JPH06286656A - Car body upper side part structure for automobile - Google Patents

Abstract

PURPOSE:To obtain the car body upper side part structure of an automobile which intensifies rigidity without adding other parts and increasing the car body weight. CONSTITUTION:The car body upper side part structure of an automobile is constituted so that a roof reinforcement 5 which is spot-welded on a drip channel 5 on which a car outside edge part 3a is fixed on the upper part outside surface of a center pillar 1 is arranged in the lower part of a roof panel 2 corresponding to the center pillar 1. The part 3b close to the edge part of the roof reinforcement 5 corresponding to the upper part flange 1a of the center pillar 1 is brought into contact with the upper part flange 1a, and the part 3b close to the edge part and the upper part flange 1a are joined with the demountable fixing means 9 and 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure, and more particularly to a vehicle body upper side structure for enhancing vehicle body rigidity.

[0002]

2. Description of the Related Art As is well known, in an automobile body,
In some cases, a roof reinforcement (roof bow) in the vehicle width direction is installed under the roof panel to strengthen the rigidity of the upper part of the vehicle body. 3 and 4 show a conventional automobile body in which the rigidity of the upper portion of the vehicle body is strengthened, and a roof reinforcement 3A having a hat-shaped cross section extending in the vehicle width direction is provided below the roof panel 2A corresponding to the center pillar 1A. Is installed.

The intermediate portion in the length direction of the roof reinforcement 3A is fixed in advance to the lower surface of the roof panel 2A by a sealer 4A, and the vehicle outer side end portion 3a thereof has a center pillar 1A and a roof rail when the vehicle body is assembled. It is spot-welded together with the flange 2a of the roof panel 2A on the upper surface of the drip channel 5A which is pre-spot-welded to the upper outer surface (not shown). In addition, reference numeral "6" in FIG.
A "is the anchor reinforcement for reinforcing the attachment of the seat belt fixed to the center pillar inner panel 1 _I.

[0004]

Therefore, in such a conventional automobile body, the roof panel 2A and the roof reinforcement 3 constituting the upper body are provided.
Since it is indirectly connected to the center pillar 1A which is a side body and the roof rail via the easily deformable drip channel 5A, the rigidity of the vehicle body becomes insufficient. To improve this, drip channel 5
Although it has been attempted to increase the plate thickness of A or add a reinforcing plate, there is a disadvantage that the weight increases and the cost increases. The object of the present invention is to add another component in view of the problems of the conventional vehicle body upper side structure as described above,
An object of the present invention is to obtain a vehicle body upper side structure capable of enhancing the rigidity of the joint portion of the roof reinforcement joined to the center pillar portion without increasing the vehicle body weight.

[0005]

To achieve this object, the present invention provides: 1) A roof reinforcement extending in the vehicle width direction in which a vehicle outer end portion is spot-welded to a drip channel fixed to an upper outer surface of a center pillar. In the vehicle body upper side structure arranged at the bottom of the roof panel corresponding to the center pillar, a portion of the roof reinforcement corresponding to the upper flange of the center pillar is brought into contact with the upper flange, The structure of the upper part of the vehicle body where the part near the same end and the upper flange are connected by a detachable fixing means 2) Spot welding the outer end of the car to the drip channel fixed to the upper outer surface of the center pillar A roof reinforcement extending in the vehicle width direction is placed under the roof panel that corresponds to the center pillar. -In the structure of the upper part of the vehicle body where the anchor reinforcement that reinforces the seatbelt attachment part is fixed to the inner panel, the part near the end of the roof reinforcement corresponding to the upper flange of the center pillar is applied to the upper flange. Of the automobile in which the upper end portion of the anchor reinforcement is extended to a position between the portion near the end portion and the upper flange, and the portion near the end portion, the upper flange, and the upper end portion are joined by a detachable fixing means. We propose a vehicle body upper part structure.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the embodiments of the present invention will be described below with reference to FIGS. 1 and 2, a roof reinforcement 3 having a hat-shaped cross section extending in the vehicle width direction is provided below a roof panel 2 corresponding to the center pillar 1.
Is installed. An intermediate portion in the length direction of the roof reinforcement 3 is fixed in advance to the lower surface of the roof panel 2 by a sealer 4, and its vehicle outer end 3a has an upper portion of the center pillar 1 and the roof rail 7 during assembly of the vehicle body. As in the conventional case, spot welding is performed together with the flange 2a of the roof panel 2 on the upper surface of the drip channel 5 that is spot-welded on the outer surface in advance.

As shown in FIG. 1, the upper flange 1a of the center pillar 1 is provided with three mounting holes 8 aligned in the front-rear direction of the vehicle body, and the roof reinforcement corresponding to the upper flange 1a is formed. As shown in FIG. 1, a portion 3b near the end of 3 is deformed to be in contact with the upper flange 1a. In the portion 3b near the end of the roof reinforcement 3, three weld bolts 9 whose front ends can be inserted into the corresponding mounting holes 8 when the side body and the upper body are assembled are fixed in advance.

Therefore, in the process of assembling the vehicle body,
The tip of the weld bolt 9 of the upper body is inserted into the mounting hole 8 of the side body preliminarily preassembled, and the tightening nut 10 is tightened from the lower side of the upper flange 1a to the tip of the weld bolt 9 to form the side body and the upper body. A strong bond can be directly formed between the two.

Further, in the illustrated embodiment, the anchor reinforcement 6 for reinforcing the seat belt mounting portion, not shown, is fixed to the inner surface of the center pillar inner panel 1 _I , but the upper end of the anchor reinforcement 6 is not fixed. The portion 6a is extended upward so that it can be interposed between the upper flange 1a and the portion 3b near the end of the roof reinforcement 3, and the weld bolt 9 and the tightening nut 10 are provided.
It is directly connected to the roof reinforcement 3 by tightening with.

Since the vehicle body upper side structure according to the illustrated embodiment has the above-described structure, the side body and the upper body may be preassembled and then assembled. That is, in the pre-assembly process of the side body, the side body can be completed by spot welding the drip channel 5 to the upper outer surface of the center pillar 1 and the roof rail 7. Further, the upper body fixes the weld bolt 9 to the portion 3b near the end of the roof reinforcement 3 and fixes the roof reinforcement 3 to the lower portion of the roof panel 2 by using a sealer 4 or the like. This can be completed by temporarily fixing the flange 2a of the vehicle and the vehicle exterior end 3a of the roof reinforcement 3.

After that, in order to assemble the side body and the upper body, the upper body is placed on the side body while inserting the weld bolt 9 into the mounting hole 8 so as to straddle the left and right side bodies of the vehicle body. After tightening the tightening nut 10 on the tip portion of the roof 9, the flange 2a of the roof panel 2 and the drip channel 5 may be spot-welded. In this case, by tightening the tightening nut 10 on the tip of the weld bolt 9, the upper end 6a of the anchor reinforcement 6 fixed to the center pillar inner panel is directly coupled to the roof reinforcement 3. In other words, with the structure of the illustrated embodiment, it is possible to assemble the vehicle body in the same process as the conventional one.

In the completed vehicle body, the roof reinforcement 3 and the center pillar 1 which reinforce the upper portion of the vehicle body
Since and are directly connected at the position of the upper flange 1a,
Rigidity of the car body is strengthened and roof reinforcement 3
Alternatively, the external force applied to the center pillar 1 is applied to the center pillar 1
Alternatively, since it can be directly dispersed in the roof reinforcement 3, the strength of the vehicle body can be improved. Further, in the vehicle body upper side structure of the illustrated embodiment, since the roof reinforcement 3 can be directly coupled to the center pillar 1 at the portion from the end of the hat-shaped cross section having a large bending rigidity, the tension of the roof panel 2 can be increased. The rigidity is increased, the divided vibration of the roof panel 2 is suppressed, and the noise in the vehicle compartment can be reduced.

Further, in the structure of the illustrated embodiment, the upper end 6A of the anchor reinforcement 6 is extended to the position of the upper flange 1a of the center pillar 1 and the weld bolt 9 and the tightening nut 10 are tightened to the upper flange 1a. Since they are integrated, not only the center pillar inner panel 1 _I but also the force applied to the seat belt can be transmitted to the roof reinforcement 3 having high rigidity, so that the strength of the seat belt attachment portion can be increased.

In the above embodiment, an example of the removable fixing means composed of the weld bolt 9 and the tightening nut 10 is illustrated, but the present invention is not limited to this example, for example, the roof reinforcement 3 It is obvious that the manufacturing cost can be further reduced if the pierce nut is fixed in advance or the screw hole is formed in the roof reinforcement 3 in advance and the fixing bolt inserted into the mounting hole 8 is used. Further, in the above-described embodiment, the center pillar 1 and the roof rail 7 are integrally press-molded, but the center pillar 1 and the roof rail 7 are separately press-molded and spot-welded. But it's okay.

[0015]

As is apparent from the above description, according to the present invention, the portion near the end of the roof reinforcement is directly fixed to the upper flange of the center pillar by using the removable fixing means. Therefore, the rigidity of the vehicle body can be enhanced, and the external force acting on the center pillar can be dispersed in the roof reinforcement, so that the strength of the vehicle body can be improved.
Further, according to the present invention, since the roof reinforcement is directly coupled to the center pillar at the portion near the end portion having high rigidity, the tension rigidity of the roof panel can be improved and the division vibration of the roof panel can be suppressed. The noise inside the vehicle can be reduced. Furthermore, by extending the upper end of the anchor reinforcement between the upper flange of the center pillar and the part of the roof reinforcement near the end, and connecting them with a fixing means, the strength of the seat belt attachment part is improved. There is also an effect to do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a vehicle body upper side structure according to the present invention.

FIG. 2 is a sectional view of a vehicle body upper structure according to the present invention, which corresponds to FIG.

FIG. 3 is a perspective view of a conventional automobile viewed from the rear.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 1 Center Pillar 1a Upper Flange 2 Roof Panel 2a Flange 3 Roof Reinforcement 3a Car Outer End 3b Part Near End 5 Drip Channel 6 Anchor Reinforce 6a Upper End 7 Roof Rail 8 Mounting Hole 9 Weld Bolt 10 Fastening Nut

Claims (2)

[Claims] 1. A vehicle having a roof reinforcement extending in the vehicle width direction, which is spot-welded to a drip channel whose outer end is fixed to an upper outer surface of a center pillar, is disposed below a roof panel corresponding to the center pillar. In the vehicle body upper side structure, a portion near the end of the roof reinforcement corresponding to the upper flange of the center pillar can be brought into contact with the upper flange, and the portion between the upper flange and the end can be removed. Upper body structure of an automobile characterized by being connected by various fixing means. 2. A roof reinforcement extending in the vehicle width direction, which is spot welded to a drip channel whose outer end is fixed to an upper outer surface of a center pillar, is arranged below a roof panel corresponding to the center pillar. In an upper vehicle body structure for fixing an anchor reinforcement that reinforces a seat belt mounting portion to a pillar inner panel, a portion near an end portion of the roof reinforcement corresponding to an upper flange of the center pillar is attached to the upper flange. Abutting to, and extending the upper end of the anchor reinforcement between the portion near the end and the upper flange, the portion near the end, the upper flange,
An upper body structure of an automobile characterized in that an upper end portion is joined by a detachable fixing means.