JPH1129067A - Roof structure for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce a roof panel with a simple structure of additionally setting small parts under the efficient use of existing structure. SOLUTION: Roof structure for an automobile is provided with first and second roof reinforcements 7 extended in band shape in a cross direction along the inner surface of a roof panel 1, and both end parts of the roof reinforcements 7 are connected to roof side rail parts along with flange end parts 1b of the roof panel 1. In this case, a roof panel reinforcing bracket 10 is additionally set to the second roof reinforcement 7 at a part corresponding to a fitting part of a roof bracket, so as to reinforce the flange 1a of the roof panel 1. This constitution can prevent buckling of the flange 1a caused by load of a roof rack.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile roof structure, and more particularly to a roof structure effective for reinforcing a roof panel.

[0002]

2. Description of the Related Art In the case of a general standard automobile, a plurality of roof rein hoses are arranged on the inner surface of a roof panel to increase surface rigidity. The roof rein hose consists of a strip with beads extending in the left-right (vehicle width) direction along the inner surface of the panel, with both ends between the spot welding surfaces of the flange end of the roof panel and the flange end of the roof side panel. It is joined to the roof side rail part in an overlapping structure while being sandwiched.

[0003] In some cases, a roof of an automobile is equipped with a roof rack used for loading luggage, or a sunroof is set for ventilation and lighting. The roof rack is usually attached to the roof side rail via a plurality of roof rack brackets. When setting the sunroof, the roof rein hose at the part corresponding to the sunroof opening is eliminated, and the sunroof housing retainer is arranged so as to surround the sunroof opening, and the sunroof housing retainer is connected via the sunroof bracket. To the roof side rail.

[0004]

However, in the case of the conventional roof structure as described above, when a roof rack is mounted on the roof or a sunroof is set, the rigidity of the roof panel may be insufficient. Was. For example, when a roof rack is mounted, a downward load applied to the roof rack mounting portion may cause the flange portion of the roof panel to buckle, and when a sunroof is set, a downward load is applied to the roof panel, thereby causing the roof panel to fall. It may bend.

In view of the above problems, an object of the present invention is to provide a roof structure of an automobile which can reinforce a roof panel with a simple structure by adding small parts while utilizing an existing structure. Is to do.

[0006]

Means for Solving the Problems In order to solve the above problems, the present invention is configured as follows. That is, according to the first aspect of the present invention, in a roof structure of an automobile in which a flange end portion of a roof panel is coupled to a roof side rail portion, a roof rein hose extending in a vehicle width direction along an inner surface of the roof panel. Is connected to the roof side rail portion together with a flange end portion of the roof panel, and the roof rein hose is connected to an inner surface near the flange of the roof panel, thereby receiving the downward direction input to the flange. A roof panel reinforcing bracket for receiving a load is provided.

According to the first aspect of the present invention, when the roof rack mounting portion is set near the roof rein hose having the roof panel reinforcing bracket, the downward input to the roof rack mounting portion is performed. The load is supported by the roof panel reinforcing bracket, and reinforcement against buckling of the flange in the roof panel is achieved.

According to a second aspect of the present invention, in a roof structure of an automobile in which a flange terminal portion of a roof panel is coupled to a roof side rail portion, a sunroof housing retainer is disposed so as to surround a roof opening of the roof panel. A first sunroof bracket connected to the roof side rail portion, and a side rear end of the sunroof housing retainer connected to the roof side rail portion. And a support bracket.

According to the second aspect of the present invention, when the sunroof is set, the first and second sunroof brackets jointly oppose a downward load applied to the roof panel, and Reinforcement against flexural deformation of the panel is achieved.

According to a third aspect of the present invention, in the automobile roof structure according to the second aspect, a roof panel reinforcing portion is provided on a part of the second sunroof bracket to be coupled to an inner surface near a flange of the roof panel. It is characterized by the following. With such a configuration, when the roof rack mounting portion is set near the second sunroof bracket with the roof panel reinforcing portion, the downward load input to the roof rack mounting portion is supported by the roof panel reinforcing portion. Thus, reinforcement against buckling of the flange is achieved.

According to a fourth aspect of the present invention, in the vehicle roof structure according to the second or third aspect, the structure of the connecting portion of the second sunroof bracket to the roof side rail portion is a normal vehicle without a sunroof. It is characterized in that it is configured to be inserted into and attached to a mounting groove formed in a flange terminal portion of a roof panel for sandwiching and connecting an end of a roof rein hose used. With such a configuration, the mounting groove is closed by the second sunroof bracket. For this reason, when the sealer for waterproofing is applied to the flange end face of the roof panel and the roof side panel, the application form of the sealer is optimized, and the reliability of the seal for preventing water leakage is obtained. This means
A panel in which a sunroof opening is provided in a roof panel for a normal vehicle can be used for sunroof specifications.
Therefore, a common roof panel is achieved, leading to a reduction in cost.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. The present embodiment is a case where a roof rack is mounted on a normal vehicle without a sunroof. FIG. 1 is a plan view of the roof, and shows a right front portion of the entire roof. 2 is a cross-sectional view taken along the line AA of FIG. 1 (a cross-sectional view of a portion B in FIG. 4), and FIG.
FIG. 4 is a schematic side view of the automobile showing a mounting mode of the roof rack. The arrow FR in the figure indicates the front of the vehicle.

As shown in FIGS. 1 and 3, a flange 1 a having a substantially L-shaped cross section is formed on both right and left side portions of the roof panel 1, and a terminal portion 1 b of the flange 1 a is formed on the roof side panel 2. The roof side rail inner 4 is overlapped with the end 2b of the flange 2a having a substantially L-shaped cross section.
And a flange 3a of the roof side rail 3 composed of the roof side rail outer 5 by spot welding.

In order to increase the surface rigidity of the roof panel 1,
A plurality of roof rein hoses as strength members are arranged on the indoor surface side of the roof panel 1. FIG. 1 shows the first two of the front rein hoses arranged on the roof.
And second roof rein hoses 6, 7 are shown. Both roof rein hoses 6 and 7 are strips with beads extending in the left-right (vehicle width) direction along the inner surface of the panel.
As shown in FIG.
And both end portions thereof extend obliquely downward and are inserted and sandwiched between the flange end portion 1b of the roof panel 1 and the flange end portion 2b of the roof side panel 2. .

In order to obtain such a sandwich connection,
The rein hose mounting portion in the flange end portion 1b of the roof panel 1 is swelled upward from the general portion shown in FIG. 2 and has a mounting groove 9 for rein hose insertion corresponding to the plate thickness of the roof rein hoses 6 and 7. Is molded.

The connection structure between the side portions of the roof panel 1 and the roof rein hoses 6 and 7 is the same as that of the related art. In the present embodiment, the roof rack 12 is mounted on the roof having such a connection structure. In this case, the purpose is to reinforce the roof panel 1 on the roof rack mounting portion.

As shown in FIG. 4, the roof rack 12 has rails at a roof side rail portion (ie, a connecting portion of the roof panel 1, the roof side panel 2, and the roof side rail 3) via a plurality of roof rack brackets 13. It is attached to the bottom roof rein hose installation part, and the frontmost roof rack bracket 13 is attached to the installation part of the second roof rein hose 7.

The roof rack bracket 13 fastens a bolt 14 inserted through a mounting hole penetrating through a mounting portion of the roof rack bracket 13 in the roof side rail portion to a weld nut 15 welded to the lower surface of the roof side rail inner 4. Attached by At the time of this fastening, a retainer 16 and a packing 17 are interposed between the roof rack bracket 13 and the roof panel 1 and the roof side panel 2, and the retainer 16
A packing 18 is interposed between the end face of the boss portion and the flange end portion 1b of the roof panel 1. In FIG. 2, reference numeral 19 denotes a waterproof sealer, and reference numeral 20 denotes a blindfold molding. 1 and 4, reference numeral 21 denotes a first pillar, reference numeral 22 denotes a second pillar, and in FIG. 4, reference numeral 23 denotes a third pillar, and reference numeral 24 denotes a fourth pillar.

However, according to the roof rack mounting structure as described above, the load of the roof rack 12 and the load loaded thereon is transferred from the roof rack bracket 13 to the flange 1 of the roof panel 1 via the retainer 16 and the packing 17.
a is input as a force that buckles this. Therefore, in the present embodiment, as shown in FIG. 2, a bracket 10 for reinforcing the roof panel is additionally provided between the roof panel 1 and the second roof rein hose 7 near the flange 1a of the roof panel 1. By doing so, the roof rack mounting portion is reinforced. The bracket 10 is formed in a substantially Z shape, and one end thereof is connected to the roof rein hose 7 by welding, and the other end is connected to the inner surface of the roof panel 1 by a structural adhesive 11.

In this embodiment, the reinforcing bracket 10 is additionally provided between the roof panel 1 and the roof rein hose 7 in the vicinity of the mounting portion of the roof rack bracket 13 as described above. When the load of the roof rack 12 and the load loaded thereon acts on the roof panel 1 via the retainer 16 and the packing 17 from the roof rack bracket 13 with the mounting, the load is supported by the bracket 10 and the flange 1a of the roof panel 1 The input to is reduced. That is, the strength of the roof rack attachment portion is increased by the bracket 10, and buckling of the flange 1a can be prevented.

Next, a second embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. This embodiment aims to increase the strength of the roof panel 1 when a sunroof is set, and FIG. 5 is a plan view of a roof with a sunroof, FIG. 6 is a cross-sectional view taken along line DD of FIG. FIG. 7 is a sectional view taken along line EE of FIG. The arrow FR in the figure indicates the front of the vehicle.

The roof panel 1 used in the sunroof specification has the following features except for the presence or absence of the sunroof opening 25.
It is assumed that it is formed in the same shape as the roof panel 1 described in the first embodiment. Therefore, the roof panel 1
Are the same as those in the first embodiment, and the same reference numerals are given and the description is omitted. In the case of the sunroof specification, the roof panel 1 has a sunroof opening 2
Due to the provision of 5, the roof roof hoses, that is, the first and second roof roof hoses 6, 7 are eliminated, and a sun roof housing (not shown) is attached so as to surround the sun roof opening 25 instead. Frame-shaped sunroof housing retainer 26 is disposed on the inner surface of roof panel 1.

As shown in FIG. 7, the sunroof housing retainer 26 is entirely spot-welded to the opening flange 25a of the sunroof opening 25 as shown in FIG.
The rear side, which is wide and has a bead for mounting the sunroof housing, is connected to the inner surface of the roof panel 1 by a structural adhesive 27 as shown in FIG.
8 is provided. For this reason, the weight of the members related to the sunroof is added to the roof panel 1 in such a manner that the roof panel 1 is bent downward.

For this reason, as shown in FIG. 7, a substantially middle portion of both sides of the sunroof housing retainer 26 as described above is connected to a roof side rail portion via a sunroof bracket 30 fastened by bolts and nuts 29. Yes, but this is not enough. In particular, the weight on the rear side is the largest, and there is a high possibility that the roof panel 1 will bend near that.

Therefore, in this embodiment, as shown in FIG. 6, a second sunroof bracket 31 is provided between the rear end portions of both sides of the sunroof housing retainer 26 and the roof side rail portion so as to have a horizontal shape. In addition, the roof panel 1 is reinforced by additionally setting. The second sunroof bracket 31 is a band plate having one end connected to the end of the sunroof housing retainer 26 and extending therefrom, and the extending end thereof is connected to the flange end portion 1 of the roof panel 1.
b, and is inserted into a second roof rein hose insertion groove 9 for insertion, and is sandwiched between the flange end portion 2b of the roof side panel 2 and the roof side panel 2.

For this reason, the sunroof bracket 3 is provided at the rear end on both sides of the sunroof housing retainer 26.
1, the sunroof housing retainer 26 and the roof panel 1 form a bag shape, the roof panel 1 is reinforced, and bending of the roof panel 1 due to the weight of the sunroof is prevented.

In this case, the end of the sunroof bracket 31 can be fastened with bolts and nuts 29 like the first sunroof bracket 30 shown in FIG. Remains as sealer 1
In this embodiment, a configuration is employed in which the end of the sunroof bracket 31 is inserted into the second roof rein hose insertion mounting groove 9 because it becomes difficult to apply 9 and the sealer may be cut. This prevents the mounting groove 9 from being left as a gap. As a result, the sealer 19 can be easily applied to at least the rear end portions of both sides of the sunroof housing retainer 26, and a problem such as breakage of the sealer can be prevented, so that appropriate sealing performance can be ensured.

Further, in this embodiment, as shown in FIG. 6, the mounting hole and the weld nut 15 of the roof rack described in the first embodiment can be attached so that the user can attach a simple carrier for light weight later. Although the mounting holes are provided, the mounting bolts 3 are always tightened to the weld nuts 15.
2 and is blindfolded by the mall 20. Therefore, it is possible to respond to the user's request without performing post-processing on the body.

Next, a third embodiment of the present invention will be described with reference to FIG. In this embodiment, a roof panel 1 in a case where a roof rack 12 is mounted on a sunroof vehicle is described.
The purpose is to reinforce. This third embodiment is a combination of the first embodiment and the second embodiment. That is, the roof panel reinforcing portion 32 corresponding to the roof panel reinforcing bracket 10 described in the first embodiment is integrally provided on the second sunroof bracket 31 described in the second embodiment. The roof panel reinforcing portion 32 is formed by bulging the sunroof bracket 31 approximately in the middle in the longitudinal direction upward in a U-shape, and the upper surface thereof is joined to the inner surface of the roof panel 1 by the structural adhesive 33. . Therefore, the other configuration is the same as that of the second embodiment.

According to the third embodiment configured as described above, the provision of the sunroof bracket 31 with the roof panel reinforcing portion 32 allows the roof rack 1
2 and the flange 1a of the roof panel 1 can be prevented from buckling against the load of the luggage loaded thereon, and the deflection of the roof panel 1 due to the weight of the sunroof can be prevented. It is possible to secure proper sealing performance by preventing the prevention.

Although the roof panel reinforcing bracket 10 is formed in a substantially Z shape in the first embodiment, the roof panel reinforcing bracket 10 may be formed in a hat-shaped cross section. It may be formed integrally with the roof rein hose 7. In the second embodiment, the first sunroof bracket 30 is fastened to the roof side rail inner 4 with bolts and nuts 29, but the first roof rein hose is similar to the case of the second sunroof bracket 31. It may be configured to be inserted into the mounting groove 9 for insertion and pinched. In the third embodiment, the roof panel reinforcement 3
Although 2 is integrally formed with the second sunroof bracket 31, it may be formed separately and then connected.

[0032]

As described in detail above, according to the present invention,
By utilizing the existing structure and additionally setting small parts such as the roof panel reinforcing bracket and the second sunroof bracket, the roof panel can be reinforced while having a simple structure.

[Brief description of the drawings]

FIG. 1 is a plan view of a roof according to a first embodiment, showing a right front portion of the entire roof.

2 is a sectional view taken along line AA of FIG. 1 (a sectional view of a portion B in FIG. 4).

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is a schematic side view of an automobile showing a mounting mode of a roof rack.

FIG. 5 is a plan view of a roof according to a second embodiment, showing a right front portion of the entire roof.

FIG. 6 is a sectional view taken along line DD of FIG. 5;

FIG. 7 is a sectional view taken along line EE of FIG. 5;

FIG. 8 is a sectional view of a roof side according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Roof panel 1a ... Flange 1b ... Flange terminal part 2 ... Roof side panel 2a ... Flange 2b ... Flange terminal part 3 ... Roof side rail 6 ... 1st roof rein hose 7 ... 2nd roof rein hose 10 ... Roof panel Reinforcement bracket 12 Roof rack 13 Roof rack bracket 25 Sunroof opening 26 Sunroof housing retainer 30 First sunroof bracket 31 Second sunroof bracket 32 Roof panel reinforcement

Claims (4)

[Claims] 1. A roof structure for an automobile in which a flange end portion of a roof panel is coupled to a roof side rail portion, wherein an end of a roof rein hose extending in a vehicle width direction along an inner surface of the roof panel is provided. The roof is connected to the roof side rail portion together with a flange end portion of the roof panel, and the roof rein hose is connected to an inner surface near the flange of the roof panel and receives a downward load input to the flange. The roof structure of a car with a panel reinforcement bracket. 2. A roof structure of an automobile in which a flange end portion of a roof panel is coupled to a roof side rail portion, wherein a substantially middle portion of a side of a sunroof housing retainer arranged to surround a roof opening of the roof panel is provided. A first sunroof bracket coupled to the roof side rail portion, and a side rear end of the sunroof housing retainer supported by a second sunroof bracket coupled to the roof side rail portion; Car roof structure. 3. The roof structure of an automobile according to claim 2, wherein a part of said second sunroof bracket is provided with a roof panel reinforcing portion which is connected to an inner surface near a flange of said roof panel. 4. A roof panel flange for connecting the second sunroof bracket to the roof side rail portion by sandwiching an end of a roof rein hose used in a normal vehicle without a sunroof. 4. The roof structure of an automobile according to claim 2, wherein the vehicle roof structure is configured to be inserted into a mounting groove formed in a terminal portion and coupled thereto.