JP2007186207A - Automobile roof structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automobile roof structure capable of reinforcing a roof panel by a simple structure in which small components are added and set while an existing structure is used. <P>SOLUTION: In the automobile roof structure in which a flange terminal part of the roof panel 1 is joined to a roof side rail part, a side approximately intermediate part of a sunroof housing retainer 26 arranged so as to surround a roof opening part 25 of the roof panel 1 is supported by a first sunroof bracket 30 joined to the roof side rail part, and a side rear end part of the sunroof housing retainer 26 is supported by a second sunroof bracket 31 joined to the roof side rail part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

    The present invention relates to a roof structure of an automobile, and more particularly to a roof structure effective for reinforcing a roof panel.

  In the case of a general standard automobile, a plurality of roof rein hoses for increasing surface rigidity are arranged on the inner surface of the roof panel. The roof rein hose consists of a strip with a bead that extends in the left-right (vehicle width) direction along the inner surface of the panel. In a state of being sandwiched, it is joined to the roof side rail portion in an overlapping structure.

  By the way, the roof of an automobile may be equipped with a roof rack used for loading luggage, or a sunroof may be set for the purpose of ventilation and lighting. The roof rack is normally attached to the roof side rail portion via a plurality of roof rack brackets. In addition, when setting the sunroof, the roof rein hose corresponding to the sunroof opening is abolished, and instead, the sunroof housing retainer is disposed so as to surround the sunroof opening, and the sunroof housing retainer is interposed via the sunroof bracket. It was connected to the roof side rail part.

  However, in the case of the conventional roof structure as described above, the rigidity of the roof panel may be insufficient when a roof rack is mounted on the roof or a sunroof is set. For example, when a roof rack is mounted, the flange portion of the roof panel may buckle due to the downward load input to the roof rack mounting portion, and when the sunroof is set, a downward load is applied to the roof panel. There is a possibility of bending.

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

  In order to solve the above-described 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 terminal portion of a roof panel is coupled to a roof side rail portion, a roof rein hose extending in a strip shape in the vehicle width direction along the inner surface of the roof panel. The roof side rail portion is coupled to the roof side rail portion together with the flange end portion of the roof panel, and the roof rein hose is connected to the inner surface near the flange of the roof panel to be input to the flange downward. A roof panel reinforcing bracket for receiving a load is provided.

  According to the invention of claim 1 configured as described above, when the roof rack mounting portion is set in the vicinity of the roof rein hose provided with the roof panel reinforcing bracket, the downward load input to the roof rack mounting portion is the roof. It is supported by the panel reinforcing bracket, and the reinforcement against the 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 side of a sunroof housing retainer disposed so as to surround a roof opening of the roof panel. The intermediate portion is supported by the first sunroof bracket coupled to the roof side rail portion, and the side rear end portion of the sunroof housing retainer is supported by the second sunroof bracket coupled to the roof side rail portion. It is the structure which supported.

  According to the invention of claim 2 configured as described above, the first and second sunroof brackets jointly oppose the downward load applied to the roof panel when the sunroof is set, and the roof panel is bent. Reinforcement against deformation 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 of the roof panel near the flange. And In 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. A reinforcement against the buckling of the flange is achieved.

  According to a fourth aspect of the present invention, there is provided a roof structure for an automobile according to the second or third aspect, wherein the second sunroof bracket connecting portion structure to the roof side rail portion is used for a normal vehicle without a sunroof. In order to sandwich and connect the end portions of the reinhose, it is configured to be inserted into a mounting groove formed in a flange end portion of the roof panel and connected. In such a configuration, the mounting groove is closed by the second sunroof bracket. For this reason, the application mode of the sealer when applying the waterproof sealer to the flange end mating surfaces of the roof panel and the roof side panel is optimized, and the reliability of the seal for preventing water leakage is obtained. This makes it possible to use a panel provided with a sunroof opening in a roof panel for a normal vehicle for the sunroof specification. Therefore, the roof panel can be shared and the cost can be reduced.

  As described in detail above, according to the present invention, the existing structure is utilized and a simple structure is obtained by additionally setting small parts such as a roof panel reinforcing bracket and a second sunroof bracket. However, the roof panel can be reinforced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. This embodiment is a case where a roof rack is mounted on a normal vehicle without a sunroof, and FIG. 1 is a plan view of the roof, and the right front portion of the entire roof is shown. 2 is a cross-sectional view taken along line AA in FIG. 1 (cross-sectional view taken along a line B in FIG. 4), FIG. 3 is a cross-sectional view taken along line CC in FIG. It is. In addition, arrow FR in a figure shows the vehicle front.

  As shown in FIG. 1 and FIG. 3, a flange 1 a having a substantially L-shaped cross section is formed on both the left and right side portions of the roof panel 1, and a cross section of the end portion 1 b of the flange 1 a is formed on the roof side panel 2. In a state of being overlapped with the end portion 2b of the L-shaped flange 2a, it is joined to the flange 3a of the roof side rail 3 constituted by the roof side rail inner 4 and 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 two first and second roof rein hoses 6 and 7 on the front side among the roof rein hoses arranged on the roof. Both roof rein hoses 6 and 7 are band plates with beads extending in the left and right (vehicle width) direction along the inner surface of the panel, and are attached to the roof panel 1 by a structural adhesive 8 as shown in FIG. In addition to being coupled, both end portions thereof are inclined downward and inserted between the flange terminal portion 1b of the roof panel 1 and the flange terminal portion 2b of the roof side panel 2 to be sandwiched and coupled.

  In order to obtain such a sandwiched connection, the rein hose mounting portion of the flange terminal portion 1b of the roof panel 1 is bulged above the general portion shown in FIG. A mounting groove 9 for inserting the reinhose corresponding to the thickness is formed.

  The connecting structure of the side portion of the roof panel 1 and the roof rein hoses 6 and 7 is the same as the conventional structure, and in this embodiment, when the roof rack 12 is mounted on the roof having such a connecting structure, The purpose is to reinforce the roof rack mounting portion of the roof panel 1.

  As shown in FIG. 4, the roof rack 12 has a roof at the bottom of the rail in the roof side rail portion (that is, the 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. The front roof rack bracket 13 is attached to the rein hose interposing part, and the front roof rack bracket 13 is attached to the interposing part of the second roof rein hose 7.

  The roof rack bracket 13 is attached by fastening a bolt 14 inserted through an attachment hole penetrating the attachment 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. It is done. In 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 between the boss end surface of the retainer 16 and the flange terminal portion 1 b of the roof panel 1. The packing 18 is interposed. In FIG. 2, reference numeral 19 denotes a waterproof sealer, and reference numeral 20 denotes a blindfolding molding. 1 and 4, 21 indicates a first pillar, 22 indicates a second pillar, 23 in FIG. 4 indicates a third pillar, and 24 indicates 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 buckled from the roof rack bracket 13 through the retainer 16 and the packing 17 to the flange 1a of the roof panel 1. It is input as a force that causes Therefore, in the present embodiment, as shown in FIG. 2, a roof panel reinforcing bracket 10 is additionally set between the roof panel 1 and the second roof rein hose 7 in the vicinity of the flange 1 a 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, one end of which 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 the present embodiment, as described above, the reinforcing bracket 10 is additionally set between the roof panel 1 and the roof rein hose 7 in the vicinity of the mounting portion of the roof rack bracket 13. When the load of the roof rack 12 and the load loaded thereon acts on the roof panel 1 from the roof rack bracket 13 via the retainer 16 and the packing 17, the load is supported by the bracket 10 and is input to the flange 1a of the roof panel 1. Is reduced. That is, the strength of the roof rack mounting portion is increased by the bracket 10, and the flange 1a can be prevented from buckling.

  Next, a second embodiment of the present invention will be described with reference to FIGS. This embodiment is intended to increase the strength of the roof panel 1 when a sunroof is set. FIG. 5 is a plan view of a roof with a sunroof, FIG. 6 is a cross-sectional view taken along the line DD of FIG. 7 is a cross-sectional view taken along line EE of FIG. In addition, arrow FR in a figure shows the vehicle front.

  The roof panel 1 used in the sunroof specification is formed in the same shape as the roof panel 1 described in the first embodiment except for the presence or absence of the sunroof opening 25. Therefore, the coupling structure of the both side portions of the roof panel 1 is the same as that of the first embodiment, and the same reference numerals are given and description thereof is omitted. In the case of the sunroof specification, since the sunroof opening 25 is provided in the roof panel 1, the roofline rein hoses at the part, that is, the first and second roofline hoses 6 and 7 are abolished. A rectangular frame-shaped sunroof housing retainer 26 for mounting a sunroof housing (not shown) is disposed on the inner surface of the roof panel 1 so as to surround the roof panel 1.

  The sunroof housing retainer 26 is spot welded to the opening flange 25a of the sunroof opening 25 as shown in FIG. 7, and the rear side of the sunroof housing retainer 26 is formed wide with a bead for attaching the sunroof housing. As shown in FIG. 6, it is joined to the inner surface of the roof panel 1 by a structural adhesive 27, and a weld bolt 28 for attaching the sunroof housing is provided at the end thereof. For this reason, the weight of the member related to the sunroof is added in such a manner that the roof panel 1 is bent downward.

  Therefore, as shown in FIG. 7, the sun roof housing retainer 26 is generally supported by a roof side rail portion through a sun roof bracket 30 fastened by bolts and nuts 29 on both sides of the sun roof housing retainer 26 as described above. However, 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 be bent in the vicinity thereof.

  Therefore, in this embodiment, as shown in FIG. 6, a second sunroof bracket 31 is additionally set in a horizontal manner between the rear end portions on both sides of the sunroof housing retainer 26 and the roof side rail portion. By doing so, the roof panel 1 is reinforced. The second sunroof bracket 31 is a band plate having one end coupled to the end portion of the sunroof housing retainer 26, and the extending end portion is formed on the flange terminal portion 1 b of the roof panel 1. 2 is inserted into the mounting groove 9 for inserting the roof rein hose, and is sandwiched between the flange end 2b of the roof side panel 2.

  Therefore, a bag shape is formed by the sunroof bracket 31, the sunroof housing retainer 26 and the roof panel 1 at the rear end portions of the both sides of the sunroof housing retainer 26, and the roof panel 1 is reinforced, and the roof panel by the weight of the sunroof 1 bending is prevented.

  In this case, the end portion of the sunroof bracket 31 can be fastened with bolts and nuts 29 as in the first sunroof bracket 30 shown in FIG. 7, but in this case, the mounting groove 9 remains as a gap. In this embodiment, the end portion of the sunroof bracket 31 is inserted into the mounting groove 9 for inserting the second roof rein hose. By adopting, the mounting groove 9 is not left as a gap. As a result, the sealer 19 can be easily applied to at least the rear end portions of the both sides of the sunroof housing retainer 26, and the occurrence of a malfunction such as a sealer breakage can be prevented to ensure an appropriate sealing property.

  Further, in this embodiment, as shown in FIG. 6, the roof rack mounting hole and the weld nut 15 described in the first embodiment are provided so that the user can retrofit a light weight simple carrier. However, the mounting hole is always closed by the Mekura bolt 32 fastened to the weld nut 15, and is blinded by the molding 20. Therefore, it is possible to meet the user's wishes without post-processing the body.

  Next, a third embodiment of the present invention will be described with reference to FIG. This embodiment is intended to reinforce the roof panel 1 when the roof rack 12 is mounted on a sunroof vehicle. 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 upward in the middle of the longitudinal direction of the sunroof bracket 31 in a U shape, and its upper surface is coupled to the inner surface of the roof panel 1 by a structural adhesive 33. . Accordingly, other configurations are the same as those of the second embodiment.

  According to the third embodiment configured as described above, by providing the sunroof bracket 31 with the roof panel reinforcing portion 32, the roof is opposed to the load of the roof rack 12 and the load loaded thereon. It is possible to prevent the flange 1a of the panel 1 from buckling, to prevent the roof panel 1 from being bent due to the weight of the sunroof, and to prevent the sealer from being cut and to ensure an appropriate sealing property. .

  In the first embodiment, the roof panel reinforcing bracket 10 is formed in a substantially Z shape. However, the roof panel reinforcing bracket 10 may be formed in a hat shape in cross section, and the roof panel reinforcing bracket 10 is the second roof rein hose. 7 may be integrally formed. In the second embodiment, the first sunroof bracket 30 is fastened to the roof side rail inner 4 with bolts and nuts 29. However, as in the case of the second sunroof bracket 31, the first roof rein hose is used. You may make it the structure inserted and attached to the attachment groove | channel 9 for insertion. In the third embodiment, the roof panel reinforcing portion 32 is integrally formed with the second sunroof bracket 31, but may be joined after being formed separately.

It is a top view of the roof concerning a 1st embodiment, and the right front part of the whole roof is shown. It is the sectional view on the AA line of FIG. 1 (B section sectional drawing of FIG. 4). It is CC sectional view taken on the line of FIG. It is a schematic side view of the motor vehicle which shows the mounting aspect of a roof rack. It is a top view of the roof which concerns on 2nd Embodiment, and the right front part of the whole roof is shown. It is the DD sectional view taken on the line of FIG. It is the EE sectional view taken on the line of FIG. It is sectional drawing of the roof side which concerns on 3rd 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 First roof rein hose 7 Second 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)

In the roof structure of an automobile in which the flange terminal portion of the roof panel is coupled to the roof side rail portion,
The end portion of the roof rein hose extending in a belt shape in the vehicle width direction along the inner surface of the roof panel is coupled to the roof side rail portion together with the flange terminal portion of the roof panel. An automobile roof structure provided with a roof panel reinforcing bracket for receiving a downward load input to the flange by being coupled to an inner surface of the roof panel near the flange. In the roof structure of an automobile in which the flange terminal portion of the roof panel is coupled to the roof side rail portion,
A substantially intermediate side portion of the sunroof housing retainer disposed so as to surround the roof opening of the roof panel is supported by a first sunroof bracket coupled to the roof side rail portion, and the rear side of the sunroof housing retainer is supported. A roof structure for an automobile in which an end portion is supported by a second sunroof bracket coupled to the roof side rail portion.   3. The roof structure of an automobile according to claim 2, wherein a roof panel reinforcing portion that is coupled to an inner surface of the roof panel near a flange is provided on a part of the second sunroof bracket. The connecting structure of the second sunroof bracket to the roof side rail portion is formed on the flange end portion of the roof panel for sandwiching and connecting the end of the roof rein hose used in the case of a normal vehicle without a sunroof. 4. The roof structure of an automobile according to claim 2, wherein the roof structure is configured to be inserted into a mounting groove.

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