초록 ▼

An adjustable projector bracket assembly has a pivoting device, a moving device and an adjusting device. The moving device is slidably connected with the pivoting device and has a bottom. The adjusting device is mounted on the bottom of the moving device and has a projector bracket and at least thre

An adjustable projector bracket assembly has a pivoting device, a moving device and an adjusting device. The moving device is slidably connected with the pivoting device and has a bottom. The adjusting device is mounted on the bottom of the moving device and has a projector bracket and at least three supporting arms. The projector bracket has at least three arm grooves formed through the projector bracket. The at least three supporting arms are respectively pivotally and slidably connected with the at least three arm grooves. With the supporting arms pivotally and slidably connected with the arm grooves, projectors P of different sizes or having different assembling holes can be mounted securely on the projector bracket.

대표청구항 ▼

1. An adjustable projector bracket assembly comprising: a pivoting device having a base; anda beam mounted laterally on and connected pivotally to the base and having a bottom surface; andan elongated mount groove formed in the bottom surface of the beam;a moving device slidably connected with the p

1. An adjustable projector bracket assembly comprising: a pivoting device having a base; anda beam mounted laterally on and connected pivotally to the base and having a bottom surface; andan elongated mount groove formed in the bottom surface of the beam;a moving device slidably connected with the pivoting device and having a moving mount mounted below the beam and having a head and a bottom opposite to the head;two reversed L-shaped clamps slidably mounted in the mount groove, mounted in and protruding out from the head of the moving mount and capable of approaching each other; anda mount bolt rotatably and radially mounted in the head of the moving mount and through the clamps; andan adjusting device mounted on the bottom of the moving mount and having a projector bracket mounted below the bottom of the moving mount and having at least three arm grooves formed through the project bracket; andat least three supporting arms respectively connected pivotally and slidably to the at least three arm grooves, each supporting arm having an adjusting end slidably connected with a corresponding arm groove; anda mounting end opposite to the adjusting end and having a through hole formed though the mounting end. 2. The adjustable projector bracket assembly as claimed in claim 1, wherein the projector bracket has an outer edge and a central position; andthe arm grooves are arcuated and elongated from the central position to the outer edge of the projector bracket in an operational rotation direction. 3. The adjustable projector bracket assembly as claimed in claim 2, wherein the central position of the projector bracket has a convex and round top and a concave and round bottom;the projector bracket has an elongated angle adjusting groove formed though the central position of the projector bracket; andthe adjusting device has a positioning pin being a bolt, longitudinally mounted through the angle adjusting groove and screwed securely into the bottom of the moving mount. 4. The adjustable projector bracket assembly as claimed in claim 3, wherein the pivoting device has a strip;the base has a connecting surface;a wall surface opposite to the connecting surface;a protrusion protruding laterally from the connecting surface and having a top; anda pivot tube longitudinally mounted securely on the top of the protrusion and separated from the connecting surface;the beam has a pivoting end rotatably mounted around the pivot tube; andthe strip is mounted securely on the connecting surface and abuts the pivoting end. 5. The adjustable projector bracket assembly as claimed in claim 4, wherein the strip has two ends; and the pivoting device has a blocking bolt longitudinally screwed securely into the top of the protrusion beside the pivot tube and being adjacent to one of the ends of the strip; anda blocking ring rotatably mounted around the blocking bolt. 6. The adjustable projector bracket assembly as claimed in claim 1, wherein four arm grooves are implemented and are spaced at intervals. 7. The adjustable projector bracket assembly as claimed in claim 2, wherein four arm grooves are implemented and are spaced at intervals. 8. The adjustable projector bracket assembly as claimed in claim 3, wherein four arm grooves are implemented and are spaced at intervals. 9. The adjustable projector bracket assembly as claimed in claim 4, wherein four arm grooves are implemented and are spaced at intervals. 10. The adjustable projector bracket assembly as claimed in claim 5, wherein four arm grooves are implemented and are spaced at intervals.