Abstract: A trap device including an exhaust gas introduction pipe configured to allow an exhaust gas to flow and be led out from an outlet; a fin member provided in a position where the fin member faces the outlet and is hit by the exhaust gas led out from the outlet; an exhaust path forming member covering at least a portion of the exhaust gas introduction pipe and including an exhaust path configured to exhaust the exhaust gas such that the exhaust gas is turned back, via the fin member, in an opposite direction to a direction of flow of the exhaust gas in the exhaust gas introduction pipe; and a cooling jacket configured to cool the fin member is provided. The fin member includes a fin extending in the opposite direction to the direction of the flow of the exhaust gas in the exhaust gas introduction pipe.

Abstract: The suspension assembly mounting method includes: a step of mounting the suspension assembly on a pallet having a support body and a movable member relatively movable with respect to the support body, so as to fix the base body to the support body and engage the arm member with the movable member; a step of causing the movable member to press the arm member upward so that the suspension assembly becomes a position where its own weight load equivalent to the vehicle body weight is applied; a step of lifting the pallet from under the vehicle body and contacting the suspension assembly to the vehicle body; a step of raising the pallet while stopping the movable member from pressing after the contacting; and a vehicle mount step of mounting the suspension assembly on the vehicle body while causing the movable member to press the arm member upward.

Abstract: The suspension assembly mounting method includes: a step of mounting the suspension assembly on a pallet having a support body and a movable member relatively movable with respect to the support body, so as to fix the base body to the support body and engage the arm member with the movable member; a step of causing the movable member to press the arm member upward so that the suspension assembly becomes a position where its own weight load equivalent to the vehicle body weight is applied; a step of lifting the pallet from under the vehicle body and contacting the suspension assembly to the vehicle body; a step of raising the pallet while stopping the movable member from pressing after the contacting; and a vehicle mount step of mounting the suspension assembly on the vehicle body while causing the movable member to press the arm member upward.