Arm apparatus for mounting electronic devices
View Patent ↗An extension arm suitable for mounting a flat-screen electronic peripheral device, including a forearm extension having at one end a first coupling for attachment to a tilter, a platform or other means for supporting a flat-screen device and at the other end a second coupling. The extension arm also includes a pair of end caps, each having a shaft. The shaft of the first end cap is pivotably rotatable in a support mount, such as a wall, desk or pole mount. The shaft of the second end cap is pivotably rotatable in the second coupling of the forearm extension. The extension arm also includes an upper channel and a lower channel. Each channel has at opposite ends a pair of integrally cast rollers which are pivotably attached to each of the end caps. The upper and lower channels and the end caps form an adjustable parallelogram.
1. An end cap for use in an extension arm that adjustably mounts to a device to support a mount, said end cap comprising a partially enclosed housing including a first endwall having a hole, a second endwall and at least one sidewall; a shaft connected to said second endwall extending outwardly; and a pair of shelves disposed within said partially enclosed housing adjacent to said second endwall, said pair of shelves forming a groove therebetween, wherein said partially enclosed housing is adapted to receive a rod having a first end rotationally received within said hole in said first endwall and a second end rotationally received within said groove formed by said pair of shelves adjacent said second endwall.
2. The end cap of claim 1 , wherein each of said shelves include a threaded screw hole formed therein.
3. The end cap of claim 1 , further comprising at least one stop member located within said partially enclosed housing proximate to said first endwall and said second endwall.
4. The end cap of claim 1 , wherein said at least one sidewall is semicircular in shape and connects to said first endwall and said second endwall.
5. The end cap of claim 1 , further comprising a pair of trough walls formed within said partially enclosed housing, said pair of trough walls extending between said first endwall and said second endwall forming a trough therebetween.
6. The end cap of claim 5 , further comprising a clevis having an end received within said trough and a rod in threaded engagement with said clevis, wherein said clevis is configured to slide within said trough when said rod rotates round an axial centerline of said rod.
7. The end cap of claim 6 , wherein said rod includes a first end having a shaped opening, a shoulder adjacent to the first end, a threaded portion, and a second end.
8. The end cap of claim 7 , wherein the first end of said rod is located within said hole provided in said first endwall, and said shoulder of said rod abuts an inner surface of said first endwall.
9. The end cap of claim 7 , wherein the second end of said rod is rotatably secured within said groove and is retained in place by a retainer clip fastened to said shelves.
10. The end cap of claim 9 , wherein said retainer clip is fastened to said pair of shelves by screws.
11. An end cap for use in an extension arm that adjustably mounts a device to a support mount, said end cap comprising a partially enclosed housing formed by a first endwall, a second endwall and at least one sidewall extending between said first and second endwalls; a shaft extending outwardly from said second endwall; a trough having a longitudinal length formed within said housing extending between said first and second endwalls; a threaded rod rotatably secured within said housing; a clevis having one portion received within said trough and another portion engaged by said rod, wherein rotation of said rod causes said clevis to move within said housing between said first and second endwalls; and at least one first stop member within said housing having a first end arranged inwardly of said first endwall and at least one second stop member within said housing having a second end arranged inwardly of said second endwall, wherein said first end of said at least one first stop member is spaced from said second end of said at least one second stop member within said housing by a distance smaller than the longitudinal length of said trough between said first and second endwalls.
12. The end cap of claim 11 , wherein said sidewall has an opening extending between said first and second endwalls.
13. The end cap of claim 11 , wherein said first endwall includes an opening adapted to receive one end of said rod.
14. The end cap of claim 13 , further including a shelf having a groove within said housing adjacent said second endwall, wherein the other end of said rod is rotatable secured within said groove.
15. The end cap of claim 11 , wherein said shaft and said rod each have a longitudinal axis arranged collinear with each other.
16. The end cap of claim 11 , wherein said trough is formed from a pair of spaced apart trough walls extending between said first and second endwalls.
17. The end cap of claim 16 , wherein said trough walls are integrally formed with said sidewall.
18. The end cap of claim 11 , wherein said clevis includes a pair of spaced apart fastening members at one end thereof.
19. An end cap for use in an extension arm that adjustably mounts a device to a support mount, said end cap comprising a partially enclosed housing formed by a first endwall, a second endwall and at least one sidewall extending between said first and second endwalls; a shaft extending outwardly from said second endwall; a trough having a longitudinal length formed within said housing extending between said first and second endwalls; a threaded rod rotatably secured within said housing; a clevis having one portion received within said trough and another portion engaged by said rod, wherein rotation of said rod causes said clevis to move within said housing towards said first and second endwalls; and a first pair of projections extending inwardly opposing each other from said sidewall within said housing each having a first end arranged inwardly of said first endwall, and a second pair of projections extending inwardly opposing each other from said sidewall within said housing each having a second end arranged inwardly of said second endwall, wherein said first ends of said first pair of projections are spaced from said second ends of said second pair of projections within said housing by a distance smaller than the longitudinal length of said trough.