Patent ID: 8904848

Claim:
A pressing device for press-joining a tubular or hose-shaped workpiece with a fitting and/or a ferrule, comprising: a plurality of inner pressing members, each said inner pressing member having an inner surface and first and second outer surface portions, said outer surface portions being straight when viewed in plan view and being angled relative to each other at an angle of less than 180°, said inner pressing members arranged circumferentially next to each other and connected to each other to form an inner linkage such that each said first outer surface portion is adjacent to the second outer surface portion of the adjacent inner pressing member; at least three outer pressing members, each said outer pressing member having first and second inner surface portions and an outer surface, said inner surface portions of said outer pressing member being straight when viewed in plan view and being angled relative to each other at an angle of less than 180°, said outer pressing members arranged circumferentially next to each other and connected to each other to form an outer linkage such that each said first inner surface portion is adjacent to the second inner surface portion of the adjacent outer pressing member; said inner linkage seated within said outer linkage and generally forming a circle to define a circumference, said outer surface portions of said inner pressing members and said inner surface portions of said outer pressing members forming interacting surface portions, said inner and outer pressing members engaging each other in the radial direction along said interacting surface portions, wherein a pressing force is transmitted through said engagement of said interacting surface portions, and wherein said inner and outer pressing members can move relative to each other in the circumferential direction.