Power unit support structure
AssigneeHonda Motor Co., Ltd.
InventorsHiroshi Okuyama, Kazuo Yamamoto, Masashi Koyanagi, Hiroaki Kase, Takeshi Kobayashi
Life of this patent
Estimating the term…
Abstract
A power unit support structure to minimize vibration of a vehicle body frame. A mount bracket disposed on a vehicle body frame supports a power unit that includes a longitudinal engine. Specifically, the mount bracket is disposed substantially at a center in a vehicle width direction between a pair of right and left center side frames that form part of the vehicle body frame and extend in a vehicle fore-aft direction. The center side frames are connected together with cross members. The mount bracket is mounted to the cross members via a connection member as a vibration damping material. The power unit is then mounted to the mount bracket via a subframe.
Claims13
A power unit support structure comprising:
- a vehicle body frame including front and rear cross members extending between right and left main frames which extend in a vehicle fore and aft direction;
- a power unit support subframe upon which a power unit including a longitudinal engine is mounted;
- a front support bracket and a rear support bracket which are directly attached, respectively, to the front and rear cross members in order to mount the power unit support frame onto the vehicle body frame,
- wherein the front and rear support brackets are disposed substantially at a center in a vehicle width direction between the right and left main frames,
- wherein the power unit support subframe is supported on the vehicle body only in the vehicle fore and aft direction, and
- wherein the power unit support subframe is rectangular-shaped and includes front and rear lateral extending members and right and left longitudinal extending members,
- the power unit support structure further comprising:
- a front extension portion projecting forwardly from a central portion of the front lateral extending member beyond the power unit, and
- a rear extension portion projecting rearwardly from a central portion of the rear lateral extending member beyond the power unit,
- wherein the front support bracket connects the front extension portion to a central portion of the front cross member, and the rear support bracket connects the rear extension portion to a central portion of the rear cross member.
A power unit support structure having two support brackets directly attached to a vehicle body frame, the two support brackets respectively supporting a front and rear side of a power unit having a crankshaft extending in a vehicle fore and aft direction,
- wherein each of the two support brackets is disposed substantially midway between a pair of right and left main frames forming part of the vehicle body frame and extending in the vehicle fore and aft direction,
- wherein one of the support brackets is disposed at a front of the vehicle body, and the other of the support brackets is disposed at a rear of the vehicle body, and a center of gravity of the power unit is disposed at a point offset to one lateral side of a line extending in a longitudinal direction of the vehicle body frame and connecting the two support brackets at the front and rear of the power unit.
Dependencies are inferred from the claim text.