System for securing a computing system in a host infrastructure

Patent metadata

Field	Value
Publication number	US-11729934-B2
Application number	US-202117249449-A
Country	US
Kind code	B2
Filing date	Mar 2, 2021
Priority date	Mar 2, 2021
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

Examples described herein relate to a securing sub-system. The securing sub-system includes a lever and a cam assembly engaged with the lever. The cam assembly is movable due to a pivotal movement of the lever and includes a cam body, a cantilevered arm, and a load support member. The cantilevered arm extends from the cam body and is deformable when the cantilevered arm contacts a restrictive structure. The load support member disposed on the insertion cam. A portion of the load support member is offset from an open end of the cantilevered arm to limit deformation of the cantilevered arm. Further, some examples described herein relate to a securing system including a plurality of securing sub-systems coupled via a synchronous movement link is also presented. Moreover, certain examples described herein relate to a computing system including at least one such securing sub-system.

First claim

What is claimed is:

1. A securing sub-system for securing an electronic device to a host infrastructure, the securing sub-system comprising:
a lever; and
a cam assembly engaged with the lever and movable due to a pivotal movement of the lever, wherein the cam assembly comprises:
an insertion cam comprising a cam body and a cantilevered arm extending from the cam body, wherein the cantilevered arm is configured to, in response to motion of the insertion cam in a first direction, engage a restrictive structure of the host infrastructure to drive insertion of the electronic device into the host infrastructure, wherein the cantilevered arm is deformable in response to engagement with the restrictive structure; and
a load support member disposed on the insertion cam, wherein the load support member comprises an arm backing portion, wherein at least part of the cantilevered arm is positioned between the arm backing portion and the cam body such that the arm backing portion limits an amount of deformation of the cantilevered arm by limiting a range of motion of the cantilevered arm relative to the cam body.

2. The securing sub-system of claim 1 , wherein the lever is mounted on a housing of the electronic device via a pivot pin and is movable with respect to the pivot pin.

3. The securing sub-system of claim 2 , further comprising a movement limiter pin attached to the housing and spaced apart from the pivot pin to limit the pivotal movement of the lever, and wherein the lever comprises an elongated guide opening to receive the movement limiter pin.

4. The securing sub-system of claim 1 , further comprising an idler gear engaged with the lever and the cam assembly, wherein the idler gear is rotatable due to a pivotal movement of the lever which causes the cam assembly to move.

5. The securing sub-system of claim 4 , wherein the lever comprises a driver gear having a first set of teeth and the idler gear comprises a second set of teeth, wherein the idler gear is positioned such that the first set of teeth engages with the second set of teeth to translate the pivotal movement of the lever into a rotational movement of the idler gear.

6. The securing sub-system of claim 5 , wherein the insertion cam comprises a third set of teeth engaged with the second set of teeth to cause an angular movement of the cam assembly based on the rotational movement of the idler gear.

7. The securing sub-system of claim 5 , further comprising an anti-backlash biasing member to bias the idler gear toward the cam assembly and the driver gear.

8. The securing sub-system of claim 7 , wherein the idler gear comprises a tooth-less portion and wherein the anti-backlash biasing member comprises u-shaped spring, wherein at least one other portion of the u-shaped spring contacts the tooth-less portion of the idler gear to bias the idler gear toward the cam assembly and the driver gear.

9. The securing sub-system of claim 1 , wherein the insertion cam further comprises a protrusion formed on the cam body and the load support member comprises an opening that is aligned to the protrusion, and wherein the load support member is positioned such that the protrusion is received into the opening formed in the load support member.

10. A securing system, comprising:
a first securing sub-system comprising a first instance of the securing sub-system of claim 1 ; and
a second securing sub-system coupled to first securing sub-system via a synchronous movement link, wherein the second securing subsystem comprises a second instance of the securing sub-system of claim 1
wherein the synchronous movement link is engaged with the idler gear such that the rotational movement of the idler gear causes linear movements within the synchronous movement link.

11. The securing system of claim 10 , wherein the synchronous movement link comprises:
a first link bar engaged with the idler gear of the first securing sub-system;
a second link bar engaged with the idler gear of the second securing sub-system; and
a link gear engaged with the first link bar and the second link bar to allow a linear movement of the first link bar and a linear movement of the second link bar.

12. The securing system of claim 11 , wherein the first link bar comprises a plurality of first linear teeth and a plurality of second linear teeth spaced apart from the plurality of first linear teeth, wherein the plurality of first linear teeth engages with the idler gear of the first securing sub-system so that the rotational movement of the idler gear causes the linear movement of the first link bar, and wherein the plurality of second linear teeth engages with the link gear so that the linear movement of the first link bar causes the linear movement of the second link bar.

13. The securing system of claim 11 , wherein the second link bar comprises a plurality of third linear teeth and a plurality of fourth linear teeth spaced apart from the plurality of third linear teeth, wherein the plurality of third linear teeth engages with the idler gear of the second securing sub-system so that the rotational movement of the idler gear causes the linear movement of the second link bar, and wherein the plurality of fourth linear teeth engages with the link gear so that the linear movement of the second link bar causes the linear movement of the first link bar.

14. The securing system of claim 10 , wherein the insertion cam further comprises teeth formed on the cam body, wherein the teeth formed on the cam body engages with the idler gear.

15. An electronic system, comprising:
a housing enclosing one or more electronic components; and
the securing sub-system of claim 1 coupled to the housing to secure the housing on a rack.

16. The electronic system of claim 15 , wherein the securing sub-system further comprises an idler gear engaged with the lever and the insertion cam, wherein the idler gear is rotatable due to a pivotal movement of the lever which causes the cam assembly to move.

17. The electronic system of claim 16 , wherein the securing sub-system further comprises an anti-backlash biasing member disposed in contact with the idler gear to bias the idler gear toward the cam assembly.

18. The electronic system of claim 16 , wherein the securing sub-system comprises a first securing sub-system and a second securing sub-system coupled to each other via a synchronous movement link.

19. The electronic system of claim 18 , wherein the synchronous movement link comprises:
a first link bar engaged with the idler gear of the first securing sub-system;
a second link bar engaged with the idler gear of the second securing sub-system; and
a link gear engaged with the first link bar and the second link bar to allow a linear movements of the first link bar and the second link bar.

20. The securing sub-system of claim 1 , wherein the arm backing portion is arranged such that, in an installed state of the electronic device in the host infrastructure, there is a gap between the cantilevered arm and the arm backing portion such that the cantilevered arm can move relative to the cam body.

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Franz John
• Hanson Michael

Classifications

• H05K7/1401 Primary

  comprising clamping or extracting means (H05K7/10 takes precedence) · CPC title

• H05K7/1488 Primary

  Cabinets therefor, e.g. chassis or racks or mechanical interfaces between blades and support structures · CPC title

• H05K7/1409 Primary

  by lever-type mechanisms · CPC title

• H05K7/1489

  characterized by the mounting of blades therein, e.g. brackets, rails, trays (H05K7/1491 takes precedence) · CPC title