Abstract: A battery cooler comprises a refrigerant filling chamber, a refrigerant inflow passage, and a refrigerant outflow passage. The refrigerant filling chamber is sandwiched between opposed battery unit cells and is arranged at a position for receiving heat of the unit cells. The refrigerant inflow passage is connected to a lower portion of the refrigerant filling chamber. The refrigerant outflow passage is connected to an upper portion of the refrigerant filling chamber. The refrigerant filling chamber has at least one joint part joining partially and mutually opposed wall surfaces so as to suppress expansion and deformation of these surfaces caused by the pressure of the refrigerant. An outflow side wall surface rises from a bottom surface of the refrigerant filling chamber toward a connection part of the refrigerant outflow passage. The outflow side wall surface is provided with an inclined surface directed downward from a horizontal direction.

Abstract: A battery mounting frame for mounting a battery on a vehicle, including a hollow frame having a pair of first frame members, positioned in the vehicle on front and rear sides of the battery, extending in a lateral direction of the vehicle, and a pair of second frame members positioned in the vehicle on laterally outward sides of the battery, the second frame members connecting ends of the first, wherein the battery mounting frame is supported by a vehicle body so the battery is located inside the frame. Each first frame member has a length equal to or larger than that of the second frame member, and each first frame member has, in each lateral end portion, a first bend of a first angle so the first frame member is positioned more toward the outside of the frame as it goes from the first bend laterally outward in the vehicle.

Abstract: A suspension arm includes a suspension arm body having a tubular joint portion defining an opening in an end surface, and a bushing receiving sleeve integrally welded to the end surface of the tubular joint portion to seal the opening in the end surface. The end surface is curved to have a circular arc profile complementary to the cylindrical outer surface of the bushing receiving sleeve so that when butted against the cylindrical outer surface the end surface is in contact with the cylindrical outer surface on its entire periphery. The end surface is butted against the cylindrical outer surface in the entire periphery and then welded along the entire periphery to the cylindrical outer surface.

Abstract: A vehicle body front structure including: a bumper beam; side member; and crash-box including a polygonal-tubular-body, the crash-box between the bumper beam end and side member with the tubular body parallel axis to the vehicle front-rear direction, wherein the crash-box absorbs impact energy as the tubular body is collapsed under compressive load applied from the bumper beam. The polygonal-tubular-body includes outer and inner sidewalls, wherein the outer and inner sidewalls are inclined laterally outwardly in the vehicle as they approach the bumper beam, wherein the outer sidewall inclination angle with respect to the vehicle front-rear direction is greater than the inner sidewall inclination angle. The bumper beam has at the end a first portion whose front side surface is perpendicular to the vehicle front-rear direction, extending from the terminal of the beam inwardly at least to the same lateral location as the laterally outer side of the side member.

Abstract: A vehicle front structure including: a front side member in a side part of a vehicle that extends in a longitudinal direction; apron upper member above the front side member; and apron lower member that bridges between the upper member and a front end portion of the front side member. The lower member includes: a first end portion fixedly attached to the upper member and extending toward the front of the vehicle; an upper bent portion bent toward the bottom from the first end portion; an intermediate joint portion extending linearly from the upper bent portion toward the bottom; a lower bent portion bent toward the front from the intermediate joint portion, and the lower bent portion including a second end portion that is provided by a distal end portion of the lower bent portion, the second portion being fixedly attached to the front portion of the first side member.

Abstract: A suspension arm includes an arm body having a longitudinal shape, a wheel-side attachment portion disposed at one end of the arm body, and a vehicle body-side attachment portion disposed at the other end of the arm body, and is mounted near a drive shaft to extend in a lateral direction of a vehicle, the arm body including an overlap portion that overlaps the drive shaft as viewed from a front in a longitudinal direction of a vehicle, a weak portion having lower strength than the overlap portion being provided between the overlap portion and the wheel-side attachment portion, the arm body having a hollow longitudinal shape, and portions on both sides of the weak portion being quenched by high frequency heating so as to have high strength, such that the weak portion is partially provided at an intermediate position between the overlap portion and the wheel-side attachment portion.

Abstract: A bumper reinforcement comprising an elongated, channel-shaped body member with a bottom portion, sidewall portions, and an open side and a closure member closing the open side of the body member so that the bumper reinforcement has a closed cross section. The closure member provides an impact surface that receives an external impact. The closure member comprises lateral edges and a central portion, the closure member being welded to the body member with the lateral edges of the closure member laid on inner surfaces of open side edges of the sidewall portions of the body member.

Abstract: Embodiments includes a bumper reinforcement for an automobile, including a length of channel-shaped body member and a closure member closing the open side of the body member, the body member and the closure member forming a closed structure, wherein the closure member provides an impact surface that receives impact in an event of a collision. The closure member may include a lateral edge being overlapped on an inner surface of an open-side edge of the body member, the overlapped lateral edge and open-side edge being welded to each other; a flange extending from the lateral edge outwardly beyond the open-side edge of the body member.

Abstract: A bumper reinforcement comprising an elongated, channel-shaped body member with a bottom portion, sidewall portions, and an open side and a closure member closing the open side of the body member so that the bumper reinforcement has a closed cross section. The closure member provides an impact surface that receives an external impact. The closure member comprises lateral edges and a central portion, the closure member being welded to the body member with the lateral edges of the closure member laid on inner surfaces of open side edges of the sidewall portions of the body member.

Abstract: A suspension arm includes an arm body having a longitudinal shape, a wheel-side attachment portion disposed at one end of the arm body, and a vehicle body-side attachment portion disposed at the other end of the arm body, and is mounted near a drive shaft to extend in a lateral direction of a vehicle, the arm body including an overlap portion that overlaps the drive shaft as viewed from a front in a longitudinal direction of a vehicle, a weak portion having lower strength than the overlap portion being provided between the overlap portion and the wheel-side attachment portion, the arm body having a hollow longitudinal shape, and portions on both sides of the weak portion being quenched by high frequency heating so as to have high strength, such that the weak portion is partially provided at an intermediate position between the overlap portion and the wheel-side attachment portion.

Abstract: A suspension arm includes a suspension arm body having a tubular joint portion defining an opening in an end surface, and a bushing receiving sleeve integrally welded to the end surface of the tubular joint portion to seal the opening in the end surface. The end surface is curved to have a circular arc profile complementary to the cylindrical outer surface of the bushing receiving sleeve so that when butted against the cylindrical outer surface the end surface is in contact with the cylindrical outer surface on its entire periphery. The end surface is butted against the cylindrical outer surface in the entire periphery and then welded along the entire periphery to the cylindrical outer surface.

Abstract: A vehicle front structure including: a front side member in a side part of a vehicle that extends in a longitudinal direction; apron upper member above the front side member; and apron lower member that bridges between the upper member and a front end portion of the front side member. The lower member includes: a first end portion fixedly attached to the upper member and extending toward the front of the vehicle; an upper bent portion bent toward the bottom from the first end portion; an intermediate joint portion extending linearly from the upper bent portion toward the bottom; a lower bent portion bent toward the front from the intermediate joint portion, and the lower bent portion including a second end portion that is provided by a distal end portion of the lower bent portion, the second portion being fixedly attached to the front portion of the first side member.