Toyoda Iron Works Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Michio Suzumori

Yusuke Suzuki

Satoko Tofukuji

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.

Battery cooler

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.

Suspension arm and method of producing the same

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.

Vehicle front structure

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.

Suspension arm

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.

Growing community of inventors

Toyota, Japan

Michio Suzumori