Patent ID: 11864651
Assignee: KNAPE & VOGT MANUFACTURING COMPANY
Field: Furniture, games (Other fields)
Classification: CPC A  E | IPC A

Claim 14:
15. A closing device, for use in a drawer slide having a first drawer slide member that is slidably coupled to a second drawer slide member, the closing device comprising:
a base connectable to the second drawer slide member;
a rack body slidably coupled to the base and having an elongated rack;
a catch pivotally coupled to the rack body;
a first biasing member connected at a first end to the base and at an opposed second end to the rack body, and biasing the rack body to move rearward relative to the base;
the catch having a locked position at a front of the base, and an unlocked position wherein the catch is movable along the base while being biased toward the rear of the base;
a gear pivotally coupled to the base in a location along the first biasing member and engaging the elongated rack of the rack body only during a portion of the movement of the rack body relative to the base;
a second biasing member having a first end coupled to the base and an opposed second end coupled to the gear, and biasing the gear to pivot and thereby drive the rack body rearward relative to the base during the portion of movement of the rack body while the gear engages the elongated rack;
a latch connectable to the first drawer slide member and configured to be releasably engaged by the catch;
wherein the first biasing member provides a substantially linear biasing force upon movement of the rack body relative to the base, and the elongated rack and gear engagement provides a mechanical advantage that alters the biasing force applied to the rack body by the second biasing member in a non-linear manner upon movement of the rack body relative to the base while the gear is engaged with the elongated rack.