Dial cam latch

US11852186B1 · kind B1 · utility

Assignee

• ZT GROUP INT'L, INC. · US

Inventors

• Chen An · Bergenfield, US
• Maheshkumar Varrey · Secaucus, US
• Zichun Song · Tangshan City, CN

Key dates

• Filing date: Jun 3, 2020
• Grant date: Dec 26, 2023
• Expiry date: Jul 25, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16B5/06
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An apparatus provides a latch with a rotary dial and a leaf spring with teeth that extend from a frame into an engaging position. Inward axial movement of the dial causes the dial to deform the leaf spring and the teeth to extend into the engaging position. In the engaging position, the dial supports the teeth and resists forces that might otherwise cause the teeth to unlatch. In the engaging position, a catch in a track on the dial engages a pin of the frame to maintain the engaging position. From the engaging position, a rotation of the dial unseats the catch and allows the dial to move axially outward and the teeth to recede into the frame.