Vehicle body roof structure
The vehicle roof structure integrates common components with standard roof specifications by using continuous outer surfaces and shared moldings, addressing the incompatibility and cost issues of glass roof structures, while maintaining waterproofing and visibility.
Patent Information
- Application Number
- JP2024055383
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-10-10
AI Technical Summary
Existing vehicle roof structures for vehicles with glass roofs require dedicated parts and equipment, making them incompatible with standard roof specifications, leading to increased manufacturing complexity and costs.
A vehicle roof structure design that includes front and rear roof panels, flanges, extensions, and roof side panels joined to form a continuous outer surface, allowing the use of common components with standard roof specifications, and incorporating a roof glass molding that matches the height of the roof panels to minimize glass area and ensure waterproofing.
The design achieves structural commonality with standard roof specifications, simplifies manufacturing, reduces labor and costs, and maintains waterproof integrity while ensuring minimal glass area for visibility.
Smart Images

Figure 2025153092000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a vehicle body roof structure. [Background technology]
[0002] For vehicles such as automobiles, glass roof specifications are applied, in which non-openable roof glass is installed on the top surface of the vehicle body, which is made up of a roof panel, etc., and standard roof specifications are applied, in which no roof glass is installed.
[0003] Patent Document 1 describes a vehicle roof structure in which roof glass is fitted into a large opening formed in a roof panel. In this vehicle roof structure, molding mounting grooves are formed between the left and right side edges of the roof glass and the left and right roof side rails, and a roof molding is fitted into the molding mounting grooves.
[0004] The roof molding body has support legs that fit into the molding mounting grooves, a lip portion, and a sloped portion. The lip portion is formed on one side edge of the molding body and extends beyond the molding mounting groove to cover the peripheral edge of the roof glass. The sloped portion is formed on the other side edge of the molding body and slopes smoothly downward toward the bottom of the molding mounting groove.
[0005] The vehicle roof structure in Patent Document 1 not only improves the appearance by continuously covering the roof side rails to the roof glass with the molding itself, but also protects the edge of the roof glass by covering it with the lip portion. [Prior art documents] [Patent documents]
[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-168680 Summary of the Invention [Problem to be solved by the invention]
[0007] However, in the roof structure of the vehicle in Patent Document 1, the roof molding is a dedicated part for the glass roof specification and has a different structure from the parts for the standard roof specification, making it impossible to standardize them. Also, because a large roof glass is attached to the roof panel, dedicated equipment is required to install the roof glass on the roof panel.
[0008] In view of these problems, the present invention aims to provide a vehicle roof structure that can be made common with standard roof specifications, simplify the structure, and prevent increases in manufacturing labor and costs. [Means for solving the problem]
[0009] In order to solve the above problems, a typical configuration of a vehicle roof structure according to the present invention is a vehicle roof structure comprising a front roof panel and a rear roof panel that are respectively arranged in front of and behind an opening in which a roof glass is installed and that form the top surface of the vehicle, the vehicle roof structure further comprising a front flange that protrudes from the rear end of the front roof panel to the rear of the vehicle, a front extension that extends from both ends of the front flange in the vehicle width direction to the rear of the vehicle, a rear flange that protrudes from the front end of the rear roof panel to the front of the vehicle, a rear extension that extends from both ends of the rear flange in the vehicle width direction to the front of the vehicle, and a side panel that protrudes from the side of the vehicle The roof side panel is joined to a side body panel that constitutes the roof glass molding. The roof side panel is joined to the front extension and the rear extension and extends along the edge of the opening, and the roof glass molding is installed around the roof glass. The roof glass molding is located on the outside in the vehicle width direction and has an outer surface that extends in the fore-and-aft direction of the vehicle along the roof side panel, and the outer surface of the roof glass molding is formed with a step that is continuous in the fore-and-aft direction at the same height as the front step formed in the front roof panel and the rear step formed in the rear roof panel. [Effects of the Invention]
[0010] According to the present invention, it is possible to provide a vehicle body roof structure that can be made common with standard roof specifications, and that can simplify the structure and prevent increases in manufacturing man-hours and costs. [Brief explanation of the drawings]
[0011] [Figure 1] 1 is a diagram schematically illustrating a vehicle roof structure according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing a main part of the vehicle body roof structure of FIG. [Figure 3] FIG. 3 is a view showing a main part of the vehicle body roof structure of FIG. 2. [Figure 4] 4A to 4C are diagrams showing cross sections of the vehicle body roof structure of FIG. [Figure 5] FIG. 4 is a diagram showing a state in which a roof side molding is attached to the vehicle body roof structure of FIG. 3(a). [Figure 6] 6A to 6C are diagrams showing cross sections of the vehicle body roof structure of FIG. 5. DETAILED DESCRIPTION OF THE INVENTION
[0012] 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 the 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.
[0013] a front flange extending from the rear end of the front roof panel toward the rear of the vehicle, a front extension extending from both ends of the front flange in the vehicle width direction toward the rear of the vehicle to the rear of the vehicle, a rear flange extending from the front end of the rear roof panel toward the front of the vehicle to the front of the vehicle, a rear extension extending from both ends of the rear flange in the vehicle width direction toward the front of the vehicle to the front of the vehicle, a roof side panel joined to the side body panel that constitutes the side of the vehicle body, the roof side panel joined to the front extension and rear extension and extending along the edge of the opening, and a roof glass molding installed around the roof glass, the roof glass molding having an outer surface located outward in the vehicle width direction and extending in the fore-and-aft direction along the roof side panel, and a step formed on the outer surface of the roof glass molding that is continuous in the fore-and-aft direction at a height equivalent to the front step formed in the front roof panel and the rear step formed in the rear roof panel.
[0014] In the above configuration, the roof side panels are arranged along the edge of the opening where the roof glass is installed and are joined to the front extension of the front roof panel and the rear extension of the rear roof panel. This allows the area of the roof glass to be minimized to meet the required visibility range without compromising marketability. This allows the roof glass to be small, eliminating the need for dedicated equipment when installing the roof glass.
[0015] In addition, in the above-described configuration, the outer surface of the roof glass molding is formed with a step that is continuous in the front-to-rear direction and is at the same height as the front step of the front roof panel and the rear step of the rear roof panel. This results in the outer surface of the roof glass molding having a shape that roughly matches the side shape of the roof panel used in a standard roof specification in which no roof glass is installed. Therefore, by adopting the roof side molding used in the standard roof specification, the step of the roof glass molding can be brought into contact with, for example, the inner lip of the roof side molding. This allows the roof side molding of the standard roof specification to cover the spaces between the front roof panel, roof side panel, and rear roof panel and the side body panel.
[0016] In this way, with the above-mentioned configuration, only the components arranged around the roof glass, i.e., the front roof panel, rear roof panel, roof side panels, and roof glass molding, are dedicated parts. Therefore, with the above-mentioned configuration, the structure can be shared with the standard roof specification, the structure can be simplified, and an increase in manufacturing man-hours and costs can be prevented.
[0017] The roof side panel has a bead portion that extends in the fore-and-aft direction of the vehicle and protrudes upward, and the roof glass molding has a cutout portion that is formed in a position that overlaps the bead portion of the roof side panel from above and is recessed upward in the fore-and-aft direction of the vehicle so that the bead portion fits into it, and the step portion of the roof glass molding contacts the inner lip of a specified roof side molding, and the top of the bead portion of the roof side panel contacts the cutout portion.
[0018] In the above-described configuration, the formation of a bead portion in the roof side panel increases the rigidity of the panel. This makes the panel less susceptible to deformation and reduces the occurrence of gaps between the panel and the roof glass molding. Furthermore, the contact between the top of the bead portion of the roof side panel and the notch in the roof glass molding allows a labyrinth structure to be formed between the panel and the roof glass molding, ensuring waterproofing.
[0019] Furthermore, the step of the roof glass molding comes into contact with the inner lip of the roof side molding, allowing the roof glass molding to be sandwiched between the roof side panel and the roof side molding. The roof side molding is also sandwiched between the step of the roof glass molding and the side body panel. This makes it possible to use the roof side molding used in standard roof specifications and hold this roof side molding in place.
[0020] The bead portion of the above-mentioned roof side panel is formed a predetermined distance from the front end and rear end of the roof side panel that are joined to the front extension portion and rear extension portion, and the roof glass molding has a front convex portion that is located on the front side of the vehicle of the cutout, extends to the front end of the roof glass molding and is convex downward, and abuts the upper surface of the front roof panel, and a rear convex portion that is located on the rear side of the vehicle of the cutout, extends to the rear end of the roof glass molding and is convex downward, and abuts the upper surface of the rear roof panel.
[0021] In the above configuration, the bead portion does not reach the front end and rear end of the roof side panel. This allows the joint between the front end of the roof side panel and the front extension of the front roof panel, and the joint between the rear end of the roof side panel and the rear extension of the rear roof panel, to be flat. This makes it less likely for gaps to form at these joints, and the sealant is less likely to run out when applied to the joints, preventing a decrease in waterproofing performance.
[0022] In addition, in the roof glass molding, by abutting the front convex portion against the upper surface of the front roof panel and the rear convex portion against the upper surface of the rear roof panel, gaps are less likely to occur, thereby ensuring watertightness. [Example]
[0023] Fig. 1 is a diagram that schematically shows a vehicle body roof structure 100 according to an embodiment of the present invention. Fig. 1(a) is a diagram that shows the vehicle body roof structure 100 as viewed obliquely from above. Fig. 1(b) is a diagram that schematically shows the interior of the vehicle body roof structure 100 of Fig. 1(a). In each of the following figures, the front-to-rear direction of the vehicle is indicated by arrows Front and Back, the left and right directions in the vehicle width direction are indicated by arrows Left and Right, and the up-down direction of the vehicle is indicated by arrows Up and Down.
[0024] The vehicle roof structure 100 is a glass roof structure in which a non-openable roof glass 104 is installed on the vehicle body top surface 102, and is equipped with a front roof panel 106 and a rear roof panel 108 as shown in FIG. 1(a). The front roof panel 106 and the rear roof panel 108 are panels respectively arranged in front of and behind an opening 110 shown in FIG. 1(b) in which the roof glass 104 is installed, and form the vehicle body top surface 102.
[0025] The vehicle roof structure 100 also employs predetermined roof side moldings 112, 114. The roof side moldings 112, 114 are not exclusive parts for the glass roof specification, but are also common parts for the standard roof specification, which does not have the roof glass 104. The roof side moldings 112, 114 extend in the fore-and-aft direction of the vehicle between the side body panels 116, 118 that make up the sides of the vehicle, the front roof panel 106, the roof glass 104, and the rear roof panel 108.
[0026] 1(b) extend across the vehicle width and are spaced apart in the vehicle front-rear direction. The first front roof cross member 120, second front roof cross member 122, and central roof cross member 124 are positioned between the side body panels 116, 118. The first front roof cross member 120 is not a dedicated part for the glass roof specification, but is a part that is also used with the standard roof specification.
[0027] The front roof panel 106 is disposed above a first front roof cross-member 120 and a second front roof cross-member 122. The rear roof panel 108 is disposed above a central roof cross-member 124.
[0028] Furthermore, side roof members 126, 128 extending in the vehicle longitudinal direction span between the second front roof cross member 122 and the central roof cross member 124. The side roof members 126, 128 are also joined to the side body panels 116, 118.
[0029] Figure 2 is a diagram showing a main part of the vehicle body roof structure 100 of Figure 1. Figure 2(a) is an exploded perspective view of the vehicle body roof structure 100 of Figure 1(a). Figure 2(b) is an enlarged view showing a part of the vehicle body roof structure 100 of Figure 2(a).
[0030] The front roof panel 106 has a front flange 130 and front extensions 132, 134 shown in Figure 2(a). The front flange 130 protrudes toward the rear of the vehicle from a rear end 136 of the front roof panel 106. The front extensions 132, 134 extend toward the rear of the vehicle from both ends of the front flange 130 in the vehicle width direction.
[0031] The rear roof panel 108 has a rear flange 138 and rear extensions 140, 142. The rear flange 138 protrudes toward the front of the vehicle from a front end 144 of the rear roof panel 108. The rear extensions 140, 142 extend toward the front of the vehicle from both ends of the rear flange 138 in the vehicle width direction.
[0032] As shown in Figure 2(a), the vehicle body roof structure 100 further includes roof side panels 146, 148, and a roof glass molding 150 installed around the periphery of the roof glass 104. The roof side panels 146, 148 are disposed above the side roof members 126, 128 shown in Figure 1(b), and extend in the fore-and-aft direction of the vehicle along edges 152, 154 of the opening 110. The roof side panels 146, 148 are joined to the side body panels 116, 118, and are further joined to front extensions 132, 134 of the front roof panel 106 and rear extensions 140, 142 of the rear roof panel 108, respectively.
[0033] 2(b), a front end 158 of the roof side panel 146 is joined to the front extension 132 of the front roof panel 106. A rear end 160 of the roof side panel 146 is joined to the rear extension 140 of the rear roof panel 108. Note that, although the following mainly describes the roof side panel 146 and its surrounding structure, the roof side panel 148 and its surrounding structure also have the same configuration and function.
[0034] The roof side panel 146 has a bead portion 162 that extends in the vehicle longitudinal direction and protrudes upward. The bead portion 162 is formed at a predetermined distance from a front end portion 158 and a rear end portion 160 that are joined to the front extension portion 132 and the rear extension portion 140, respectively, and does not reach the front end portion 158 or the rear end portion 160.
[0035] This allows the joint 164 between the front end 158 of the roof side panel 146 and the front extension 132 of the front roof panel 106, and the joint 166 between the rear end 160 of the roof side panel 146 and the rear extension 140 of the rear roof panel 108 to be flat. This makes it less likely for gaps to form at the joints 164, 166, and furthermore, when applying sealant to the joints 164, 166, the sealant is less likely to run out, preventing a decrease in waterproofing performance.
[0036] Furthermore, the front extension 132 of the front roof panel 106 is joined to the side body panel 116 at a predetermined front joint 168. The rear extension 140 of the rear roof panel 108 is joined to the side body panel 116 at a predetermined rear joint 170. Furthermore, the bead portion 162 has a plurality of portions 171 where the width in the vehicle width direction is large.
[0037] Figure 3 is a diagram showing the main parts of the vehicle body roof structure 100 of Figure 2. Figure 3(a) shows the vehicle body roof structure 100 of Figure 2(b) in a state where a roof glass 104 with a roof glass molding 150 installed therein is attached. Figure 3(b) is a diagram showing the roof glass molding 150 of Figure 3(a) as viewed from the back side. Figure 4 is a diagram showing each cross section of the vehicle body roof structure 100 of Figure 3(a).
[0038] As shown in Figures 3(a) and 3(b), the roof glass molding 150 has a cutout 172, a front convex portion 174, and a rear convex portion 176. As shown in Figure 3(a), the cutout 172 is formed in a position where it overlaps the bead portion 162 of the roof side panel 146 from above, and is recessed upward in the longitudinal direction of the vehicle. For this reason, the bead portion 162 fits into the cutout 172, and the cutout 172 comes into contact with a peak 178 of the bead portion 162, as shown in the cross section BB of Figure 4(b).
[0039] In this way, the rigidity can be increased by forming the bead portion 162 on the roof side panel 146. This makes the roof side panel 146 less likely to deform, and reduces the occurrence of gaps between the roof side panel 146 and the roof glass molding 150.
[0040] Furthermore, as the top 178 of the bead portion 162 of the roof side panel 146 comes into contact with the cutout portion 172 of the roof glass molding 150, a labyrinth structure as shown in Figure 4(b) can be formed between the roof side panel 146 and the roof glass molding 150, thereby ensuring waterproof performance.
[0041] The front convex portion 174 is located on the vehicle front side of the cutout portion 172, extends to the front end 180 of the roof glass molding 150 shown in Figure 3(b), and is convex downward. Furthermore, the front convex portion 174 abuts against the upper surface of the front extension portion 132 of the front roof panel 106, as shown in Figures 3(a) and 4(c) along the CC cross section.
[0042] The rear convex portion 176 is located on the vehicle rear side of the cutout portion 172, extends to the rear end 182 of the roof glass molding 150 shown in Figure 3(b), and is convex downward. Furthermore, the rear convex portion 176 abuts against the upper surface of the rear extension portion 140 of the rear roof panel 108, as shown in the AA cross section in Figures 3(a) and 4(a).
[0043] 4(a) and 4(c), in the roof glass molding 150, by having the front convex portion 174 abut against the upper surface of the front roof panel 106 and the rear convex portion 176 abut against the upper surface of the rear extension portion 140 of the rear roof panel 108, gaps are less likely to occur, and watertightness can be ensured. Note that the front convex portion 174 and the rear convex portion 176 of the roof glass molding 150 are molded as a single unit, but this is not a limitation, and separate spacers may also be used.
[0044] 4 is located inside the roof glass molding 150, and is coated with glass adhesive, thereby further increasing the mounting strength of the roof glass molding 150.
[0045] Furthermore, as shown in Figure 3(a), the bead portion 162 of the roof side panel 146 is located on the extension of a front step portion 186 formed on the inner wall surface of the front roof panel 106 and a rear step portion 188 formed on the inner wall surface of the rear roof panel 108.
[0046] The outer surface 190 of the roof glass molding 150 shown in Figure 4 is located on the outer side in the vehicle width direction and extends in the vehicle front-to-rear direction. A step 192 is formed on the outer surface 190. The step 192 on the outer surface 190 is continuous in the front-to-rear direction at the same height as the front step 186 of the front roof panel 106 and the rear step 188 of the rear roof panel 108 shown in Figure 3(a). As a result, the outer surface 190 of the roof glass molding 150 has a shape that roughly matches the side shape of the roof panel 194 used in the standard roof specification, shown by the chain line in Figure 4. This makes it possible to use roof side moldings 112 for the standard roof specification (see Figures 5 and 6).
[0047] Figure 5 is a diagram showing a state in which a roof side molding 112 has been attached to the vehicle body roof structure 100 of Figure 3(a). Figure 6 is a diagram showing various cross sections of the vehicle body roof structure 100 of Figure 5. Figures 6(a), 6(b), and 6(c) are DD, EE, and FF cross sections of the vehicle body roof structure 100 of Figure 5, and show cross sections at the same positions as Figures 4(a), 4(b), and 4(c).
[0048] In the vehicle roof structure 100, as shown in Fig. 6, the step portion 192 of the roof glass molding 150 can be brought into contact with the inner lip 196 of the roof side molding 112 of a standard roof specification, and the outer lip 198 can be brought into contact with the side body panel 116. This allows the roof side molding 112 to cover the spaces between the front roof panel 106, the roof side panel 146, and the rear roof panel 108 and the side body panel 116. At this time, as shown in Figs. 6(a) and 6(c), the front joint portion 168 and the rear joint portion 170 are also covered by the roof side molding 112.
[0049] 6(b), a clip 199, which is a fixing member, can be disposed on the upper surface of the roof side panel 146, and the roof side molding 112 can be fixed using the clip 199. The clip 199 is disposed adjacent to a portion 171 that is set in the bead portion 162 shown in FIG. 2(b) and has a large width in the vehicle width direction.
[0050] Furthermore, the step portion 192 of the roof glass molding 150 comes into contact with the inner lip 196 of the roof side molding 112 , so that the roof glass molding 150 can be sandwiched between the roof side panel 146 and the roof side molding 112 .
[0051] Furthermore, the roof side molding 112 is sandwiched between the step portion 192 of the roof glass molding 150 and the side body panel 116. This allows the roof side molding 112 used in the standard roof specification to be adopted and held in place.
[0052] In this way, in the vehicle body roof structure 100, the roof side panels 146, 148 are arranged along the edges 152, 154 of the opening 110 in which the roof glass 104 is installed, and are joined to the front extensions 132, 134 of the front roof panel 106 and the rear extensions 140, 142 of the rear roof panel 108. This allows the area of the roof glass 104 to be the minimum area that satisfies the required visibility range without compromising marketability. This allows the roof glass 104 to be small, eliminating the need for dedicated equipment when installing the roof glass 104.
[0053] Furthermore, in the vehicle body roof structure 100, only the components arranged around the roof glass 104, namely the front roof panel 106, rear roof panel 108, roof side panels 146, 148, roof glass molding 150, second front roof cross member 122, and central roof cross member 124, are dedicated parts. Therefore, the vehicle body roof structure 100 achieves structural commonality with the standard roof specification, simplifies the structure, and prevents increases in manufacturing man-hours and costs.
[0054] 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. [Industrial Applicability]
[0055] The present invention can be used in a vehicle roof structure. [Explanation of symbols]
[0056] 100...vehicle roof structure, 102...vehicle body top, 104...roof glass, 106...front roof panel, 108...rear roof panel, 110...opening, 112, 114...roof side molding, 116, 118...side body panel, 120...first front roof cross member, 122...second front roof cross member, 124...central roof cross member, 126, 128...side roof members, 130...front flange, 132, 134...front extension, 136...rear end of front roof panel, 138...rear flange, 140, 142...rear extension, 144...front end of rear roof panel, 146, 148...roof side panel, 150...roof glass molding, 152, 15 4...edge of opening, 158...front end of roof side panel, 160...rear end of roof side panel, 162...bead portion, 164, 166...joint portion, 168...front joint portion, 170...rear joint portion, 171...bead portion, 172...cutout portion, 174...front convex portion, 176...rear convex portion, 178...top of bead portion, 180...front end of roof glass molding, 182...rear end of roof glass molding, 184...glass surface, 186...front step portion of front roof panel, 188...rear step portion of rear roof panel, 190...outer surface of roof glass molding, 192...step portion of outer surface, 194...standard roof panel, 196...inner lip, 198...outer lip, 199...clip
Claims
1. In a vehicle roof structure including a front roof panel and a rear roof panel that are respectively disposed in front of and behind an opening in which a roof glass is installed and that form a vehicle body top surface, the vehicle roof structure further comprises: a front flange extending from a rear end of the front roof panel toward the rear of the vehicle; a front extension portion extending from each end of the front flange in the vehicle width direction toward the rear of the vehicle; a rear flange extending from a front end of the rear roof panel toward the front of the vehicle; a rear extension portion extending from each end of the rear flange in the vehicle width direction toward the front of the vehicle; a roof side panel joined to a side body panel constituting a side surface of a vehicle body, the roof side panel being joined to the front extension portion and the rear extension portion and extending along an edge of the opening; a roof glass molding installed around the periphery of the roof glass, the roof glass molding has an outer surface that is located on an outer side in a vehicle width direction and extends in a vehicle front-rear direction along the roof side panel, A vehicle roof structure characterized in that a step portion that is continuous in the fore-and-aft direction is formed on the outer surface of the roof glass molding at a height equivalent to that of the front step portion formed in the front roof panel and the rear step portion formed in the rear roof panel.
2. The roof side panel has a bead portion that extends in the vehicle front-rear direction and protrudes upward, the roof glass molding has a notch formed at a position overlapping the bead portion of the roof side panel from above, the notch being recessed upward in the vehicle front-rear direction so that the bead portion can fit into the notch; the step portion of the roof glass molding comes into contact with the inner lip of a predetermined roof side molding, 2. The vehicle roof structure according to claim 1, wherein the top of the bead portion of the roof side panel contacts the notch.
3. the bead portion of the roof side panel is formed at a predetermined distance from the front end portion and the rear end portion of the roof side panel that are joined to the front extension portion and the rear extension portion, The roof glass molding is a front convex portion that is located on the vehicle front side of the cutout portion, extends to a front end of the roof glass molding, and is convex downward, and abuts against an upper surface of the front roof panel; 3. The vehicle roof structure according to claim 2, further comprising a rear convex portion located on the vehicle rear side of the cutout, extending to the rear end of the roof glass molding and convex downward, the rear convex portion abutting the upper surface of the rear roof panel.
Citation Information
Patent Citations
Roof structure of vehicle
JP2006168680A