Micro motion Study
Rizal Technological University
College of Engineering and industrial Technology
Boni Avenue, City of Mandaluyong
“Motion Study and
Micro-motion Study Equipment”
Artiga, Odiboy R.
Espiritu, Robert C.
Course/Year: BSIE 3rd year
Subject: Methods Engineering
Day/Time: Monday/Thursday 10:30am-12:00pm
Instructor: Engr. Nestor Japis
Motion study involves the analysis of the basic hand, arm, and body movements of workers as they perform work.
Work design involves the methods and motions used to perform a task.
This design includes the workplace layout and environment. the tooling and equipment (e.g., work holders, fixtures, hand tools, portable power tools, and machine tools). work design is the design of the work system.
Basic Motion Elements
Any manual task is composed of work elements, and the work elements can be further subdivided into basic motion elements. We will define basic motion elements and how they can be used to analyze work
Frank Gilbreth was the first to catalog (list) the basic motion elements.
Therbligs are the basic building blocks of virtually all manual work performed at a single workplace and consisting primarily of hand motions. – A list of Gilbreth’s 17 therbligs is presented along with the letter symbol used for each as well as a brief description.
With some modification, these basic motion elements are used today in a number of work measurement systems, such as Methods - Time Measurement (MTM) and the Maynard Operation Sequence Technique (MOST).
Methods analysis at the therblig level seeks to eliminate or reduce ineffective therbligs.
Some of the motion element names and definitions have been revised
Classification of Therbligs
Effective therbligs: Transport empty Grasp Transport loaded Release load Use Assemble Disassemble Inspect Rest
Ineffective therbligs: Hold Pre-position Position Search Select Plan Unavoidable delay Avoidable delay
Motion Picture cameras
College of Engineering and industrial Technology
Boni Avenue, City of Mandaluyong
“Motion Study and
Micro-motion Study Equipment”
Artiga, Odiboy R.
Espiritu, Robert C.
Course/Year: BSIE 3rd year
Subject: Methods Engineering
Day/Time: Monday/Thursday 10:30am-12:00pm
Instructor: Engr. Nestor Japis
Motion study involves the analysis of the basic hand, arm, and body movements of workers as they perform work.
Work design involves the methods and motions used to perform a task.
This design includes the workplace layout and environment. the tooling and equipment (e.g., work holders, fixtures, hand tools, portable power tools, and machine tools). work design is the design of the work system.
Basic Motion Elements
Any manual task is composed of work elements, and the work elements can be further subdivided into basic motion elements. We will define basic motion elements and how they can be used to analyze work
Frank Gilbreth was the first to catalog (list) the basic motion elements.
Therbligs are the basic building blocks of virtually all manual work performed at a single workplace and consisting primarily of hand motions. – A list of Gilbreth’s 17 therbligs is presented along with the letter symbol used for each as well as a brief description.
With some modification, these basic motion elements are used today in a number of work measurement systems, such as Methods - Time Measurement (MTM) and the Maynard Operation Sequence Technique (MOST).
Methods analysis at the therblig level seeks to eliminate or reduce ineffective therbligs.
Some of the motion element names and definitions have been revised
Classification of Therbligs
Effective therbligs: Transport empty Grasp Transport loaded Release load Use Assemble Disassemble Inspect Rest
Ineffective therbligs: Hold Pre-position Position Search Select Plan Unavoidable delay Avoidable delay
Motion Picture cameras