U.S. patent number 3,812,621 [Application Number 05/304,148] was granted by the patent office on 1974-05-28 for adjustable door frame assembly.
This patent grant is currently assigned to Ragland Manufacturing and Construction Company. Invention is credited to Douglas Ragland.
United States Patent |
3,812,621 |
Ragland |
May 28, 1974 |
ADJUSTABLE DOOR FRAME ASSEMBLY
Abstract
The present invention comprises an adjustable door frame
assembly in which the weight of the door is carried by hidden
support means rather than the door facing. The support means are
enclosed by overlapping L-shaped jamb members which are
telescopically adjustable to accommodate walls of varying
thicknesses. The interfaces between the adjustable pieces, as well
as the attachment means for attaching said pieces together, are
hidden so as to enhance the beauty of the door frame.
Inventors: |
Ragland; Douglas (Houston,
TX) |
Assignee: |
Ragland Manufacturing and
Construction Company (Houston, TX)
|
Family
ID: |
23175273 |
Appl.
No.: |
05/304,148 |
Filed: |
November 6, 1972 |
Current U.S.
Class: |
49/505; 52/210;
52/212 |
Current CPC
Class: |
E06B
1/20 (20130101) |
Current International
Class: |
E06B
1/12 (20060101); E06B 1/20 (20060101); E06b
001/04 () |
Field of
Search: |
;49/505
;52/210,211,212,215,217 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Downey; Kenneth
Attorney, Agent or Firm: Browning; Ralph R. Bushman; C.
James
Claims
I claim:
1. An adjustable door frame assembly for an opening in a wall
comprising:
side support means secured to said wall on at least one side of
said opening, said side support means having an inner surface
facing said opening;
first and second side frame sections mounted on opposite sides of
said opening, said first side frame section being superimposed over
said support means, each of said side frame sections including a
first L-shaped side jamb member having a side jamb leg extending
into said opening and a side casing leg extending away from said
opening along one side of said wall, a second L-shaped side jamb
member having a side jamb leg extending into said opening and
partially overlapping the side jamb leg of said first side jamb
member and a side casing leg extending away from said opening along
the other side of said wall, said first and second side jamb
members being relatively movable in a direction to vary the
distance between said side casing legs, said first side frame
section having at least one hinge aperture in the side jamb leg of
one of its side jamb members exposing a portion of the inner
surface of said side support means, the side jamb leg of the first
side jamb member of said first side frame section having a
substantially planar rear surface lying against said inner surface,
and the side jamb leg of the second side jamb member of said first
side frame section being spaced from said inner surface by spacing
members located therebetween and having substantially the same
thickness as the side jamb leg of the first side jamb member of
said first frame section;
a header frame section extending between said side frame sections,
said header frame section including a first L-shaped header jamb
member having a header jamb leg extending into said opening and a
header casing leg extending away from said opening on said one side
of said wall, a second L-shaped header jamb member having a header
jamb leg extending into said opening and partially overlapping the
header jamb leg of said first header jamb member and a header
casing leg extending away from said opening on said other side of
said wall, said first and second header jamb members being
relatively movable in a direction to vary the distance between said
header casing legs;
header attachment means for securing said first and second side
jamb members together;
means for securing said side jamb members in said opening; and
means for securing said header jamb members in said opening.
2. A door frame assembly according to claim 1 including two such
side support means located on opposite sides of said opening
adjacent respective ones of said side frame sections.
3. A door frame assembly according to claim 2 wherein the side jamb
leg of the first side jamb member of said second side frame section
lies against the adjacent inner surface and the side jamb leg of
the second side jamb member of said second side frame section is
spaced from said inner surfaces by spacing members located
therebetween and having substantially the same thickness as the
side jamb leg of the first side jamb member of said second side
frame section.
4. A door frame assembly according to claim 1 wherein the side jamb
leg of one of the side jamb members of each side frame section and
the header jamb leg of one of said header jamb members include
door-stop means.
5. A door frame assembly according to claim 2 wherein said side
support means each have opposite side surfaces lying along said
side casing legs and are each comprised of two scarfed pieces
laterally extensible in a direction to vary the distance between
said side surfaces.
6. A door frame assembly according to claim 2 wherein said support
means are slightly wider than the thickness of said wall and have
opposite side surfaces which extend into support raceways formed in
said side jamb members.
7. A door frame assembly according to claim 2, further comprising a
header support means, said header frame section being superimposed
over said header support means, and said header support means
having an inner surface facing said door opening.
8. A door frame assembly according to claim 1 wherein said header
frame section and said side frame sections have adjoining mitered
ends connected by L-shaped clips disposed in clip raceways formed
in the side and header casing legs at said mitered ends.
9. A door frame assembly according to claim 4 wherein said
door-stop means are located along the edges of the side jamb legs
of said second side jamb members and the side header leg of said
second header jamb member, each of said door-stop means having a
channel facing said door opening, wherein said header attachment
means and said side attachment means are located in said channels,
and wherein said door frame assembly further includes flexible
strips in said channels covering said header attachment means and
said side attachment means.
10. A door frame assembly according to claim 9 wherein said side
attachment means and said means for securing said side jamb members
in said opening are the same and are comprised of means securing
the overlapped portions of said side jamb legs to said support
means.
11. In combination with a wall having an opening therein, an
adjustable door frame assembly comprising:
side support means secured to said wall on at least one side of
said opening, said side support means having an inner surface
facing said opening;
first and second side frame sections mounted on opposite sides of
said opening, said first side frame section being superimposed over
said side support means, each of said side frame sections including
a first L-shaped side jamb member having a side jamb leg extending
into said opening and a side casing leg extending away from said
opening along one side of said wall, a second L-shaped side jamb
member having a side jamb leg extending into said opening and
partially overlapping the side jamb leg of said first side jamb
member and a side casing leg extending away from said opening along
the other side of said wall, said first and second side jamb
members being relatively movable in a direction to vary the
distance between said side casing legs, one of said side jamb
members of said first side frame section having at least one hinge
aperture in said side jamb leg exposing a portion of said inner
surface of said side support means wherein said side support means
extends along a major portion of the length of said first side
frame section;
a header section extending between said side frame sections and
mounted across the top of said door opening, said header section
including a first L-shaped header jamb member having a header jamb
leg extending into said opening and a header casing leg extending
away from said opening on one side of said wall, a second L-shaped
header jamb member having a header jamb leg extending into said
opening and partially overlapping said header jamb leg of said
first header jamb member and a header casing leg extending away
from said opening on the other side of said wall, said first and
second header jamb members being relatively movable in a direction
to vary the distance between said header casing legs;
header attachment means for securing said first and second header
jamb members of said header section together;
side attachment means for securing said first and second side jamb
members together;
means for securing said side jamb members in said opening; and
means for securing said header jamb members in said opening.
12. The combination of claim 11 further comprising a door mounted
in said door opening, and a hinge having a first leaf mounted in
said hinge aperture and rigidly attached directly to said exposed
portion of said inner surface of said side support means, and a
second leaf rigidly attached to said door.
13. The combination of claim 11 wherein said wall includes a pair
of substantially parallel spaced-apart sections connected by a
channel-shaped stud having a web surface extending between said
sections adjacent each side of said door opening, and wherein said
side support means are rigidly attached to said webs.
14. The combination of claim 11 wherein said wall is solid and has
plane edge surfaces along the sides of said door opening, and
wherein said side support means are shot to said edge surfaces.
15. An adjustable door frame assembly for an opening in a wall
comprising:
side support means secured to said wall on at least one side of
said opening, said side support means having an inner surface
facing said opening;
first and second side frame sections mounted on opposite sides of
said opening, said first side frame section being superimposed over
said support means, each of said side frame sections including a
first L-shaped side jamb member having a side jamb leg extending
into said opening and a side casing leg extending away from said
opening along one side of said wall, a second L-shaped side jamb
member having a side jamb leg extending into said opening and
partially overlapping the side jamb leg of said first side jamb
member and a side casing leg extending away from said opening along
the other side of said wall, said first and second side jamb
members being relatively movable in a direction to vary the
distance between said side casing legs, one of the side jamb
members of said first side frame section having at least one hinge
aperture in said side jamb leg exposing a portion of the inner
surface of said side support means wherein said side support means
extends along a major portion of the length of said first side
frame section;
a header frame section extending between said side frame sections,
said header frame section including a first L-shaped header jamb
member having a header jamb leg extending into said opening and a
header casing leg extending away from said opening on said one side
of said wall, a second L-shaped header jamb member having a header
jamb leg extending into said opening and partially overlapping the
header jamb leg of said first header jamb member and a header
casing leg extending away from said opening on said other side of
said wall, said first and second header jamb members being
relatively movable in a direction to vary the distance between said
header casing legs;
header attachment means for securing said first and second side
jamb members together;
means for securing said side jamb members in said opening; and
means for securing said header jamb members in said opening.
16. A door frame assembly according to claim 15 wherein said side
support means extends from below said hinge aperture upwardly to a
level above a lower edge of said header frame section.
17. A door frame assembly according to claim 16 including two such
side support means located on opposite sides of said opening.
18. A door frame assembly according to claim 17 further comprising
a header support means, said header frame section being
superimposed over said header support means, and said header
support means having opposite ends abutting respective upper ends
of said side support means.
Description
BACKGROUND OF THE INVENTION
The present invention relates to adjustable frame assemblies and
particularly adjustable door frames.
Applicant's prior U.S. Pat. No. 3,676,966 discloses a door frame in
which the weight of the door is borne by hidden support means and
ultimately by the wall. The facings, i.e. the door jambs and
casings, are attached to the support means by hidden attachment
means, and the frame is vertically adjustable to door openings of
varying heights. To the extent that the features of applicant's
prior door frame can be incorporated into frames according to the
present invention, the disclosure of U.S. Pat. No. 3,676,966 is
herein expressly incorporated by reference.
It frequently happens that when a wall is provided with a door
opening, variations in thickness of the wall occur around the
opening. Accordingly, door frame assemblies made to conform to a
standard thickness wall will not fit as desired and consequently
the aesthetic appearance not only of the door frame assembly but of
the entire room is diminished. Also, it not infrequently happens
that in large office buildings and commercial structures wherein
there is frequent remodeling, to accommodate various floor plans,
doors in an existing wall structure will be utilized in the
remodeled structure. Obviously, if the thickness of the walls in
the remodeled floor plan is different from that of the original
floor plan, new door frame assemblies must be purchased.
U.S. Pat., No. 3,324,599 to Brost, shows a door frame assembly
which is adjustable; however, the door frame is relatively
complicated, being composed of many parts. Thus it is more
difficult and expensive to manufacture, assemble and disassemble.
Furthermore the arrangement shown in the Brost patent places the
weight of the door directly on the visible facing or jamb.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a
simple door frame assembly, adjustable to various wall
thickness.
It is another object of the invention to provide an adjustable door
frame assembly in which the weight of the door is borne by hidden
support means.
Another object of the invention is to provide an adjustable door
frame assembly having a minimum number of parts.
Still another object of the invention is to provide an adjustable
door frame assembly requiring minimum time for assembly and
disassembly.
Yet another object of the invention is to provide an adjustable
door frame assembly with hidden adjustment means.
Applicant's present invention comprises an improvement in door
frames such as those shown in his prior patent whereby the frame is
adjustable to accommodate walls of varying thicknesses.
The door frame assembly herein is comprised of side frame sections,
each of which includes a pair of overlapping or telescoping
L-shaped jamb members. At least one of the side frame sections is
superimposed over support means secured to the wall. Jamb legs of
the jamb members extend into the door opening and overlap while
casing legs extend away from the opening on opposite sides of the
wall. The overlapping jamb members are movable relative to each
other in a direction to vary the distance between the two casing
legs and thus accommodate various wall thicknesses.
One of the side jamb legs of the frame section which encases the
support means has a hinge aperture therein to expose a portion of
the support means, whereby a hinge leaf can be attached directly to
the support member and thus allow the weight of the door to be
borne by the hidden support means, and ultimately by the wall
itself, rather than by the jamb members.
A header frame section mounted between the side frame sections at
the top of the opening also comprises a pair of L-shaped jamb
members having overlapping jamb legs and opposed casing legs. The
header jamb members are adjustable in essentially the same manner
as the side jamb members.
Means are provided for attaching the overlapping pairs of jamb legs
together and for securing all parts of the frame assembly in the
door opening.
The above and other features, objects and advantages of the
invention will be made apparent by the following detailed
description of a preferred embodiment, by the drawings and the
claims.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the hinge side and header of a door
frame assembly according to the invention, with parts broken
away.
FIG. 2 is a perspective view of the support means of the hinge side
of the door frame assembly.
FIG. 3 is a perspective view of the support means of the strike
side of the door frame assembly.
FIG. 4 is a cross-sectional view taken along the lines 4--4 of FIG.
1.
FIG. 5 is a cross-sectional view similar to that of FIG. 4 but at a
lower level and showing the invention adapted for use with a solid
concrete wall .
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the drawings and particularly FIGS. 1-4, the door
frame assembly comprises a side frame section F and a header frame
H. The assembly further includes side support means 2 for mounting
on the hinge side of a door opening. The frame preferably also
includes side support means 4 (FIG. 3) for mounting on the strike
side of the door opening, although, as will be apparent, where a
free swinging door is to be used, side support means 4 may be
omitted.
In a dry wall construction, such as is shown in detail in FIG. 4,
support means 2 and 4 are secured to channel-shaped studs 6, 8
respectively. Studs 6 and 8 comprise webs 10 and 12 and wings 14,
16, 18 and 20 extending perpendicularly from the edges of the webs
10 and 12. Support means 2 and 4 are secured to the webs 10 and 12
as by screws 22. Studs 6 and 8 are disposed between the parallel
spaced-apart sections 24 and 24a of the wall adjacent the sides of
the door opening. Wings 14, 16, 18 and 20 are then secured to wall
sections 24 and 24a by screws 25 so that studs 6 and 8 become part
of the wall.
Superimposed over side support means 2 is a first side frame
section F, it being understood that a similar side frame section
(not shown) is superimposed over side support means 4 is the latter
is employed.
As shown, the support means 2 and 4 comprise elongated wooden
planks extending generally from the level of the header frame
section H along the entire length of the side frame section F.
However it will be readily appreciated that support means 2 and 4
could be formed of any strong rigid material, such as steel, and
that they could take other forms, such as small, appropriately
placed plates (see applicant's prior U.S. Pat. No. 3,676,966).
Preferably, side support means 2 and 4 are slightly wider than the
thickness of the wall and have inner surfaces 30 and 32 facing the
door opening, outer surfaces 34, 36 facing away from the door
opening and opposite side surfaces 38, 40 and 42, 44.
Side frame section F comprises first and second L-shaped side jamb
members 46 and 48. The term "L-shaped" as used herein, refers to a
configuration which, in cross section, generally includes two
angularly depending legs which may be perpendicular, slightly acute
or slightly obtuse. The first side jamb member 46 has a side jamb
leg 50 extending into the door opening along and in contact with
inner surface 30 of support means 2. First side jamb member 46
further has a side casing leg 52 extending away from the door
opening along one side of wall section 24a. Second side jamb member
48 also has a side jamb leg 54 extending into the door opening and
partially overlapping side jamb leg 50, leg 54 lying along inner
surface 30 but spaced from surface 30 by projections 58 integral
with side jamb leg 54 and extending toward surface 30. Projections
58 are of substantially the same thickness as side jamb leg 50.
Second side jamb member 48 also has a side casing leg 56, opposite
casing leg 52, and extending away from the door opening along the
surface of section 24.
A door-stop 60 is formed along the edge of side jamb leg 54 of
second side jamb member 48. Door-stop 60 has a channel 62 facing
the door and a second channel 66 facing the door opening. A
flexible insert or sealing member 64 is disposed in channel 62. A
bolt 68 in the bottom of channel 66 attaches the overlapped
portions of the side jamb legs 54 and 50 together by securing them
to support means 2. Several such bolts are preferably included
along the length of channel 66. Bolts 68 are hidden from view by a
flexible insert 70 which may be snapped into channel 66 and locked
into place by projections 71 which fit into grooves 73 in the sides
of channel 66. The location of door stop 60 at the edge of side
jamb leg 54 enhances the appearance of the frame by hiding the
interface between the two side jamb members 46 and 48. Thus,
although the side frame section is formed in two parts so as to be
adjustable to various wall thicknesses, it retains the unbroken
lines and pleasing appearance of a one-piece assembly.
Side jamb members 46 and 48 are laterally extensible, i.e.
relatively movable in a direction to vary the distance between side
casing legs 52 and 56, and thus accommodate walls of various
thicknesses. In a preferred form, the side support means 2 is
formed of two pieces which are scarfed as at 72 along their
lengths. Thus the support means 2 itself is laterally extensible to
vary the distance between side surfaces 38 and 48, and the side
jamb members 46 and 48 can move with the individual pieces of
support means 2 (see phantom lines in FIG. 5). Other variations are
possible. For example, the support means could be made in one
piece, with adjustments being made by moving the side jamb members
relative thereto; or if desired, the support means can be
extensible and the side jamb members also extensible relative to
the support means. In any event, suitable openings such as
horizontal slots or horizontally spaced holes must be provided in
side jamb legs 50 and 54 for screws 68.
To enable the weight of the door to be placed directly on the
support means, rather than the side jamb members, the side jamb leg
54 of second side jamb member 48 has a mortised hinge aperture 74
exposing a portion 76 of inner surface 30 of support means 2. Thus
one leaf of a hinge 78 is secured directly to support means 2 and
the other leaf attached to the door so that the weight of the door
is placed on support means 2 and ultimately borne by the wall. For
this reason the side jamb members can be made of lightweight
material such as aluminum or plastic.
Small flanges 80 on side casing legs 52 and 56 are directed
inwardly toward the surfaces of the wall and lie against outer
surface 34 of support means 2. The flanges 80 cooperate with
projection 59 on the rear surface of side jamb leg 54 and the rear
surface 50a of side jamb leg 50 to form support raceways 51 and 53,
respectively, for side support means 2. Side support means 2 is
chamfered on its inner surface 30 as shown to accommodate
projection 57. Support means 2 is preferably wider than the
thickness of the wall thus providing an important feature of the
present invention. It will be readily appreciated that in the case
of walls which are relatively thick, requiring relatively wide jamb
legs and when a lightweight material such as aluminum is employed
in the manufacture of the door frame, the jamb members 46 and 48
can pivot or flex around the generally vertical line determined by
screws 68. Accordingly, should either of the jamb members be struck
with a heavy object, as for example when furniture was being moved
through the door opening, the possibility exists that the jamb
member would be bent inwardly towards the door opening. However,
when support means 2 is made wide enough such that opposing sides
extend into the raceways 51 and 53, the jamb members 46 and 48 are
effectively "locked" into place and cannot be moved inwardly
towards the door opening, i.e. they cannot be made to pivot or flex
about the line defined by attachment screws 68. Thus, the door
frame, though being of two-piece construction, possesses the
strength and rigidity of a single piece, non-adjustable door frame.
It is not necessary that the flanges 80 extend the entire length of
side casing legs 52 and 56, i.e. it is not necessary to form
raceways 51 and 53 to effect the above locking of the jamb members.
For example, vertically spaced projections along side casing legs
52 and 56 and directed inwardly towards the opposing surfaces of
the wall would serve as well. Since the adjustable door frames
herein are most conveniently manufactured by extrusion, in the
preferred form, longitudinally extending flanges 80 are employed.
As a practical matter, it is only necessary that some means be
provided on casing legs 52 and 56 which will engage support means
2, substantially locking the jamb members 46 and 48 in position and
preventing pivoting or flexing of the jamb members about the line
determined by fastening screw 68. For example the opposing side
surfaces 38, 40 could be provided with longitudinally extending
grooves which could be engaged by flanges such as 80 or projections
extending inwardly towards the wall surfaces. Another advantage of
the scarfed support means thus resides in the assurance that the
support means can be adjusted to the proper width to utilize
support raceways 51 and 53. Other flanges 82 at the edges of side
casing legs 52 and 56 face inwardly toward the outer surfaces of
the wall section 24 and 24a but extend beyond flanges 80 to abut
the wall surfaces.
The second side frame section (not shown), for attachment to
support means 4, would be constructed in the same fashion as side
frame section 26 with the exclusion of hinge aperture 74. If a
strike plate is to be used, the second side frame section would
have an aperture in one of its side jamb legs to expose at least a
portion of support means 4, the latter having cutout portion 86 in
one of its sides adjacent plate 84 to accommodate a strike box
assembly (FIG. 3).
The header frame section H is substantially identical to side frame
section F but may be used with or without a header support means
such as 95 (FIG. 1). Header frame section H includes a first header
jamb member 88 having a header jamb leg 90 extending into the door
opening and a header casing leg 92 extending away from the door
opening on one side of the wall. A second header jamb member 94 has
a header jamb leg 96 extending into the door opening and partially
overlapping header jamb leg 90, and a header casing leg 98
extending away from the door opening on the other side of the wall
opposite header casing leg 92.
The header jamb members are relatively movable in a direction to
vary the distance between header casing legs 92 and 98. After
adjustment to the wall thickness, header jamb members 88 and 94 are
secured together by bolts which pass through their overlapped
portions and which may be hidden in a door-stop 100 similar to stop
60 and which is preferably at the edge of header jamb leg 96.
Flanges 80' and 82', similar to flanges 80 and 82, are formed on
header casing legs 92 and 98. Flanges 80' cooperate with projection
59' on header jamb leg 96 and the rear surface 90a of header jamb
leg 90 to form header support raceways 89 and 89a respectively. The
ends of header frame section H and the adjoining upper end of the
side frame section F have mating mitered edges 102, 104. If a
header support means such 95 is used, it may be joined to the side
support means such as by a dado joint, butt joint or the like. The
mitered ends 102, 104 of the side and header frame sections are
secured together by L-shaped clips 106 which are held in clip
raceways 103 and 105 formed on the side casing legs 56 and 52 of
the side frame section and clip raceways 107 and 109 in the header
frame section. The clip raceways 103 and 105 in the side frame
sections are on the side casing legs 56 and 52 behind the
projections 59 and 57 and the enlarged ends of flanges 80. The clip
raceways 107 and 109 in the header frame section are on the header
casing legs 92 and 98 behind the projections 57' and 59' and the
enlarged ends of flanges 80'.
FIG. 5 shows the invention as used with a solid wall such as
concrete or the like which does not include studs such as 6 but
which does have a plane edge surface 108 along the side of the door
opening. In this type of application the support means 2 is "shot"
directly to the surface 108 by nails 110 before the side jamb
members are superimposed over the support means.
* * * * *