Rail Profile Groove Locking for Easy Front Attachment

The joint head is designed with a cylindrical shape featuring a circular arc circumferential surface that matches the circular arc receiving groove. This curved geometry enables the joint head to be inserted frontally without lateral sliding, eliminating the space requirement and insertion effort while maintaining secure form-fitting connection through the curved surfaces.

Instead of requiring lateral sliding motion for insertion as in conventional clip connections, the invention inverts the approach by enabling frontal insertion. The circular arc geometry allows the holding element to be inserted directly from the front, reversing the traditional insertion direction and eliminating the need for lateral space.

The connection system incorporates a swivel mechanism that allows dynamic adjustment. The holding element can swivel about a swivel axis, enabling it to adapt to applied forces. When force is applied from below, the holding element can swivel to accommodate the load without disengaging, preventing accidental release while maintaining secure fastening for heavy objects.

The system changes the orientation parameter of the holding element through swiveling. By allowing rotation about the swivel axis, the holding element can adjust its angular position in response to applied forces, transforming from a rigid fixed-orientation connection to a flexible adaptive connection that prevents accidental release.

The circular arc geometry of both the receiving groove and joint head circumferential surface creates a self-locking effect during swivel movement. As the joint head swivels, the curved surfaces maintain continuous contact, and the geometry naturally prevents disengagement while allowing rotation, providing secure locking without complex additional mechanisms.

The locking function is achieved through the inherent geometry of the circular arc surfaces rather than through separate locking components. The swivel movement itself, constrained by the curved surfaces, provides the locking action, allowing the connection to secure itself automatically during the swiveling process without requiring external locking mechanisms.