JP3982376B2 - Back pillar - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a back pillar that supports a back door of a vehicle so as to be pivotable in a lateral direction.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as shown in FIG. 5, a back pillar of a vehicle has a back door formed on a rear surface 102 of a vehicle body 100 that does not have an opening at a rear portion of a body side outer panel 101 constituting one outer surface. A back pillar 110 that constitutes 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 the rear end of the body side outer panel 101 and extending in the vehicle width direction, and a vehicle front-rear direction by aligning the rear end with one end of the back pillar outer 120. And a connection portion 140 that connects the back pillar outer 120 and the reinforcement 130, and one end side of the reinforcement 130 is connected to the back pillar outer 120 and the reinforcement 130. A back pillar inner 150 is provided which is joined to the front end side and the other end side is joined to the other end side of the back pillar outer 120.
[0004]
The back pillar outer 120 has a middle portion 121 protruding forward, and one end side of a hinge 170 is attached to the vehicle outer side portion 121 a in the middle portion 121, and a back door opening is formed on the other end side of the hinge 170. A back door 104 that opens and closes 103 is attached. As a result, the back pillar outer 120 supports the back door 104 via the hinge 170 so as to be pivotable in the lateral direction.
[0005]
On the other hand, in the reinforcement 130, the intermediate portion 131 protrudes to the body side outer panel 101. The front side portion 133 in the intermediate portion 131 has the body side outer panel 101 and the gap 180, and a front flange 133 as a front side joining portion. In addition, the front flange 133 and the outer side portion 121a of the back pillar outer 120 form an insertion space 160 having an opening in the front where the welding gun is inserted, between the back pillar outer 120 and the reinforcement 130. 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 intermediate portion 131 of the reinforcement 130 on the left and right sides and the hinge mounting portion 121 b to which one end side of the hinge 170 is attached at the vehicle outer side portion 121 a 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 laterally reinforced to the reinforcement 130 via the connecting portion 140, so that the back door 104 is easily supported so as to be able to rotate 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 part 121 a of the back pillar outer 120 and the intermediate part 131 of the reinforcement 130. Since it is small, the width of the connecting portion 140 that connects both the portions 121 a and 131 is larger than the width of the opening 161. For this reason, when the back pillar 110 is assembled, 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 previously joined to one of the back pillar outer 120 and the reinforcement 130, and when the both members 120 and 130 are combined, The other of the left and right sides is joined to the other of the members 120 and 130.
[0010]
However, in this case, since the connecting portion 140 is joined to the other member in a state where both the members 120 and 130 are closed, the movable range of the welding gun inserted from the opening 161 is narrow, and the connecting portion 140 is connected. Is difficult to join to the other member. Therefore, the back pillar 1 has a problem that it is difficult to assemble because the reinforcing property is enhanced to support 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 be easily assembled even if the reinforcement is enhanced to support the back door.
[0012]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the back pillar according to claim 1 of the present invention, one end side is joined to the rear end side of the body side outer panel and extends in the vehicle width direction, and the intermediate portion protrudes forward. A back pillar outer that supports the back door that can open and close the back door opening via a hinge at a vehicle outer side, and a rear end joined to one end of the back pillar outer. While extending in the front-rear direction and an intermediate portion projecting to the body side outer panel, a front joint portion is formed on the front wall portion in the intermediate portion with a gap with the body side outer panel, and the front joint portion and A reinforcement that forms an insertion space with an opening in the front where the welding gun is inserted between the back pillar outer and the left and right sides of the insertion space are the left and right sides. A connecting portion that joins the intermediate portion of the force and a hinge mounting portion to which one end of the hinge is attached at the vehicle outer side portion of the back pillar outer, and connects the back pillar outer and the reinforcement, and this connection A back pillar in which a portion closes the insertion space in a state where the back pillar outer and the reinforcement are connected, one end side is joined to the front end side of the reinforcement, and the other end side is joined to the other end side of the back pillar outer. An inner part is provided, and the connecting part is composed of a right side member and a left side member that are divided into left and right sides so as to be joined.
[0013]
In assembling the back pillar in such a configuration, the right side member and the left side member of the connecting portion are joined at positions where they can be joined to the intermediate portion of the reinforcement and the hinge mounting portion of the back pillar outer, respectively. When the force and the back pillar outer are joined, the welding location in the insertion space formed by both members is only the joining portion between the right member and the left member, so that the welding operation is facilitated.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0015]
FIG. 1 is an upper cross-sectional view on the right side of a rear part of a vehicle provided with a back pillar 1 according to an embodiment of the present invention. In the vehicle S, an opening is not formed in the rear portion 101 a of the body side outer panel 101 constituting the right outer surface of the vehicle body 10, while a back door opening 103 is formed in the rear surface 102.
[0016]
The back pillar 1 constitutes the right edge of the back door opening 103, and 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 rear pillar side 120 is aligned with one end side of the back pillar outer 120 and extends in the vehicle front-rear direction, the connecting portion 140 that connects the back pillar outer 120 and the rain force 130, and the connecting portion 140 is the back pillar outer. A back pillar inner 150 is provided that has one end joined to the front end of the reinforcement 130 and the other end joined to the other end of the back pillar outer 120 in a state where the 120 and the reinforcement 130 are connected.
[0017]
The back pillar outer 120 has a middle portion 121 protruding forward, and one end side of a hinge 170 is attached to the vehicle outer side portion 121 a in the middle portion 121, and a back door opening is formed on the other end side of the hinge 170. A back door 104 that opens and closes 103 is attached. As a result, the back pillar outer 120 supports the back door 104 via the hinge 170 so as to be pivotable in the lateral direction.
[0018]
On the other hand, in the reinforcement 130, the intermediate portion 131 protrudes to the body side outer panel 101. The front side portion 133 in the intermediate portion 131 has the body side outer panel 101 and the gap 180, and a front flange 133 as a front side joining portion. In addition, the front flange 133 and the outer side portion 121a of the back pillar outer 120 form an insertion space 160 having an opening in the front where the welding gun is inserted, between the back pillar outer 120 and the reinforcement 130. 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 reinforcement 130 and the hinge mounting portion 121b to which one end side of the hinge 170 is attached at the vehicle outer side portion 121a of the back pillar outer 120, The back pillar outer 120 and the reinforcement 130 are connected.
[0020]
Therefore, in this back pillar 1, the hinge mounting portion 121b of the back pillar outer 120 is laterally reinforced to the reinforcement 130 via the connecting portion 2, so that the back door 104 is easily supported so as to be pivotable in the lateral direction. It is possible to do.
[0021]
Further, the connecting portion 2 includes an upper connecting portion 3 that connects the upper side between the hinge mounting portion 121b of the back pillar outer 120 and the intermediate portion 131 of the reinforcement 130, as shown in FIG. Are comprised of an intermediate connecting part 4 for connecting the two and a lower connecting part 5 for connecting the lower side. Furthermore, as shown in FIG. 3, each connection part 3, 4, and 5 is comprised from the right side member 6 and the left side member 7 of the cross-sectional U-shape divided | segmented right and left so that joining was possible respectively.
[0022]
A weld nut 8 is welded to the left side member 7 of the upper connection portion 3 and the lower connection portion 5, and an upper hinge 171 (upper hinge 171 (upper and lower sides) of the hinge 170 is formed on the weld nut 8 via a hinge mounting portion 121b. One end of the lower hinge (not shown) and the lower hinge (not shown) are attached with bolts 9.
[0023]
Also, 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 both 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 degree of the back door 104.
[0024]
In such a configuration, when the back pillar 1 is assembled, first, the right member 6 is attached to the reinforcement 130 so that the right member 6 and the left member 7 of each of the connecting portions 3, 4, 5 are in contact with each other in advance in the vehicle body assembly line. The intermediate part 131 and the left side member 7 are joined to the hinge attachment part 121b of the back pillar outer 120, respectively.
[0025]
Next, the right 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 against the left member 7 and the rear flange 132 is joined to the right flange 122.
[0026]
Next, a welding gun is inserted from an opening 161 opened forward of an insertion space 160 formed between the back pillar outer 120 and the reinforcement 130, and the right side member 6 and the left side of each of the connecting portions 3, 4, 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 101 b 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, the welding gun is inserted into the gap 180 while the back pillar inner 150 is closed up the insertion space 160, and the right flange 151 is connected to the front of the reinforcement 130. The back pillar 1 is assembled by joining the flange 133 and 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 the back pillar 1 is assembled, the right member 6 and the left member 7 of the connecting portion 2 are previously connected to the hinge mounting portion 121b of the back pillar outer 120 and the reinforcement 130, respectively. If the two members 120 and 130 are joined together, the welding location in the insertion space 160 is only the joining portion 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 assembly work can be easily performed even if the reinforcement is enhanced in order to support the back door 104.
[0030]
【The invention's effect】
As described above, in the back pillar according to claim 1 of the present invention, when the reinforcement and the back pillar outer, in which the right side member and the left side member of the connecting portion are joined in advance, are joined together, the two members are formed. Since the welding location of the welding gun inserted into the inserted insertion space is only the joining portion between the right member and the left member, joining work is facilitated. Therefore, the assembly 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 on the right side of a rear part 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 the right side of the rear portion of the vehicle provided with a back pillar according to an embodiment of the present invention.
FIG. 5 is an upper cross-sectional view of the right side of the rear portion of the vehicle provided with a conventional back pillar.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Back pillar 2 Connection part 6 Right side member 7 Left side member 10 Car body 101 Body side outer panel 102 Rear surface 103 Opening part 104 Back door 120 Back pillar outer 121 Intermediate part 121a Car outer side part 121b Hinge attachment 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)

A back that has one end joined to the rear end of the body side outer panel and extends in the vehicle width direction, and an intermediate portion projects forward, and the back door opening is opened and closed via a hinge at the vehicle outer side in the intermediate portion. A back pillar outer that supports the door so as to be pivotable 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 side joint is formed, and a reinforcement that forms an insertion space in which a front is opened between which the front gun joint is inserted and the back pillar outer is inserted, and
In this insertion space, the left and right sides are joined to the intermediate portion of the reinforcement and a hinge mounting portion to which one end of the hinge is attached to the vehicle outer side of the back pillar outer, and the back pillar outer and the reinforcement are attached. And a connecting part for connecting
The connecting portion closes the insertion space in a state where the back pillar outer and the reinforcement are connected, one end side is joined to the front end side of the reinforcement, and the other end side is joined to the other end side of the back pillar outer. With back pillar inner,
The said connection part was comprised from the right side member and left side member which were divided | segmented into right and left so that joining was possible, The back pillar characterized by the above-mentioned.

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