US 5,363,617 AGrant
Corner Protector Assembly and Retainer Clip Therefor
Issue Date:1994-11-15
•18 Claims
•2 Drawing Sheets
Abstract
A protector assembly for corners includes a cover member applied to the corner so that it engages several retainer clips fastened to the wall. The retainer clips have outwardly extending tang portions adapted to engage the cover member, and further include deformation reduction means in the form of slots in the body portions thereof which substantially reduce any tendency of the retainer clips to extend away from the wall surface.
Metadata
Inventor
- Donald W. Miller
Application Information
Application Number:US 1032003
Filing Date:1993-08-09
Priority Date:1991-06-19
Art Unit:354
Classifications
IPC:
F04B 500
Field of Search:
52403248288.1;254;287.1;255;232;718.01;718.04403;402;401;23345.1;300;220.1
Patent Drawings (2 sheets)
Description
Background and Summary of the Invention
The present invention is directed to a protector assembly and, more particularly, to an assembly for protecting corners.
Corner protector devices are well-known in the art and typically employ a protective member which is secured to the corner surfaces by either adhesive means or by fasteners. These prior devices have several disadvantages. One disadvantage for adhesively mounted corner protectors is that an impact on the protective member may impart a sufficiently large force which overcomes the adhesive force between the wall and the corner member such that it moves out of place on the corner. The adhesives used sometimes deteriorate over time. Also, adhesively mounted systems cannot be easily removed once installed. A further disadvantage is the difficulty sometimes encountered in selecting the correct adhesive for a given application.
Another prior arrangement for protecting corners uses visible fasteners which pass through an opening in a protective member to fasten the member to the corner. These systems suffer several disadvantages. The exposed fasteners may present an unattractive appearance. Two other disadvantages are the requirement of either preplacement of drill holes in the wall corner for receiving the fasteners or holding the member in place while holes are drilled in the wall corner. Another disadvantage is the difficulty, especially when the member extends the entire height of the corner, in holding the member in place while the fasteners are applied.
Other corner protection arrangements utilize a member which is supported by one or more retainer clips or brackets which are fastened to the corner and which are concealed from view by the cover member. Typically, these clips or brackets engage open end portions of the cover member to support the cover member. These protector arrangements also suffer from several inherent disadvantages. Where the clips are non-resilient, such as an aluminum extrusion or stamping, it is very difficult to engage the cover member on the retainer clips without sliding the cover member carefully along the corner to ensure that the non-resilient clips engage the appropriate cover member engagement surfaces and thus the cover member must be made in sections, rather than in one-piece, to allow the proper installation thereof. Where the clips are made of a resilient material, such as spring steel, care must be taken when fastening the resilient clip to the wall surface, because overtightening or overdriving the fastener causes the clip to deform or flex outwardly from the wall surface. Because the retainer clip holds the cover member in place, the cover member consequently also flexes outwardly from the wall surface, leaving an unsightly appearance. The edges of the cover member then extend away from the wall which increases the possibility that clothing or an object may catch on the edge and cause the inadvertent removal of the same. If the outward flexure of the retainer becomes too pronounced, the retainer clip may not properly engage the cover member.
The present invention is therefore directed to a corner protector assembly which overcomes the aforementioned disadvantages. The corner protector assembly of the present invention substantially eliminates the likelihood of occurrence of flexure of the clip when it is fastened to the underlying wall so that the cover member is consistently engaged in a secure fashion. This is accomplished by providing an elongated corner member having inturned edges at its free ends which engage free ends of a retainer clip fastened to the corner wall. The retainer clip has an opening disposed in its wall engaging portions which interrupts the transmission of any flexural forces to keep them from acting on the retainer clip to flex it outwardly from the corner surfaces. Additionally, the present invention includes a retainer clip which substantially prevents sliding of the cover member, when installed, in an upward or downward direction.
Accordingly, it is a general object of the present invention to provide an improved corner protector assembly having an outer cover member which engages one or more resilient retainer clips affixed to the corner by fasteners in which the likelihood of the retainer clips flexing outwardly and away from the corner is substantially reduced.
Another object of the present invention is to provide an assembly for protecting corners in which the assembly includes a cover member which is applied to the corner and several retainer clips which are fastened to the wall, the retainer clips having outwardly extending tang portions which are adapted to engage the cover member and which retainer clips include deformation reduction means which substantially reduces any tendency of the retainer clips to extend away from the wall surface because of tightening of the fasteners during installation.
Still another object of the present invention is to provide an improved retainer clip for use with a corner protector assembly, wherein the retainer clip has two leg portions which angularly intersect at an apex of the clip, the leg portions having outwardly extending tang portions at the outboard ends thereof, the leg portions further having flexure reduction means in the form of lateral slots disposed between the tang portions and fasteners, the slots substantially preventing the retainer clip leg portions from separating away from the wall surfaces to which they are attached.
Yet another object of the present invention is to provide a corner protection system which includes an elongated cover member, a plurality of cover member retaining means in the form of angled clip members, each of the clip members having two wall engaging portions and cover member engaging portions, the wall engaging portions each including a transverse slot or similar opening disposed therein adjacent to a fastener therefor and between the fastener and the cover member engaging portions.
These and other objects, features and advantages of the present invention will be more clearly understood upon consideration of the detailed description of the preferred embodiments of the invention which will be described to follow.
Brief Description of the Drawings
In the course of this description, reference will frequently be made to the attached drawings in which:
FIG. 1 is a perspective view of a corner protector assembly constructed in accordance with the principles of the present invention and in which the corner protector assembly is shown in combination with a wall corner;
FIG. 2 is an exploded perspective view of the arrangement in accordance with FIG. 1, additionally including an end cap member;
FIG. 3 is a cross-sectional view of the corner protector assembly of FIG. 1 taken along line 3--3;
FIG. 4 is a cross-sectional view of a corner protector assembly representative of the prior art wherein the retainer clip has no flexure reduction means;
FIG. 5 is a plan view of a second embodiment of a retainer clip for a corner protector assembly constructed in accordance with the principles of the present invention; and
FIG. 6 is a perspective view of the retainer clip of FIG. 5.
Description of the Preferred Embodiments
A first embodiment of a corner protector assembly 10 constructed in accordance with the principles of the present invention for mounting on corner surfaces is illustrated in FIG. 1, wherein the protector assembly 10 is shown installed on a wall corner 11 defined by the intersection of two exterior wall surfaces 12 and 14.
The corner protector assembly 10 may be used on corners formed from plaster, sheetrock walls, prefabricated partitions, brick, concrete block, wood paneling and the like, as well as any other suitable building material. Provided that the underlying surface or structure is one to which the retainer clips 30 can be attached, the present invention can be used on virtually any type of wall construction.
Returning to FIGS. 1 and 2, the corner protector assembly 10 includes an exterior cover member 20 which engages one or more retaining means, shown as retainer clips 30. The clip 30 is attached to the wall surfaces 12, 14 by way of any suitable fastener means, shown as mounting screws 40. The clip 30, at its outermost ends 80, engages inturned ends 24, shown as abutments or shoulders 26, which define two respective clip engaging surfaces 27 within the cover member 20.
The cover member 20 is preferably formed from a durable material, such as plastic or metal, and may extend for substantially the entire extent, or height, or for a preselected extent of the corner 11. In this regard, the cover member 20 is defined by two generally planar wall surface protection or covering portions 21, 22 which intersect at their innermost ends to form a corner 23 which has generally the same angle as that of the wall corner 11. At its outermost ends and as mentioned above, the cover member 20 has a pair of inturned edges 24 which extend inwardly to define a pair of shoulders 26, each shoulder having a clip engaging surface 27 disposed thereon against which the retainer clip ends 80 bear. (FIG. 3.)
Turning now to the details of the retainer clip 30, and in particular FIG. 2, it can be seen that the retainer clip 30 forms an angled member which angle approximates the wall corner 11 formed by the wall surfaces 12 and 14. In this regard, the retainer clip 30 includes two laterally extending leg portions 31, 32 which are bent along a central apex 33 of the clip 30 to define its desired angle. Each of the clip leg portions 31, 32 have separate wall engaging portions 34 and 35 and cover engaging portions 36,37. The cover member engaging portions 36,37 include tangs 38 and 39 which extend outwardly from the plane of the wall engaging portions defined by the clip leg portions 31 and 32, preferably having a general angle .phi. of about 35.degree.. As shown in FIGS. 1 and 2, these tangs 38 and 39 have generally curved end faces or profiles 90 and 91. As will be discussed later, these tangs 38 and 39 engage the clip engaging surfaces 27 of the cover member 20.
The wall engaging portions 34, 35 include interior wall engagement surfaces 50, 51 which are generally planar and which face the wall corner 11. They are supported flush against the corner wall surfaces 12 and 14 by mounting screws 40. The wall engaging portions 34, 35 of the clip 30 include apertures or openings 52 which accommodate the mounting screws 40. Adhesive means in the form of double-faced pads 85 may be applied to the clip leg portions 31, 32, which pads 85 provide additional retention capability, especially in a vertical plane, to the clip 30.
The retainer clips 30 have a slightly smaller width than the cover member 20 and thus it and the fasteners 40 associated therewith are housed within the cover member 20 and are entirely concealed from view, thus presenting an attractive appearance, despite fully exterior mounting of the arrangement upon the finished wall.
In an important aspect of the present invention, the retainer clip 30 is provided with means for reducing any substantial deformation imparted to the clip 30 during the mounting process. As noted above, the retainer clip 30 and its two extending wall engagement surfaces 50, 51 are intended to be mounted flush against the outer surface of the corner wall surfaces 12 and 14.
As shown best in FIG. 4 (a cross-sectional view of a conventional corner protector assembly 2 having a cover member 3 and a retainer clip 4), when assembly fasteners 5 are tightened or driven into underlying wall surface 6, there is a tendency for the retainer clip ends 7 to "spring" or flex outwardly away from the wall surface so that the wall engaging portions 8 of the clip 4 extend outwardly away from the wall at an angle .THETA.. When so flexed as in FIG. 4, the cover member 3 fails to mount substantially flush of the wall 6, which detracts from the appearance thereof. Additionally, because the ends of the cover member 3 project outwardly, someone or something passing the cover member 3 may catch the ends thereof and pull it off its mounting. This flexing tendency is seen mostly in inherently resilient retainer clips such as those stamped from a spring steel or molded from a plastic. This flexure occurs because the fastener 5 forces the wall engaging portions 8 into flush contact with the corner walls 6 only around the fastener opening 9, the head of the fastener thereby imparting a localized compressive force therearound. The natural reaction of a resilient material is to flex outwardly (or away from the wall surface) at the end 7 of the clip 4. This tendency of the clip 4 to spring outwardly is even more exaggerated when the fastener 5 is overtightened, thereby increasing the angle .THETA..
Overtightening of the fasteners 5 into the underlying wall 6 may cause severe or permanent deformation such as dimpling to occur in the wall engaging portions 8 of the clip 4, which deformation results in distortion or flexing of the clip wall engaging portions 8 which leaves a gap between the clip 4 and the wall. If the outward flexure of the clip wall engaging portions 8 becomes too pronounced, the clip 4 may fail to engage the cover member 3.
The present invention avoids this problem by flexure reduction means in the form of an opening 54, shown as a slot 56, which extends transversely from either of a first or second edge 92 or 93, respectively, of the clip 30 into the bodies, of the two wall engaging portions 34,35. Preferably, these slots 56 are disposed adjacent the fastener openings 52 between the openings 52 and the outermost tangs 38,39. These slots 56 extend down into the body of the wall engaging portions 34,35 a depth D, which is equal to or greater than the distance C, which is the distance from the clip edges 92,93 to the centerline of the fastener openings 52. Preferably as shown in FIGS. 1 and 2, the wall engaging portion 34 has one slot 56 extending therein from a first edge 92 and the second wall engaging portion 35 has a second slot 56 extending therein from the second and opposite edge 93.
These slots 56 extend well into the area wherein flexure occurs due to tightening of the mounting screws 40. Thus, if the screws 40 are overtightened, any dimpling that results which ordinarily causes the clip ends 80 to flex away from the wall surfaces 12, 14 transmits a flexural force along the wall engaging portions 34,35 toward the ends of the same. This flexural force is interrupted by the slots 56.
In installation, the cover member 20 is applied to the retainer clip 30 after the proper number of retainer clips 30 have been fastened to the wall. One of the cover abutments or shoulders 26 of the cover 20 is engaged with one of the clip ends 38 and the central portions 23 of the cover 20 is then forced inwardly toward the wall to allow shoulder 26 to engage the remaining clip end 39 to snap the cover into place on the wall. Thus, the cover 20 is easily and quickly applied to the retainer clip 30.
As shown in FIG. 2, the protector assembly 10 may also include an end molding or cap 60 which is mated to the longitudinal ends of the cover member 20 by way of channels 62 and 64.
A second embodiment of a retainer clip 100 constructed in accordance with the principles of the present invention is shown in FIGS. 5 and 6. The retainer clip 100 has angularly extending legs 102, 104, each of which include a wall engaging portion 106, 108 extending from the apex 110 of the clip 100 up to a cover engaging portion 112, 114. The cover engaging portions 112, 114, are bent slightly outwardly from the wall engaging portions 106, 108 and include, at their respective outermost edges 113, 115, angled surfaces 116, 118 having a general angle of about 15.degree.. As seen best in FIG. 6, these angled surfaces are reversed with respect to each other, that is, one surface 116 is angled downwardly while the other 118 is angled upwardly such that they extend in opposite directions. In such a construction, the angled surfaces 115, 118 serve to "bite" into the internal edges of the cover member 20 and thereby prevent the cover member 20 from sliding on the retainer clips 100.
It will be understood that the embodiments of the invention which have been described are merely illustrative of the principles of the present invention. Numerous modifications may be made by those skilled in the art without departing from the true spirit and scope of the invention.
Claims
I claim:
1. A retainer clip for retaining a corner protector on a corner wherein the corner protector includes an elongated corner cover member having an angular configuration approximately equal to that of the corner, and wherein the corner cover member has shoulder portions defining retainer clip engagement surfaces of said corner cover member, said retainer clip comprising: a resilient angle member, the angle member having two leg portions extending outwardly from an apex of said angle member, corner wall engaging portions of said leg portions being adapted to contact intersecting angled surface of said corner, said leg portions further including corner cover member engagement portions further having end faces which extend outwardly from a plane defined by said corner wall engaging portion, and are adapted to supportingly engage said retainer clip engagement surfaces, the retainer clip further including flexure reduction means in the form of an interruption of said corner wall engaging portions which extends from a side edge of said leg portion into an area of flexure of said corner wall engaging portions, the interruption disposed between said corner wall engaging portion and said corner cover member engagement portion.
2. The retainer clip of claim 1, wherein said flexure reduction means includes a slot disposed between said corner wall engaging portion and said corner cover member engagement portion.
3. A member for retaining a corner protector on a corner wherein the corner protector includes an elongated corner cover member having an angular configuration which covers a portion of the corner, and wherein the corner cover member has shoulder portions defining engagement surfaces of said corner cover member, said retaining member comprising: two elongated leg portions joined together to define an apex thereof and extending outwardly therefrom to define a predetermined angle, at least one of said leg portions having an attachment area defined therein which is adapted for attachment to said corner by a fastener, each of said leg portion includes an end portion having a tap, said one leg portion further including a discontinuity, the discontinuity being disposed proximate to the attachment area and further between said attachment area and said tap, said discontinuity reducing flexure of said leg portion when the fastener is applied to said leg portion to attach said retaining member to said corner.
4. The retaining member of claim 3, wherein said discontinuity includes slot means.
5. The retainer member of claim 4, wherein said attachment area includes an opening extending through said one leg portion, said opening being spaced a first predetermined distance from an edge portion of said one leg portion and said slot means extending from side edge portion into said one leg portion for a second predetermined distance greater than said first predetermined distance.
6. The retaining member of claim 3 wherein, said tangs have generally angular end profiles adapted to engage said cover member engagement surfaces.
7. The retaining member of claim 3, further including adhesive means disposed on said retainer member, the adhesive means providing adhesive contact between said retainer member and said cover member.
8. The retaining member of claim 3, wherein said retaining member is formed from a resilient metal.
9. The retaining member of claim 3, wherein said retaining member is formed from a resilient plastic.
10. The retaining member of claim 3, wherein said leg portions define an acute angle.
11. The retaining member of claim 3, wherein said leg portions approximately define a right angle.
12. The retaining member of claim 3, wherein said leg portions define an obtuse angle.
13. A retainer clip for retaining a corner protector on a corner wherein the corner protector includes an elongated corner cover member having a configuration which covers a portion of the corner when applied thereto, the cover member having two leg portions joined together at an apex thereof, each of the leg portions having an inturned shoulder portion which defines an engagement surface of said cover member which engages a retaining clip, said retaining clip comprising: two laterally extending leg portions angularly disposed with respect to each other, the two leg portions joined together at an apex of said clip, said leg portions further having a wall engaging portion extending outwardly from said clip apex to a cover member engaging portion, said wall engaging portions being adapted to be secured to said corner by at least one fastener extending through a fastener opening disposed in an associated body portion of said wall engaging portion, said cover member engaging portions extending angularly outward with respect to said wall engaging portions and being adapted to engage said shoulder portions of said cover member; means for reducing flexure in said wall engaging portions of said retainer clip including a slot disposed in each of said leg portions adjacently outwardly of said fastener opening, said slots extending into said wall engaging body portions from side edges of said leg portions for a first predetermined distance which is at least equal to a second predetermined distance between said side edge of said leg portion and said fastener opening, whereby the tendency of said retainer clip leg portions to flex outwardly from said corner when said fastener secures said retaining clip to said corner is substantially eliminated.
14. The retainer clip of claim 13 further including two end portions, each of said end portions having a tang.
15. The retainer clip of claim 14 wherein said tangs have generally angular end profiles adapted to engage said corner member engagement surfaces.
16. The retainer clip of claim 13, further including adhesive means disposed on said retainer clip, the adhesive means providing adhesive contact between said retainer clip and said cover member.
17. The retainer clip of claim 13, wherein said retainer clip is formed from a resilient metal.
18. The retainer clip of claim 13, wherein said retainer clip is formed from a resilient plastic.
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