IP Library › Granted Patent US 7,815,542
Granted Patent B2
US 7,815,542 · App. 11/888,743 · Granted Oct 19, 2010

Reverse sprocket transfer case

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Quick Facts
Patent No.
US 7,815,542
App. No.
11/888,743
Granted
Oct 19, 2010
Kind
B2
Abstract

A transfer case comprising a rotational input member, a rotational output member, a rotational planetary gear portion operatingly engaged between the input member and the output member, a moveable cam member selectively engagable with the planetary gear portion, whereby the rotation of the planetary gear portion is stopped when the cam member is engaged with the planetary gear portion, the rotational direction of the output member is in the same direction as the input member when the cam member is not engaged with the planetary gear portion, and the rotational direction of the output member is opposite the rotational direction of the input member when the cam member is engaged with the planetary gear portion.

Claims (13)

1. A transfer case comprising:

a rotational input member;

a rotational output member;

a rotational planetary gear portion mechanically engaged between the input member and the output member;

a moveable cam member having an axis concentrically rotatable on the output member axis of rotation and selectively engagable with the planetary gear portion, whereby the rotation of the planetary gear portion is stopped when the cam member is engaged with the planetary gear portion;

a gear for selectively engaging the planetary gear portion with the output member whereby the planetary gear portion and the output member are rotatable in locked relation;

a spring in contact with the gear for urging the gear into contact with the cam member;

the rotational direction of the output member is in the same direction as the input member when the cam member is not engaged with the planetary gear portion; and

the rotational direction of the output member is opposite the rotational direction of the input member when the cam member is engaged with the planetary gear portion.

2. The transfer case as in claim 1 , wherein a cam member ratchet portion engages a ratchet portion of the planetary gear portion.

3. The transfer case as in claim 1 , wherein an output drive ratio between the input member and the output member is approximately the same for either forward mode or reverse mode.

4. The transfer case as in claim 1 , wherein the rotation of the planetary gear portion is stopped when the cam member is engaged with the planetary gear portion.

5. The transfer case as in claim 1 , wherein the cam member further comprises a cam member ratchet portion engagable with a planetary gear ratchet portion for stopping rotation of the planetary gear portion when the cam member ratchet portion is engaged with the planetary gear ratchet portion.

Assignments (9)
RELEASE (REEL 033472 / FRAME 0333) Recorded Jun 5, 2024
From: CITIBANK, N.A.
To: GATES CORPORATION
Reel/Frame 067626/0232 →
CHANGE OF NAME Recorded Feb 4, 2015
From: THE GATES CORPORATION
To: GATES CORPORATION
Reel/Frame 034893/0006 →
SECURITY INTEREST Recorded Aug 5, 2014
From: THE GATES CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 033472/0333 →
SECURITY INTEREST Recorded Aug 4, 2014
From: THE GATES CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 033465/0252 →
RELEASE OF SECURITY AGREEMENT Recorded Jul 10, 2014
From: CITICORP USA, INC.
To: AQUATIC CO.; THE GATES CORPORATION, A DELAWARE CORPORATION; GATES MECTROL, INC., A DELAWARE CORPORATION; EIFELER MASCHINENBAU GMBH
Reel/Frame 033289/0254 →
RELEASE OF SECURITY AGREEMENT Recorded Jul 10, 2014
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: AQUATIC CO.; THE GATES CORPORATION, A DELAWARE CORPORATION; GATES MECTROL, INC., A DELAWARE CORPORATION; EIFELER MASCHINENBAU GMBH
Reel/Frame 033290/0631 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Dec 30, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 025560/0057 →
SECURITY AGREEMENT Recorded Dec 29, 2010
From: AIR SYSTEM COMPONENTS, INC.; AQUATIC CO.; DEXTER AXLE COMPANY; EASTERN SHEET METAL, INC.; EPICOR INDUSTRIES, INC.; THE GATES CORPORATION; GATES MECTROL, INC.; HART & COOLEY, INC.; RUSKIN COMPANY; SCHRADER-BRIDGEPORT INTERNATIONAL, INC.; SCHRADER ELECTRONICS, INC.; SELKIRK CORPORATION; TOMKINS INDUSTRIES, INC.; EIFELER MASCHINENBAU GMBH
To: CITICORP USA, INC., AS COLLATERAL AGENT
Reel/Frame 025549/0407 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 27, 2007
From: DEC, ANDRZEJ
To: GATES CORPORATION, THE
Reel/Frame 019751/0420 →