US 10,118,643 B2Granted

Front sub-frame structure

AssigneeMazda Motor Corporation

InventorsKatsuyuki Komiya, Masaaki Tanaka

Life of this patent

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Abstract

To reinforce a front sub-frame in such a manner that the front sub-frame having a trapezoidal shape formed by a cross member and left and right side members extending to one side is not deformed to a rhombus shape at the one side, a front sub-frame structure includes: a rear cross member (74) coupling arm supporting parts (71, 71) supported on left and right side members (6, 6); tilt members (75) coupling left and right intermediate portions of the rear cross member (74) to rear vehicle attachment parts (M3) of the side members (6); a brace (80) coupling the left and right arm supporting parts (71, 71) to the rear vehicle attachment parts (M3); and intermediate coupling parts (91) coupling the brace (80) to intermediate portions of the tilt members (75).

Claims3

Dependent claims

An automobile front sub-frame structure including a pair of left and right front side frames extending from a cabin front face toward a vehicle front, and a front sub-frame disposed below the front side frame and supporting a front suspension device, the front sub-frame structure comprising:

a cross member coupling arm supporting parts supported by the left and right side members of the front sub-frame;
tilt members coupling laterally separated left and right intermediate portions of the cross member to longitudinally one-side vehicle attachment parts of the side members, the longitudinally one-side vehicle attachment parts being disposed at one longitudinal side of the side members;
a brace coupling the left and right arm supporting parts to the longitudinally one-side vehicle attachment parts diagonally disposed to the arm supporting parts;
and
intermediate coupling parts coupling the brace to intermediate portions of the tilt members.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/761,176Filed 1 Nov 2016
Priority: JP 2015-22113111 Nov 2015
Published: US 2018/0257710 A113 Sep 2018
Granted: 6 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B62D 21/11
Understructures, i.e. chassis frame on which a vehicle body may be mounted: with resilient means for suspension , e.g. of wheels or engine;…
B60K 5/12
Arrangement or mounting of internal-combustion or jet-propulsion units: arrangement of engine supports
B62D 21/06
Understructures, i.e. chassis frame on which a vehicle body may be mounted: of X-shaped or fork-shaped construction, i.e. having members which…
B62D 25/085
Engine compartments: front-end modules

Family

US 2018/0257710 A1Pre-grant publication · published 13 Sep 2018
US 10,118,643 B2This patent

From the US filing history. Foreign family members aren’t listed.

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