Power train supporting structure for vehicle
AssigneeMazda Motor Corporation
InventorYousuke Iwasaki
Life of this patent
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Abstract
A power train supporting structure for a vehicle is provided with: a power train including a transversely disposed engine, a transmission, and a transfer; and a rear mount bracket which connects a rear portion of the power train and a suspension cross member. A front portion of the rear mount bracket is connected to the transfer at a position which is below a drive shaft, and is in a vehicle up-down directional area that is an overlapping of the transmission and the transfer in view of the vehicle width direction.
Claims20
A power train supporting structure for a vehicle, comprising:
- a power train including
- a transversely disposed engine whose rotational axis is aligned with a vehicle width direction,
- a transmission which transmits an output of the transversely disposed engine to front wheels via a drive shaft, and
- a transfer which transmits an output of the transmission to rear wheels via a propeller shaft;
- and
- a rear mount bracket which connects a rear portion of the power train with a vehicle body, and which swingably and resiliently supports the power train, wherein
- a front portion of the rear mount bracket is connected to the transfer at a position which is below the drive shaft and is in a vehicle up-down directional area that is an overlapping of the transmission and the transfer in view of the vehicle width direction,
- the transfer includes a transfer body, and an intermediate bracket which connects the front portion of the rear mount bracket with the transfer body, and
- at least one common fastener fastens the transmission, the transfer body and the intermediate bracket to each other.
The power train supporting structure for a vehicle according to claim wherein
- the rear mount bracket includes a rear mount bush at a rear portion thereof, the rear mount bush having an elasticity and including a bolt insertion hole for passing a connection bolt engageable with the vehicle body along the vehicle up-down direction.
The power train supporting structure according to claim wherein
- the transfer and the transmission are fastened with each other at a plurality of positions,
- the intermediate bracket includes at least one bracket insertion hole allowing a fastening bolt for the connection of the transfer body to pass therethrough,
- the transfer body includes at least one transfer insertion hole for allowing the fastening bolt to pass therethrough,
- the transmission includes a boss portion which meets the bracket insertion hole of the intermediate bracket and the transfer insertion hole of the transfer body to engage with the fastening bolt, and
- the bracket insertion holy:
- of the intermediate bracket, the transfer insertion hole of the transfer body, the boss portion of the transmission, and the fastening bolt constitute the at least one common fastener.
A power train supporting structure for a vehicle, comprising:
- a power train including
- a transversely disposed engine whose rotational axis is aligned with a vehicle width direction;
- a transmission which transmits an output of the transversely disposed engine to front wheels via a drive shaft;
- and
- a transfer having a large diameter portion and a small diameter portion whose diameter is less than that of the large diameter portion;
- the small diameter portion being in front of the large diameter portion in a vehicle front-rear direction, and the transfer being configured to transmit an output of the transmission to rear wheels via a propeller shaft;
- a cross member extending in the vehicle width direction on a vehicle rear side of the drive shaft in the vehicle front-rear direction, the cross member having a groove portion which extends in the vehicle width direction and is recessed toward a vehicle lower side below the small diameter portion of the transfer in a vehicle up-down direction and in front of the large diameter portion of the transfer in the vehicle front-rear direction;
- and
- a steering gear box to be connected with the front wheels in such a manner that the front wheels are steerable, the steering gear box being below the small diameter portion of the transfer in the vehicle up-down direction and in front of the large diameter portion of the transfer in the vehicle front-rear direction, and being disposed in the groove portion.
Dependencies are inferred from the claim text.