Abstract: A floor member includes a floor member front arranged at a front side and a floor member rear arranged at a rear side. A member rear upper is mounted on the floor member front. The floor member front and the floor member rear respectively have a front upper bead and a rear lower bead that extend in a longitudinal direction of a vehicle.

Abstract: A rocker includes a lower wall portion, which is an inclined surface inclined downward toward the inside of a vehicle body, on the lower surface of the rocker, and a floor panel is bonded to the lower wall portion. Accordingly, when an in-plane tensile force is applied to the floor panel the in-plane tensile force is applied not in a direction where the bonding between the rocker and the floor panel is separated but in a direction where the bonding between the rocker and the floor panel is shorn. As a result, it may be possible to improve bonding strength. Further, a corner portion is formed at the end portion of the inclined surface facing the floor panel, and a frictional force is generated at the corner portion between the floor panel and the rocker. Therefore, a load, which is applied to the floor panel, can be distributed to the rocker.

Abstract: There is provided a framework structure of a vehicle where high productivity can be obtained, a reinforcement and an outer frame can be completely welded to each other, and the reinforcing ability of the reinforcing member can be sufficiently obtained when the reinforcing member is provided on the outer member. A plurality of protruding portions, which protrudes toward an outer member, is formed on the outer surface of a reinforcement of a center pillar. These protruding portions are disposed so as to be separated from each other in the longitudinal direction of the reinforcement. Further, non-protruding portions where the protruding portions are not formed are formed in the vicinity of a belt line, and the protruding portions are formed at other positions.

Abstract: There is provided an underbody structure capable of exactly distributing and transmitting a front collision load to front and back skeleton portions of an underbody even in a case where the front collision load to be input from the front of a vehicle is concentrated on one side in a vehicle width direction. When a power unit 1 moves rearward due to an offset collision load of a right front face of a vehicle, a right connecting arm 7G of a sub-frame 7, an engine rear mount 7E, and right and left stoppers 7H and 7I receive an offset collision load from the power unit 1, thereby suppressing generation of an unintended rotative force in the power unit 1. The sub-frame 7 distributedly transmits an offset collision load to a rear portion 4A of a right front side member 4, and right and left tunnel reinforcements 5 and 5 mainly through four paths of a right beam 7D, a right load transmission beam 7J2, and right and left load transmission beams 7J3 and 7J4 of an intermediate portion.

Abstract: A tunnel is provided at a central portion, in the vehicle width direction, of a floor panel. The tunnel extends in a longitudinal direction of a vehicle. Along the lateral portion of the floor panel, a rocker extending in the longitudinal direction of the vehicle is provided. A floor crossmember is spanned between the tunnel and the rocker. The floor crossmember is composed of a first floor crossmember and a second floor crossmember. A fragile portion is formed at a fitting portion between the first floor crossmember and the second floor crossmember. The fragile portion F is disposed at a position closer to a lateral center position of the floor panel than a lateral portion of the floor panel.

Abstract: In a center pillar structure (1), the strength of a center pillar (10) is locally low at a weak portion (17) and at a weak portion (18). Thus, when a vehicle is hit on the side, the center pillar (10) bends at the weak portion (17) and at the weak portion (18), and the other vehicle advances substantially horizontally. This can reduce the bending moment generated in the center pillar (10) due to advancement of the other vehicle, so it is possible to control deformation of the center pillar (10) in the event of a side collision while ensuring the strength of the center pillar (10).

Abstract: A bulkhead and a bulkhead are provided in a rocker so that a portion of the rocker, which portion is subject to bending due to buckling, is positioned between the bulkheads. If the portion of the rocker is bent due to buckling, for example, at the time of vehicle collision, a bulkhead is caught between the bulkheads, and absorbs a load applied to the bulkheads. In this way, when the rocker is deformed, the load is absorbed by the bulkhead.

Abstract: There is provided an underbody structure capable of exactly distributing and transmitting a front collision load to front and back skeleton portions of an underbody even in a case where the front collision load to be input from the front of a vehicle is concentrated on one side in a vehicle width direction. When a power unit 1 moves rearward due to an offset collision load of a right front face of a vehicle, a right connecting arm 7G of a sub-frame 7, an engine rear mount 7E, and right and left stoppers 7H and 7I receive an offset collision load from the power unit 1, thereby suppressing generation of an unintended rotative force in the power unit 1. The sub-frame 7 distributedly transmits an offset collision load to a rear portion 4A of a right front side member 4, and right and left tunnel reinforcements 5 and 5 mainly through four paths of a right beam 7D, a right load transmission beam 7J2, and right and left load transmission beams 7J3 and 7J4 of an intermediate portion.

Abstract: The object of the invention is to provide a structure for side portion of a vehicle body, which can suppress large deformation of a door beam (impact beam) when a side collision load is inputted to the door beam, and a vehicle provided with the structure for side portion of a vehicle body. In the invention, if a side collision load of a vehicle is inputted to the door beam, the front end portion of the door beam is supported by a front pillar portion, and an intermediate portion close to the rear end of the door beam is supported by a support convex portion of a swollen portion which is swollen forward from a center pillar portion.

Abstract: A vehicle lower body structure includes a cross member that extends in the vehicle-width direction, that defines part of a vehicle compartment, and that includes a first cross member which is formed of a plate member and a second cross member which is formed of a plate member and which is provided at a position closer to the rear of a vehicle than the first cross member, the first cross member and the second cross member facing each other. A plurality of closed section portions is formed by the first cross member and the second cross member. The closed section portions are connected to each other via a portion at which the first cross member and the second cross member are continuously overlapped with each other.

Abstract: A structural member includes: a compression-side wall part disposed in a compressive stress field of a bend; a tension-side wall part disposed in a tensile stress field of the bend; and a coupling wall part that couples the compression-side wall part and the tension-side wall part. The neutral axis of the bend is disposed in the vicinity of the compression-side wall part. For example, the compression-side wall part is higher in material strength, and/or larger in sheet thickness, than the tension-side wall part.

Abstract: A member of a vehicle frame structure includes an extension portion that extends in a longitudinal direction and a kick portion positioned behind, and below the extension portion. Buckling lines are formed in parallel with each other in the extension portion, and each of the buckling lines is inclined such that a lower end is positioned ahead of an upper end in a side view. If a collision load is applied from a front side of a vehicle at the time of vehicle collision, the extension portion is deformed along the buckling lines, and a front end of the extension portion is displaced downward. Therefore, a vertical offset between the front end of the extension portion and the kick portion is reduced, thereby reducing a bending moment applied to the kick portion. Accordingly, the required yield strength of the kick portion can be set to a lower value.

Abstract: A vehicle body front structure and an impact absorbing method thereof, in which an impact force applied to front side members is efficiently absorbed by an intended deformation of a reinforcing member. A part of the impact force applied to the front side members (12) is received by supporting forces in axial directions of a dash cross member (20) and a pillar brace (22). A recess (24) is provided in the dash cross member (20) in the portion thereof connected with the front side member (12). A recess (26) is provided in the pillar brace (22) in the portion thereof connected with the front side member (12). Due to the dash cross member (20) and the pillar brace (22) compressively deforming in the axial directions starting at these recesses (24), (26), the dash cross member (20) and the pillar brace (22) absorb impact force which is applied to the front side members (12) from the front of the vehicle.

Abstract: A bumper reinforcement structure having a bumper reinforcement which extends along a vehicle transverse direction of a vehicle body and which is disposed at longitudinal direction end portions of side frames disposed along a vehicle longitudinal direction and which has a projecting portion projecting at least one of further upwardly and further downwardly than the longitudinal direction end portions of the side frames. The bumper reinforcement structure includes a load transmitting portion which is not rigidly fixed to the longitudinal direction end portions of the side frames and which, at the time of a collision, applies to the side frames a force in an opposite direction to a direction in which the projecting portion of the bumper reinforcement projects with respect to the side frames. Accordingly, at the time of a collision, a bending moment, which is in a direction of offsetting a bending moment acting on the side frames, is applied to the side frames via the load transmitting portion.

Abstract: A lower body structure for a vehicle having a pair of side sills provided respectively at vehicle transverse ends of a floor panel in such a manner as to extend in a longitudinal direction of the vehicle includes: a floor-panel reinforcing member disposed on an underside of the floor panel in such a manner as to extend in the longitudinal direction of the vehicle at a position spaced apart from each of the side sills in a transversely inward direction of the vehicle; and a side-sill reinforcing member disposed on an upper surface of the floor panel in such a manner as to extend in a transverse direction of the vehicle and connect a vehicle transverse inner side portion of each of the side sills and the floor panel, wherein the side-sill reinforcing member is provided such that a portion of the floor panel which extends from each of the side sills to a position spaced apart a predetermined distance from the floor-panel reinforcing member in a transversely outward direction of the vehicle is reinforced along th

Abstract: A front side member of an automobile has a rigid portion formed in a closed cross section by an inner panel and an outer panel and extending in the longitudinal direction of a car body, and a base portion extending inwards and downwards in the lateral direction of the car body from the rigid portion. The rigid portion is provided with a reinforcement arranged in the closed cross section and extending in the longitudinal direction of the car body. The reinforcement is shortened less than the inner panel at a top portion thereof and provided with a linear corner portion. As a result, an axis, which is one of rectangular coordinate axes as principal axes of the closed cross section and which maximizes a moment of inertia with respect to the axis, is formed so as to direct downwards from the outside to the inside in the lateral direction of the car body.

Abstract: A structure of a panel includes a peripheral portion and an intermediate portion integrally provided with the peripheral portion. At least the intermediate portion includes a curved surface having a substantially constant sum of the maximum curvature and the minimum curvature at all the points on a surface of the intermediate portion. Further, the peripheral portion is formed as the same curved surface as the curved surface of the intermediate portion, or a curved surface having a curvature different from the curvature of the curved surface of the intermediate portion so as to enhance the panel stiffness of the peripheral portion.

Abstract: A front body structure for vehicles comprises a side sill formed by a first frame and a second frame each having closed cross sections, wherein the first frame is curved upwardly and is further curved inwardly in a transverse direction of a vehicle body so as to form a cowl front portion and the second frame is curved inwardly in the transverse direction of the vehicle body so as to form a dash cross portion, and a front side frame which bifurcates into two bifurcated portions in a vicinity of a front side portion of the vehicle body. The first and second frames are respectively joined to end portions of the bifurcated portions, substantially even therewith. An end portion of a lower bifurcated portion of the front side frame is joined without offset to the dash cross portion. An end portion of an upper bifurcated portion of the front side frame is joined without offset to the cowl front portion. Consequently, load inputted to the front frame can be received by the side sill via the first and second frames.

Abstract: A method of detecting a tape thickness d and/or a winding diameter Rs of a successive magnetic tape wound on first and second reels therebetween comprising determining a first rotational number C.sub.1 of the first reel indicating variation in a winding number of the magnetic tape on the first reel and a second rotational number C.sub.2 of the second reel indicating variation in a winding number of the magnetic tape on the second reel and a winding radii of the first and second reels reel being Ro and Rs, respectively, when the first and second rotational numbers C.sub.1 and C.sub.2 are zero, while the magnetic tape is being transferred between a first winding state at which the first and second rotational numbers C.sub.1 and C.sub.2 are C.sub.1 a and C.sub.2 a and a second winding state at which the first and second rotational numbers C.sub.1 and C.sub.2 are C.sub.1 b and C.sub.2 b, determining the tape thickness d from an expression (1);d=(-G.multidot.M+E.multidot.N)/(E.multidot.H-F.multidot.

Abstract: A vehicle framing structure has elongated side sills longitudinally disposed in the lower portions of a vehicle, spring supports longitudinally disposed either at the front or in the rear portions of the sills, or both, and side members having one end connected to the sills and the other end connected to the spring supports, the side members having straight line axes when viewed in a plan view. The arrangement reduces torsional deformation of the side members and improves rigidity in the connection between the sills and the spring supports.