Abstract: A rear vehicle body structure includes a wheel housing including a wheel housing inner panel, a shock absorber mounting bracket mounted on the outside of the wheel housing inner panel, and a wheel housing reinforcement mounted inside the wheel housing inner panel and connected to the shock absorber mounting bracket.

Abstract: The rear structure for vehicles includes: a rear floor; and a pair of oblique members coupled to a lower surface of the rear floor and configured to be symmetrical with each other about a longitudinal centerline of the rear floor, each oblique member of the pair of oblique members extending from a first side and a second side, respectively, of the rear floor to a rear portion of the rear floor.

Abstract: A rear vehicle-body structure for suppressing deformation of a corner portion of a lift gate opening is provided, including a pair of left and right inner wheel wells having damper supports; and a framework member on a rear side of the inner wheel wells forming an opening edge of a back door opening. The framework member includes a header extending in a vehicle width direction forming an upper end edge of the back door opening; and pillars extending from the header to a vehicle lower side via corner portions of the back door opening. A pair of gussets connect rear portions of the inner wheel wells and the pillars to each other; a pair of connecting members connect the rear portions of the inner wheel wells and places near the corner portions to each other; and the gussets and the connecting members are joined at places near the damper supports.

Abstract: For improving the driving dynamics of a motor vehicle with two rear longitudinal members which are spaced apart from one another and which each have a rear axle bushing for receiving a rear axle and are connected to one another by a cross-member which is at the rear in the main travel direction of the motor vehicle, the rear cross-member has in the plane of its extent an offset in the direction of the rear of the vehicle. When considered in the vertical direction of the motor vehicle, an upper cross-member is located above the rear cross-member, wherein the upper cross-member is attached to the rear longitudinal members in the region of the respective rear axle bushings.

Abstract: A rear vehicle-body structure of a vehicle capable of increasing the support rigidity of a rear suspension and the transmission efficiency of a rear-end collision load to the vehicle front side. A side sill has an upper closed cross-section portion. The upper closed cross-section portion includes a closed cross-sectional space extending in the vehicle front-rear direction. A linear connecting frame connecting a rear end of the upper closed cross-section portion to a rear side housing is between the rear end of the upper closed cross-section portion and the rear side housing. The connecting frame is inclined to be closer to a vehicle lower side as the connecting frame approaches the vehicle front side. The upper closed cross-section portion is inclined to be closer to an upper side as the upper closed cross-section portion approaches a vehicle rear side to correspond to an inclination angle of the connecting frame.

Abstract: A chassis for a passenger car includes two main longitudinal chassis beams which are connected to one another via a bumper cross member. A support arrangement extends between the two beams and is supported on a central tunnel. The support arrangement forms a load path in an event of a collision-related force being applied to the passenger car where above and/or below the support arrangement an installation space region is provided for accommodating a component or unit in need of protection. The support arrangement includes a strut which extends in a region of a center of the passenger car between the two beams and which forms a protective device which transmits impact forces forwards to the central tunnel. The strut has a first longitudinal section that is deformable in a targeted energy-absorbing manner and a second longitudinal section which functions as a rigid beam.

Abstract: A vehicle rear structure includes: a pair of side sills mounted on both sides of a floor panel; a pair of rear side members coupled to the pair of side sills, respectively; and a reinforcing member mounted in an inside of each side sill. A front end of each rear side member is coupled to a rear end of each side sill, each rear side member has a front portion aligned with each side sill, respectively, the reinforcing member has a length extending from the inside of each side sill to an inside of the front portion of each rear side member, respectively, a battery housing of a battery assembly is coupled to the pair of side sills and the reinforcing member by a first bolt, and the battery housing of the battery assembly is coupled to the pair of rear side members and the reinforcing member by a second bolt.

Abstract: The present vehicle rear part structure includes: a rear cross member that extends in a vehicle width direction on a bottom of a vehicle, and is coupled to structural materials of both side parts of the vehicle; under braces that extend in the vehicle width direction, and couple the rear cross member, and the structural materials of both side parts of the vehicle; a pair of rear suspension towers that are provided in the both side parts of the vehicle, and support the pair of rear suspensions; and a room partition, having both ends in the vehicle width direction connected to the pair of rear suspension towers, and having an intermediate lower end in the vehicle width direction coupled to the rear cross member from an upper side. Coupling positions of the under braces and the rear cross member are below a coupling position of the room partition and the rear cross member.

Abstract: A rear cross member for a vehicle includes: an upper plate including an upper body, and upper side parts that are formed to extend from opposite ends of the upper body; a lower plate including a lower body that is coupled with the upper body, and lower side parts that are formed to extend from opposite ends of the lower body and are coupled with the upper side parts; and a front panel connected to the upper and lower plates.

Abstract: A vehicular roof structure has a roof side rail joined to a roof panel. The roof panel includes an inclined joining section, a vertical section and a horizontal joining section. The inclined joining section has an outer side portion of the roof panel that is bent inward in a vehicle width direction, and the roof side rail is joined thereto. The vertical section is provided on the inclined joining section on a rearward side of the vehicle body, and the outer side portion of the roof panel is bent vertically. The horizontal joining section protrudes outward from the vertical section in the vehicle width direction. A tail gate hinge is attached to the horizontal joining section.

Abstract: A rear side member rear includes a bottom plate, an upper plate, and a side plate that connects the bottom plate and the upper plate. On the bottom plate, a body mount bracket rear is provided. A fastening member fastens a vehicle length direction rearward of a rear suspension member upward to the body mount bracket rear. On the upper plate, a step structure, which is a fragile section, is formed further forward than a center axis of the suspension member bolt fastened to the body mount bracket rear.

Abstract: A vehicle body rear structure includes: a pair of left and right rear side frames extending in a fore-and-aft direction in a rear part of a vehicle; a rear subframe attached to the rear side frames; and a pair of left and right shock-absorbing structures respectively provided at rear ends of the rear side frames and extending rearward. The rear subframe includes a pair of left and right rear subframe longitudinal members extending in the fore-and-aft direction and a rear subframe cross member extending laterally and joined to the left and right rear subframe longitudinal members. The rear subframe cross member includes a protrusion that protrudes rearward in a laterally central part thereof. A rear end of the protrusion is positioned more rearward than the rear ends of the rear side frames and more forward than rear ends of the shock-absorbing structures.

Abstract: Provided is a rear vehicle body structure that includes: a right and left pair of frame members each extending in a front-rear direction and having a damper supporting part; rear wheel wells; a rear floor panel; a rear cross member upper part connecting the right and left pair of frame members to each other on a front side of the damper supporting parts; front side reinforcements provided along a vehicle cabin inner side of each of the rear wheel wells and extending in an up-down direction on the front side of the damper supporting parts; and a reinforcing member mounted on each of the frame members and having a reinforcing member main body that reinforces the damper supporting part and a reinforcing member coupling part that couples together the rear cross member upper part and the front side reinforcement.

Abstract: A recessed portion is formed at a frame member provided at a rear portion of a vehicle body and having a closed cross section extending in a vehicle longitudinal direction such that a part of a lower face of the frame member is recessed upwardly, where a damper of a rear suspension is inserted and fixed. A front portion of the frame member is joined to a side sill extending in the vehicle longitudinal direction at a position offset outwardly in a vehicle width direction from the frame member. Branch-shaped closed cross sections branching off from the closed cross section inwardly and outwardly relative to the damper are formed at a position corresponding to the recessed portion of the frame member. A portion of the frame member located at the above-described position is wide outwardly.

Abstract: A motor vehicle has a self-supporting body which has a passenger compartment, with two longitudinal members, with two rear reinforcing struts which run in a V-shaped manner and are fastened at the front ends thereof to lateral longitudinal member portions of the two longitudinal members. The lateral longitudinal portions run below the passenger compartment. The two reinforcing struts are arranged at the rear ends thereof on a receiving component. The receiving component is a plastics/metal hybrid component which is composed of an open, shell-shaped metal component and of a fiber-reinforced reinforcing plastics component. The plastics component is integrated in the metal component and reinforces the metal component.

Abstract: A rear support structure for a vehicle includes a parcel cross-member and a brace assembly. The parcel cross-member extends from a first side structure to a second side structure of the vehicle and includes a first vertical member, a second vertical member, and an upper horizontal member that at least partially define an opening between the cargo area and the passenger compartment. The brace assembly includes a first brace extending across the opening and including a first end secured to the upper horizontal member adjacent a longitudinal centerline of the vehicle and a second brace extending across the opening and including a first end secured to the upper horizontal member adjacent to the longitudinal centerline. The first brace further includes a second end secured to the first vertical member and the second brace includes a second end secured to the first vertical member.

Abstract: A motor vehicle has a self-supporting body which has a passenger compartment, with two longitudinal members, with two rear reinforcing struts which run in a V-shaped manner and are fastened at the front ends thereof to lateral longitudinal member portions of the two longitudinal members. The lateral longitudinal portions run below the passenger compartment. The two reinforcing struts are arranged at the rear ends thereof on a receiving component. The receiving component is a plastics/metal hybrid component which is composed of an open, shell-shaped metal component and of a fiber-reinforced reinforcing plastics component. The plastics component is integrated in the metal component and reinforces the metal component.

Abstract: A sub-frame mounting structure is provided. The sub-frame mounting structure includes an outer pipe that is mounted on a vehicle body and an inner pipe that is inserted into and coupled to the outer pipe and detached from the outer pipe when an impact load of a predetermined size or greater is transferred thereto. An anti-rotation structure prevents a relative rotation between the inner pipe and the outer pipe. A sub-frame is fastened to the inner pipe to support the vehicle body through the outer pipe to stably support the vehicle body by the sub-frame and to detach the sub-frame from the vehicle body during a collision.

Abstract: A vehicle side portion structure includes a cross member extended along a vehicle width direction, a pillar that extends along a vertical direction at an end, in a vehicle width direction, of a vehicle, and a gusset for connecting an end portion, in the vehicle width direction, of the cross member to the pillar. The gusset includes a plate portion whose inner end portion in the vehicle width direction is fastened to the cross member, the plate portion being extended from a region including a position fastened to the cross member toward a pillar side and having a region upwardly inclined toward outside in the vehicle width direction until the plate portion reaches in a region on the pillar side to a pillar side end, and a flange joined to the pillar side end of the plate portion and fastened to the pillar. A fastening position of the flange and the pillar is located upward of a fastening position of the inner end portion, in the vehicle width direction, of the gusset and the cross member.

Abstract: A tailgate for a vehicle including an inner panel and an outer panel. The outer panel includes an appearance wall and an edge wall adjacent to the appearance wall and taking part in delimiting a housing for receiving an optical unit. The outer panel further includes a bridge wall, located on the inside face of the outer panel, forming a bridge between the edge wall and the appearance wall and serving as a part of a bonding interface between the outer panel and the inner panel. A process for molding the outer panel for the tailgate for a vehicle, wherein a movable slider is built and used in a mold to create a naturally non-demoldable hollow cavity delimited by the appearance wall, the edge wall and the bridge wall.

Abstract: A rear vehicle-body structure of a vehicle comprises a wheel house, a side frame, a suspension comprising a damper and a spring, and a suspension housing connecting the side frame and the wheel house. The suspension housing includes a supporting part for supporting the damper and a spring receiving part for supporting an upper end portion of the spring at a position located on an outward side, in a vehicle width direction, of the side frame and on an upward side, in a vehicle vertical direction, of a lower end of the side frame. Further, connection portions connecting, in the vehicle vertical direction, the side frame and the spring receiving part are provided on a downward side, in the vehicle vertical direction, of the spring receiving part.

Abstract: A vehicle rear structure according to the present invention includes: a rear side frame disposed on each side of the rear portion of a vehicle body; and a rear cross-member coupling the rear side frames to each other. Each of the rear side frames includes a front-rear portion extending in a front-rear direction of the vehicle body and an oblique portion extending obliquely so as to be displaced gradually outward in a vehicle width direction as extending frontward from a front end of the front-rear portion, the oblique portion includes a narrowest portion at which the area of a closed cross-section is smallest, and the rear cross-member couples the narrowest portions to each other.

Abstract: Rear side members include: side walls inclined outward in the vehicle width direction; and side wall flanges bent from front ends of the side walls, and extending inward in the vehicle width direction. A center floor cross member has a side wall contacting with the side wall flanges of the rear side members. Reinforcement members include: side walls extending to the side wall of the center floor cross member; and flanges bent from rear ends of the side walls, extending outward in the vehicle width direction, and at least partially coinciding with the side wall flanges of the rear side members in the vehicle width direction with the side wall of the center floor cross member interposed therebetween.

Abstract: A rear vehicle-body structure of a vehicle comprises a wheel house, a side frame, a suspension comprising a damper, and a suspension housing connecting the side frame and the wheel house. The suspension housing includes a support face portion for supporting the damper, a level floor portion which extends outward from its connection portion to the side frame, and a vertical wall portion which extends upward from an outward-side edge portion, in a vehicle width direction, of the level floor portion up to an inward-side edge portion, in the vehicle width direction, of the support face portion.

Abstract: A vehicle body of shell construction has a rear frame extending in the transverse direction of the vehicle. The rear frame has a support rear panel configured as an inner shell and a rear panel configured as an outer shell. The support rear panel is composed of a center part and at least two side parts. The center part is configured as a lock counterpart for a lock of a rear flap. In the region of the lock counterpart, the rear frame is solely comprised of the center part as the inner shell and the support rear panel as the outer shell, without sheet metal doubling or reinforcement structures.

Abstract: Provided is a rear end structure of a vehicle body, with which it is possible to reduce vehicle weight and achieve satisfactory vehicle body rigidity. The rear end structure of a vehicle body is equipped with a floor panel having a low floor part, a high floor part provided rearward of the low floor part, and a floor recess formed in the high floor part and describing a protuberant configuration when viewed in the longitudinal direction of the vehicle, and a brace connecting the low floor part and the bottom surface of the floor recess.

Abstract: A hatchback door includes a load-bearing inner panel made of composite plastic material, a plastic top outer panel glued on a top portion of the inner panel, and a plastic bottom outer panel glued on a bottom portion of the inner panel. The top panel includes a first layer of transparent plastic material and a second layer of opaque plastic material or opaque paint. The opaque layer covers only some of the transparent layer such that the top panel is transparent in a central part overlying a rear-window opening of the inner panel and in its peripheral portions that function as transparent elements for two lateral sets of lights and a third top set of lights. The light sets are without a front transparent element and are connected to a rear side of the top panel. The transparent peripheral portions constitute the front transparent elements of the light sets.

Abstract: A vehicle rear section structure includes: left and right rear side members disposed along a front-rear direction at width direction sides of a rear floor pan; a rear suspension member extending along the vehicle front-rear direction, and attached to front portions of left and right rear side members; a load bearing section projecting upwardly from the rear suspension member; left and right reinforcement members extending along the vehicle front-rear direction, and disposed at a vehicle width direction inner side of rear portions of the left and right rear side members and at a vehicle rear side of the rear suspension member, a rear end portion of the reinforcement member partially overlapping a rear bumper reinforcement in a vehicle front-rear direction view; and a rear cross member linking the left and right rear side members together and partially overlapping the load bearing section in the vehicle front-rear direction view.

Abstract: Each rear pillar (4) includes a rear pillar inner panel (33) and a rear pillar reinforcement (34). The rear pillar inner panel (33) and the rear pillar reinforcement (34) each include a substantially L-shaped corner portion (C1, C2) raised toward the rear pillar inner panel (33), and a ridge portion (X1, X2). The corner portions (C1, C2) are arranged next to each other in the direction toward a reinforcement (50), and an L-shaped closed cross section (40) is formed between the corner portions (C1, C2). The reinforcement (50) is, not via the closed cross section, directly connected to the corner portions (C1, C2). An upper portion of the L-shaped closed cross section (40) is connected to a closed rear header cross section (19).

Abstract: An object is to provide a vehicle rear portion structure that improves rigidity of a vehicle rear portion. At a wheel house connecting member, both end portions in a vehicle transverse direction of a top surface portion are joined to joining stays that are provided at wheel houses, and lower portions of both end portions in the vehicle transverse direction of a vertical wall portion, that extends toward a vehicle lower side from the top surface portion, are joined to fixing members. Accordingly, vehicle rigidity between the wheel houses, that are connected by the wheel house connecting member at a rear portion of a vehicle, improves.

Abstract: There is provided a vehicle rear portion structure that can improve torsional rigidity of a rear body that has side members and a cross member. A bracket has a top wall portion to which an HV (high voltage) battery is fixed. Further, the bracket has a first leg portion, that extends from a front end portion of the top wall portion toward a vehicle lower side and that is fixed to a first rear cross member, and a second leg portion, that extends from a vehicle transverse direction outer side end portion of the top wall portion toward the vehicle lower side and that is fixed to a rear side member.

Abstract: Falling-in deformation, in which a second quarter pillar deforms so as to fall toward a vehicle vertical direction lower side, is suppressed. Due to twisting input being applied to a vehicle, a second quarter pillar deforms so as to fall toward the vehicle vertical direction lower side. A connecting member, whose lower end portion is joined to a joined region of a wheel house and a lower end portion of a first quarter pillar, receives this falling-in deformation of the second quarter pillar. Accordingly, because the connecting member, whose lower end portion is securely fixed, receives the falling-in deformation of the second quarter pillar, the falling-in deformation of the second quarter pillar is effectively suppressed.

Abstract: A vehicle has a body, a flat component arranged under the body, and at least one axle carrier arrangement for two front or two rear wheel suspensions. The axle carrier arrangement includes a left-hand suspension arm bracket for connecting at least one suspension arm of the left-hand wheel suspension, a right-hand suspension arm bracket for connecting at least one suspension arm of the right-hand wheel suspension, and a center suspension arm bracket for connecting at least one suspension arm of the lefthand wheel suspension and at least one suspension arm of the right-hand wheel suspension. The three suspension arm brackets are each mounted on the body and the flat component, wherein the three suspension arm brackets are three separate components that are not directly connected, and wherein at least one of the suspension arm brackets has a bearing for an electric machine that drives the vehicle.

Abstract: A vehicle body rear structure includes a rear parcel provided between left and right vehicle body side parts, a parcel cross member bonded to the rear parcel and constituting a first closed cross section, and a parcel member and parcel support bonded to the first closed cross section and constituting the main section of a second closed cross section. The first closed cross section is configured from the rear parcel and the parcel cross member. Furthermore, the first closed cross section continues through the main section of the second closed cross section to the left vehicle body side part.

Abstract: A trunk panel comprises a bottom portion, a first standing wall portion, and a second standing wall portion. A protrusion portion is provided at a rear end portion of the bottom portion and the second standing wall portion to protrude upward. This protrusion portion is spaced apart from the first standing wall portion such that a passage is formed between the protrusion portion and the first standing wall portion, wherein the passage is configured to allow water to flow down from a portion of the bottom portion which is located forward of the protrusion portion toward a rear end portion of the bottom portion and the second standing wall portion. Thereby, any bad influences of rainwater or the like, which may be brought to various kinds of members around or arranged below a rear lamp, can be properly restrained.

Abstract: A vehicle body rear structure is provided with a rear panel stiffener including a stiffener L-shaped sectional portion, a rear girder including an inner L-shaped sectional portion, and a corner panel configured from an upper stiffener extension and a rear panel side extension. The stiffener L-shaped sectional portion has a first ridge line, and the inner L-shaped sectional portion has a second ridge line. The upper stiffener extension is provided with an upper L-shaped sectional portion that is continuous with the respective L-shaped sectional portions, and has a third ridge line that is contiguous with the respective ridge lines. The rear panel side extension is provided with a bulkhead that partitions a corner closed sectional portion.

Abstract: A vehicle upper body structural brace apparatus includes a first member having a first end in a rear region of a vehicle and second and third members each coupled to a second end of the first member. The second and third members are configured to couple lower and upper unibody vehicle structural components, respectively. The first, second and third members transfer impact forces at the first end of the first member from the first end, around first and second vehicle interior regions, and to the lower and upper unibody vehicle structural components.

Abstract: A rear corner vehicle roof structure includes a rear structural pillar and a small cap-like reinforcement member. The rear pillar includes a vertically elongated base portion which transitions into a bifurcated upper end portion forming a longitudinally extending stub arm which is affixed to an associated side roof rail and a laterally extending stub arm which is affixed to an associated rear roof header. The reinforcement member includes a central bridge portion trifurcated to form extensions conforming to the pillar upper portion, the longitudinally extending stub arm and the laterally extending stub arm. The reinforcement member further includes peripherally flanged web segments disposed between circumferentially adjacent pairs of the pillar base portion, longitudinal and lateral stub arms. The flanged web segments are affixed to opposed continuous flange portions of the upper end portion and configured to support the central bridge portion in a spaced relation from the upper end portion.

Abstract: A vehicle body lateral section contains an upper stiffener, which extends upward from a rear wheel housing and overlaps a bottom end of a pillar inner. The upper stiffener is provided with an extension that continues to the pillar inner. The vehicle body lateral section has: a first closed-cross-section section formed from the rear wheel housing and the upper stiffener; and a second closed-cross-section section formed from the pillar inner and a pillar stiffener.

Abstract: In a vehicle rear structure, flange portions disposed on an end portion of a front skeleton that extend in the vehicle width direction along a front edge of an upper back panel are joined to a joined flange portion between a wheel well outer member and a wheel well inner member of a rear wheel well. The joined flange portion is a region whose rigidity is high in a vehicle body side portion. Moreover, the flange portions of the front skeleton are joined to flange portions of the wheel well outer member and the wheel well inner member in a three-layer overlay. Because of this, the rigidity of the joint between the front skeleton and the vehicle body side portion is better than heretofore.

Abstract: A rear side panel assembly of a motor vehicle body includes an inner side panel element and an outer side panel element. The inner and outer side panel elements are joined to one another in the transverse direction (y) of the vehicle. The inner side panel element has, in relation to the vertical direction (z) of the vehicle, a wheel arch adjoining downwards onto a longitudinal beam and an inner roof frame profile adjoining upwards onto a vehicle roof. The outer side panel element has on its outer side, facing away from the inner side panel element, a connection region for the detachable arrangement of a rear fender.

Abstract: A substructure for a motor vehicle has a first side member including an upper shell and a lower shell, which crosses a rear axle and extends at least as far as to under a passenger cell. In a transition region between the rear axle and the passenger cell, the side member includes at least one wall part which is fastened to the upper and the lower shell in a material-doubling manner.

Abstract: A vehicle body includes: an opening that is formed in the rear surface; a rear panel assembly having a closed cross-sectional shape and being located at the lower edge of the opening and extending in the width direction of the vehicle; left and right rear wheel wells located in front of the rear panel assembly; and left and right gussets for panels, the gussets connecting the left and right rear wheel wells and the rear panel assembly. Each of the rear wheel wells forms a portion of each of the inner walls of the vehicle body side sections, and the rear wheel wells have support sections for supporting rear dampers for the left and right rear suspensions.

Abstract: Disclosed is an automotive rear vehicle body structure which comprises a rear subframe (21) provided with right and left side member segments (22). Each of the right and left side member segments (22) has a rear region provided with a rear fixing section (26) attached to a respective one of right and left rear side frames (7), and a front region provided with a front fixing section (25) attached to a vehicle-body cross member (10). A position of the front fixing section (25) of each of the side member segments (22) is set to be located inward of the respective one of the rear side frames (7) in a vehicle width direction, and each of the side member segments (22) is provided with an arm support section (28) configured to pivotally support a suspension arm (32), at a position rearward of the front fixing section (25).

Abstract: A rear shock absorber mounting structure for a vehicle includes a rear shock absorber upper cover which may be mounted on a wheel housing and on which a rear shock absorber may be engaged and supported, an inner dual rail member which may be mounted on an inner surface of the wheel housing, which may be oriented toward a vehicle interior along a width direction of a vehicle, and an outer dual rail member which may be mounted on an outer surface of the wheel housing, which may be oriented toward an outside of the vehicle interior along the width direction of the vehicle, and thereby, the rear shock absorber mounting structure may be configured by a simple structure, and mounting stiffness of the rear shock absorber may be increased.

Abstract: A vehicle body includes: rear side members disposed at both sides of the vehicle body; a rear cross member rear having both end portions fixed to the rear side members; a rear cross member front having both end portions fixed to the rear side members, and disposed in front of the rear cross member rear; and a rear cross panel having a lower surface that is supported on and joined to the rear side members, the rear cross member rear, and the rear cross member front.

Abstract: A vehicle rear body structure includes rear floor panels, rear wheel housings, and rear side extensions. The rear side extensions each have a first joined portion that is joined to a breadthways outer end of each of the rear floor panels, a second joined portion that is joined to an rear end of each of the rear wheel housings, a side portion that is an uprising slanted portion extending from the rear end of the first joined portion to the second joined portion, a surface portion surrounded by the first joined portion, the second joined portion, and the side portion, and an extending portion joined to a flange portion of a rear pillar, wherein the side portion is configured to have higher stiffness or strength than at least the surface portion.

Abstract: Deformation of a trunk door is suppressed with a simple structure. A lateral bead is formed along a ridgeline region that is formed by an inner upper wall portion and an inner rear wall portion of an inner panel of the trunk door. The lateral bead is not connected to a ring bead formed at an outer periphery of the inner panel. Thus, stiffness of the ridgeline region may be suppressed compared with a case in which the lateral bead is connected to the ring bead. Thus, substantial V-form folding of an outer upper wall portion and an outer rear wall portion may be suppressed.

Abstract: A vehicle rear body part includes a rear side member provided on both sides of a rear floor and a lower part of a back door opening section higher than the rear side member. The rear floor is divided into a main rear floor panel and left and right side rear floor panels with the rear side member placed therebetween. In the rear side member, rear side member upper panels are configured to close an opening in an upper part and joined to flanges on both the left and right sides. Upright sections are provided at rear ends of the rear side member upper panels. The upright sections are joined to a lower part of the opening section. The upper panels, the rear side member, and the floor panels and are joined in three layers in the flanges of the upper panels.

Abstract: The present invention relates to a side member in shell design for a rear frame of a self-supporting body of a motor vehicle, having a lower shell and an upper shell which are connected to each other in a fixed manner and at least in portions for a closed hollow member, wherein the lower shell is assembled from three shell parts, which in extension direction of the side member are arranged one after the other, wherein a middle shell part arranged between the two other shell parts at least in portions is formed as metal cast component, in particular steel cast component.