Lever system for moving a component within a chassis

• US 6,912,124 B2
• Filed: 03/11/2002
• Issued: 06/28/2005
• Est. Priority Date: 04/04/2000
• Status: Expired due to Term

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Roscoe, Brett Dwayne, Megason, George D., Post, Christian H.
• Primary Examiner(s): DUONG, HUNG V
• Application Number:
  US10/094,779
• Publication Number:
  US 20020104396A1
• Time in Patent Office: 1,205 Days
• Field of Search: 361679-687, 361724-727, 360137-138, 439/157, 439/159, 439/905, 165/80.4, 165/104.33
• US Class Current: 361/679.02
• CPC Class Codes: F16H 19/04 comprising a rack
• CPC Class Codes: F16H 51/00 Levers of gearing mechanisms
• CPC Class Codes: H05K 7/1409 by lever-type mechanisms
• CPC Class Codes: Y10S 439/905 Axially joined sections
• CPC Class Codes: Y10T 74/18976 Rack and pinion
• CPC Class Codes: Y10T 74/20672 Lever engaging rack

Abstract

A lever system deploys a pinion gear that engages a pinion gear receiving portion. A handle is attached to the pinion gear to rotate the pinion gear between a retain position and a release position. The pinion gear receiving portion is attached to a first object and the pinion gear is pivotably mounted to a second object that may be moved with respect to the first object. The design of the pinion gear receiving portion and the pinion gear ensure linear travel of the second object as the pinion gear is rotated between the retain position and the release position. Additionally, the pinion gear and the receiving portion include contours that prevent relative linear motion in all directions.

Claims

1. A computer based system, comprising:

a chassis;

a pluggable component selectively engageable with the chassis; and

a lever system to facilitate engagement and disengagement of the pluggable component from the chassis, wherein the lever system restricts movement of the pluggable component relative to the chassis in all directions until actuated and wherein the lever system comprises a near mechanism.

2. The computer based system as recited in claim 1, wherein the chassis comprises a personal computer chassis.

3. The computer based system as recited in claim 1, wherein the chassis comprises a server chassis.

4. The computer based system as recited in claim 1, wherein the lever system having a gear mechanism comprises:

a pinion gear pivotably mounted to one of the chassis and the pluggable component for pivotable motion about a pivot axis;

a handle connected to the pinion gear for movement between a release position and a retain position; and

a pinion gear reception portion on the other of the chassis and the pluggable component, the pinion gear reception portion having a rack gear and a guide surface generally opposite the rack gear, wherein the guide surface is located to maintain the pinion gear in engagement with the rack gear as the handle is moved from the release position to the retain position.

5. The computer based system as recited in claim 1, wherein the pluggable component comprises a multipin plug connector portion and the chassis encloses a corresponding multipin plug connector portion positioned to receive the multipin plug connector portion when the pluggable component is engaged with the chassis.

6. The computer based system as recited in claim 4, wherein the pinion gear includes at least one tooth disposed to ensure movement of the pivot axis generally along a straight line as the handle is moved between the release position and the retain position.

7. The computer based system as recited in claim 4, wherein the pinion gear includes a stop surface located to move into engagement with the guide surface when the handle is in the retain position.

8. The computer based system as recited in claim 4, wherein the pinion gear reception portion includes a lateral interference region to prevent lateral movement of the pinion gear along the pivot axis with respect to the pinion gear reception portion.

9. The computer based system as recited in claim 4, wherein the pinion gear includes a tapered stop surface disposed to engage the tapered surface when the handle is in the closed position.

10. The computer based system as recited in claim 4, wherein the pinion gear includes a stop surface located to move into engagement with the guide surface when the handle is in the retain position.

11. The computer based system as recited in claim 9, wherein at least a portion of the tapered surface extends beyond the stop surface.

12. The computer based system as recited in claim 10, wherein the pinion gear reception portion includes a lateral interference region to prevent lateral movement of the pinion gear along the pivot axis with respect to the pinion gear reception portion.

13. The computer based system as recited in claim 12, wherein the lateral interference region includes a tapered surface disposed at an angle with respect to the pivot axis when the pinion gear is engaged with the pinion gear reception portion.

14. A method of moving a component within a chassis, comprising:

engaging a lever system having a gear member between the component and the chassis to facilitate movement of the component between a retained position and a release position relative to the chassis; and

configuring the lever system to prevent inadvertent movement of the component to the release position and to prevent lateral movement of the component with respect to the chassis.

15. The method as recited in claim 14, further comprising pivoting a lever to rotate the gear member to force the component into the retained position within the chassis.

16. The method as recited in claim 14, further comprising releasably pivoting the lever system to rotate the gear member to force the component to the release position.

17. The method as recited in claim 14, wherein preventing inadvertent movement to the release position comprises engaging the gear member with a gear member reception portion.

18. The method as recited in claim 14, further comprising biasing the lever away from the retained position with a spring member.

19. The method as recited in claim 15, further comprising electrically coupling the component to a plug connector portion positioned within the chassis when the component is forced into the retained position.

20. A system for moving a releasable computer component with respect to a computer chassis, comprising:

a gear member mounted to the releasable computer component; and

a gear member reception portion mounted to the computer chassis wherein as the gear member and gear member reception portion are engaged and rotated with respect to each other, the gear member may by moved to a retained position at which position the gear member restricts linear movement in all directions.

21. The computer based system as recited in claim 20, further comprising a handle connected to the gear member to pivot the gear member between a retain position and a release position.

22. The computer based system as recited in claim 20, wherein the computer chassis comprises a server chassis.

23. The computer based system as recited in claim 21, wherein the gear member comprises a pinion gear having at least one tooth.

24. The computer based system as recited in claim 23, wherein the pinion gear is pivotably mounted to the first object about a pivot axis.

25. The computer based system as recited in claim 24, wherein the pinion gear reception portion includes a lateral interference region to prevent lateral movement of the pinion gear along the pivot axis with respect to the pinion gear reception portion.

26. The computer based system as recited in claim 25, further comprising a spring member positioned to bias the handle away from the retained position.

27. A system for moving a releasable computer component with respect to a computer chassis, comprising:

a gear member mounted to the releasable computer chassis; and

a gear member reception portion mounted to the releasable computer component wherein as the gear member and gear member reception portion are engaged and rotated with respect to each other, the gear member may by moved to a retained position at which position the gear member restricts linear movement in all directions.

28. The computer based system as recited in claim 27, further comprising a handle connected to the gear member to pivot the gear member between a retain position and a release position.

29. The computer based system as recited in claim 27, wherein the computer chassis comprises a server chassis.

30. The computer based system as recited in claim 28, wherein the gear member comprises a pinion gear having at least one tooth.

31. The computer based system as recited in claim 30, wherein the pinion gear is pivotably mounted to the first object about a pivot axis.

32. The computer based system as recited in claim 31, wherein the pinion gear reception portion includes a lateral interference region to prevent lateral movement of the pinion gear along the pivot axis with respect to the pinion gear reception portion.

33. The computer based system as recited in claim 32, further comprising a spring member positioned to bias the handle away from the retained position.