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US 6,616,126 B1Granted
Strut string compressor tool and method
AssigneeSPX Corporation
InventorsJose Barrios, James Jirele
Life of this patent
Estimating the term…
Abstract
A chartered type MacPherson strut spring compressor having a pivot adapter to permit force from the head of a forcing screw to the open surface of a trunion.
Claims18
An apparatus for compressing a coil spring comprising:
- a hinge assembly;
- a first pair of arms each having one end connected to the hinge assembly and a free end;
- a second pair of arms each having one end connected to the hinge assembly and a free end;
- a first trunion connecting the first pair of arms to each other and having a first bore therethrough;
- a second trunion connecting the second pair of hinge arms to each other and having a second bore therethrough;
- a forcing screw having a head portion, and a body portion passing through the first bore in the first trunion and threadably engaging with the second bore in the second trunion;
- and
- an adapter having a first surface disposed to receive force from the head of the forcing screw and having a curved surface that presses against the first trunion, wherein said curved surface has a cylindrical shape.
5 more elements
An apparatus for compressing a coil spring comprising:
- a first pair of arms;
- a second pair of arms;
- hinging means for hingedly connecting the first pair of arms to the second pair of arms;
- first connecting means for connecting the first pair of arms to each other;
- second connecting means for connecting the second pair of arms to each other;
- forcing means passing through a bore in the first connecting means and engaging the second connecting means for applying a compressive force to force the first and second connecting means towards each other;
- force transmitting means disposed to receive the compressive force from the forcing means that transmits the compressive force to the first connecting means;
- and
- pivoting means for connecting the force transmitting means to pivot relative to the first connecting means, said pivoting means further comprising a curved surface on the bore transmitting means wherein said curved surface has a cylindrical shape.
6 more elements
A method of compressing a respective pair of first arms towards a respective pair of pivotally connected second arms via a first trunion connecting the first arms and a second trunion connecting the second arms, comprising the steps of:
- providing a forcing screw that passes through a bore in the first trunion and threadably engages the second trunion;
- providing a pivot adapter between the head of a forcing screw and a surface of the first trunion with a curved cylindrical surface of the pivot adapter bearing on the first trunion;
- and
- rotating the forcing screw to provide a force through the adapter to the first trunion through contact of the curved surface of the adapter with a surface on the first trunion.
1 more element
Dependencies are inferred from the claim text.