Decorative molding strip

Abstract: A decorative molding for a corner formed by a ceiling and a vertical wall comprises a thin strip (10, 22, 32, 42, 52, S) of flexible plastic and is secured to the wall by an attachment allowing the molding strip along its upper and lower edges to be flexible to conform with uneven surfaces in the ceiling and/or wall. In one form the strip is attached to the wall by an adhesive. In another form, a wall track (56) and clip (60) arrangement is utilized to provide easy removal from the wall for paint or wallpaper application. A corner element (52, 69) is provided in one form in which ends of the strips (S) are adhesively secured thereto in overlapping engagement. In another embodiment, the strips (S) are telescopically connected to the corner element (69).

Description: This invention relates to decorative molding removably installed at the juncture of a ceiling and a vertical wall, comprising the features of the preamble to claim 1. In the past, various moldings have been provided as disclosed and described, for example, in US-A-3,302,350; 3,481,092 and 3,616,587. These patents disclose various methods of attaching the molding strip to the corner juncture. However, these methods are undesirable in that the mounting is permanent and/or rigid causing difficulties in modifying decorative features of a house in many applications. For example, in many older homes the surface of the walls and ceilings are uneven due to settling of the house or water damage, for example. Firm and secure attachment of the prior art devices would be difficult due to the fact that the upper and lower surfaces of the molding are rigidly and/or permanently attached to the ceiling and wall. In US-A-3,302,350 the walls of the mounting member are rigidly connected to the ceiling and wall by screws. The US-A-3,481,092 device is attached by applying adhesive to the flat upper and lower edges of the molding. In US-A-3,616,587 the upper and lower edges of the molding are rigidly attached to the walls by clips. Thus, it can be seen that the rigid mounting of these prior art devices do not allow the molding to conform or adjust to uneven wall surfaces. DE-A-16 59 736, Fig. 2, shows a decorative molding according to the preamble of claim 1. The molding is formed with a toothed web so that it is rather stiff and does not conform to uneven surfaces. Furthermore, the toothed web must be inserted into slots of brackets which are hidden by the molding to be installed so that mounting is somewhat difficult. The present invention overcomes these difficulties by providing a mounting system that allows the flexible decorative molding to conform to uneven surfaces in a wall and/or ceiling. Among the objectives of this invention are to provide a mounting system for decorative molding that is flexible allowing the strip to conform to expansion, contraction or uneven surfaces in the wall and/or ceiling yet secure enough to adequately maintain the molding in place; that is easy to install requiring little or no skills; that is easily removable to allow for painting, wallpaper application or other decorating features; and that provides an attractive and decorative molding that is less costly than wood moldings, can be supplied with a pre-finished wood grain, and can be stained or painted. The invention is defined in claim 1. Brief Description of the Drawings FIG. 1 is a front elevational view of a first embodiment of the molding strip; FIG. 2 is a sectional view taken along the line 2-2 in FIG. 1; FIG. 3 is a front elevational view of a second embodiment of the molding strip; FIG. 4 is a sectional view taken along the line 4-4 in FIG. 3; FIG. 5 is a front elevational view of a third embodiment of the molding strip; FIG. 6 is a sectional view taken along the line 6-6 in FIG. 5; FIG. 7 is a front elevational view of a fourth embodiment of the molding strip; FIG. 8 is a sectional view taken along line 8-8 in FIG. 7; FIG. 9 is a plan view of a corner molding element; FIG. 10 is a sectional view taken along the line 10-10 in FIG. 9; FIG. 11 is a fragmentary perspective view of the molding strips and corner piece in place; FIG. 12 is a front elevational view of a wall track; FIG. 13 is a sectional view taken along the line 13-13 in FIG. 12; FIG. 14 is front elevational view of a mounting clip; FIG. 15 is a sectional view taken along the line 15-15 in FIG. 14; FIG. 16 is an end view of a molding strip with a mounting clip attached; FIG. 17 is an end view of a molding strip mounted to a wall; FIG. 18 is a plan view of a modified corner molding element; FIG. 19 is a sectional view taken along the line 19-19 in FIG. 18; FIG. 20 is a fragmentary perspective view of the molding strips and corner piece attached to the walls; FIG. 21 is a front view of the mounting strips attached to the modified corner molding element shown in FIG. 18; and FIG. 22 is an exploded view of the molding strips and the modified corner molding element shown in FIG. 21. Detailed Description The invention provides a decorative molding strip made of molded plastic material such as polystyrene, for example, and is vacuum or pressure formed into flexible strips thin enough to flex lengthwise as well as about the width. FIGS. 1-8 show a first system for mounting various embodiments of the molding strip which comprises an adhesive attachment. FIG. 1 shows a first embodiment where molding strip 10 has a decorative front surface 12, a back surface 14 an upper edge 16 and a lower edge 18. A mounting means (to be explained later) is attached to the back surface 14 of the strip 10. The strip is then attached to a vertical wall (shown in phantom). The upper edge 16 fits snugly against the vertical wall at the point of intersection between the wall and the ceiling. The lower edge 18 is also resiliently held against the vertical wall. FIGS. 3-8 show several other embodiments of molding strips having various designs and contours. These figures illustrate mounting systems which are outside the scope of the present invention. The upper edges are angled outwardly from the wall to which the strip is mounted so as to engage the ceiling thus giving the appearance of angled corner molding as opposed to flat molding as appears in the embodiment of FIGS. 1 and 2. The only differences between the embodiments of FIGS. 3-8 are the decorative features of the front faces 24, 34, 44 and the angle of inclination of the upper edges 28, 38, 48. The upper edges 28, 38, 48 resiliently and snugly bear against the ceiling for firm engagement therewith. The upper edges may be flexed about their respective mounting means from the unflexed position (shown in phantom) prior to mounting to the final flexed position shown in solid lines in FIGS. 4, 6 and 8. The lower edges 30, 40, 50 are resiliently and snugly held against the vertical wall. One feature common to all of the above embodiments is that at least the upper edges, and preferably the lower edges, are flexed about the point of attachment to the wall. Regarding FIGS. 1 and 2, the flexing of the upper and lower edges 16, 18 would not be as dramatic as seen in the embodiments of FIGS. 3-8; however, enough flexing occurs to enable the upper and lower edges 16, 18 to be resiliently flexed into snug engagement with the vertical wall. FIGS. 9 and 10 show a corner molding element 52 used with molding strips of similar transverse configuration, the ends of which would either abut or, preferably, slightly overlap behind the ends 52a, 52b of the corner element 52 and which are secured thereto by adhesive means. For example, in FIG. 11 the ends of the molding strips S adjacent the corner element 52 are adhesively secured in overlapping engagement behind the ends 52a, 52b of the corner element. The corner piece is then supported by the molding strips and, as shown mounted to molding strips S in FIG. 11, is used to eliminate the requirement of mitering the ends of the molding strips for a corner fit. FIGS. 12-17 show the mounting system according to the present invention. This system comprises a wall track 56 (FIGS. 12, 13) and a plurality of short clips 60 (FIGS. 14, 15). The wall track 56 is comprised of a thin plastic piece which has a back surface 57 adapted to be mounted on a wall and a forward leading edge 58 spaced therefrom providing a gap between the leading edge 58 and the wall. The wall track 56 runs substantially the length of the molding strip to be mounted thereon. The upper edge of the wall track 56 abuts the ceiling to give the proper spacing to allow the upper edge 66 of the molding strip 64 to fit tightly against the ceiling. The wall track is mounted by any means, such as adhesive. The clips 60 (FIG. 15) are a thin piece of plastic adapted to be mounted to the back surface of a molding strip 64 at a point 61 (FIG. 15) at spaced locations therealong and have a forward edge 62 adapted to be received within the gap between the forward leading edge 58 of the wall track and the wall (FIG. 17). The leading edge 58 of the wall track is flexible about its mounting point 57 to receive the leading edges 62 of the clips in a snap action fit to resiliently but firmly hold the molding strip in place. As can be seen in FIG. 17, upper edge 66 is flexed about the point 61 at which the clip is mounted to the back surface of the molding strip. Similarly, the lower edge 68 is flexed about the same point to be snugly received against the vertical wall. One advantage of the embodiments of FIGS. 12-17 is that the molding strip 64 can be easily removed via the snap action fit to allow for painting, wallpapering or other decoration. Also, the molding strips of the above embodiments are flexible about their lengths as well as their widths to provide conforming engagement with uneven wall surfaces and to allow for expansion and contraction due to weather and/or temperature conditions. For instance, when mobile or modular homes are stored, the interior temperature can exceed 52°C (125°F). FIGS. 18-22 show a modified corner molding element 69 adapted for use with molding strips of similar transverse configuration. This embodiment comprises an upper corner element 70 and a lower corner element 72 attached along the apex A by securing means 71, such as an adhesive, leaving a small gap 73 between the upper and lower corner elements 70, 72. The gap 73 is adapted to telescopically receive ends of molding strips S having similar configurations to the corner molding pieces in snug and secure telescopic engagement (FIGS. 21, 22). For example, FIG. 22 shows the molding strips S and corner elements 70, 72 prior to connection. The ends of the strips S are then inserted into gap 73 (FIG. 19) at each end of the corner element 69 (FIG. 21). The resulting mounting arrangement for an outside corner appears in FIG. 20. However, it is understood that the corner molding element 69 is also adapted for use with an inside corner. The corner molding element is then supported by the molding strips S. It can thus be seen that a decorative molding mounting system has been provided that is flexible and able to conform to uneven wall surfaces, is easy to install, is easily removable for wallpaper application or painting and is less costly than wood moldings.

Claims: A decorative molding removably installed at the juncture of a ceiling and a vertical wall, said molding comprising: a molding strip (10, 22, 32, 42, 52, S) of flexible plastic having an upper free edge (16, 28, 38, 48), a lower free edge (18, 30, 40, 50), a front surface (12, 24, 34, 44) and a back surface (14, 26, 36, 46), said upper free edge (16, 28, 38, 48) being adapted to lie against one of said ceiling and said vertical wall, said lower free edge (18, 30, 40, 50) being adapted to lie against the other of said ceiling and said vertical wall, means for mounting said molding strip (10, 22, 32, 42, 52, S) at a point of attachment intermediate the upper free edge (16, 28, 38, 48) and the lower free edge (18, 30, 40, 50) of the molding strip to said ceiling or said vertical wall, said mounting means bridging over the distance between the point of attachment and the ceiling or the vertical wall and including an element fixed to the wall or ceiling and an element fixed to the molding strip, said elements having interengaging means at their free ends, characterized in that said wall or ceiling fixed element is a wall track (56) providing a gap between a free edge (58) thereof and the wall or ceiling, said element fixed to the moulding strip is formed by a plurality of flexible plastic clips (60) which have first ends (61) fixed to said molding strip and free ends (62), and in that said molding strip is so thin and its plastic so flexible that said upper free edge (16, 28, 38, 48) and said lower free edge (18, 30, 40, 50) conform to uneven wall surfaces and said free ends (62) of the clips (60) can be flexed toward said ceiling or said wall sufficiently to enter into said gap provided by said wall track (56), said free ends (62) and said free edge (58) providing said interengaging means which are sufficiently flexible to release said clips (60) for removal thereof and the molding strip connected thereto. The decorative molding set forth in claim 1 wherein said clip (60) and said track (56) are formed with undulated wall portions (62, 58). The decorative molding set forth in claim 1 or 2 comprising a corner molding (52, 69) having an upper corner element (70) and a lower corner element (72) having complementary cross-sectional configurations and joined together in a spaced relation forming a gap (73) at each end thereof, such that when said corner molding is mounted, an end of said molding strip (S) is received within the gap (73) formed by the upper and lower corner elements at each end thereof, respectively, so that said corner molding (69) is supported solely by said molding strips (S) at each end thereof. The decorative molding set forth in claim 3 wherein said corner molding accommodates an inside corner. The decorative molding set forth in claim 3 wherein said corner molding accommodates an outside corner. The decorative molding set forth in any one of claims 1 through 5 wherein said molding strip, clip and track are made of substantially the same thickness of plastic.

Inventors: LOGAN RICHARD, LOGAN, RICHARD
Applicants: MID AMERICA BUILDING PROD, MID-AMERICA BUILDING PRODUCTS CORPORATION
Application year: 1993
Main classification: E04F19
IPC codes: E04F19, E04F13