초록 ▼

A clamp is provided that has a pair of clamp bodies which each have an inner surface. The inner surfaces of each clamp body are oriented to face one another in a spaced parallel relationship. A pair of parallel scissors linkages are coupled to the device that operate to move the clamp bodies in para

A clamp is provided that has a pair of clamp bodies which each have an inner surface. The inner surfaces of each clamp body are oriented to face one another in a spaced parallel relationship. A pair of parallel scissors linkages are coupled to the device that operate to move the clamp bodies in parallel relation relative to one another. Each scissors linkage extends from one side surface of one clamp body to a corresponding side surface of the other clamp body. A threaded rod is coupled to the pair of scissors linkages between the clamp bodies and is oriented with its axis of rotation parallel to the inner surfaces of the clamp bodies. The threaded rod is operable to move the clamp bodies either towards one another or away from one another in spaced parallel relation by rotation of the rod. By operation of the rod, the device may be used as either a clamping device or an expansion device.

대표청구항 ▼

[ Having thus described the invention, what is claimed is:] [1.] A mechanical device, comprising:a first-clamp body having a first end, a second end, a first inner surface extending between said first end and said second end;a second clamp body having a first end, a second end, a second inner surfac

[ Having thus described the invention, what is claimed is:] [1.] A mechanical device, comprising:a first-clamp body having a first end, a second end, a first inner surface extending between said first end and said second end;a second clamp body having a first end, a second end, a second inner surface extending between said first end and said second end; said second clamp body oriented with respect to said first clamp body such that said second inner surface faces said first inner surface;a pair of scissors linkages coupling said first body and said second body in spaced, parallel relationship;a threaded rod having an axis of rotation that is oriented parallel to said first inner surface and said second inner surface, said rod being coupled between said pair of scissors linkages and between said first clamp body and said second clamp body, said threaded rod being operable to expand and contract said scissors linkages to move said first clamp body and said second clamp body relative to one another in spaced parallel orientation; anda bearing assembly and a threaded sleeve assembly coupled between said first scissors linkage and said second scissors linkage, said threaded rod being rotatingly disposed in said bearing assembly and threadedly disposed through said sleeve assembly,wherein said mechanical device can be used as a clamping device or an expansion device upon operation of said threaded rod.