1:25
Four-bar linkage with manual force
The manual force element shows in real time how the required manual force changes when you move the application point, a bearing or the center of gravity.
Example · Furniture · ASOMmini
Kitchen cabinet flap with spring support
Tension springs support a kitchen cabinet flap with a six-bar hinge. The example shows how you set the springs in ASOMmini for different flap weights.
2:41
The task
Apply force first, then the flap opens by itself
The flap opens by 110° and is supported on both sides by tension springs with adjustable attachment points. The manual force curve has to suit flap weights from 2 to 8 kg: at first, force is needed to open the flap, and from an opening angle of about 15–20°, the flap opens by itself all the way.
What ASOM shows here
- One element represents both tension springs. Its characteristic curve shows the stroke range in use in green.
- The manual force element shows the force required at the flap. The drive rotates at 1°/s – so you read the diagrams directly as a function of the opening angle.
- For each weight from 2 to 8 kg, the attachment point of the springs is moved until the manual force curve is right.
Your benefits
Set the springs before a prototype is built
You see the manual force curve over the entire opening movement and can tell exactly from which angle the flap opens by itself.
Fewer trials on prototypes
You find the right attachment point in the model, not by rehooking the springs on the prototype. More on force calculation
Define the adjustment range
You can see which attachment points you need to provide for light and heavy flaps.
With your drawings
The cabinet and flap enter the model as DXF drawings, and parts of them move along – the design is immediately easy to understand.
More examples
All example videos
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