Spring Arm Lift Mechanism
A steel mounting plate with a lift arm and a bank of extension springs that balance the weight of a wall bed on one side board.
Details
Category: Beds › Single-Level Beds › Bed Lift Mechanisms
By Huu Khanh Nguyen · Updated November 9, 2026
Parameters
| Name | Default | Unit |
|---|---|---|
| Bed Angle | 0 | ° |
| Springs Per Mechanism | 7 | |
| Arm Rest Angle | 74.7 | ° |
| Link Pivot X | -71.5 | mm |
| Link Pivot Z | 0.86 | mm |
| Tension Arm Shift X | jointX * (Math.cos((armRest + angle) * Math.PI / 180) - 1) + jointZ * Math.sin((armRest + angle) * Math.PI / 180) | mm |
| Tension Arm Shift Z | jointZ * (Math.cos((armRest + angle) * Math.PI / 180) - 1) - jointX * Math.sin((armRest + angle) * Math.PI / 180) | mm |
| Width | 498.2213988673907 | mm |
| Depth | 23 | mm |
| Height | 374.7923877630395 | mm |