Basic motions
The Omegas
Basic Motions and Design of a time study
BASIC MOTIONS (THERBLIGS)
|Therblig |Color |Symbol/Icon |Description|
| | | |The Search motion starts when the eyes and/or hand start to seek the |
|Search|Black | |object needed and ends just as the object is located. |
|Find |Gray |[pic] |Find can beconsidered a demarcation line, denoting the end of the Search|
| | | |cycle.|
|Select |Light Gray |[pic] |It is used to indicate locating an object from a group of similar |
| | ||objects. |
| | |[pic] ||
|Grasp |Lake Red | |Grasp is when the worker's hand grabs the object. |
| |Gold Ochre|[pic] |The retention of an object after it has been grasped, [with] no movement |
|Hold | | |of the object taking place.|
| | | |Begins after Grasp where the hand is doing "work" by moving the weight of|
|Transport|Green | |an object, and ends when just before the Release Load, Use or Assemble |
|Loaded | | |Therbligs....
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