Patent ID: 11873024
Assignee: MAZDA MOTOR CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A suspension subframe structure comprising:
a suspension subframe that supports a suspension member for a front wheel, characterized in that the suspension subframe includes: a body that transmits an impact load input from a vehicle front side toward a vehicle rear side; a fixed portion disposed near the body and fixed to a vehicle body; and a connection portion connecting the fixed portion to the body,
the connection portion comprises an upper plate member and a lower plate member,
a reinforcement member is mounted at a portion of the connection portion located between the fixed portion and the body, the reinforcement member connects the upper plate member and the lower plate member in a vehicle up-down direction,
the connection portion is provided with a fragile portion having a lower strength against a load in a vehicle front-rear direction than the body and the fixed portion,
the upper plate member and the lower plate member of the connection portion have a lower strength against a load in the vehicle front-rear direction than that of the body and the fixed portion,
a portion of the upper plate member and the lower plate member of the connection portion in a vehicle width direction that is located closer to the fixed portion relative to the reinforcement member and in a frontward of the fixed portion is not reinforced by the reinforcement member in order to form the fragile portion with a lower strength against a load in the vehicle front-rear direction than other portions in the connection portion, and
the reinforcement member and the fragile portion are provided at a same level in the vehicle up-down direction.