Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
212 words
A vehicle suspension system including an A-type suspension lower arm having a front mounting portion pivotally attached to the body of a vehicle, a rear mounting portion pivotally attached to the vehicle body, and a ball-joint mounting portion disposed between said front and rear mounting portions, said suspension lower arm being adapted to be swung in the vertical direction around said front and rear mounting portions, said suspension lower arm comprising a first arm member and a second arm member respectively formed by bending a plate material and having an upper wall, with a rear edge, and a pair of side walls on the opposite sides of said upper wall, said first and second arm members each having a pair of horizontal flanges respectively formed at the lower edges of their side walls, said first arm member extending rearwardly from said front mounting portion, said second arm member extending forwardly from said rear mounting portion and being superimposed on and secured as by welding to said first arm member at a location near said ball-joint mounting portion said extension of said first arm member being secured to the horizontal flanges at the lower edges of said opposite side walls of said second arm member so as to provide a closed cross-sectional structure.
Claim 2
Dependent Claim
212 words
A vehicle suspension system including an A-type suspension lower arm having a front mounting portion pivotally attached to the body of a vehicle, a rear mounting portion pivotally attached to the vehicle body, and a ball-joint mounting portion disposed between said front and rear mounting portions, said suspension lower arm being adapted to be swung in the vertical direction around said front and rear mounting portions, said suspension lower arm comprising a first arm member and a second arm member respectively formed by bending a plate material and having an upper wall, with a rear edge, and a pair of side walls on the opposite sides of said upper wall, said first and second arm members each having a pair of horizontal flanges respectively formed at the lower edges of their side walls, said first arm member extending rearwardly from said front mounting portion, said second arm member extending forwardly from said rear mounting portion and being superimposed on and secured as by welding to said first arm member at a location near said ball-joint mounting portion said extension of said first arm member being secured to the horizontal flanges at the lower edges of said opposite side walls of said second arm member so as to provide a closed cross-sectional structure.
Claim 3
Dependent Claim
51 words
A vehicle suspension system as defined in claim 1 wherein said extension of said first arm member comprises an inclined wall bent downwardly from the rear edge of the upper wall of said first arm member and then horizontally to form a stepped extension in the form of a flat plate.
Claim 4
Dependent Claim
40 words
A vehicle suspension system as defined in claim 1, further comprising a shock absorber arranged vertically and connected at its upper end to the vehicle body and at its lower end to said upper wall of said second arm member.
Claim 5
Dependent Claim
23 words
A vehicle suspension system as defined in claim 1 wherein said first arm member is smaller in thickness than said second arm member.
Claim 6
Dependent Claim
41 words
A vehicle suspension system as defined in claim 4, further comprising a torsion bar extending from said suspension lower arm and being fixedly mounted thereon at a location upwardly offset from the axis of swinging motion of said suspension lower arm.
Claim 7
Dependent Claim
47 words
A vehicle suspension system as defined in claim 1 wherein said second arm member is disposed rearwardly of said first arm member, said suspension system further comprising a torsion bar mounted on said second arm member at its one end and extending therefrom in the rearward direction.
Claim 8
Dependent Claim
37 words
A vehicle suspension system as defined in claim 6 wherein said torsion bar is fixedly mounted on said second arm member at a location upwardly offset from the axis of swinging motion of said suspension lower arm.