U.S. patent number 3,730,467 [Application Number 05/198,635] was granted by the patent office on 1973-05-01 for means for removable attachment of a load supporting assembly to a surface.
Invention is credited to Leslie G. Dutchburn.
United States Patent |
3,730,467 |
Dutchburn |
May 1, 1973 |
MEANS FOR REMOVABLE ATTACHMENT OF A LOAD SUPPORTING ASSEMBLY TO A
SURFACE
Abstract
The horizontal position of a load supporting assembly such as a
grill or a firebox may be selectively adjusted by means of a pair
of brackets provided with a number of elongated notches spaced
along their lengths. Each bracket is also provided with an
indentation between each adjacent pair of notches. The load
supporting assembly has a pair of spaced apart transverse bars
extending along one side thereof and the indentation and a part of
the notch are shaped to conform to the outside walls of the bars.
The brackets are spaced apart on a surface such as an inner wall of
a fireplace and the load supporting assembly is connected thereto
by moving one bar into notches at the same elevation of the
brackets. The assembly is allowed to rotate under its own weight
about the bar so that the other bar moves into contact with the
indentations immediately beneath the notches.
Inventors: |
Dutchburn; Leslie G. (Toronto,
Ontario, CA) |
Family
ID: |
22734178 |
Appl.
No.: |
05/198,635 |
Filed: |
November 15, 1971 |
Current U.S.
Class: |
248/243;
248/225.11 |
Current CPC
Class: |
A47J
37/06 (20130101); A47B 57/08 (20130101) |
Current International
Class: |
A47B
57/08 (20060101); A47B 57/00 (20060101); A47J
37/06 (20060101); F16m 013/00 () |
Field of
Search: |
;248/68R,73,201,223,224,225,242,243,246 ;108/152 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
740,311 |
|
Nov 1955 |
|
GB |
|
361,068 |
|
Nov 1931 |
|
GB |
|
Primary Examiner: Schultz; William H.
Claims
What I claim as new and desire to protect by Letters Patent of the
United States is:
1. In combination, a pair of brackets spaced apart from one another
and adapted to be positioned vertically upon a planar surface, each
said bracket having an elongated web and a flange extending
outwardly from said web and terminating at an elongated free edge,
said flange having a plurality of notches disposed along the length
thereof, each said notch extending from said free edge to said web
and being defined in part by a pair of spaced apart edges, the
lowermost of which, when said bracket is positioned on the planar
surface, extending downwardly from said free edge toward said web
and terminating at a bottom edge which extends to said web, said
flange further having a plurality of spaced apart indentations,
each of which being spaced apart and between an adjacent pair of
said notches and extending from said free edge toward said web; and
a load-supporting assembly having a pair of spaced apart transverse
members extending along one edge thereof, one said member
terminating at each end in a first limb portion which extends from
said one member to a second limb portion, said second portion
extending generally normally from said first limb portion to said
other member, said assembly adapted to be removably connected to
said brackets such that said one transverse member is seated in the
bottom edge of any one said notch in each said bracket and said
other transverse member is seated in the indentation immediately
beneath said one notch in each said bracket, and said first limb
portions contact along their lengths said web, said indentation
extending no farther into said flange than to accommodate a portion
only of the cross section of said second member seated therein,
said bottom edge and said indentation conforming in shape to those
parts of said transverse members seated thereon.
2. The combination as claimed in claim 1 wherein each said bracket
is provided with a second flange spaced apart from said flange
provided with notches and indentations, said second flange being
inclined at an angle of about 45.degree. relative to said web, said
transverse members being accommodated between said second flanges
when said assembly is connected to said brackets.
3. The combination as claimed in claim 1 wherein each said bracket
is fixed at a point in proximity to one end thereof to said surface
and in proximity to the other end of each said bracket an aperture
is formed in which is rotatably accommodated a bolt whereby the
distance between said other end and said planar surface may be
varied.
4. In combination, a pair of brackets spaced apart from one another
and adapted to be positioned vertically upon a planar surface, each
said bracket having an elongated web and a flange extending
outwardly from said web and terminating at an elongated free edge,
said flange having a plurality of notches disposed along the length
thereof, each said notch being defined in part by a pair of spaced
apart edges, the lowermost of which, when said bracket is
positioned on the planar surface, extending downwardly from said
free edge toward said web and terminating at a bottom edge, said
flange further having a plurality of spaced apart indentations,
each of which being spaced apart and between an adjacent pair of
said notches; and a load-supporting assembly having a pair of
spaced apart transverse members extending along one edge thereof,
said assembly adapted to be removably connected to said brackets
such that one said transverse member is seated in the bottom edge
of any one said notch in each said bracket and the other said
transverse member is seated in the indentation immediately beneath
said one notch in each said bracket said bottom edge and said
indentation conforming in shape to those parts of said transverse
members seated thereon; each said bracket further being provided
with a second flange spaced apart from said flange provided with
notches and indentations, said second flange being inclined at an
angle of about 45.degree. relative to said web, said transverse
members being accommodated between said second flanges when said
assembly is connected to said brackets.
Description
This invention relates to supporting frames and is particularly
directed to attachment means permitting selective horizontal
positioning of a load-supporting assembly to a fixed surface.
Attachment means such as studs are commonly provided in the inner
side walls of a fireplace to support a grill. Many such studs are
normally provided to permit selective horizontal positioning of a
grill. Four studs at least are required to properly support the
grill in a horizontal position, two at each inner side wall of the
fireplace.
Such studs are undesirable for a number of reasons. They are
subject to breakage and give to a fireplace a cluttered
unattractive appearance. Furthermore, the grill readily separates
from the studs when struck from below. Thus, the grill must be
handled carefully to prevent food on the grill from falling into
the fire.
As an alternative to studs, pairs of runners are frequently
fastened to the inner side walls of a fireplace. Charred material
however, frequently becomes bonded to the runners and a grill
cannot rest firmly on such runners, but will rock in use. Also, if
studs or runners are employed, the fireplace must have side walls
to which studs or runner may be affixed.
It is an object of the present invention to provide means whereby a
load-supporting assembly may be connected at a plurality of
selective horizontal positions to a surface of a fireplace or other
surface, which means is sturdy of construction, unobtrusive and
holds the assembly firmly to the surface even when struck from
below.
Another object is to provide means, the usefulness of which is not
greatly impaired by material charred to its surfaces.
It is another and more specific object to provide attachment means
suitable for use in a fireplace having either irregularly shaped
side walls or no side walls at all.
These objects may be accomplished by the combination of a pair of
brackets spaced apart from one another and adapted to be positioned
vertically upon a planar surface, each said bracket having an
elongated web and a flange extending outwardly from said web and
terminating at an elongated free edge, said flange having a
plurality of notches disposed along the length thereof, each said
notch being defined in part by a pair of spaced apart edges, the
lower-most of which, when said bracket is positioned on the planar
surface, extending downwardly from said free edge toward said web
and terminating at a bottom edge, said flange further having a
plurality of spaced apart indentations, each of which being spaced
apart and between an adjacent pair of said notches; and a
load-supporting assembly having a pair of spaced apart transverse
members extending along one edge thereof, said assembly adapted to
be removably connected to said brackets such that one said
transverse member is seated in the bottom edge of any one said
notch in each said bracket and the other said transverse member is
seated in the indentation immediately beneath said one notch in
each said bracket said bottom edge and said indentation conforming
in shape to those parts of said transverse members seated
thereon.
A fuller understanding of the invention may be had by referring to
the following description of a preferred embodiment of the present
invention, taken in conjunction with the accompanying drawing in
which:
FIG. 1 is a perspective view of the brackets and load-supporting
assembly of the invention;
FIG. 2 is a fragmentary perspective view of a portion of the parts
illustrated in FIG. 1; and
FIG. 3 is a partly cut away side view of the parts illustrated in
FIG. 2.
Like reference characters refer to like parts throughout the
description of the drawing.
With reference first to FIG. 1, the invention is shown incorporated
in a load-supporting assembly or grill 10 and brackets 12a and 12b.
Grill 10 includes a front transverse bar 14 and parallel side bars
16a and 16b. A plurality of spaced apart rods 18 are supported by
side bars 16a and 16b and are arranged parallel to one another and
to front bar 14.
Side bars 16 each extend rearwardly and connect with a rear
transverse bar 20 which extends parallel to front bar 14 and
inter-connects the two side bars 16a and 16b. Side bars 16a and 16b
each terminates at the rear in an upwardly extending limb 22a and
22b respectively, and the upper end of the limb is integral with a
transverse member 24 which extends between and inter-connects limbs
22a and 22b.
As shown, brackets 12a and 12b are arranged parallel to one another
and are connected to the rear planar surface 26 of a fireplace.
Preferably, the upper ends of brackets 12 are inter-connected by an
elongated member 28 bolted at several locations along its length to
surface 26. A bolt 29 is threadably received in an aperture formed
in the lower end of each bracket 12 and contacts surface 26 so that
the brackets may be positioned vertically whatever the slope of
surface 26 may be.
With reference to FIG. 2, each bracket 12 is made up of an outer
and inner flange 30 and 32 and a web 34 extending between the two
flanges. Outer flange 30 is inclined at an angle of approximately
45.degree. to the plane of web 34 and serves, in the manner
described below, as a guide when load-supporting assembly 10 is
connected to the brackets.
A number of notches indicated generally 36, is formed along the
length of inner flange 32 of each bracket. Each notch is defined in
part by a pair of spaced apart upper and lower edges 38 and 40
which extend inwardly toward web 34 and in a generally downward
direction when bracket 12 is connected to the fireplace as shown.
Upper edge 38 terminates at web 34 while lower edge 40 terminates
at a rounded bottom edge 42.
A plurality of indentations 44 are cut along the length of inner
flange 32. Each indentation 44 is spaced apart and between an
adjacent pair of notches 36. In contrast to the notches, the
indentation extend into flange 32 only a small distance and are
completely defined by a curved surface.
The distance between bottom edge 42 of notch 36 and indentation 44,
measured along the surface of flange 32, is the same as the
distance between parallel transverse bars 20 and 24, measured on a
line normal to both bars. Thus when assembly 10 is connected to
bracket 12 as illustrated in FIG. 2, transverse bar 24 contacts
bottom edge 42 and bar 20 contacts the edge defining indentation
44. Both bottom edge 42 and the defining edge of indentation 44 are
shaped to conform to the shape of the portion of bars 20 and 24 in
contact therewith, thus when the assembly is connected as shown,
bars 20 and 24 are firmly seated in the respective notches and
indentations and the assembly is immovable with respect to the
bracket.
With reference to FIG. 3, which shows a side view of bracket 12b
with flange 30 removed and a portion of assembly 10, assembly 10 is
connected to bracket 12 by tilting front bar 14 upwardly with
respect to rear bar 20 and feeding bar 24 downwardly and inwardly
along the space between edges 38 and 40. When bar 24 reaches the
end of notch 36, it will move downwardly and into contact with
bottom edge 42. When the front bar 14 is permitted to move
downwardly under its own weight, rear bar 20 will move into contact
with the defining edge of indentation 44 and the assembly will be
maintained firmly in contact with bracket 12.
The design of the brackets and assembly is such as to substantially
eliminate the possibility of accidental separation of the assembly
from the bracket. The upper portion of the defining edge of
indentation 44 resists upward movement by a vertically upward force
applied to the assembly. The front edge of edge 42 which contacts
bar 24 prevents movement by a horizontally outward force applied to
the assembly. The assembly can only be separated from the bracket
by first rotating the assembly upwardly about bar 24, secondly,
lifting the assembly so that bar 24 clears the front edges 42 of
the bracket and finally moving the assembly forward to withdraw bar
42 from notches 36.
Outer flange 30 of each bracket 12 serves as a guide to facilitate
attachment of assembly 10 to the brackets since the flanges prevent
bar 24 from being moved into bottom edges 42 of both brackets 12
unless the assembly is correctly centered with respect to brackets
12a and 12b.
It will be understood, of course, that modifications can be made in
the preferred embodiment of the invention illustrated and described
herein without departing from the scope and purview of the
invention as defined in the appended claims.
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