Abstract: A floor brace has an upper end joined to a rear end of a cowl-to brace, is placed to incline toward a rear side of a vehicle, from the upper end toward a lower end, and has the lower end joined to a side wall of a floor tunnel. The rear end of the cowl-to brace and the upper end of the floor brace include overlap portions which overlap each other in a front-and-rear direction of the vehicle. A first bolt joint portion and a second bolt joint portion which are bolt-joined in a width direction of the vehicle are formed on each of the overlap portions of the cowl-to brace and the floor brace. A fragile portion that crosses between the first bolt joint portion and the second bolt joint portion is formed on one of the overlap portions of the cowl-to brace and the floor brace.

Abstract: The instrument panel reinforcement pipe extends in a width direction of a vehicle, and is formed in a circular tubular shape to support a steering column placed in a front-and-rear direction of the vehicle. The cowl-to brace extends in the front-and-rear direction of the vehicle, has a front end fixed on a cowl panel placed in a farther front side of the vehicle than the instrument panel reinforcement pipe, and includes a joint portion to be joined with the instrument panel reinforcement pipe, between the front end and a rear end. The floor brace extends in an up-and-down direction of the vehicle, and has a lower end fixed on a floor tunnel and an upper end fixed to the rear end of the cowl-to brace. The joint portion of the cowl-to brace is formed in a ring shape to be fitted and inserted into the instrument panel reinforcement pipe.

Abstract: A floor brace has an upper end joined to a rear end of a cowl-to brace, is placed to incline toward a rear side of a vehicle, from the upper end toward a lower end, and has the lower end joined to a side wall of a floor tunnel. The rear end of the cowl-to brace and the upper end of the floor brace include overlap portions which overlap each other in a front-and-rear direction of the vehicle. A first bolt joint portion and a second bolt joint portion which are bolt-joined in a width direction of the vehicle are formed on each of the overlap portions of the cowl-to brace and the floor brace. A fragile portion that crosses between the first bolt joint portion and the second bolt joint portion is formed on one of the overlap portions of the cowl-to brace and the floor brace.

Abstract: The instrument panel reinforcement pipe extends in a width direction of a vehicle, and is formed in a circular tubular shape to support a steering column placed in a front-and-rear direction of the vehicle. The cowl-to brace extends in the front-and-rear direction of the vehicle, has a front end fixed on a cowl panel placed in a farther front side of the vehicle than the instrument panel reinforcement pipe, and includes a joint portion to be joined with the instrument panel reinforcement pipe, between the front end and a rear end. The floor brace extends in an up-and-down direction of the vehicle, and has a lower end fixed on a floor tunnel and an upper end fixed to the rear end of the cowl-to brace. The joint portion of the cowl-to brace is formed in a ring shape to be fitted and inserted into the instrument panel reinforcement pipe.

Abstract: A front defroster nozzle apparatus includes a retainer, and a guide fin. The retainer includes an inlet opening, an outlet port, and a retainer base. The retainer base is branched into two forked elements (i.e., first and second branches having a first outlet opening and a first inlet end and a second outlet opening and a second inlet end, respectively). The outlet port involving the first and second outlet openings has an outlet width of 400 mm or less that is larger than an opening width of the inlet opening. The first and second outlet openings have first and second opening widths being larger than first and second opening widths of the first and second inlet ends. The retainer base includes a throttled portion whose flow-passage cross-sectional area accounts for from 80% or less to 60% or more of a flow-passage cross-sectional area of the inlet opening.

Abstract: A front defroster nozzle apparatus includes a retainer, and a guide fin. The retainer includes an inlet opening, an outlet port, and a retainer base. The retainer base is branched into two forked elements (i.e., first and second branches having a first outlet opening and a first inlet end and a second outlet opening and a second inlet end, respectively). The outlet port involving the first and second outlet openings has an outlet width of 400 mm or less that is larger than an opening width of the inlet opening. The first and second outlet openings have first and second opening widths being larger than first and second opening widths of the first and second inlet ends. The retainer base includes a throttled portion whose flow-passage cross-sectional area accounts for from 80% or less to 60% or more of a flow-passage cross-sectional area of the inlet opening.