This invention relates to door hinges and a method of rehanging a door in a door frame so it does not sag.
Due to their weight, heavy doors will often sag due to the strain exerted on the hinges and the door frame or jamb on which the doors are hung. Most solid wood doors are connected to the door frame by three hinges. Gravity pulls downward on the door. For doors mounted to a frame by hinges on one side, the gravitational forces tend to pull the top of the door away from the hinge side of the frame and push the bottom of the door towards the hinge side of the frame.
The gravitational forces acting on the hinge leaves may cause the leaves of the top hinge to bend or distort. The leaf connected to the door is pulled away from the door jamb and the leaf of the hinge connected thereto such that the spacing between the leaves increases. In addition, the wood forming the door jamb at the top of the door frame on the hinge side, may also be pulled away from the framing to which it is attached such that the top corner of the door opposite the top hinge gradually pivots into engagement with the top part of the jamb opposite the hinges.
Similarly, as gravity pulls the bottom of the door downward and toward the side of the door frame to which the hinges are connected, the leaves forming the bottom hinge may be compressed, narrowing the gap between the leaves. In addition, the outwardly or horizontally directed component of the gravitational forces acting on the hinge mounted door tend to compress the portion of the jamb to which the bottom hinge is connected or pushes that portion of the jamb outward which gradually pulls the opposite side of the bottom of the door away from the jamb opposite the hinges.
The gap between the door and the jamb may be referred to as a reveal and a uniform reveal of approximately on quarter of an inch is preferably formed between the door and the jamb to allow the door to pivot out from the frame without hitting the jamb. When a door sags in the manner described above, the reveal between the top corner of the door and the jamb opposite the hinges is generally eliminated and the reveal between the top corner of the door and the jamb adjacent the hinges is widened. Similarly, the reveal between the bottom corner of the door and the jamb opposite the hinges widens and the reveal between the bottom corner of the door and the jamb adjacent the bottom hinge is narrowed.
Options for repairing a sagging door have included driving longer screws through the holes of the leaf of the top hinge connected to the jamb to draw the top part of the jamb to which the hinge is attached outward. It is also known to replace the standard hinges with an adjustable hinge such as the adjustable hinge shown in U.S. Pat. No. 8,490,246 in which the leaf attached to the door incorporates an adjustment mechanism to adjust the width of the gap between the leaves of the hinge when the door is closed. However, the adjustable leaf of this hinge and similar type hinges is relatively thick requiring routing out a recess in the door or a deeper recess in the jamb to receive the thicker leaf.
There remains a need for an easier option for repairing a sagging door that is inexpensive and is relatively easy to implement.
The present invention involves altering the reveal of a door by replacing one or more of the originally installed, conventional hinges with one or more replacement hinges of different spacing between the leaves of the hinges in the closed position in which the hinges extend in parallel alignment. The replacement hinges may be sold individually or as a kit comprising multiple replacement hinges with different spacing between the hinge leaves and with instructions on installing. The replacement hinges and method are particularly suited for use with relatively heavy wood or composite doors mounted on wood frames which may for an entry door for a residence or other solid core doors used in a residence. The replacement hinges used preferably comprise a first hinge or reduced gap replacement hinge having a reduced dimension gap between the leaves of the hinge when pivoted to a closed position in which the leaves extend in parallel, juxtaposed alignment including a reduced dimension gap which may be zero or no gap. The reduced gap replacement hinge is often used to replace the top hinge of a door which has sagged. The replacement hinges used may also include a second hinge or enlarged gap replacement hinge having a larger gap between the leaves of the hinge when pivoted to a closed position with the leaves extending in parallel, juxtaposed alignment.
The change in the width of the gap is created without changing the general size of the knuckles or the pivot pin forming the hinges. The gap formed between each of the hinges is fixed and not adjustable and replacement hinges of a variety of different gap spacing may be produced to accommodate a wide variety of adjustments to the spacing between the door and the jamb. Use of the hinges allows rehanging of a door relative to the door jamb to eliminate the sagging without having to change the mortise size in the door and the door jamb or without the use of wedges or shims. Once the hinges are replaced no further adjustment is necessary.
As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure. The drawings constitute a part of this specification and include exemplary embodiments of the present invention and illustrate various objects and features thereof.
Certain terminology will be used in the following description for convenience in reference only and will not be limiting. For example, the words “upwardly,” “downwardly,” “rightwardly,” and “leftwardly” will refer to directions in the drawings to which reference is made. The words “inwardly” and “outwardly” will refer to directions toward and away from, respectively, the geometric center of the embodiment being described and designated parts thereof. Said terminology will include the words specifically mentioned, derivatives thereof and words of a similar import.
A conventional hinge 1 for pivotally connecting a door 2 to a jamb 3 of a door frame 4 is shown in
Referring to
Referring to
In one approach to rehanging a door 2 that has sagged, only the top hinge 1a might be replaced with a reduced gap hinge 20. Replacing top hinge 1a with reduced gap hinge 20 will draw the top hinge side corner of the door 2 closer to the upper portion of the door jamb 3 on the hinge side and pull the opposite upper corner of the door 2 away from the door jamb 3 opposite the reduced gap hinge 20. This repair may be sufficient to correct the sagging of the door 2 and eliminate the binding of the door 2 with door jamb 3.
In an alternative approach, in addition to replacing top hinge 1a with reduced gap hinge 20, the bottom hinge 1c may be replaced with the enlarged gap hinge 30. Replacing bottom hinge 1c with an enlarged gap hinge 30, pushes the bottom, hinge side corner of the door 2 away from the door jamb 3 on the hinge side to produce a more consistent reveal between the door 2 and jamb 3 and reduce any binding between the bottom hinge side corner of the door 2 and the adjacent portion of the jamb 3. Typically, the middle hinge 1b will not be replaced.
When replacing the hinges 1a and 1c with reduced gap and enlarged gap hinges 20 and 30 respectively, the installer may reuse the screws used to secure hinges 1a and 1c to the door 2 and jamb 3. Alternatively, the installer may select slightly longer screws if preferred. Fastener receiving holes formed in the hinges 20 and 30 may be sized and spaced to correspond to fastener holes 14 of conventional hinges 1. It is also foreseen that the location of the fastener holes in the leaves 21 and 22 of reduced gap hinge 20 and the holes in the leaves 31 and 32 of the enlarged gap hinge 30 may be modified relative to the fastener holes 14 in leaves 7 and 8 of hinges 1, so that the fasteners used to connect the modified hinges 20 and 30 to the door 2 and jamb 3 bore into different portions of the door 2 or jamb 3.
A kit 50 consisting of a reduced gap hinge 20 and one or more additional replacement hinges having gaps 39 of a variety of widths with installation instructions may be distributed through selected channels such as retail hardware stores. The kit 50 shown in
Alternatively it is foreseen that reduced gap hinges 20 and enlarged gap hinges 30 may be sold individually depending on the installer's needs. Reduced gap and increased gap hinges 20 and 30 of a variety of leaf shapes and finishes may also be provided. For examples, leaves 21 and 22 and 31 and 32 may have square or rounded corners. The hinges 20 and 30 may be manufactured with a variety of finishes including brass or a silver finish. In addition, the number of fastener holes 14 formed in the leaves of the hinges 20 and 30 may vary.
It is to be understood that while certain forms of the present invention have been illustrated and described herein, it is not to be limited to the specific forms or arrangement of parts described and shown. As used in the claims, identification of an element with an indefinite article “a” or “an” or the phrase “at least one” is intended to cover any device assembly including one or more of the elements at issue. Similarly, references to first and second elements is not intended to limit the claims to such assemblies including only two of the elements, but rather is intended to cover two or more of the elements at issue. Only where limiting language such as “a single” or “only one” with reference to an element, is the language intended to be limited to one of the elements specified, or any other similarly limited number of elements.
This application claims the benefit of U.S. Provisional Patent Application No. 62/160,407, filed May 12, 2015, the disclosure of which is hereby incorporated herein in its entirety by reference.
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Number | Date | Country | |
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62160407 | May 2015 | US |