IP Library Granted Patent US 12,414,256
Granted Patent B2
US 12,414,256 · App. 18/446,013 · Granted Sep 9, 2025

Cam latching device

Inventors: Chen An (Bergenfield, NJ); Yuan Zhang (North Bergen, NJ)
Assignee: ZT GROUP INT'L, INC.
H05K7/1489F16B2/18
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Quick Facts
Patent No.
US 12,414,256
App. No.
18/446,013
Granted
Sep 9, 2025
Kind
B2
Abstract

A cam latching device is provided for a computing system being installed in a rack. The cam latching device can include a cam and a locking mechanism. The cam includes a handle portion and an engagement portion. The cam includes a locking surface formed thereon. Rotation of the handle portion causes the engagement portion to rotate. The locking mechanism includes a push component and a lock. The push component abuts against a button disposed on a rail of the rack as the computing system translates along a longitudinal axis. When the push component slides against the button, the locking mechanism transitions from a locked configuration to an unlocked configuration. In the locked configuration, the lock abuts against the locking surface to prevent the rotation of the cam. In the unlocked configuration, the lock is retracted away from the locking surface so that the cam is rotatable.

Claims (38)

1. A cam latching device for a computing system being installed in a rack, the cam latching device comprising:

a cam including a handle portion and an engagement portion, the cam including a locking surface formed thereon, wherein rotation of the handle portion causes the engagement portion to rotate; and

a locking mechanism including a push component and a lock, the push component operable to abut against a button disposed on a rail of the rack as the computing system translates along a longitudinal axis to be installed in the rack, wherein when the push component slides against the button, the locking mechanism transitions from a locked configuration to an unlocked configuration,

wherein when the locking mechanism is in the locked configuration, the lock is operable to abut against the locking surface to prevent the rotation of the handle portion and the engagement portion, and

wherein when the locking mechanism is in the unlocked configuration, the lock is retracted away from the locking surface so that the handle portion and the engagement portion are rotatable.

2. The cam latching device of claim 1 , wherein the locking mechanism includes one or more springs, wherein when the push component slides against the button to transition the locking mechanism to the unlocked configuration, the springs are compressed.

3. The cam latching device of claim 2 , wherein when the push component does not contact the button, the one or more springs are not compressed and maintain the position of the lock against the locking surface of the cam.

4. The cam latching device of claim 2 , wherein the locking mechanism includes a body coupled with the push component and the lock, wherein the body is configured to receive the one or more springs.

5. The cam latching device of claim 4 , wherein when the push component slides against the button to transition the locking mechanism to the unlocked configuration, the body pushes against the one or more springs to compress the one or more springs and retracts the lock from the locking surface.

6. The cam latching device of claim 1 , wherein when the handle portion is rotated, the engagement portion is rotated to engage with a guide to maintain the position of the computing system in the rack.

7. The cam latching device of claim 1 , wherein the locking mechanism is only transitioned to the unlocked configuration when the computing system is fully received into the rack.

8. A computing system operable to be installed in a rack, the computing system comprising:

a chassis; and

a cam latching device coupled with the chassis, the cam latching device including:

a cam including a handle portion and an engagement portion, the cam including a locking surface formed thereon, wherein rotation of the handle portion causes the engagement portion to rotate; and

a locking mechanism including a push component and a lock, the push component operable to abut against a button disposed on a rail of the rack as the computing system translates along a longitudinal axis to be installed in the rack, wherein when the push component slides against the button, the locking mechanism transitions from a locked configuration to an unlocked configuration,

wherein when the locking mechanism is in the locked configuration, the lock is operable to abut against the locking surface to prevent the rotation of the handle portion and the engagement portion, and

wherein when the locking mechanism is in the unlocked configuration, the lock is retracted away from the locking surface so that the handle portion and the engagement portion are rotatable.

9. The computing system of claim 8 , wherein the locking mechanism includes one or more springs, wherein when the push component slides against the button to transition the locking mechanism to the unlocked configuration, the springs are compressed.

10. The computing system of claim 9 , wherein when the push component does not contact the button, the one or more springs are not compressed and maintain the position of the lock against the locking surface of the cam.

11. The computing system of claim 9 , wherein the locking mechanism includes a body coupled with the push component and the lock, wherein the body is configured to receive the one or more springs.

12. The computing system of claim 11 , wherein when the push component slides against the button to transition the locking mechanism to the unlocked configuration, the body pushes against the one or more springs to compress the one or more springs and retracts the lock from the locking surface.

13. The computing system of claim 8 , wherein when the handle portion is rotated, the engagement portion is rotated to engage with a guide disposed on the rack to maintain the position of the computing system in the rack.

14. The computing system of claim 13 , wherein when the engagement portion is engaged with the guide, the handle portion abuts against the chassis.

15. The computing system of claim 8 , wherein the locking mechanism is only transitioned to the unlocked configuration when the chassis is fully received into the rack.

16. The computing system of claim 8 , wherein the handle portion is operable to receive a push force from a user to translate the chassis along the longitudinal axis into the rack.

17. A server system comprising:

a rack including a plurality of rails and a button disposed on at least one of the rails;

a computing system operable to be installed into the rack, the computing system including:

a chassis operable to be received by the rails; and

a cam latching device coupled with the chassis, the cam latching device including:

a cam including a handle portion and an engagement portion, the cam including a locking surface formed thereon, wherein rotation of the handle portion causes the engagement portion to rotate; and

a locking mechanism including a push component and a lock, the push component operable to abut against the button as the computing system translates along a longitudinal axis to be installed in the rack, wherein when the push component slides against the button, the locking mechanism transitions from a locked configuration to an unlocked configuration,

wherein when the locking mechanism is in the locked configuration, the lock is operable to abut against the locking surface to prevent the rotation of the handle portion and the engagement portion, and

wherein when the locking mechanism is in the unlocked configuration, the lock is retracted away from the locking surface so that the handle portion and the engagement portion are rotatable.

18. The server system of claim 17 , wherein the locking mechanism includes one or more springs, wherein when the push component slides against the button to transition the locking mechanism to the unlocked configuration, the springs are compressed.

19. The server system of claim 18 , wherein when the push component does not contact the button, the one or more springs are not compressed and maintain the position of the lock against the locking surface of the cam.

20. The server system of claim 17 , wherein when the handle portion is rotated, the engagement portion is rotated to engage with a guide disposed on the rack to maintain the position of the computing system in the rack.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 21, 2025
From: ZT GROUP INT’L, INC. DBA ZT SYSTEMS
To: AMD DESIGN, LLC
Reel/Frame 072625/0193 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2023
From: AN, CHEN; ZHANG, YUAN
To: ZT GROUP INT'L, INC. DBA ZT SYSTEMS
Reel/Frame 064557/0527 →
Continuity (1)
Related Publication 20250056752A1 · Feb 13, 2025
References Cited (23)
US 6220879B1 · Ulrich · 2001 [cited by examiner]
US 6549424B1 · Beseth · 2003 [cited by examiner]
US 6790068B2 · Westphall · 2004 [cited by examiner]
US 7245499B2 · Stahl · 2007 [cited by examiner]
US 7292457B2 · DeNies · 2007 [cited by examiner]
US 8054638B2 · Graybill · 2011 [cited by examiner]
US 8289707B2 · Liao · 2012 [cited by examiner]
US 8416563B2 · Hou · 2013 [cited by examiner]
US 8605440B2 · Gong · 2013 [cited by examiner]
US 9125318B2 · French, Jr. · 2015 [cited by examiner]
US 9999154B2 · Frank · 2018 [cited by examiner]
US 10080300B1 · Olesiewicz · 2018 [cited by examiner]
US 10165709B2 · Schmidtke · 2018 [cited by examiner]
US 10383248B1 · Chen · 2019 [cited by examiner]
US 10396497B1 · Bame · 2019 [cited by examiner]
US 10827641B1 · Shen · 2020 [cited by examiner]
US 11160190B1 · Leung · 2021 [cited by examiner]
US 11441329B2 · Tseng · 2022 [cited by examiner]
US 12207440B2 · An · 2025 [cited by examiner]
US 20040264146A1 · Kerrigan · 2004 [cited by examiner]
US 20120127658A1 · Hartman · 2012 [cited by examiner]
US 20130107424A1 · Thomas · 2013 [cited by examiner]
US 20160157610A1 · Chen · 2016 [cited by examiner]