KW-BFM-01 Chair Backrest Tester (Back pulling)
Product Description
| Field of application |
ANSI/BIFMA X5.1-2011 5 Backrest Strength Test - Static - Type I |
| ANSI/BIFMA X5.1-2011 6 Backrest Strength Test - Static - Type II and III |
| ANSI/BIFMA X5.1-2011 10 Tilt Mechanism Test - Cyclic |
| ANSI/BIFMA X5.1-2011 15 Backrest Durability Test - Cyclic - Type I |
| ANSI/BIFMA X5.1-2011 16 Backrest Durability Test - Cyclic - Type II and Type III |
| ANSI/BIFMA X5.1-2011 19 Footrest Static Load Test - Vertical |
| ANSI/BIFMA X5.1-2011 20 Footrest Durability Test - Vertical - Cyclic |
| Working Rationale |
1 Imitate human body sit in a chair and lean back action to test the back performance. |
| 2 Place 250lbs 16 dia sand bag in the seat,apply a force that is initially 90 degrees ± 10 degrees to the plane of the backrest. |
| 3 Record the testing cycle, evaluate the product performance. |
| Structure characteristics |
1 Multi-function testing equipment，out-force and traveling for selection. |
| 2 Through change the position of Pulley to change out-force direction of air cylinder. |
| 3 The form-fitting Device was fasten to backrest which was connect to the air cylinder by Ribbon. When the force was lost, the backrest will return to the original state. |
| 4 Precision manual pressure regulating valve ensure to get the stable and reliable out-force value which indicate in the digital display. |
| 5 L style Baffle plate+Lstyle Pressure plate fix the base；Manual screw to keep pressing. |
| 6 RPM disply can be adjusted. |
| Parameter |
1 More than 150kg out-force. |
| 2 More than 1000mm testing platform |
| 3 600mm Air cylinder traveling |
| 4 20 cycles per min for the max Air cylinder Cyclic rate |
| Test objects |
Tilt Mechanism test-Cyclic and Back Durability test |
| Control System |
Force control：Precision manual pressure regulating valve +SMC Precision pressure sensor+Digital display. |
| Force transmission：Sliding of the fixed pulley block. |
| Automatic control：Touch Screen+PLC,Power off memory and breakpoint stop function. |
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