Abstract: A second joining flange formed along an edge of a second panel and a third joining flange formed along an edge of a third panel are superimposed on a first joining flange formed along an edge of a first panel, a seam weld is made in a section in which the first joining flange and the second joining flange form two layers and a section in which the first joining flange and the third joining flange form two layers, and a spot weld is made in a section in which the first joining flange, the second joining flange and the third joining flange form three layers. Such structure enhances production efficiency by increasing welding speed, and facilitates spot welding in the section having three layers, for which seam welding is difficult due to the large number of superimposed sheets, thereby enhancing strength against peel-off.

Abstract: A vehicle body bottom structure includes left and right side sills which are provided to extend in a vehicle front-rear direction along outside end portions of a vehicle body in a vehicle width direction, a dash cross member which is coupled to front ends of the left and right side sills, and extends in the vehicle width direction, an outrigger which is connected to a rear end of a front side frame, and coupled to each of the front ends of the left and right side sills, to extend in the vehicle width direction, and a dash lower having a wheel housing portion is clamped to be joined between the dash cross member and the outrigger.

Abstract: A vehicle body bottom structure includes a dash lower for separating a vehicle compartment from a power mounted room as well as separating the vehicle compartment from a wheel house, a front pillar which is erected at a vehicle-widthwise end portion of the dash lower, and a gusset which is bridged between the dash lower and the front pillar. The gusset is joined to the dash lower at one end thereof, and is spaced apart from the dash lower as the gusset approaches the front pillar, to be joined to the front pillar at the other end thereof, and a crushing space of a substantially triangular shape in a plan view is formed in a portion surrounded by the dash lower, the front pillar, and the gusset.

Abstract: A vehicle body bottom structure includes a dash lower for separating a vehicle compartment from a power mounted room as well as separating the vehicle compartment from a wheel house, a front pillar which is erected at a vehicle-widthwise end portion of the dash lower, and a gusset which is bridged between the dash lower and the front pillar. The gusset is joined to the dash lower at one end thereof, and is spaced apart from the dash lower as the gusset approaches the front pillar, to be joined to the front pillar at the other end thereof, and a crushing space of a substantially triangular shape in a plan view is formed in a portion surrounded by the dash lower, the front pillar, and the gusset.

Abstract: A vehicle body bottom structure includes left and right side sills which are provided to extend in a vehicle front-rear direction along outside end portions of a vehicle body in a vehicle width direction, a dash cross member which is coupled to front ends of the left and right side sills, and extends in the vehicle width direction, an outrigger which is connected to a rear end of a front side frame, and coupled to each of the front ends of the left and right side sills, to extend in the vehicle width direction, and a dash lower having a wheel housing portion is clamped to be joined between the dash cross member and the outrigger.

Abstract: Provided is a vehicle body bottom structure capable of restricting retraction of a front pillar by improving absorption performance for a collision load at a time of a narrow offset collision. The vehicle body bottom structure includes a dash lower for partitioning a vehicle compartment and a power mounted room as well as partitioning the vehicle compartment and a wheel house, a front pillar erected at a vehicle-widthwise end portion of the dash lower, and a gusset bridged between the dash lower and the front pillar, wherein the gusset is joined to the dash lower at one end thereof, and is spaced further from the dash lower the nearer to the front pillar, to be joined to the front pillar at the other end thereof, and wherein a crushing space is formed in a portion surrounded by the dash lower, the front pillar, and the gusset.

Abstract: A second joining flange formed along an edge of a second panel and a third joining flange formed along an edge of a third panel are superimposed on a first joining flange formed along an edge of a first panel, a seam weld is made in a section in which the first joining flange and the second joining flange form two layers and a section in which the first joining flange and the third joining flange form two layers, and a spot weld is made in a section in which the first joining flange, the second joining flange and the third joining flange form three layers. Such structure enhances the production efficiency by increasing welding speed and makes it possible to spot weld in the section having three layers, for which seam welding is difficult due to the large number of superimposed sheets, thus enhancing the strength against peel-off.

Abstract: Provided is a vehicle body bottom structure capable of restricting retraction of a front pillar by improving absorption performance for a collision load at a time of a narrow offset collision. The vehicle body bottom structure includes a dash lower for partitioning a vehicle compartment and a power mounted room as well as partitioning the vehicle compartment and a wheel house, a front pillar erected at a vehicle-widthwise end portion of the dash lower, and a gusset bridged between the dash lower and the front pillar, wherein the gusset is joined to the dash lower at one end thereof, and is spaced further from the dash lower the nearer to the front pillar, to be joined to the front pillar at the other end thereof, and wherein a crushing space is formed in a portion surrounded by the dash lower, the front pillar, and the gusset.

Abstract: A vehicle includes a crush area disposed in front end part of each side sill, the crush area being crushable under a collision load upon collision in order to absorb the collision load. A bulkhead is disposed on the rear of the crush area inside the side sill. A reinforcing frame is attached to a side surface of the side sill facing a vehicle interior, one end of the reinforcing frame being joined to surface part of a portion, where the bulkhead is disposed, of the side sill such that the reinforcing frame extends rearwardly and inwardly in a vehicle width direction, the other end thereof being joined to a floor frame.

Abstract: A vehicle includes a crush area disposed in front end part of each side sill, the crush area being crushable under a collision load upon collision in order to absorb the collision load. A bulkhead is disposed on the rear of the crush area inside the side sill. A reinforcing frame is attached to a side surface of the side sill facing a vehicle interior, one end of the reinforcing frame being joined to surface part of a portion, where the bulkhead is disposed, of the side sill such that the reinforcing frame extends rearwardly and inwardly in a vehicle width direction, the other end thereof being joined to a floor frame.