IP Library Granted Patent US 9,085,924
Granted Patent B2
US 9,085,924 · App. 13/725,596 · Granted Jul 21, 2015

Lift adjust sliding door roller

Inventor: Drannan Tidwell (Federal Way, WA)
Assignee: Milgard Manufacturing Incorporated
E05D15/0669E05Y2201/638E05Y2900/132Y10T16/3819Y10T16/3834
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Quick Facts
Patent No.
US 9,085,924
App. No.
13/725,596
Granted
Jul 21, 2015
Kind
B2
Abstract

A sliding door roller system comprising a wheel housing, two roller wheels rotatably coupled to the wheel housing, an upper base, a second housing configured to be secured to a door and a ratchet mechanism coupled to the first housing and second housing, discretely stepping the second housing away from the first housing in a plurality of positions.

Claims (34)

1. A sliding door roller system comprising:

a wheel housing;

two roller wheels rotatably coupled to the wheel housing;

an upper base;

a second housing configured to be secured to a door; and

a ratchet mechanism coupled to the wheel housing and second housing, discretely stepping the second housing away from the wheel hosing in a plurality of positions, wherein the ratchet mechanism comprises a ratchet wheel with at least one gear wheel mounted thereto.

2. The sliding door roller system of claim 1 , further including at least one spring between the ratchet mechanism and the door activating the ratchet mechanism upon lifting door in a direction away from the wheel housing.

3. The sliding door roller system of claim 1 , wherein the ratchet wheel is mounted off-center.

4. The sliding door roller system of claim 1 wherein the ratchet mechanism comprises a ratchet mechanism housing.

5. The sliding door roller system of claim 4 , wherein the ratchet mechanism housing is contains at least one tooth.

6. The sliding door roller system of claim 1 , wherein the ratchet mechanism is located above the two roller wheels.

7. The sliding door roller system of claim 1 , wherein the wheel housing comprises at least one tooth.

8. The sliding door roller system of claim 1 , wherein the wheel housing comprises two plates.

9. A sliding door roller system comprising:

a wheel assembly comprising:

a first wheel axle,

a second wheel axle,

a first wheel housing plate,

a second wheel housing plate,

a first wheel, and

a second wheel;

a ratchet housing movably located between the first wheel housing plate and the second wheel housing plate, the ratchet housing having at least one pawl;

a cam having a gear offset from a center of the cam, the gear having gear teeth operatively engaging the pawl;

a spring biased platform extending from the ratchet housing in a direction away from the first wheel and second wheel;

wherein, the cam is rotated relative to the wheel assembly moving the platform relative to the first wheel and second wheel.

10. The sliding door roller system of claim 9 , wherein the ratchet housing includes grooves defining the ratchet housing pawl.

11. The sliding door roller system of claim 10 , wherein the first wheel housing plate includes a wheel housing pawl.

12. The sliding door roller system of claim 11 , wherein the ratchet housing includes an angled slot relative to the platform.

13. The sliding door roller system of claim 12 , wherein a pin extends through the angled slot.

14. The sliding door roller system of claim 13 , the second housing plate contains a long tooth and a short tooth and interface with the cam.

15. The sliding door roller system of claim 9 , wherein the cam has an outer periphery with treads.

16. The sliding door roller system of claim 9 , wherein at least one of the housing plates contains at least one tooth.

17. The sliding door roller system of claim 9 , wherein the cam is mounted off-center.

18. The sliding door roller system of claim 17 , wherein the cam raises and lowers the platform.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2013
From: TIDWELL, DRANNAN
To: MILGARD MANUFACTURING INCORPORATED
Reel/Frame 029605/0295 →
Continuity (2)
Provisional Application 61733418 · Dec 4, 2012
Related Publication 20140150209A1 · Jun 5, 2014