JP2004123066A - Back pillar - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a back pillar allowing easy assembling work even when a reinforcement property is improved for supporting a back door. <P>SOLUTION: A back pillar outer 120 of the back pillar 1 supports a back door 104 by a hinge 170 laterally turnably, and a reinforcement 130 forms an insertion space 160 having an opening forward part for passing a welding gun between it and the back pillar outer 120. In the insertion space 160, left and right sides of a connection section 2 are coupled to the intermediate part 131 of the reinforcement 130 and a turning section mounting part 121b of the back pillar outer 120 to connect the back pillar outer 120 to the reinforcement 130. The connection section 2 is constituted of a right member 6 and a left member 7 that are joinably divided to right and left. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a back pillar for supporting a back door of a vehicle to be rotatable in a lateral direction.
[0002]
[Prior art]
Conventionally, as shown in FIG. 5, a back pillar of a vehicle does not have an opening at a rear portion of a body side outer panel 101 constituting one outer surface. A back pillar 110 forming one side edge of the opening 103 is known.
[0003]
The back pillar 110 includes a back pillar outer 120 having one end joined to a rear end of the body side outer panel 101 and extending in the vehicle width direction, and a rear end facing one end of the back pillar outer 120 in the vehicle front-rear direction. , A connecting portion 140 connecting the back pillar outer 120 and the rain force 130, and one end of the reinforcing member 130 with the connecting portion 140 connecting the back pillar outer 120 and the rain force 130. A back pillar inner 150 is connected to the front end and the other end is connected to the other end of the back pillar outer 120.
[0004]
The back pillar outer 120 has an intermediate portion 121 protruding forward. One end of a hinge 170 is attached to the vehicle outer portion 121a in the intermediate portion 121, and the other end of the hinge 170 has a back door opening. A back door 104 that opens and closes 103 is attached. Thus, the back pillar outer 120 supports the back door 104 via the hinge 170 so as to be rotatable in the lateral direction.
[0005]
On the other hand, the reinforcement 130 has an intermediate portion 131 projecting toward the body side outer panel 101, and a front wall portion 134 in the intermediate portion 131 has a gap 180 with the body side outer panel 101, and has a front flange 133 as a front joint portion. The front flange 133 and the outer side portion 121a of the back pillar outer 120 form an insertion space 160 between the back pillar outer 120 and the reinforce 130 where the welding gun is inserted. The front wall portion 134 forms a gap 180 between the body side outer panel 101 and the front flange 133.
[0006]
In the insertion space 160, the connecting portion 140 is joined to the middle portion 131 of the reinforcement 130 on the left and right sides, and to the hinge attachment portion 121b to which one end of the hinge 170 is attached at the vehicle outer portion 121a of the back pillar outer 120, The back pillar outer 120 and the reinforcement 130 are connected.
[0007]
Therefore, in this back pillar 110, the hinge mounting portion 121b of the back pillar outer 120 is reinforced in the lateral direction by the reinforce 130 via the connecting portion 140, so that the back door 104 is easily supported so as to be rotatable in the lateral direction. It is possible to do.
[0008]
[Problems to be solved by the invention]
However, in such a back pillar 110, the lateral width of the opening 161 formed in front of the insertion space 160 is larger than the lateral width between the vehicle outer side portion 121a of the back pillar outer 120 and the intermediate portion 131 of the reinforce 130. Since it is small, the width of the connecting portion 140 connecting the two portions 121a and 131 is larger than the width of the opening 161. For this reason, when assembling the back pillar 110, the connecting portion 140 cannot be inserted into the insertion space 160 from the opening 161 after the reinforcement 130 is aligned with the back pillar outer 120.
[0009]
For this reason, when assembling the back pillar 110, one of the left and right sides of the connecting portion is joined in advance to one of the back pillar outer 120 or the reinforcement 130, and when the both members 120 and 130 are combined, the connecting portion 140 is formed. The other of the left and right sides is joined to the other of the two members 120 and 130.
[0010]
However, in this case, since the connecting portion 140 is joined to the other member with the space between the two members 120 and 130 closed, the movable range of the welding gun inserted from the opening 161 is narrow, and the connecting portion 140 To the other member is difficult. Therefore, the back pillar 1 has a problem that the assembling work becomes difficult due to the enhancement of the reinforcing property for supporting the back door 104.
[0011]
The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a back pillar that can easily perform an assembling operation even if reinforcement is enhanced to support a back door.
[0012]
[Means for Solving the Problems]
In order to solve the above problem, in the back pillar according to the first aspect of the present invention, one end is joined to the rear end of the body side outer panel and extends in the vehicle width direction, and the intermediate portion projects forward, and A back pillar outer that supports a back door that opens and closes the back door opening via a hinge at a vehicle outer side via a hinge, and a rear end joined to one end of the back pillar outer. While extending in the front-rear direction, an intermediate portion projects to the body side outer panel, and a front joint portion is formed in the front wall portion of the intermediate portion with a gap with the body side outer panel, and a front joint portion is formed. A reinforce that forms an insertion space with an open front in which a welding gun is inserted between the back pillar outer and the back pillar outer; A connecting portion that joins the intermediate portion of the force and a hinge mounting portion to which one end of the hinge is mounted on the vehicle outer portion of the back pillar outer, and connects the back pillar outer and the reinforce; The back pillar has one end joined to the front end of the reinforcement and the other end joined to the other end of the back pillar outer in a state where a portion connects the back pillar outer and the reinforce with closing the insertion space. An inner part is provided, and the connecting portion is constituted by a right member and a left member which are divided into right and left so as to be joined.
[0013]
When assembling the back pillar in such a configuration, the right member and the left member of the connecting portion are joined at a position where they can be joined to the middle portion of the reinforce and the hinge attachment portion of the back pillar outer, respectively. When the force and the back pillar outer are joined, the welding work in the insertion space formed by the two members is only the joining portion between the right and left members, which facilitates the welding operation.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
[0015]
FIG. 1 is an upper cross-sectional view of a rear right side of a vehicle provided with a back pillar 1 according to an embodiment of the present invention. In this vehicle S, an opening is not formed in a rear portion 101a of a body side outer panel 101 that forms a right outer surface of the vehicle body 10, while a back door opening 103 is formed in a rear surface 102.
[0016]
The back pillar 1 forms a right edge of the back door opening 103, and has a back pillar outer 120 having one end joined to the rear end of the body side outer panel 101 and extending in the vehicle width direction; The reinforcement 130 extends in the vehicle front-rear direction with its rear end aligned with one end of the back pillar outer 120, a connecting portion 140 for connecting the back pillar outer 120 and the reinforcement 130, and a connecting portion 140 for connecting the back pillar outer 120 to the back pillar outer 120. One end is joined to the front end of the reinforcement 130 in a state where the reinforcement 120 and the reinforcement 130 are connected, and the back pillar inner 150 is joined to the other end of the back pillar outer 120 at the other end.
[0017]
The back pillar outer 120 has an intermediate portion 121 protruding forward. One end of a hinge 170 is attached to the vehicle outer portion 121a in the intermediate portion 121, and the other end of the hinge 170 has a back door opening. A back door 104 that opens and closes 103 is attached. Thus, the back pillar outer 120 supports the back door 104 via the hinge 170 so as to be rotatable in the lateral direction.
[0018]
On the other hand, the reinforcement 130 has an intermediate portion 131 projecting toward the body side outer panel 101, and a front wall portion 134 in the intermediate portion 131 has a gap 180 with the body side outer panel 101, and has a front flange 133 as a front joint portion. The front flange 133 and the outer side portion 121a of the back pillar outer 120 form an insertion space 160 between the back pillar outer 120 and the reinforce 130 where the welding gun is inserted. The front wall portion 134 forms a gap 180 between the body side outer panel 101 and the front flange 133.
[0019]
In the insertion space 160, the left and right sides of the connecting portion 2 are joined to the intermediate portion 131 of the reinforce 130 and the hinge mounting portion 121b to which one end of the hinge 170 is mounted at the vehicle outer side 121a of the back pillar outer 120, The back pillar outer 120 and the reinforcement 130 are connected.
[0020]
Therefore, in the back pillar 1, since the hinge mounting portion 121b of the back pillar outer 120 is reinforced in the lateral direction by the reinforce 130 via the connecting portion 2, the back door 104 is easily supported so as to be rotatable in the lateral direction. It is possible to do.
[0021]
In addition, the connecting portion 2 includes an upper connecting portion 3 for connecting the upper side as shown in FIG. 2 between the hinge mounting portion 121b of the back pillar outer 120 and the intermediate portion 131 of the reinforcement 130, and an intermediate portion between the upper and lower sides. And a lower connecting portion 5 connecting the lower side. Further, as shown in FIG. 3, each of the connecting portions 3, 4, and 5 is composed of a right-side member 6 and a left-side member 7 each having a U-shaped cross section and divided into right and left so as to be connectable.
[0022]
A weld nut 8 is welded to the left side member 7 of the upper connecting portion 3 and the lower connecting portion 5, and an upper hinge 171 (upper and lower sides of a hinge 170) is formed on the weld nut 8 via a hinge mounting portion 121b. One end of a lower hinge (not shown) and one end of a lower hinge (not shown) are attached with bolts 9.
[0023]
The left side member 7 of the intermediate connecting portion 4 is provided with mounting holes 41, 41 on the left and right as shown in FIG. 3, and the two mounting holes 41, 41 are pivotally supported in the middle as shown in FIG. One end of the check link 172 is attached via a hinge attachment portion 121b, and the other end of the check link 172 regulates the opening of the back door 104.
[0024]
In such a configuration, when assembling the back pillar 1, first, the right member 6 is moved to the reinforcement 130 so that the right member 6 and the left member 7 of each of the connecting portions 3, 4, 5 abut in advance on the vehicle body assembly line. The intermediate portion 131 and the left member 7 are joined to the hinge mounting portion 121b of the back pillar outer 120, respectively.
[0025]
Next, the right side member 6 of each of the connecting portions 3, 4, and 5 joined to the reinforcement 130 is joined to the back pillar outer 120 while the rear flange 132 of the reinforcement 130 is aligned with the right flange 122 of the back pillar outer 120. The reinforcement 130 is positioned on the back pillar outer 120 by abutting the left side member 7, and the rear flange 132 is joined to the right flange 122.
[0026]
Next, a welding gun is inserted through an opening 161 opened in the front of an insertion space 160 formed between the back pillar outer 120 and the reinforcement 130, and the right member 6 and the left member 6 of each of the connecting portions 3, 4, and 5 are inserted. The member 7 is joined.
[0027]
Next, as shown in FIG. 1, the back pillar outer 120 is disposed on the right side of the back door opening 103 in the vehicle body assembly line, and the rear flange 101b of the body side outer panel 101 is joined to the right flange 122.
[0028]
With the connecting portion 2 connecting the back pillar outer 120 and the reinforcement 130, finally, the welding gun is inserted into the gap 180 while closing the insertion space 160 with the back pillar inner 150, and the right flange 151 is connected to the front side of the reinforcement 130. The back pillar 1 is assembled by joining the left flange 152 to the left flange 123 of the back pillar outer 120.
[0029]
As described above, in the back pillar 1 of the present embodiment, when assembling the back pillar 1, the right member 6 and the left member 7 of the connecting portion 2 are previously combined with the hinge mounting portion 121 b of the back pillar outer 120 and the reinforcement 130. If the two members 120 and 130 are joined together, the welding location in the insertion space 160 is limited to only the joint between the right member 6 and the left member 7. Therefore, welding work becomes easy. Therefore, in the back pillar 1 of the present embodiment, the assembling work can be easily performed even if the reinforcing property is increased to support the back door 104.
[0030]
【The invention's effect】
As described above, in the back pillar according to the first aspect of the present invention, when the reinforce and the back pillar outer in which the right member and the left member of the connecting portion are respectively joined in advance are formed, the back pillar is formed by both members. The welding operation of the welding gun to be inserted into the inserted insertion space is limited to only the joining portion between the right and left members, thereby facilitating the joining operation. Therefore, the assembling work can be easily performed even if the reinforcing property is enhanced to support the back door.
[Brief description of the drawings]
FIG. 1 is an upper cross-sectional view of a rear right side of a vehicle provided with a back pillar according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a main part of a back pillar outer.
FIG. 3 is a perspective view of a connecting portion.
FIG. 4 is a cross-sectional view of an upper and lower middle portion on a rear right side of a vehicle provided with a back pillar according to an embodiment of the present invention.
FIG. 5 is an upper cross-sectional view of a rear right side of a vehicle provided with a conventional back pillar.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Back pillar 2 Connecting part 6 Right member 7 Left member 10 Body 101 Body side outer panel 102 Rear surface 103 Opening 104 Back door 120 Back pillar outer 121 Intermediate part 121a Vehicle outside part 121b Hinge mounting part 130 Reinforce 131 Intermediate part 133 Front flange 134 front wall 150 back pillar inner 160 insertion space 170 hinge 180 gap

Claims (1)

One end is joined to the rear end of the body side outer panel and extends in the vehicle width direction, and an intermediate portion protrudes forward. A back opening / closing the back door opening via a hinge at a vehicle outer portion in the intermediate portion. A back pillar outer that supports the door rotatably in the lateral direction,
A rear end side is joined to one end side of the back pillar outer and extends in the vehicle front-rear direction, and an intermediate portion projects to the body side outer panel, and a front wall portion in the intermediate portion has a gap with the body side outer panel. A front joint portion is formed, and a reinforce forming a front opening opening space into which a welding gun is inserted between the front joint portion and the back pillar outer,
In this insertion space, the left and right sides are joined to the intermediate portion of the reinforce and a hinge attachment portion to which one end of the hinge is attached at the vehicle outer portion of the back pillar outer, and the back pillar outer and the reinforce are joined. And a connecting portion for connecting
The connecting portion closes the insertion space in a state where the back pillar outer and the reinforce are connected, and one end is joined to the front end of the reinforce, and the other end is joined to the other end of the back pillar outer. With back pillar inner,
The said connection part was comprised from the right member and the left member divided into right and left so that joining was possible, The back pillar characterized by the above-mentioned.

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