DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block decomposition diagram of a combination structure of base plate and escutcheon in accordance with the first preferred embodiment of the present invention.
FIG. 2 is a cross-sectional diagram of a combination structure of base plate and escutcheon taken along line 2-2 of FIG. 1.
FIG. 3 is a partially enlarged diagram of a combination structure of base plate and escutcheon in accordance with the first preferred embodiment of the present invention.
FIG. 4 is a partially enlarged diagram of another combination structure of base plate and escutcheon in accordance with the present invention.
FIG. 5 is a partially enlarged diagram of a further combination structure of base plate and escutcheon in accordance with the present invention.
FIG. 6 is the motions showing which an escutcheon disengages from a base plate in accordance with the first preferred embodiment of the present invention.
FIG. 7 is the structure diagram of another escutcheon in accordance with the present invention.
FIG. 8 is a block decomposition diagram of a combination structure of base plate and escutcheon in accordance with the second preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE PRESENT INVENTION
In the first preferred embodiment of the present invention showed in FIG. 1, FIG. 2 and FIG. 3, a combination structure of base plate and escutcheon 10 comprises a base plate 11, a fastener 12 and an escutcheon 13. The fastener 12 is installed on the base plate 11, in this embodiment, the base plate 11 has a plate 111, a ring-like wall 112 surrounding the plate 111, at least one position hole 113 and at least one position bump 114, and both the position hole 113 and the position bump 114 are formed on the ring-like wall 112. The fastener 12 has a fastening portion 121, a fixing portion 123 and a flexible portion 122 connecting the fastening portion 121 and the fixing portion 123. The fastener 12 is made of a metal sheet and that can be an s-shape or a u-shape. The fixing portion 123 is installed on the ring-like wall 112 of the base plate 11 and corresponds to the position hole 113. In this embodiment, the fixing portion 123 has a first clip-arm 1231, a bending portion 1232 and a second clip-arm 1233. The bending portion 1232 is utilized to connect the first clip-arm 1231 and the second clip-arm 1233 and the ring-like wall 112 is held by the first clip-arm 1231 and the second clip-arm 1233 hence the fixing portion 123 of the fastener 12 can be coupled to the base plate 11. Furthermore, the fixing portion 123 may have a position-protruding portion 1234 engaged with the position hole 113 of the base plate 11 to increase the coupling strength of the fixing portion 123 and the base plate 11. In this embodiment, the position-protruding portion 1234 is formed on the second clip-arm 1233, otherwise in another embodiment showed in FIG. 4, the position-protruding portion 1234 is formed on the first clip-arm 1231 and there is no need to fabricate the bending portion 1232 and the second clip-arm 1233 thereby saving the fabrication cost of fastener 12. It is desirable to tightly engage the position-protruding portion 1234 with the position hole 113 of the base plate 12 that allows the fixing portion 123 of the fastener 12 to be coupled to the base plate 11, in this embodiment, the position-protruding portion 1234 can be a triangular protrusion, a rectangular protrusion or a circular protrusion. Otherwise in a further embodiment, the fixing portion 123 of the fastener 12 can be directly coupled to the ring-like wall 112 (not showed in the drawing) by applying a coupling element such as adhesive resin, screw or rivet enabling the fastener 12 to be fixed to the base plate 11.
Referring to FIG. 2, the base plate 11 is covered with the escutcheon 13, and the escutcheon 13 has a sidewall 131, an opening 132, a limited-portion 133 and at least one engaging bump 134. The opening 132 is formed on the sidewall 131 and exposes the fastening portion 121 of the fastener 12. The limited-portion 133 is restrained by the fastening portion 121 of the fastener 12 and the engaging bump 134 is engaged with the position bump 114 of the base plate 11. In this embodiment, the limited-portion 133 is a protrusion formed on an inner side 131A of the sidewall 131 and that is restrained by the fastening portion 121 of the fastener 12. Otherwise, in another embodiment of FIG. 5, the limited-portion 133 is even with the sidewall 131 and the fastening portion 121 of the fastener 12 has a bend-protruding portion 121A that engages with the opening 132 of the escutcheon 13 and restrains the limited-portion 133. Besides, the bend-protruding portion 121A has a limited-end 121B and the limited-portion 133 of the escutcheon 13 can be restrained by the limited-end 121B so as to prevent the escutcheon 13 disengaging from the base plate 11.
Referring to FIG. 6, if the escutcheon 13 is intentionally going to be removed from the base plate 11, a fastener-releasing tool (not showed in the drawings) is utilized to push the fastening portion 121 of the fastener 12 through the opening 132 of the escutcheon 13 that allows the limited-portion 133 to disengage from the limiting of the fastening portion 121 of the fastener 12 thereby completing fastener-releasing step. Next, the engaging bump 134 of the escutcheon 13 is enforced to disengage with the position bump 114 of the base plate 11 by adding an external force to the escutcheon 13 and then the escutcheon 13 can be removed from the base plate 11. In this embodiment, the opening 132 of the escutcheon 13 is utilized to expose the fastening portion 121 of the fastener 12 for releasing fastener. Accordingly, in another embodiment referring to FIG. 7, the opening 132 of the escutcheon 13 and the limited-portion 133 can be installed separately.
In the second preferred embodiment of the present invention showed in FIG. 8, a combination structure of base plate and escutcheon 20 comprises a circular base plate 21, a fastener 22 and a circular escutcheon 23. The circular base plate 21 has a plate 211 and a ring-like wall 212 surrounding the plate 211, a position hole 213 and a position bump 214, wherein the position hole 213 and the position bump 214 are formed on the ring-like wall 212. The fastener 22 has a fastening portion 221, a flexible portion 222 and a fixing portion 223, wherein the flexible portion 222 connects the fastening portion 221 and the fixing portion 223, the fixing portion 223 is installed on the ring-like wall 212 and corresponds to the position hole 213. The circular base plate 21 is covered with the circular escutcheon 23 and the circular escutcheon 23 has a sidewall 231, an opening 232, a limited-portion 233 and at least one engaging bump 234. The opening 232 is formed on the sidewall 231 and exposes the fastening portion 221 of the fastener 22. The limited-portion 233 is restrained by the fastening portion 221 of the fastener 22, and the engaging bump 234 engages with the position bump 214 of the circular base plate 21. The structure and assembling method of this embodiment is basically as same as those of the first preferred embodiment so that there is no need to describe herein again.
While the present invention has been particularly illustrated and described in detail with respect to the preferred embodiments thereof, it will be clearly understood by those skilled in the art that various changed in form and details may be made without departing from the spirit and scope of the present invention.
Patent Application
20080067820
