Structure of mechanism |
| Function |
The motion device described in the patent relates to an excavator bucket with a gripper that work together as a pair of pliers. The motion device is based on two linkages - one with 6 links and 7 joints and the another one with 4 links and 4 joints. The description of the mechanism is based on the linkage with 6 links. Both parts are driven by a cylinder. The degree of freedom of each mechanism is F = 1 respectively. |
| Dimension of mechanism |
planar |
| Number of links |
6 |
| Drive movement |
Rectilinear translation |
| Output movement |
Rotation |
| Degree of freedom |
1 |
| Fundamental mechanism |
 Link containing mechanism |
| Number of inputs |
1 |
| Number of followers |
1 |
| Revolution ability |
no |
| Revolution ability of input link |
no |
| Relative position between drive and output |
orthogonal intersecting |
| |
Guidance function |
| Direction of the path |
reversed direction |
| Orientation of output link |
general |
| Trace of a dedicated point on follower |
 Open trace
 Circular trace |
| Dimension of mechanism |
planar |
| Input reference |
yes |
| Progress of orientation respecting output link |
oscillating: 100°<=x<180° |
| |
Transfer function |
| Output motion |
oscillating: 100°<=x<180° |
| Transfer function |
 identical direction
 partially in- / decreased transfer velocity |
| |
Application |
| Examples of application |
Construction machinery |
| |
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