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An improved method of building a wooden door frame in a door opening of a building without shimming, and a precut and pre-assembled combination of wooden lintel and side post miter end assemblies, each comprising a jamb member with permanently installed outwardly extending mouldings, and if necessar

An improved method of building a wooden door frame in a door opening of a building without shimming, and a precut and pre-assembled combination of wooden lintel and side post miter end assemblies, each comprising a jamb member with permanently installed outwardly extending mouldings, and if necessary a longitudinally extending doorstop on the main outer surface of the jamb member. The miter ends of the assemblies are precut at 45 degrees at the point of manufacture when all their wooden components have been permanently assembled together, each assembly has a longitudinally extending wide shallow groove for miter L-shaped clips whose horizontally disposed arms are secured to the lintel assembly prior to erection. The free arms of the L-shaped clips extend downwardly away from the lintel mouldings but as close as possible from the ends of the lintel assembly whereby, once the lintel assembly has been horizontally secured in place to the horizontal stud of a partition to be framed, the vertical arms of the L-shaped clips are received in the groove of the jamb member of each side post assembly to guide same so as to provide a perfect miter with minimum effort and time on the part of the carpenter. A cross-piece adjacent the miter end of each jamb member prevents warping thereof and defines, with the shallow groove that it bridges, a slot for receiving the free arm of the corresponding L-shaped clip.

대표청구항 ▼

A knocked down door frame comprising three factory made assemblies made of wood components and hardware means and designed to be readily mounted without shim means to a wall opening in a building, which opening is defined by a horizontal stud and two vertical spaced apart studs, said assemblies cons

A knocked down door frame comprising three factory made assemblies made of wood components and hardware means and designed to be readily mounted without shim means to a wall opening in a building, which opening is defined by a horizontal stud and two vertical spaced apart studs, said assemblies consisting of a lintel assembly adapted to be secured adjacent said horizontal stud and two side post assemblies adapted to be secured to said vertical studs respectively, each side post assembly comprising a door jamb member of constant, generally rectangular cross-section having a main planar outer surface, an inner surface, an outer side edge and an inner side edge, an outer jamb moulding permanently secured along one of its margins to said outer side edge so as to substantially cover same and extend in the plane of said outer side edge away from said main planar outer surface, an inner jamb moulding permanently secured along one of its margins to said inner side edge so as to substantially cover same and extend in the plane of said inner side edge away from said main planar outer surface, said lintel assembly comprising the combination of a lintel member whose cross-section is identical to that of said door jamb member having a main outer surface, an inner surface, an outer side edge and an inner side edge, an outer lintel moulding having the profile and transverse dimensions of said outer jamb mouldings, permanently secured to the outer side edge of said lintel member in the same position as in the case of said outer jamb mouldings, and an inner lintel moulding having the profile and transverse dimensions of said inner jamb mouldings, permanently secured to the inner side of said lintel member in the same position as in the case of said inner jamb mouldings, wherein both ends of said lintel assembly are pre-cut at the point of manufacture at exactly 45 degree angles with respect to the main outer surface of said lintel member so as to produce miter ends, wherein the upper end of each side post assembly is pre-cut at the point of manufacture at an angle of exactly 45 degrees with respect to the main outer surface of the respective door jamb member so as to produce a miter end thereat, whereby at every miter end of each assembly every component thereof terminates in a commo plane which extends across the assembly at an angle of 45 degrees with respect to the corresponding main outer surface, wherein said inner surface of the door jamb member of each side post assembly and the inner surface of the lintel member of said lintel assembly have a longitudinally extending shallow, wide groove of rectangular cross-section extending at least in the region of every miter end and reaching the corresponding common plane, which groove is preferably disposed centrally of the width of the corresponding inner surface, wherein said hardware means comprises a rigid cross-piece for every miter end to be secured transversally of said groove so as to bridge same close to the corresponding miter end and an L-shaped clip to be mounted at each miter end of said lintel assembly, each L-shaped clip having a first and a second flat arms defining an angle of about 90 degrees, the first arm being adapted to be secured prior to erection of said door frame in the groove of said lintel assembly under said cross-piece with the second arm extending generally perpendicularly of the main outer surface of said lintel assembly away from said inner and outer lintel mouldings, said second flat arm being adapted to fit closely into the groove of the miter end of the adjacent side post assembly under the corresponding cross-piece upon erection of said door frame.