JP4742974B2 - Body side structure - Google Patents

Description

  The present invention relates to a vehicle body side structure.

  In a side surface structure of a vehicle body, particularly a door structure, there is one in which a mirror bracket is disposed in a door main body that is rotatably attached to the vehicle body by a hinge. For example, Patent Document 1 describes an automobile door structure provided with a door hinge attachment portion provided with a door mirror reinforcement for reinforcing a door mirror attachment portion.

By the way, in the actual vehicle body side structure, a force in the width direction of the door body may act on the mirror bracket (door mirror reinforcement). In this case, in the structure of Patent Document 1, rotational stress may occur with the front-rear direction of the door passing through the door hinge mounting portion as a rotation axis. As a countermeasure against this rotational stress, the frame rigidity of the entire door, particularly the mirror bracket, is used. It is desirable to keep it high.
JP 2003-154848 A

  In view of the above facts, an object of the present invention is to obtain a vehicle body side structure having high rigidity against rotational stress with a hinge mounting portion as a center.

According to the first aspect of the present invention, a door main body having a door outer and a door inner that are joined to each other at an outer peripheral portion thereof and rotatably attached to a vehicle body by a hinge, and provided on the door inner and supported by the hinge. Hinge support, a door check disposed between the vehicle body and the door inner, a mirror bracket disposed in the door body between the door outer and the door inner, and a mirror bracket. A hinge mounting portion to which the hinge is mounted, and a door check mounting portion that is provided on the mirror bracket and to which the door check is mounted, and the mirror bracket has a horizontal cross section around the door check mounting portion. It is joined to the door inner so as to constitute the door inner and closed section And wherein the Rukoto.

In this vehicle body side structure, the hinge is supported by a hinge support portion provided in the door inner, and the outside of the door can be rotated with respect to the vehicle body by the hinge. At the time of rotation, an appropriate feeling of moderation for the rotation of the door body is given to the operator by the door check.

The door body includes a door outer and a door inner joined at the outer periphery of each other. the Ru is disposed as a separate member. The this mirror bracket, in addition to the hinge mounting portion which hinge is attached, the door check mounting portion door check is attached is provided. As a result, the mirror bracket is supported at two points. For this reason, rigidity becomes high compared with the thing of 1 point support, and the rotational stress centering on a hinge attaching part can be suppressed. Since the mirror bracket is joined to the door inner around the door check mounting portion, the rigidity around the door check mounting portion is increased.

In particular, the mirror bracket is joined to the door inner so as to form a door inner and a closed cross section in the horizontal section around the door check mounting portion.

As described above, the mirror bracket and the door inner form a closed section with the door inner in a horizontal section around the door check mounting portion, so that the rigidity of the mirror bracket near the door check mounting portion is further improved.

According to a second aspect of the present invention, in the first aspect of the present invention, the door check mounting portion is disposed along the width direction of the door body.

Since the rotational stress on the mirror bracket often has a component in the width direction of the door body, if the door check mounting portion is arranged along the width direction of the door body as described in claim 2 , By utilizing the lateral rigidity of the check mounting portion and the door check (the rigidity in the width direction of the door body), the rigidity can be improved efficiently.

The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2 , the door check mounting portion is arranged so as to be substantially parallel to the hinge mounting portion.

  In this way, by setting the door check mounting portion and the hinge mounting portion substantially parallel to each other, it is possible to improve the installation accuracy of the mirror bracket with respect to the door main body.

  Since the present invention is configured as described above, a vehicle body side structure having high rigidity against rotational stress centered on the hinge mounting portion can be obtained.

  FIG. 1 partially shows a front portion of a door inner 110 of a door body 112 constituting the vehicle body side structure 102 according to the first embodiment of the present invention. 2 and 3 show a mirror bracket 120 disposed in the door body 112. FIG. The vehicle body side structure 102 of the present embodiment is applied to the support end side of the door 104 that is rotatably supported with respect to the vehicle body around one end. FIG. 4 shows the vehicle body side structure 102 as a cross-sectional view corresponding to the line IV-IV in FIG. 1 in a state where the mirror bracket 120 is assembled in the door main body 112. Similarly, FIG. 5 shows a cross-sectional view corresponding to the line V-V in FIG. 1 in a state where the mirror bracket 120 is assembled in the door body 112.

  As can be seen from FIGS. 4 and 5, the door 104 includes a door outer 108 and a door inner 110. The door outer 108 has a substantially flat plate shape, but the door inner 110 has a flat plate portion 110A located substantially in parallel to the door outer 108 on the inner side in the vehicle width direction than the door outer 108, and the door outer 108 from the flat plate portion 110A. The front wall portion 110B extends toward the end of the front wall portion, and the extended portion 110C extends further forward from the front wall portion 110B. The extension 110C partially overlaps the body pillar 106 when viewed in the vehicle width direction. The door outer 108 and the door inner 110 are joined to each other at the outer peripheral portion thereof to form a door main body 112.

  On the other hand, as can be seen from FIGS. 2 and 3, the mirror bracket 120 includes a mirror bracket main body 122, a main frame 124 extending upward from the mirror bracket main body 122, and the vertical direction of the main frame 124. The lower frame 126 is joined to the intermediate portion and extends downward. The main frame 124 is positioned above the door body 112 when the mirror bracket 120 is disposed in the door body 112, and forms the appearance of the door. As shown in FIG. 4, the lower frame 126 is formed in a substantially U-shaped cross section that is opened rearward, and this open portion serves as a holding portion 128 that holds the glass 136 of the door 104. Yes.

  As shown in FIG. 5, a hinge support portion 130 is provided on the front wall portion 110 </ b> B, and a door hinge 114 is provided between the hinge support portion 130 and the body pillar 106. By the door hinge 114, the door 104 can be rotated around the rotation center axis 114A.

  Further, as shown in FIGS. 2 and 3, the mirror bracket 120 is also provided with a hinge mounting portion 132 at a position corresponding to the hinge support portion 130. Therefore, the door hinge 114 is attached not only to the hinge support part 130 but also to the hinge attachment part 132 with respect to the door main body 112.

  As shown in FIGS. 4 to 6, a door weather 134 is attached to the door inner 110 at a position on the inner side in the vehicle width direction than the door hinge 114. The door weather 134 is disposed so as to surround the outer periphery of the door main body 112, and is in close contact with the vehicle body (the body pillar 106 and the like) with the door 104 closed, so that foreign matter such as moisture and dust is inadvertently brought into the vehicle interior. I try not to enter.

  As shown in FIG. 4, a door check 174 is disposed further inside than the door weather 134 in the vehicle width direction. The door check 174 includes a plate-shaped (or rod-shaped) door check main body 182 arranged along the longitudinal direction of the vehicle body, and a door check bracket 178 through which the door check main body 182 is inserted. Further, the door check bracket 178 is provided with a sliding portion 180 that contacts the door check main body 182 to generate sliding resistance. The front end of the door check 174 is rotatably supported by a support member 176 attached to the body pillar 106, but the rear end of the door check 174 is held by a sliding member (not shown), and the door 104 rotates. As a result, the door check main body 182 slides on the door check bracket 178 so that a predetermined resistance and a feeling of moderation act.

  As shown in FIGS. 2 and 3, the mirror bracket main body 122 of the mirror bracket 120 is provided with a door check mounting portion 118 below the hinge mounting portion 132, and the door check bracket 178 is provided with the door check bracket 178. It is attached to the attachment portion 118. That is, the mirror bracket 120 is supported by two places, the hinge attachment portion 132 and the door check attachment portion 118.

  The position from the front end of the door check 174 to the intermediate portion is inserted through the opening 110H formed in the door inner 110. The door check mounting portion 118 is also formed with an insertion hole 118H through which the door check 174 is inserted.

  As can be seen from FIG. 4, the periphery of the door check mounting portion 118 of the mirror bracket 120 is shaped to be separated from the door inner 110, and the mirror bracket 120 is connected to the door inner 110 around the separated portion. A joining portion 116 to be joined is set. For this reason, between the mirror bracket 120 and the door inner 110, a closed cross section 138 is formed around the door check mounting portion 118 and has a closed shape when viewed in a horizontal cross section.

  Further, as can be seen from FIGS. 4 and 5, both the hinge mounting portion 132 and the door check mounting portion 118 of the mirror bracket 120 are set so as to face the width direction of the door main body 112. Thereby, as a result, the hinge attaching part 132 and the door check attaching part 118 are substantially parallel.

  As shown in detail in FIG. 7, an upper inclined surface 140 and a lower inclined surface 142 that gradually spread upward and downward from the door check mounting portion 118 toward the front of the vehicle are provided above and below the door check mounting portion 118 of the mirror bracket 120. Is formed. The upper inclined surface 140, the lower inclined surface 142, the door inner 110, and the door check mounting portion 118 form a bag-like portion 144 that has a bag-like cross section when viewed in a vertical cross-section. Further, on the front side of the upper inclined surface 140 and the lower inclined surface 142, step portions 146 and 148 that form a gap 150 with the door inner 110 are formed.

  As shown in FIGS. 2 to 4, one end of a lower frame bracket 152 is joined to the mirror bracket 120 below the door check mounting portion 118. The cross-sectional shape of the lower frame bracket 152 is a flat U-shape that is open in the width direction of the door 104, and the other end is joined to the lower frame 126. Therefore, the lower frame 126 is joined to the lower part of the mirror bracket 120 via the lower frame bracket 152.

  Next, the operation of this embodiment will be described.

  As described above, in the door 104 of the present embodiment, the mirror bracket 120 is supported by the two locations of the hinge mounting portion 132 and the door check mounting portion 118, and the frame rigidity of the mirror bracket 120 is particularly improved as a whole of the door 104. It is high. In other words, the door check mounting portion 118 is set at a position symmetrical to the main frame 124 with respect to the hinge mounting portion 132, and the mirror bracket 120 is attached to the vehicle body via the door hinge 114 and the door check 174. Will be. Therefore, the rotational movement R1 centering on the axis C1 (see FIG. 2) extending in the front-rear direction of the door through the hinge mounting portion 132 of the mirror bracket 120 is used as the lateral rigidity of the door check 174 (the rigidity in the width direction of the door 104). Can be suppressed. For example, when a negative pressure is applied to the door 104 outside the vehicle, a force outward in the width direction acts on the main frame 124 and the vicinity thereof. Stress can be suppressed.

  In the present embodiment, as shown in FIGS. 4 and 5, the hinge mounting portion 132 and the door check mounting portion 118 of the mirror bracket 120 are both set to face in the width direction of the door body 112. Has been. That is, since the hinge mounting portion 132 and the door check mounting portion 118 have surfaces that face the rotational movement direction of the mirror bracket 120, the lateral rigidity of the door check 174 can be efficiently utilized to further increase the frame rigidity. Can be improved.

  Further, in the present embodiment, as shown in FIG. 4, a closed cross section 138 viewed in the horizontal direction is configured by the door inner 110 and the mirror bracket 120 around the door check mounting portion 118 of the mirror bracket 120. Moreover, the upper inclined surface 140, the lower inclined surface 142, the door inner 110, and the door check mounting portion 118 form a bag-like portion 144 that has a bag-like cross section when viewed in a vertical cross section. As a result, the rigidity around the door check mounting portion 118 is improved, so that the frame rigidity can be further improved, and the effect of suppressing the rotational stress can be effectively exhibited. In addition, since the closed cross section 138 is configured to improve the rigidity of the door check mounting portion 118, inadvertent displacement and deformation of the door check mounting portion 118 are suppressed, and the durability of the door check 174 is improved. .

  In the present embodiment, the lower frame 126 is joined to the mirror bracket 120 whose rotation is suppressed as described above. Therefore, the rotation of the lower frame 126 is also suppressed by the mirror bracket 120, and the overall frame rigidity is improved. Further, in the present embodiment, the lower frame 126 is joined to the lower portion of the lower frame 126 below the door check mounting portion 118 of the mirror bracket 120. That is, the upper part of the lower frame 126 is located above the hinge mounting part 132 and the lower part is located below the lower frame 126, and spans two sections of the hinge mounting part 132 and the door check mounting part 118. become. For this reason, the rotation of the mirror bracket 120 can be further effectively suppressed.

  As can be seen from the above description, in this embodiment, the mirror bracket 120 is supported at two points of the hinge mounting portion 132 and the door check mounting portion 118, thereby improving the frame rigidity and rotating around the door longitudinal direction. Stress can be effectively suppressed. In addition, in order to improve the frame rigidity of the mirror bracket 120, it is not necessary to increase the plate thickness or add a reinforcing member, so that the mass is not increased.

  Further, in the present embodiment, the door 104 and each member around the door 104 are also effective in improving the building accuracy of these members. That is, both the door hinge 114 and the door check 174 that are attachment parts to the body pillar 106 are attached to the mirror bracket 120. Thus, by attaching the door hinge 114 and the door check 174 to one member, the relative positional relationship between them does not change carelessly, and the building accuracy is improved.

  Moreover, the hinge attaching part 132 and the door check attaching part 118 are set so that it may become the surface which faces the width direction of any door main body 112, and these are substantially parallel. For this reason, the position with respect to the door inner 110 of the mirror bracket 120 can be determined more accurately, and the installation accuracy is improved.

  Moreover, in this embodiment, it has the outstanding applicability | paintability also at the time of the coating in the manufacturing process with respect to the mirror bracket 120. That is, as shown in FIG. 6, a gap 150 is formed between the mirror bracket 120 and the door inner 110 by the stepped portions 146 and 148 in a joined state to the door inner 110. Since the gap 150 serves as a path for the paint at the time of the rust-proof coating, the paint can be reliably distributed also to the bag-like portion 144 between the door inner 110 and the mirror bracket 120.

  In addition, the upper inclined surface 140 and the lower inclined surface 142 formed respectively above and below the door check mounting portion 118 prevent the occurrence of a region where the paint does not flow during painting. That is, as in the comparative example shown in FIG. 9B, instead of the upper inclined surface 140 and the lower inclined surface 142, the upper horizontal plane 190 and the lower horizontal plane 192 that are orthogonal to the door check mounting portion 118 are formed. There is a possibility that a region 196 in which the paint does not flow into the corner portion 194 is generated. On the other hand, in this embodiment, as shown in FIG. 9A, the corners 154 of the door check mounting portion 118 and the upper inclined surface 140 and the lower inclined surface 142 are obtuse. The paint can easily flow.

  In FIG. 10, a mirror bracket 220 and a lower frame 226 according to a second embodiment of the present invention are shown with their lower portions enlarged. In the second embodiment, the basic configuration of the door is the same as that of the first embodiment, and thus the description thereof is omitted. Hereinafter, only the difference of the second embodiment from the first embodiment will be described.

  In the second embodiment, a continuous surface 224 that connects the hinge mounting portion 132 and the door check mounting portion 118 in a straight line is formed. The continuous surface 224 has a component in the width direction of the door 104, and the positions of the hinge mounting portion 132 and the door check mounting portion 118 are more firmly maintained as compared to the first embodiment. For this reason, the frame rigidity is further improved, and the rotation of the mirror bracket 220 can be more reliably suppressed.

  Further, a lower frame attachment portion 228 to which the lower portion of the lower frame 226 is directly fixed and attached is provided at the lower portion of the mirror bracket 220. For this reason, rotation of the lower frame 226 can be more reliably suppressed than in the first embodiment, and the frame rigidity of the mirror bracket 120 is improved.

  Furthermore, in the mirror bracket 220 of the second embodiment, the joint portion 116 with the door inner 110 (see FIGS. 1 and 4) is set so as to expand to the lower frame attachment portion 228. Thereby, since the mirror bracket 220 is more firmly joined to the door inner 110 with a wide joining area, the rotational stress can be more effectively suppressed.

  In addition, in the second embodiment, the step of the step 146 above the door check mounting portion 118 is made larger than the step of the step 148 below. Thereby, a coating material can be spread more reliably between the door inner 110 and the mirror bracket 220 than in the first embodiment.

It is a perspective view which shows the front part of the door inner of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied. It is a perspective view which shows the mirror bracket of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied. It is a perspective view which shows the mirror bracket of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied in the direction different from FIG. It is sectional drawing which shows the front part of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied with the cross section equivalent to the IV-IV line of FIG. It is sectional drawing which shows the front part of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied in the cross section equivalent to the VV line of FIG. It is sectional drawing which shows the front part of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied with the cross section equivalent to the VI-VI line of FIG. It is a perspective view which expands partially and shows the mirror bracket of the door to which the vehicle body side structure of the first embodiment of the present invention is applied. It is a perspective view which expands partially the mirror bracket of the door to which the vehicle body side structure of 1st Embodiment of this invention was applied, and shows in the step part vicinity. It is explanatory drawing which shows the flow of the coating material to the bag-shaped part comprised by the mirror bracket in the vehicle body side structure, (A) is the case of 1st Embodiment of this invention, (B) is the case of a comparative example. It is a perspective view which expands partially and shows the mirror bracket and lower frame of the door to which the vehicle body side structure of the first embodiment of the present invention is applied.

Explanation of symbols

102 Car Body Side Structure 104 Door 106 Body Pillar 108 Door Outer 110 Door Inner 110A Flat Plate 110B Front Wall 110C Extension 110H Opening 112 Door Main Body 114 Door Hinge 114A Rotating Center Shaft 116 Joint 118 Door Check Mounting 118H Inserting Hole 120 Mirror bracket 122 Mirror bracket body portion 124 Main frame 126 Lower frame 128 Holding portion 130 Hinge support portion 132 Hinge mounting portion 134 Door weather 136 Glass 138 Closed section 140 Upper inclined surface 142 Lower inclined surface 144 Bag-shaped portion 146 Stepped portion 148 Stepped portion 150 Clearance 152 Lower frame bracket 154 Corner portion 174 Door check 178 Door check bracket 180 Sliding portion 182 Door check body

Claims (3)

A door body that includes a door outer and a door inner joined at the outer periphery of each other, and is pivotally attached to the vehicle body by a hinge;
A hinge support provided on the door inner and supported by the hinge;
A door check disposed between the vehicle body and the door inner;
A mirror bracket disposed in the door body between the door outer and the door inner;
A hinge mounting portion provided on the mirror bracket to which the hinge is mounted;
A door check mounting portion provided on the mirror bracket to which the door check is mounted;
Have
The vehicle body side structure characterized in that the mirror bracket is joined to the door inner so as to form a closed cross section with the door inner in a horizontal section around the door check mounting portion. The vehicle body side structure according to claim 1 , wherein the door check mounting portion is disposed along the width direction of the door main body. The vehicle body side structure according to claim 1 or 2 , wherein the door check mounting portion is disposed so as to be substantially parallel to the hinge mounting portion.

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