US 12,220,055 B2
Slide rail assembly
Ken-Ching Chen, Kaohsiung (TW); Shun-Ho Yang, Kaohsiung (TW); Wei-Chen Chang, Kaohsiung (TW); and Chun-Chiang Wang, Kaohsiung (TW)
Assigned to KING SLIDE WORKS CO., LTD., Kaohsiung (TW); and KING SLIDE TECHNOLOGY CO., LTD., Kaohsiung (TW)
Filed by KING SLIDE WORKS CO., LTD., Kaohsiung (TW); and KING SLIDE TECHNOLOGY CO., LTD., Kaohsiung (TW)
Filed on May 17, 2023, as Appl. No. 18/198,293.
Claims priority of application No. 111150804 (TW), filed on Dec. 28, 2022.
Prior Publication US 2024/0215723 A1, Jul. 4, 2024
Int. Cl. A47B 88/49 (2017.01); A47B 88/447 (2017.01)
CPC A47B 88/49 (2017.01) [A47B 88/447 (2017.01); A47B 2210/0067 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A slide rail assembly comprising:
a supporting frame;
a first rail movable relative to the supporting frame;
a second rail movable relative to the first rail; and
a third rail movable relative to the second rail;
wherein when the slide rail assembly is in an extended state, the first rail is located at a first predetermined position relative to the supporting frame, the second rail is located at an extended position relative to the first rail, the third rail is located at an opened position relative to the second rail and a rear rail section of the third rail is overlapped with a front rail section of the first rail;
wherein a blocking structure and a positioning structure are arranged on the supporting frame, a blocking feature and a positioning feature are arranged on the first rail, the second rail is movably mounted between the first rail and the third rail, the slide rail assembly further comprises a first working member and a second working member, the first working member is movably mounted to the first rail and switchable between a first state and a second state, the second working member is movably mounted to the first rail and switchable between a third state and a fourth state, when the first rail is located at the first predetermined position relative to the supporting frame, the blocking structure blocks the first working member in the first state for preventing the first rail from moving along a retracting direction from the first predetermined position, and when the first rail is located at a second predetermined position relative to the supporting frame, the second working member in the third state engages with the positioning structure for preventing the first rail from moving along an opening direction from the second predetermined direction.