on the inner side of the front portion of the door inner panel 62. The hinge rain 65 corresponds to the front end portion 62c, the front surface portion 62d, and the inner surface portion 62e of the door inner panel 62. It has a front end portion 65c, a front surface portion 65d, and an inner surface portion 65e.

A mirror mounting plate 66 having a substantially Z shape in plan view is provided between the inner surface portion 65e of the hinge rain 65 and the front portion of the belt rain 64, and the belt rain 64 and the mirror mounting plate 66 overlap each other. This is an outer mirror mounting structure in which the mirror base 68 of the outer mirror 67 is mounted to the portion.
The above-described belt rain 64 is originally intended to ensure the rigidity of the belt line, and does not need to extend forward to the front end portion of the door inner panel 62, and the conventional structure of FIG. 6 has a low mirror mounting rigidity. It was.

  Therefore, in order to improve the mirror mounting rigidity, an impact bar made of a pipe extending in the front-rear direction along the belt line and an impact made of a hat member for side collision extending obliquely rearward and downward from the upper door hinge corresponding position It is conceivable to connect the bar with the junction plate in the vertical direction and connect this junction plate to the mirror mounting part to improve the mirror mounting rigidity. In this case, however, the pipe impact bar and junction Since plates and the like are indispensable, there is a problem that the weight of the door increases and the weight reduction of the door is hindered.

  By the way, Patent Document 1 discloses a structure in which an outer mirror is attached to a wind frame located above the belt line of the front door and in front of the front door. However, Patent Document 1 discloses an outer mirror. The technical idea of supporting the belt rain, the hinge rain, and the mirror mounting rain is not disclosed.

JP 2012-171568 A

  Therefore, the present invention has a both-side support structure with a door inner panel at both front and rear ends of the belt rain, and the rigidity of the belt rain can be improved. An object of the present invention is to provide an outer mirror mounting structure capable of improving the mounting rigidity of the outer mirror.

  An outer mirror mounting structure according to the present invention extends in a vehicle longitudinal direction along a belt line of a door body and a hinge rain that reinforces a door hinge provided at a door front end portion in a door body comprising a door outer panel and a door inner panel. A belt rain and a mirror attachment rain for attaching the outer mirror to the door body, wherein the mirror attachment rain is attached to the door body via the belt rain, wherein the belt rain is attached to the front end of the hinge rain. The vehicle is extended to the front of the vehicle, and three pieces are welded and fixed at the front end portion with the door inner panel and the hinge rain.

  According to the above configuration, the belt rain extends forward to the front end portion of the hinge rain, and the front end portion is welded and fixed by the door inner panel and the hinge rain, so that both front and rear end portions of the belt rain are the door inner panel. This double-supported support structure can improve the rigidity of the belt rain, and can also improve the rigidity of the mirror mounting rain. As a result, the outer mirror The mounting rigidity can be improved.

  In one embodiment of the present invention, the door inner panel includes a front end portion extending in the front-rear direction, a front portion extending inward in the vehicle width direction from the rear end of the front end portion, and an inner end portion in the vehicle width direction of the front portion. And the hinge rain has a front end portion, a front surface portion and an inner surface portion corresponding to the front end portion, the front surface portion and the inner surface portion of the door inner panel, and the inner surface portion of the hinge rain. Has a convex part protruding outward in the vehicle width direction, and the convex part is welded and fixed by the mirror mounting rain and the belt rain to form a closed section between the belt rain and the hinge rain. It is a thing.

  According to the above configuration, the front three-piece weld fixing portion (belt rain front end portion, hinge rain front end portion and door inner panel welded portion), and the rear three weld fixing portion (hinge rain convex portion). Since a closed cross section is formed between the mirror mounting rain and the belt rain (three welded portions), deformation of the belt rain against vibration can be suppressed, and the rigidity on the front side of the mirror mounting rain can be effectively increased.

  In one embodiment of the present invention, the belt rain corresponding to the convex portion of the hinge rain is provided with a concave portion recessed inward in the vehicle width direction, the convex portion of the hinge rain, the concave portion of the belt rain, and the above The front part of the mirror mounting rain is fixed by welding.

  According to the above configuration, the protrusion amount of the hinge rain and the recessed portion of the belt rain are both reduced, and the press workability of the hinge rain and the belt rain is improved, and the protrusion amount and the recess are increased. Since the amount of installation is small, it is possible to further suppress these deformations.

  According to the present invention, the front and rear ends of the belt rain are both supported by the door inner panel, and the rigidity of the belt rain can be improved, so that the rigidity of the mirror mounting rain can also be improved. There is an effect that the mounting rigidity of the outer mirror can be improved.

The side view which shows the door provided with the outer mirror attachment structure of this invention in the state which removed the door outer panel Enlarged view of the main part of FIG. 2 is a cross-sectional view taken along line AA in FIG. The principal part expanded sectional view which follows the BB line of FIG. The principal part expanded sectional view which follows the CC line of FIG. Sectional drawing which shows the conventional outer mirror mounting structure

  The front and rear ends of the belt rain are both supported by door inner panels to improve the rigidity of the belt rain, which in turn can improve the rigidity of the mirror mounting rain and improve the mounting rigidity of the outer mirror. In the door body consisting of a door outer panel and a door inner panel, a hinge rain that reinforces the door hinge provided at the front end of the door and a belt rain that extends in the longitudinal direction of the vehicle along the belt line of the door body. And an outer mirror mounting structure in which the outer mirror is attached to the door body via the belt rain, and the belt rain is forwarded to the front end of the hinge rain. The door inner panel at the front end. And realized by configuration in which three welded between the hinge rain.

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawing shows the outer mirror mounting structure, FIG. 1 is a side view of the whole door with the door outer panel and the outer mirror removed, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIG. FIG. 4 is a cross-sectional view, FIG. 4 is a main part enlarged cross-sectional view taken along line BB in FIG. 2, and FIG. 5 is a main part enlarged cross-sectional view taken along line CC in FIG.
In the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inward in the vehicle width direction, and arrow OUT indicates the outward in the vehicle width direction.

1 to 5, a front side door 1 (hereinafter simply referred to as a front side door) that is a door on the side of a driver's seat of a vehicle that opens and closes a door opening (not shown) on the vehicle body side is a door outer panel 2. (See FIG. 3) and a door inner panel 3, and at the top of the door body 4 joined to the door outer panel 2 and the door inner panel 3, as shown in FIG. A door outer handle (not shown) is provided at a predetermined portion of the door outer panel 2.
Moreover, as shown in FIG. 1, the triangular corner part 6 prescribed | regulated by the beltline part BL and the front pillar (not shown) is provided in the front-end part of the side window (door glass not shown).

In this embodiment, an outer mirror 7 (so-called door mirror) is provided so as to protrude outward from the door outer panel 2 at a position further rearward than the triangular corner portion 6. As a result, when viewed from the driver seated in the driver's seat, the range immediately after the front pillar can be visually recognized at a portion in front of the outer mirror 7 in the front side view.
The outer mirror 7 includes a door mirror main body 7A having a mirror (not shown) and a mirror base 7B for attaching the door mirror main body 7A to the door side.

  As shown in FIG. 1, the door inner panel 3 includes a front side 3a, a lower side 3b, a rear side 3c, and a vertical wall 3d surrounded by the sides 3a, 3b, 3c. Are integrally formed by press working, and door hinge brackets 8 and 9 are attached to the top and bottom of the front side 3a.

As shown in FIG. 5, the upper door hinge bracket 8 has a body side hinge bracket 8a, a door side hinge bracket 8b, and a hinge pin 8c. Similarly, the lower door hinge bracket 9 has a body side hinge. It has a bracket, a door side hinge bracket, and a hinge pin.
In addition, the above-described vertical wall portion 3d is formed with an opening portion 10 for door module placement and an opening portion 11 for speaker placement located in front of the opening portion 10.

  As shown in FIG. 1, corresponding to the upper door hinge bracket 8, the upper hinge rain 12 is attached between the front side portion 3 a and the vertical wall portion 3 d of the door inner panel 3, and the lower door hinge bracket 9 is attached. Correspondingly, the lower hinge rain 13 is attached between the front side portion 3a of the door inner panel 3 and the vertical wall portion 3d. Each of these hinge rains 12 and 13 is a reinforcement that reinforces the door hinge brackets 8 and 9 as door hinges provided at the door front end portion in the door main body 4.

Furthermore, as shown in FIG. 1, a rear rain upper 14 is joined and fixed to the upper part of the rear side portion 3c of the door inner panel 3, and a latch rain 15 is joined and fixed to an intermediate portion in the vertical direction of the rear side portion 3c. A rear rain lower 16 is joined and fixed to the lower portion of the rear side 3c.
The rear rain upper portion 14 reinforces a rear end attaching portion of a belt rain 21 described later, and the latch rain 15 reinforces a door latch attaching portion (not shown).

  Further, as shown in FIG. 1, a pair of front and rear glass guides 17 and 18 that guide the front and rear end portions of the side window so as to move up and down are attached to the door inner panel 3 so as to be directed substantially vertically. The above-described side window is configured to move up and down along the pair of front and rear glass guides 17 and 18.

  As shown in FIG. 1, corresponding to the attachment position of the lower door hinge bracket 9, between the front side 3 a of the door inner panel 3 and the vertical wall 3 d between the openings 10 and 11, An outer rain 19 having a relatively short length in the front-rear direction is attached in a substantially horizontal direction, and the outer rain 19 is configured to improve the tension rigidity of the door outer panel 2.

Further, as shown in FIG. 1, an impact bar 20 is provided in the door inner panel 3 and the door outer panel 2 as a reinforcing member extending in the vehicle front-rear direction from the door front end to the door rear end and fixed to the door front end and the door rear end. Is provided.
The impact bar 20 is for side collision and is a member having high strength in the vehicle width direction.

Further, the above-described impact bar 20 has an upper front end attached to a position corresponding to the vicinity of the upper door hinge bracket 11 and a lower rear end attached to a position corresponding to the base vicinity of the center pillar. Adopting a layout of tacks.
As shown in FIG. 1, the impact bar 20 has a plurality of strips along the longitudinal direction of the impact bar 20, for example, two strips of beads 20a and 20a, and joint flange portions 20b and 20c integrally formed at both front and rear ends. As shown in FIG. 1, the front flange flange 20 b of the impact bar 20 is connected to the upper hinge rain 12 directly below the front end of the belt rain 21, which will be described later, by spot welding or the like. It is fixed by the joining means, and the rear joining flange portion 20c is fixed to the rear rain lower 16 by joining means such as spot welding, whereby the impact bar 20 is moved in the front-rear direction from the door front end to the door rear end. And it attaches so that it may extend in the inclination direction of the low state before and after.

On the other hand, as shown in FIGS. 2, 3, and 4, a belt rain 21 that reinforces the inner side in the vehicle width direction of the door outer panel 2 is provided along the belt line portion BL. The belt rain 21 is a strength member that extends in the vehicle front-rear direction along the belt line portion BL.
Further, the intermediate portion in the front-rear direction of the belt rain 21 described above is reinforced by a reinforcing member 22 having a front-rear length that is about half of the length of the belt rain 22 in the front-rear direction.

As shown in FIGS. 3 and 4, the outer mirror 7 has a mirror attachment rain 23 for attaching the outer mirror 7 to the door body 4, and bolts inserted into a plurality of bolt insertion holes 23 a and 23 a formed in the mirror attachment rain 23. 24, the mirror base 7B of the outer mirror 7 is configured to be attached to the door body.
The mirror mounting rain 23 described above is attached to the door body 4 via the belt rain 21.

As shown in FIG. 4, the above-described door inner panel 3 includes an outer surface portion 3e on which the hemming portion of the door outer panel 2 is fitted, and a step-down portion extending inward in the vehicle width direction from the rear end of the outer surface portion 3e. 3f, a front end portion 3g extending rearward from the inner end of the stepped portion 3f, a front surface portion 3h extending inward in the vehicle width direction from the rear end of the front end portion 3g, and an inner end in the vehicle width direction of the front surface portion 3h And an inner surface portion 3i extending rearward from the portion.
The hinge rain 12 described above has a front end portion 12g, a front surface portion 12h, and an inner surface portion 12i corresponding to the front end portion 3g, the front surface portion 3h, and the inner surface portion 3i of the door inner panel 3.

  Then, as shown in FIG. 5, the front end portion 12g and the front surface portion 12h of the hinge rain 12 coincide with the front end portion 3g and the front surface portion 3h of the door inner panel 3 at the mounting position of the door hinge bracket 8, and are superposed. A hinge rain 12 reinforces the door hinge bracket 8 provided at the front end of the door.

On the other hand, as shown in FIG. 4, the front end portion 21a of the belt rain 21 described above extends to the front of the vehicle up to the front end portion 12g of the hinge rain 12, and the front end portion 3g of the door inner panel 3 is connected to the front end portion 21a. Three pieces are welded and fixed to the front end portion 12g of the hinge rain 12, and a three-piece weld fixing portion α is formed by these elements 12g, 21a and 3g.
Further, as shown in FIG. 1, the rear end portion 21 b of the belt rain 21 described above is fixed to the rear rain upper 14 by welding, thereby securing a double-support structure for the belt rain 21.

  Further, at a predetermined height position of the hinge rain 12 that coincides with the vertical height position of the belt rain 21 and the mirror mounting rain 23, the inner surface portion 12i of the hinge rain 12 is outwardly outward in the vehicle width direction as shown in FIG. The convex portion 12a is provided so as to protrude from the front portion 23b of the mirror mounting rain 23 and the belt rain 21. Three pieces of the convex portions 12a are fixed to each other by the elements 12a, 23b, and 21. A weld fixing portion β is formed, and a closed section 25 is formed between the belt rain 21 and the hinge rain 12.

Here, the rear portion 23c (see FIG. 4), the upper portion 23d (see FIG. 3), and the lower portion 23e (see FIG. 3) of the mirror mounting rain 23 are also welded and fixed to the belt rain 21 corresponding thereto. A closed cross-section 26 is formed between the belt rain 21 and the mirror mounting rain 23, so that both 21 and 23 are improved in rigidity.
In addition, the belt rain 21 corresponding to the convex portion 12a of the hinge rain 12 is integrally formed with a concave portion 21c recessed inward in the vehicle width direction, and the convex portion 12a of the hinge rain 12 and the belt rain 21 are integrated. The concave portion 21c of the mirror 21 and the front portion 23b of the mirror mounting rain 23 are fixed by welding, and the hinge rain 12 and the belt rain 21 are unevenly formed in the direction approaching each other by the convex portion 12a and the concave portion 21c. Thus, both the protruding amount of the convex portion 12a and the concave amount of the concave portion 21c are configured to be reduced.

The reinforcing member 22 described above is provided along the outer surface of the belt rain 22 between the rear portion 23c of the mirror mounting rain 23 and the rear rain upper 14, and the belt rain 22 is reinforced by the reinforcing member 22. Thus, the pipe-like impact bar along the conventional belt line BL is omitted, thereby reducing the weight of the entire door.
Furthermore, the conventional junction plate is omitted by forming a closed cross section 25 between the above-described three front and rear weld fixing portions α and β to increase the rigidity of the belt rain 21, thereby further increasing the overall door. It is intended to reduce weight.
In FIGS. 3 and 4, 21d is an opening at the portion of the belt rain 21 facing the mirror base 7B, and this opening 21d is used for fastening operation of the bolt 24 and wiring harness wiring. .

  As described above, the outer mirror mounting structure of the above embodiment has the hinge rain 12 for reinforcing the door hinge (see the door hinge bracket 8) provided at the front end of the door in the door body 4 including the door outer panel 2 and the door inner panel 3. And a belt rain 21 extending in the vehicle front-rear direction along the belt line BL of the door body 4 and a mirror attachment rain 23 for attaching the outer mirror 7 to the door body 4. The belt rain 21 extends forward to the front end 12g of the hinge rain 12 and the door inner panel 3 and the hinge rain at the front end. 12 and 3 are fixed by welding (see FIGS. 3 and 4).

  According to this configuration, the belt rain 21 extends forward to the front end portion 12g of the hinge rain 12, and the front end portion is welded and fixed by the door inner panel 3 and the hinge rain 12, so the belt rain 21 Both end portions are supported at both ends by the door inner panel 3, and the rigidity of the belt rain 21 can be improved by this both-end support structure, and the rigidity of the mirror mounting rain 23 is also improved. As a result, the mounting rigidity of the outer mirror 7 can be improved.

  In one embodiment of the present invention, the door inner panel 3 includes a front end portion 3g extending in the front-rear direction, a front portion 3h extending inward in the vehicle width direction from the rear end of the front end portion 3g, and the vehicle width of the front portion 3h. An inner surface portion 3i extending rearward from the inner end portion in the direction, and the hinge rain 12 corresponds to the front end portion 3g, the front surface portion 3h and the inner surface portion 3i of the door inner panel 3, and the front end portion 12g, the front surface portion 12h, and The inner surface 12i of the hinge rain 12 is provided with a convex portion 12a that protrudes outward in the vehicle width direction. The convex portion 12a is divided into three parts by the mirror mounting rain 23 and the belt rain 21. Sheet-welded and fixed, and a closed section 25 is formed between the belt rain 21 and the hinge rain 12 (see FIG. 4).

  According to this configuration, the front three-piece welding fixing portion α (three-piece welding portion of the belt rain 21 front end portion, the hinge rain 12 front end portion and the door inner panel 3) and the rear three-piece welding fixing portion β ( Since the closed section 25 is formed between the convex portion 12a of the hinge rain 12 and the three-piece welded portion of the mirror attachment rain 23 and the belt rain 21, the deformation of the belt rain 21 against vibrations can be suppressed. The front rigidity can be effectively increased.

  In one embodiment of the present invention, the belt rain 21 corresponding to the convex portion 12a of the hinge rain 12 is provided with a concave portion 21c recessed inward in the vehicle width direction, and the convex portion 12a of the hinge rain 12 and the above-mentioned The concave portion 21c of the belt rain 21 and the front portion 23b of the mirror mounting rain 23 are fixed by welding (see FIG. 4).

  According to this configuration, the protruding amount of the convex portion 12a of the hinge rain 12 and the recessed amount of the concave portion 21c of the belt rain 21 are both reduced, and the press workability of the hinge rain 12 and the belt rain 21 is improved. Further, since the protrusion amount and the recessed amount are small, it is possible to further suppress these deformations.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The door hinge of the present invention corresponds to the door hinge bracket 8 of the embodiment,
The present invention is not limited to the configuration of the above-described embodiment.
For example, in the above embodiment, the front side door 1 on the side of the driver's seat of the vehicle is illustrated, but it goes without saying that the outer mirror mounting structure of the present invention can be applied to the front side door on the side of the passenger seat of the vehicle. .

  As described above, the present invention includes a hinge rain that reinforces the door hinge provided at the front end of the door, and a vehicle longitudinal direction along the belt line of the door body, in the door body that includes the door outer panel and the door inner panel. And an outer mirror mounting structure in which the mirror mounting rain is attached to the door main body via the belt rain.

2 ... Door outer panel 3 ... Door inner panel 3g, 12g ... Front end part 3h, 12h ... Front part 3i, 12i ... Inner surface part 4 ... Door body 7 ... Outer mirror 8 ... Door hinge bracket (door hinge)
12 ... Hinge rain 12a ... Convex part 21 ... Belt rain 21c ... Concave part 23 ... Mirror mounting rain 25 ... Closed cross-section BL ... Belt line

Claims (3)

In the door body consisting of the door outer panel and the door inner panel, a hinge rain that reinforces the door hinge provided at the door front end,
A belt rain extending in the longitudinal direction of the vehicle along the belt line of the door body;
A mirror mounting rain for mounting the outer mirror to the door body,
An outer mirror mounting structure in which the mirror mounting rain is mounted to the door body via the belt rain,
While extending the belt rain to the front end of the hinge rain to the front of the vehicle,
An outer mirror mounting structure in which three pieces are welded and fixed at the front end portion with the door inner panel and the hinge rain. The door inner panel has a front end portion extending in the front-rear direction, a front portion extending inward in the vehicle width direction from the rear end of the front end portion, and an inner surface portion extending rearward from the inner end portion in the vehicle width direction of the front portion. ,
The hinge rain has a front end portion, a front surface portion and an inner surface portion corresponding to the front end portion, front surface portion and inner surface portion of the door inner panel,
The inner surface of the hinge rain is provided with a convex portion protruding outward in the vehicle width direction,
The convex part is welded and fixed by the mirror mounting rain and the belt rain,
The outer mirror mounting structure according to claim 1, wherein a closed cross section is formed between the belt rain and the hinge rain. The belt rain corresponding to the projection of the hinge rain is provided with a recess recessed inward in the vehicle width direction,
The outer mirror mounting structure according to claim 2, wherein the convex portion of the hinge rain, the concave portion of the belt rain, and the front portion of the mirror mounting rain are fixed by welding.

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