RCA for Back Brace

RCA

As shown in the image, the damaged area is located on the carbon fiber tube of the back support. The root cause is the loosening of the circular clamp on the carbon tube, which allows the tube to rotate freely. This rotation causes the connected back support head to rotate along with it, ultimately resulting in the bent back support head observed on-site.

Why does the bending of the back support head lead to the fracture of the carbon tube? This involves the deployment logic of the back support. Under normal conditions, the back support should fully extend and rest securely against the rack. However, when the back support head is bent, it may mistakenly press against the storage bin instead. Since the deployment of the back support is position-limited rather than force-sensitive, it can only detect whether it has reached a predefined position—it cannot distinguish what it is actually contacting.

If the back support head ends up supporting against a storage bin and the fork continues to move downward for a picking operation, the carbon fiber tube will be subjected to significant vertical pressure. This can lead to damage or even fracture of the tube.

We also pointed out that the carbon fiber tube surface is relatively smooth, making it difficult to achieve effective fixation with just the circular clamp. This increases the risk of the carbon tube and back support head rotating together again.

Improvement Plan:
We’ve implemented a new bracing design that includes surface sandblasting at the connection between the carbon rod and the rotational head. This enhancement significantly improves connection stability and durability.

Order Placement Info:
ERP ID: 9.03.01.001697
Part Name: A42T-L.4.3-00A Support Rod Slider Assembly (M5)