Ceiling fixture

[0002] 1. Field of the Invention

[0003] The invention relates to an improved ceiling fixture and particularly a ceiling fixture that has an elastic plate to latch on the screw thread pitch to anchor a holding dish to facilitate installation of a ceiling lamp.

[0004] 2. Description of the Prior Art

[0005] Conventional ceiling fixtures now available on the market are generally constructed as the one shown in FIGS. 1, 2 and 3. It mainly includes a ceiling plate 2 fastening to a preformed cavity 11 on the ceiling 1 through screws 21. A holding dish 31 is fastened to the ceiling plate 2 for coupling with a ceiling lamp 3 through fastening screws 22. The holding dish 31 has fastening holes 311 to receive the fastening screws 22 which are screwed to anchor the holding dish 31. Then a bolt 32 is provided with one end screwing in a screw hole 312 formed on the holding dish 31 and another end coupling with a glass shade 33 and a cap 34. Finally a nut 35 is provided to couple with the bolt 32 to complete the assembly of the ceiling lamp 3. Such a construction has the following disadvantages:

[0006] 1. Before installation, the fastening screws 22 must be fastened to the ceiling plate 2. Next, the holding dish 31 is coupled from the lower side to the upper side, and the fastening holes 311 of the holding dish 31 are coupled with the fastening screws 22. The holding dish 31 is turned for positioning at a desired location. Then the fastening screws 22 are tightened. Although the actions mentioned above can fasten the holding dish 31 to the ceiling plate 2, they involve many cumbersome operations. Moreover, the ceiling plate 2 usually is installed on the ceiling which is high above the floor, people have to climb and work on an elevated location, and have to turn and tighten the fastening screws 22 while holding the holding dish 31 with one hand. It is an inefficient operation.

[0007] 2. When the holding dish 31 is fastened to the ceiling plate 2, and the bolt 32 is fastened to the screw hole 312 of the holding dish 31, the glass shade 33 and the cap 34 have to be fastened by the nut 35. As the glass shade 33 is quite heavy and is supported merely by the bolt 32 fastening to the holding dish 31 which in turn is fastened to the ceiling plate 2 through fastening screws 22, to bear such a heavy load by means of such a support structure is quite risky in the long run.

[0008] In view of the aforesaid disadvantages, the primary object of the invention is to provide an improved ceiling fixture that has a stronger support to bear the heavy weight of the ceiling lamp and is easier to install.

[0009] The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.

[0010] FIG.1 is an exploded view of a conventional ceiling fixture.

[0011] FIG. 2 is a schematic view of a conventional ceiling plate and a holding dish.

[0012] FIG. 3 is a sectional view of a conventional ceiling fixture.

[0013] FIG. 4 is an exploded view of the invention.

[0014] FIG. 5 is an exploded view of the fastening means of the invention.

[0015] FIG. 6 is a schematic view of a ceiling plate and a holding dish of the invention.

[0016] FIG. 7 is a fragmentary sectional view of the fastening means coupling with a bolt according to the invention.

[0017] FIG. 8 is a schematic view of the spring of the invention in various assembly conditions.

[0018] FIG. 9 is a sectional view of the invention after assembled.

[0019] FIG. 10 is an exploded view of another embodiment of the fastening means of the invention.

[0020] Referring to FIGS. 4, 5 and 6, the invention mainly includes a ceiling plate 5 fastened to the ceiling 4 through screws 51. The ceiling plate 5 has a screw hole 52 to engage with a bolt 53. The bolt 53 is coupled with a fastening nut 54 for fastening the bolt 53 in the screw hole 52.

[0021] There is a ceiling lamp 6 which includes a holding dish 61, a glass shade 62, a cap 63 and a nut 64. The holding dish 61 has an opening 611 to enable the bolt 53 to run through. The glass shade 62 and the cap 63 have respectively an aperture 621 and 631 to allow the bolt 53 to run through. The bolt 53 is engaged with the nut 64 for holding the glass shade 62 and the cap 63.

[0022] A fastening means 7 is provided between the holding dish 61 and the glass shade 62. The fastening means 7 includes an upper lid 71 which has apertures 712 to receive screws 711 to engage with screw holes 721 formed on a switch box 72. The switch box 72 has a notch 724 on one side and a housing chamber 725 formed in the interior. The upper lid 71 and the switch box 72 have respectively a first opening 713 and a second opening 722 corresponding to each other and formed in an eccentric manner. The upper lid 71 further has a C-shaped flange 714 extending downwards from the peripheral rim of the first opening 713. The housing chamber 725 may house an elastic plate set 73. The elastic plate set 73 has a stem end 731 on one side extending outside the housing chamber 725, an opening 732, a tongue 733 located on another side opposite to the stem end 731 and extended into the opening 732, and a first stub 734 located on one end thereof to couple with one end of a spring 735. The spring 735 has another end coupling with a second stub 723 located on an inner side of the switch box 72. The opening 732 apart from the tongue 733 may house the C-shaped flange 714 of the upper lid 71.

[0023] Referring to FIGS. 7, 8 and 9, for assembling and installing the ceiling lamp 6, first, engage the bolt 53 with the screw hole 52 of the ceiling plate 5 and fasten the fastening nut 54 tightly to anchor the bolt. Next, fasten the ceiling plate 5 to the ceiling 4, then couple the holding dish 61 on the bolt 53. Dispose the elastic plate set 73 in the housing chamber 725 with the C-shaped flange 714 of the upper lid 71 housed in the opening 732. Engage the screws 711 in the housing chamber 725 of the switch box 72. Depress the stem end 731 and compress the elastic plate set 73 to move the tongue 733 for a selected displacement so that the fastening means 7 may be coupled on the bolt 53 through the first opening 713, C-shaped flange 714 and second opening 722 of the switch box 72. Once the fastening means 7 is located on a desired position, release the stem end 731, the elastic force of the spring 735 pushes the elastic plate set 73 to its original position (as shown in FIG. 8). Thus the tongue 733 is latched on a screw thread pitch 531 of the bolt 53, and the holding dish 61 is anchored without dropping. Then the glass shade. 62 and the cap 63 may be coupled on the bolt 53 in this order, and the nut 64 may be coupled with the bolt for fastening.

[0024] By means of the aforesaid construction, users may fasten the ceiling plate 5 coupled on the bolt 53 to the ceiling 4. Then the holding dish 61 may be coupled on the bolt 53. Meanwhile depress the stem end 731 of the elastic plate set 73 to move the tongue 733 so that the bolt 53 may be run through the fastening means 7. When the fastening means 7 reaches the desired location, release the stem end 731, the holding dish 61 may be anchored securely. Then the glass shade 62 and the cap 63 may be coupled and fastened to complete the installation.

[0025] FIG. 10 illustrates another embodiment of the fastening means 7 of the invention that has an altered exterior shape according to the requirement of the ceiling lamp 6.

[0026] In summary, by means of the structure and the elastic plate set provided by the invention, installation of the ceiling lamp is much easier. Even general consumers can do it without difficulty. And the risky tasks of climbing to a high place to fasten the screws are no longer necessary.

[0027] While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments which do not depart from the spirit and scope of the invention.