| 摘要 |
The invention relates to a muff coupling intended for vehicle couplers of the type that comprises two components (2, 3) formed with ring-shaped flanges (13), as well as a muff (8) consisting of at least two arch parts (9) tightenable against each other, each of which separately has an inner flute (15) formed between two inwardly turned bulges (14), which flute is delimited by obliquely inclined side surfaces in order to, upon radial tightening of the arch parts against each other, be pressed against analogously obliquely inclined shoulder surfaces on said flanges (13) and thereby, by wedge action, transfer axial component forces to the same with the purpose of pressing the ends of the components (2, 3) in close contact against each other. According to the invention, the arch parts (9) are formed with double sets of bulges (14, 14') for co-operation with double flanges (13, 13') on the respective component (2, 3), whereby forces that are transferred between the components via the muff are distributed to a plurality of axially spaced-apart pairs of contact surfaces in an axial train of forces near the outside of the components.
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