Vehicular roof structure

The integrated retainer design for vehicle roof structures addresses the issue of low rigidity by enhancing the stability and preventing deformation in areas with interior lights and rearview mirrors, using a unified fixing system with additional structural support.

JP2025167753APending Publication Date: 2025-11-07SUZUKI MOTOR CORP
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Patent Information

Application Number
JP2024072631
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

The existing vehicle roof structures with openings for interior lights and rearview mirrors suffer from low rigidity, leading to potential deformation and instability in these areas.

Method used

A vehicle roof structure design where the retainers for the interior light and rearview mirror covers are integrated, with additional features like a roof cross member and protruding pieces to enhance rigidity, ensuring the retainers are fixed as a single unit to improve stability.

Benefits of technology

The integrated retainer design enhances the rigidity of the roof lining areas with attached fixtures, preventing deformation and improving the stability of the interior light and rearview mirror installations.

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Abstract

To provide a vehicular roof structure which can improve rigidity of a roof lining around a room light and a room mirror.SOLUTION: A vehicular roof structure 100 includes a roof lining 104 which forms a cabin side of a vehicular roof and has a first opening and second opening. The vehicular roof structure 100 also includes: a first retainer 130 which is positioned on an upper side of the roof lining 104 and fixes a room light 112 through the first opening; and a second retainer 150 which is positioned on the upper side of the roof lining 104 and fixes a cover 116 of a room mirror through the second opening in which the first retainer 130 is integrated with the second retainer 150.SELECTED DRAWING: Figure 5
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Description

[Technical Field]

[0001] The present invention relates to a roof structure for a vehicle. [Background technology]

[0002] For example, in Patent Document 1, two openings are formed in the front part of an interior member (roof lining) of a vehicle roof, and an interior light and a room mirror are attached to the interior member through these openings, respectively. A privacy cover is provided on the interior member so as to overlap one of the openings, and this privacy cover is formed with an interior light attachment hole into which the interior light is fixed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-101724 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, the roof interior member described in Patent Document 1 has openings for installing the interior lights and rearview mirror, and the privacy cover attached to the openings also has holes for installing the interior lights. Therefore, even though the openings in the interior member are the areas where the interior lights and rearview mirrors are installed, they tend to have low rigidity, and deformation may occur in these areas, making it impossible to stably install the interior lights and rearview mirrors.

[0005] In view of these problems, the present invention aims to provide a vehicle roof structure that improves the rigidity of the portion of the roof lining where the interior light and rearview mirror covers are attached, thereby suppressing defects such as deformation of the same portion. [Means for solving the problem]

[0006] In order to solve the above problem, a typical configuration of the present invention is a vehicle roof structure having a roof lining that forms the passenger compartment side of the vehicle roof and has a predetermined first opening and second opening, and the vehicle roof structure further has a first retainer located on the upper side of the roof lining and fixes an interior light through the first opening, and a second retainer located on the upper side of the roof lining and fixes a cover for a rearview mirror through the second opening, and is characterized in that the first retainer and the second retainer are integrated. [Effects of the Invention]

[0007] According to the present invention, the rigidity of the portion of the roof lining to which the interior light and rearview mirror cover are attached is improved, and defects such as deformation of the portion are suppressed. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a vehicle to which a vehicle roof structure according to an embodiment of the present invention is applied, as viewed obliquely from above; [Figure 2] 2 is a perspective view of the vehicle roof structure of FIG. 1 as seen obliquely from below. FIG. [Figure 3] 2 is a perspective view of a roof lining of the vehicle roof structure of FIG. 1, seen obliquely from above. [Figure 4] 4 is a partially enlarged plan view of the roof lining of FIG. 3 to which a coupling retainer is attached. [Figure 5] 2 is a perspective view of a joining retainer and its surroundings that the vehicle roof structure of FIG. 1 has, seen obliquely from above. [Figure 6] FIG. 6 is a plan view of the coupling retainer of FIG. 5. [Figure 7] 6 is a perspective view of the coupling retainer of FIG. 5 as seen from the rear side. [Figure 8] 5 is a partially enlarged plan view showing a state in which a roof cross member is attached to the vehicle roof structure of FIG. 4. FIG. [Figure 9] 2 is a cross-sectional view of the vehicle roof structure of FIG. 1 as viewed from the vehicle width direction. DETAILED DESCRIPTION OF THE INVENTION

[0009] One embodiment of the present invention is a vehicle roof structure comprising a roof lining that forms the passenger compartment side of the vehicle roof and has a predetermined first opening and second opening, and the vehicle roof structure further comprises a first retainer located above the roof lining and fixing an interior light through the first opening, and a second retainer located above the roof lining and fixing a cover for a rearview mirror through the second opening, wherein the first retainer and the second retainer are integrated.

[0010] According to the present invention, the first retainer and the second retainer are fixed to the roof lining as a single unit, which improves their rigidity compared to when they are fixed to the roof lining separately. This improves the rigidity of the roof lining portion where the interior light and rearview mirror cover are attached, thereby suppressing defects such as deformation of the portion.

[0011] The second retainer may have a smaller dimension in the vehicle width direction than the first retainer, and the second retainer may protrude forward from the first retainer.

[0012] Since the second retainer has a smaller dimension in the vehicle width direction than the first retainer, the rigidity of the part where the second retainer and the first retainer are integrated can be improved compared to when the widths of the second retainer and the first retainer in the vehicle width direction are equal.

[0013] The vehicle roof structure may further include a roof cross member extending across the vehicle width above the first retainer and the second retainer, and two fixing portions protruding upward from the first retainer or the second retainer between the first opening and the second opening and fixed to the roof cross member.

[0014] In this way, the two fixing portions protruding upward from the first retainer or the second retainer are fixed to the roof cross member, further improving the rigidity of the first retainer and the second retainer, particularly in the area between the first opening and the second opening. This further improves the rigidity of the portion of the roof lining where the interior light and rearview mirror cover are attached, further suppressing defects such as deformation of this portion.

[0015] The vehicle roof structure may further include a connecting portion that connects the two fixed portions, and the connecting portion may have two upright walls, front and rear, and an upper wall that connects the upper ends of the two upright walls.

[0016] The vertical wall and upper wall increase the rigidity of the first retainer, improving the accuracy of positioning the first and second retainers relative to the roof lining. This makes it possible to more effectively prevent deformation of the vehicle roof structure when a load is applied to the rearview mirror, interior light, first and second retainers.

[0017] The vehicle roof structure may further include a convex piece protruding from the first retainer toward the rear of the vehicle, a roof panel positioned above the first retainer and the second retainer and forming the exterior side of the vehicle roof, and a pad fixed to the convex piece to ensure clearance between the roof lining and the roof panel.

[0018] According to the above configuration, the pad fixed to the convex piece is sandwiched between the roof panel and the roof lining, ensuring clearance between them. Therefore, even if an occupant applies an upward load to the roof lining by operating an operating part provided on an interior light, the pad limits the upward movement of the first retainer. This more effectively prevents the first retainer and second retainer from peeling off the roof lining. In addition, the presence of the convex piece clarifies the fixed position of the pad, improving the accuracy of the pad installation position and workability during installation. Furthermore, fixing the pad to the convex piece also improves the rigidity of the vehicle roof structure.

[0019] The protruding piece may have a smaller dimension in the vehicle width direction than the first retainer.

[0020] According to this configuration, the rigidity of the boundary portion where the protruding piece and the first retainer are integrated can be improved compared to a configuration in which the dimensions of the protruding piece and the first retainer in the vehicle width direction are equal. [Example]

[0021] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Dimensions, materials, and other specific values ​​shown in these embodiments are merely examples for facilitating understanding of the invention and, unless otherwise specified, do not limit the present invention. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0022] Fig. 1 is a perspective view of a vehicle to which a vehicle roof structure 100 according to an embodiment of the present invention is applied, as viewed obliquely from above. Fig. 2 is a perspective view of the vehicle roof structure 100 of Fig. 1, as viewed obliquely from below. In Fig. 1 and all other drawings, the front-to-rear direction of the vehicle is indicated by arrows F (Forward) and B (Backward), the left and right in the vehicle width direction are indicated by arrows L (Leftward) and R (Rightward), and the up-down direction is indicated by arrows U (Upward) and D (Downward).

[0023] 1, the vehicle roof structure 100 includes a roof panel 102 that forms the exterior side of the vehicle roof. A roof lining 104, which will be described later, is disposed below the roof panel 102.

[0024] Fig. 2 is a perspective view of the vehicle roof structure 100 of Fig. 1, seen obliquely from below. As shown in Fig. 2, the vehicle roof structure 100 includes a roof lining 104 that forms the passenger compartment side of the vehicle roof. An interior light 112 and a cover 116 for a rearview mirror 114 are fixed to the roof lining 104.

[0025] Fig. 3 is a perspective view of the roof lining 104 included in the vehicle roof structure 100 of Fig. 1, viewed obliquely from above. As shown in Fig. 3, the roof lining 104 has a predetermined first opening 104a and a second opening 104b on the front side of the vehicle. The first opening 104a is formed larger than the second opening 104b. The first opening 104a and the second opening 104b are separated by a partition wall 104c.

[0026] Fig. 4 is a partially enlarged plan view of the joining retainer 120 attached to the roof lining 104 of Fig. 3. Fig. 5 is a perspective view of the joining retainer 120 and its surroundings of the vehicle roof structure 100 of Fig. 1, seen obliquely from above. Fig. 6 is a plan view of the joining retainer 120 of Fig. 5. Fig. 7 is a perspective view of the joining retainer 120 of Fig. 5, seen from the back side.

[0027] Since the joining retainer 120 is formed symmetrically with respect to the center in the vehicle width direction, in Figures 6 and 7, only the components on the left side in the vehicle width direction are labeled with reference numerals, and the components on the right side in the vehicle width direction are not labeled with reference numerals. As shown in Figure 4, the joining retainer 120 is fixed to the upper side of the roof lining 104. The joining retainer 120 is molded from resin. The joining retainer 120 is fixed to the roof lining 104 with hot melt or the like.

[0028] As shown in FIGS. 5 to 7, the vehicle roof structure 100 has a first retainer 130 as part of the connecting retainer 120. The first retainer 130 has a first plate portion 131 disposed on the front side of the vehicle and extending linearly in the vehicle width direction, and a second plate portion 132 disposed on the rear side of the vehicle and having a U-shape in a plan view. The first retainer 130 also has a third plate portion 133 connecting an end portion of the first plate portion 131 with an end portion of the second plate portion 132. As shown in FIG. 6, the width L1 of the first plate portion 131, the width L2 of the second plate portion 132, and the width L3 of the third plate portion 133 are set such that L3 > L2 > L1. The magnitude relationship between L3, L2, and L1 can be changed as appropriate.

[0029] The first retainer 130 is formed in a ring shape surrounded by a first plate portion 131, a second plate portion 132, and a third plate portion 133, and has an interior light opening 130a. The first retainer 130 is positioned above the roof lining 104, i.e., above the periphery of the first opening 104a, so that the interior light opening 130a communicates with the first opening 104a. Note that the first retainer 130 does not necessarily have to be formed in a ring shape, and may be a flat plate, as long as it can fix the interior light 112.

[0030] As shown in Fig. 6, a plurality of support portions 141 to 144 are provided on the inside of the second plate portion 132 of the first retainer 130. Engagement holes 141a to 144a are formed in the support portions 141 to 144, with which engagement portions 112a to 112d (see Fig. 5) of the interior light 112 engage. With the engagement portions 112a to 112d of the interior light 112 and the engagement holes 141a to 144a of the support portions 141 to 144 engaged, the first retainer 130 fixes the interior light 112 via the first opening 104a. The first opening 104a and the interior light opening 130a are covered by the interior light 112.

[0031] 5 to 7, the vehicle roof structure 100 has a second retainer 150 as a part of the connecting retainer 120. The second retainer 150 has a fourth plate portion 151 disposed on the front side of the vehicle and extending linearly in the vehicle width direction, and a fifth plate portion 152 disposed on the rear side of the vehicle and extending in the vehicle width direction. The second retainer 150 also has a sixth plate portion 153 connecting the fourth plate portion 151 and the fifth plate portion 152. As shown in FIG. 6, the width M1 of the fourth plate portion 151 and the width M2 of the fifth plate portion 152 are set to be approximately the same. The magnitude relationship between M1 and M2 can be changed as appropriate.

[0032] Second retainer 150 is formed in an annular shape surrounded by fourth plate portion 151, fifth plate portion 152, and sixth plate portion 153, and has cover opening 150a. Second retainer 150 is located above roof lining 104, i.e., above the periphery of second opening 104b, with cover opening 150a communicating with second opening 104b.

[0033] 6, a sixth plate portion 153 of second retainer 150 is formed with a plurality of engagement holes 150b, 150c that engage with engagement portions 116a, 116b (see FIG. 5) of cover 116 of rearview mirror 114. With engagement portions 116a, 116b of cover 116 engaged with engagement holes 150b, 150c of sixth plate portion 153, second retainer 150 secures cover 116 via second opening 104b. Second opening 104b and cover opening 150a are covered by cover 116.

[0034] A dimension X2 of the second retainer 150 in the vehicle width direction is smaller than a dimension X1 in the vehicle width direction of the first retainer 130. The second retainer 150 protrudes from the first retainer 130 toward the front of the vehicle.

[0035] 7, first plate portion 131 of first retainer 130 and fifth plate portion 152 of second retainer 150 are integrated. The width of the portion where first plate portion 131 and fifth plate portion 152 are integrated (width L1+width M2 in FIG. 6) is greater than the width of other portions of first retainer 130 and second retainer 150.

[0036] 5, the vehicle roof structure 100 includes two fixing portions 160. The two fixing portions 160 protrude upward from the rear end portion in the vehicle front-rear direction of the first plate portion 131 of the first retainer 130 and the inner end portion in the vehicle width direction of the third plate portion 133.

[0037] Both the first plate portion 131 of the first retainer 130 and the fifth plate portion 152 of the second retainer 150 are disposed on the partition wall 104c (see FIG. 3). Therefore, in order to increase the rigidity of the partition wall 104c in FIG. 3, it can be said that the two fixing portions 160 only need to be connected to either the first plate portion 131 or the fifth plate portion 152 and protrude upward.

[0038] Each of the two fixing portions 160 has a protruding portion 162 that protrudes upward and an apex portion 164 that forms the apex of the protruding portion 162. The two fixing portions 160 are located between both ends of the boundary between the first retainer 130 and the second retainer 150 and both ends of the first retainer 130 that are on the outer side in the vehicle width direction. The two fixing portions 160 are located outside both ends of the boundary between the first retainer 130 and the second retainer 150 (the line connecting points P1 and P2 in FIG. 5) in the vehicle width direction, and are located inside the edge of the interior light opening 130a of the first retainer 130.

[0039] Figure 8 is a partially enlarged plan view showing the state in which the roof cross member 106 has been attached to the vehicle roof structure 100 of Figure 4. The two fixing portions 160 are fixed to the roof cross member 106 (see Figure 8) that extends across the vehicle width above the first retainer 130 and second retainer 150 on the roof lining 104 by clips (not shown) that are inserted through holes formed in the tops 164.

[0040] As shown in Fig. 5, the vehicle roof structure 100 includes a connecting portion 170 that connects two fixing portions 160. The connecting portion 170 has a standing wall 172 that extends in the vehicle width direction and the up-down direction, and an upper wall 174 that connects the upper end of the standing wall 172 and extends in the vehicle width direction and the front-to-rear direction. The standing wall 172 extends upward from the rear end portion in the vehicle front-to-rear direction of the first plate portion 131 of the first retainer 130. The upper wall 174 bends from the upper end of the standing wall 172 toward the rear of the vehicle.

[0041] As shown in Fig. 5, the vehicle roof structure 100 has a protruding piece 180 that protrudes toward the rear of the vehicle from the first retainer 130. As shown in Fig. 6, the dimension X3 of the protruding piece 180 in the vehicle width direction is smaller than the dimension X1 of the first retainer 130 in the vehicle width direction.

[0042] As shown in Figure 5, the vehicle roof structure 100 includes a pad 190 fixed to the upper surface of the protruding piece 180. The pad 190 is adhered to the protruding piece 180 with double-sided tape or hot melt. When double-sided tape is used, the thickness of the adhesive layer can be controlled. The pad 190 ensures a clearance between the roof lining 104 and the roof panel 102 (see Figure 9).

[0043] Figure 9 is a cross-sectional view of the vehicle roof structure 100 of Figure 1 as viewed from the vehicle width direction. As shown in Figure 9, the vehicle roof structure 100 further includes a roof cross member 106. The roof cross member 106 extends across the vehicle width direction above the first retainer 130 and the second retainer 150 (see Figure 8). The roof panel 102 is disposed above the first retainer 130 and the second retainer 150 and forms the exterior side of the vehicle roof.

[0044] Next, a description will be given of the assembly process of the vehicle roof structure 100. The first opening 104a is connected to the interior light opening 130a, and the second opening 104b is connected to the cover opening 150a, and the coupling retainer 120 is fixed to the upper side of the roof lining 104 (see FIGS. 3 and 4).

[0045] As shown in Fig. 5, the engaging portions 112a to 112d of the interior light 112 are engaged with the engaging holes 141a to 144a of the support portions 141 to 144, and the interior light 112 is fixed to the first retainer 130. The support pillar 115 of the rearview mirror 114 is passed through the second opening 104b and the cover opening 150a and fixed to the bracket 200 (see Fig. 8) fixed to the roof cross member 106. As shown in Fig. 5, the engaging portions 116a and 116b of the cover 116 are engaged with the engaging holes 150b and 150c of the sixth plate portion 116b, and the cover 116 is fixed to the second retainer 150.

[0046] 5, the first retainer 130 and the second retainer 150 are fixed to the roof lining 104 as a single unit, which improves their rigidity compared to when they are fixed separately to the roof lining 104. Therefore, the rigidity of the portions of the roof lining 104 to which the interior light 112 and the cover 116 of the rearview mirror 114 are attached is improved, and defects such as deformation of these portions are suppressed.

[0047] Since the second retainer 150 has a smaller dimension in the vehicle width direction than the first retainer 130, the rigidity of the portion where the second retainer 150 and the first retainer 130 are integrated can be improved compared to when the widths in the vehicle width direction of the second retainer 150 and the first retainer 130 are equal.

[0048] Because the two fixing portions 160 protruding upward from the first retainer 130 are fixed to the roof cross member 106, the rigidity of the first retainer 130 and the second retainer 150 is further improved, particularly in the region of the partition wall 140c between the first opening 104a and the second opening 104b. This further improves the rigidity of the portions of the roof lining 104 to which the interior light 112 and the cover 116 for the rearview mirror 114 are attached, further suppressing defects such as deformation of these portions.

[0049] The upright wall 172 and the upper wall 174 improve the rigidity of the first retainer 130, thereby improving the accuracy of positioning the first retainer 130 and the second retainer 150 relative to the roof lining 104. Therefore, deformation of the vehicle roof structure 100 can be more effectively prevented when a load is applied to the rearview mirror 114, the interior light 112, the first retainer 130, and the second retainer 150.

[0050] A pad 190 fixed to the protruding piece 180 is sandwiched between the roof panel 102 and the roof lining 104, ensuring clearance between them. Therefore, even if an occupant applies an upward load to the roof lining 104 by operating an operating portion 112x (see FIG. 2) provided on the interior light 112, the pad 190 restricts the upward movement of the first retainer 130. This more effectively prevents the first retainer 130 and the second retainer 150 from peeling off from the roof lining 104.

[0051] In addition, the presence of the protruding piece 180 clarifies the fixing position of the pad 190, improving the accuracy of the mounting position of the pad 190 and the workability during mounting. Furthermore, fixing the pad 190 to the protruding piece 180 improves the rigidity of the vehicle roof structure 100.

[0052] Since the protruding piece 180 has a smaller dimension in the vehicle width direction than the first retainer 130, the rigidity of the boundary portion where the protruding piece 180 and the first retainer 130 are integrated can be improved compared to a configuration in which the dimensions in the vehicle width direction of the protruding piece 180 and the first retainer 130 are equal.

[0053] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to these examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that these modifications and alterations also fall within the technical scope of the present invention.

[0054] Furthermore, the present invention can be practiced by freely combining inventions described in claims and examples, regardless of the dependent relationships of the claims. [Industrial Applicability]

[0055] The present invention can be used in a vehicle roof structure. [Explanation of symbols]

[0056] 100...vehicle roof structure, 102...roof panel, 104...roof lining, 104a...first opening, 104b...second opening, 106...roof cross member, 112...interior light, 112a to 112d...engagement portion, 112x...operation portion, 114...room mirror, 116...cover, 116a...engagement portion, 120...connecting retainer, 130...first retainer, 130a...interior light opening, 131...first plate portion, 132...second 2nd plate part, 133...3rd plate part, 141...support part, 141a...engaging hole, 150...2nd retainer, 150a...cover opening, 150b, 150c...engaging hole, 151...4th plate part, 152...5th plate part, 153...th 6 plate part, 160... fixed part, 162... protrusion part, 164... top part, 170... connecting part, 172... standing wall, 174... upper wall, 180... convex piece, 190... pad, L1, L2, L3, M1, M2... width, X1, X2... dimension

Claims

1. A vehicle roof structure including a roof lining that forms a passenger compartment side of a vehicle roof and has a predetermined first opening and a second opening, the vehicle roof structure further comprising: a first retainer positioned above the roof lining and configured to fix an interior light through the first opening; a second retainer positioned above the roof lining and configured to fix a cover for a rearview mirror through the second opening, A vehicle roof structure, wherein the first retainer and the second retainer are integrated.

2. the second retainer has a smaller dimension in the vehicle width direction than the first retainer, 2. The vehicle roof structure according to claim 1, wherein the second retainer protrudes forward from the first retainer.

3. The vehicle roof structure further comprises: a roof cross member extending in the vehicle width direction above the first retainer and the second retainer; The vehicle roof structure as described in claim 2, characterized in that it is provided with two fixing portions that protrude upward from the first retainer or the second retainer between the first opening and the second opening and are fixed to the roof cross member.

4. The vehicle roof structure further includes a connecting portion that connects the two fixing portions, 4. The vehicle roof structure according to claim 3, wherein the connecting portion has two upright walls, front and rear, and an upper wall connecting the upper ends of the two upright walls.

5. The vehicle roof structure further comprises: a protruding piece protruding from the first retainer toward the rear of the vehicle; a roof panel that is disposed above the first retainer and the second retainer and forms an exterior side of a roof of a vehicle; 3. The vehicle roof structure according to claim 2, further comprising: a pad fixed to the protruding piece to ensure a clearance between the roof lining and the roof panel.

6. 6. The vehicle roof structure according to claim 5, wherein the protruding piece has a smaller dimension in the vehicle width direction than the first retainer.

Citation Information

Patent Citations

  • In-vehicle monitor mounting device

    JP2009101724A