Glove Box Opening Structure With Gear-Linked Locking Rods

The patent employs a dynamic linkage mechanism where the locking rod is connected to the handle through a rotating arm and pivot points. As the handle rotates, the locking rod dynamically changes its position and orientation, allowing it to travel a longer effective distance along its guide groove without increasing the overall glove box volume. This dynamic motion transformation enables the locking rod to be pulled further by the user's handle operation, reducing the force needed to overcome friction and open the storage compartment.

The invention introduces a multi-dimensional motion path for the locking rod by incorporating a guide groove that extends in multiple directions rather than a simple linear path. The locking rod moves along this complex three-dimensional groove while being actuated by the handle's rotation, effectively converting rotational motion into extended linear displacement. This dimensional transformation allows the locking rod to achieve a longer moving distance within the constrained volume of the glove box, improving ease of operation without increasing external dimensions.

The dynamic linkage mechanism creates a mechanical advantage throughout the motion sequence. As the handle rotates and the locking rod moves along its guide groove, the changing geometry of the linkage system dynamically adjusts the force transmission ratio. This allows the user's input force to be amplified at critical points in the motion, overcoming the increasing friction force that occurs as the locking rod travels further along its path.

The patent introduces intermediate mechanical elements including the rotating arm, pivot points, and guide groove structure that act as mediators between the user's handle operation and the locking rod. These intermediary components transform and transmit force through a sequence of mechanical interactions, allowing the user's effort to be distributed and amplified across multiple connection points, thereby overcoming the friction force generated during the extended locking rod movement.

The invention uses a dynamic four-bar linkage mechanism where the relationship between handle rotation distance and locking rod moving distance is automatically adjusted through the geometry of the rotating arms and pivot points. As the handle rotates through a fixed angle, the linkage dynamically transforms this rotational motion into the appropriate linear displacement of the locking rod, eliminating the need for the user to rotate the handle through excessive angles while maintaining ease of operation.

The patent employs parameter changes in the linkage geometry to optimize the motion transformation. By carefully selecting the lengths and positions of the rotating arms and pivot points, the mechanism transforms a relatively small handle rotation angle into a larger locking rod displacement. This parameter optimization allows the system to achieve the desired ease of operation without requiring excessive handle rotation, thereby avoiding increased device complexity.