U.S. patent number 3,854,268 [Application Number 05/314,711] was granted by the patent office on 1974-12-17 for corner bracket for furniture case.
Invention is credited to Kenneth H. Gutner.
United States Patent |
3,854,268 |
Gutner |
December 17, 1974 |
CORNER BRACKET FOR FURNITURE CASE
Abstract
A corner bracket for a furniture case consisting of a unitary,
substantially rigid member having a flat intermediate portion and
upstanding integral end portions so related as to act as a diagonal
brace between a horizontal parting rail and a vertical frame
member.
Inventors: |
Gutner; Kenneth H. (Highland
Park, IL) |
Family
ID: |
23221115 |
Appl.
No.: |
05/314,711 |
Filed: |
December 13, 1972 |
Current U.S.
Class: |
403/403; 52/657;
248/220.1; 52/697; 403/231 |
Current CPC
Class: |
F16B
12/50 (20130101); Y10T 403/73 (20150115); Y10T
403/4602 (20150115) |
Current International
Class: |
F16B
12/50 (20060101); F16B 12/00 (20060101); A47b
096/06 () |
Field of
Search: |
;312/283 ;248/222,300
;52/285,657,751,753R,753C,753D,753Y,753L,758H ;217/69,70 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Sutherland; Henry C.
Attorney, Agent or Firm: Dawson, Tilton, Fallon &
Lungmus
Claims
I claim:
1. A corner bracket for a furniture case comprising a unitary
substantially rigid member having a substantially flat intermediate
portion and upstanding integral end portions disposed generally
orthogonally relative to the intermediate portion, the end portions
being orthogonally related to each other and so disposed as to bear
against a horizontal parting rail and a vertical frame member,
respectively, a plurality of gussets interconnecting said
intermediate portion with said end portions, said intermediate
portion being equipped with reenforcing rib means, said rib means
including a first rib extending generally longitudinally of the
member and terminating within the end portions, said rib means also
including transverse ribbing to strengthen said member in a plane
normal to the plane strengthened by the longitudinal rib, said end
portions being equipped with a plurality of screw receiving
openings, each opening on the side of the end portion adapted to
confront said parting rail and said frame member being equipped
with an outstanding annular flange for biting engagement with said
parting rail or frame member as the case may be, said end portions
also being equipped with projections on the same surface as is
equipped with said annular flanges, said annular flanges projecting
outwardly from said surfaces slightly greater than said
projections.
Description
BACKGROUND AND SUMMARY OF INVENTION
In the past, corner braces for the interior parts of furniture have
consisted of triangular blocks. Normally, these were made up of a
chip core of reprocessed wood plus veneer facings on the sides. The
real recommendation of the prior art brackets was their low cost,
being essentially a salvage item. The low cost compensated for the
lack of precision, strength, etc. Increasingly, of late, factories
are eliminating the use of veneer facings, so there is not
available the material necessary to provide these side facings.
Attempts to use the chip core alone has resulted in splintering,
loss of support and the like. This has become particularly critical
when taller and taller furniture pieces are being made.
According to the invention, a sturdy, precise corner bracket is
provided through the use of a unitary strap of metal with the end
portions folded into upstanding flanges at 45.degree. and with
suitable bracing ribs installed in the strap. Through the use of
the novel corner brace of the invention, the advantages of
relatively low cost of the prior art brackets is achieved, yet with
increased or additional advantages insofar as performance is
concerned.
DETAILED DESCRIPTION OF THE INVENTION
The invention is described in conjunction with an illustrative
embodiment in the accompanying drawing in which:
FIG. 1 is a fragmentary perspective view of a furniture piece (here
a dresser) showing the inventive corner brackets installed and
depicted in phantom line;
FIG. 2 is a fragmentary sectional view taken along the line 2--2 of
FIG. 1;
FIG. 3 is a fragmentary sectional view taken along the line 3--3 of
FIG. 2;
FIG. 4 is a perspective view of the corner bracket employed in
connection with the showings in FIG. 1-3;
FIG. 5 is a fragmentary sectional view taken along the line 5--5 of
FIG. 4; and;
FIG. 6 is a perspective view of a modified form of the
invention;
FIG. 7 is a fragmentary sectional view taken along the line 7--7 of
FIG. 4.
In the illustration given and with reference first to FIG. 1, the
numeral 10 designates generally a furniture piece here illustrated
as a dresser. As such, the dresser includes a frame 11, a top 12,
and drawers 13 and 14.
The frame 11 is defined in part by means of vertical frame members
as at 15 (see the extreme right hand portion of FIG 1).
Additionally, the frame 11 includes parting rails as at 16, which
are essentially horizontal members interconnecting the frame. The
inventive bracket, generally designated 17, interconnects in a
bracing fashion the vertical frame member 15 and the horizontal
parting rail 16. As indicated in FIGS. 1-3, a plurality of the
corner brackets are advantageously employed.
The corner bracket 17 is seen in enlarged perspective view in FIG.
4, and is seen to consist essentially of a unitary, substantially
rigid, member -- such as a metal strap such as would be constructed
of between 14 to 20 gauge steel.
The strap constituting the corner bracket 17 is seen to have been
formed in three discrete portions. The flat intermediate portion 18
has, at each end thereof, end portions 19 and 20, each of which is
orthogonally related to the intermediate portion 18. These in
essence are formed by folding the end portions of the strap at
right angles to the intermediate portion, but along lines that are
45.degree. relative to the length of the intermediate portion 18.
Thus, the end portions 19 and 20 are in themselves orthogonally
related.
The strap or blank from which the corner bracket is formed is
equipped with ribbing generally designated 21 which is found
primarily in the intermediate portion. More particularly, a first
rib 22 is provided which extends longitudinally of the bracket 17
and, while primarily located within the intermediate portion 18,
has end portions as at 23 and 24 which terminate within the end
portions 19 and 20, respectively.
As can be seen clearly in FIG. 4, the ribbing 21 also includes
transverse ribbing as at 25 and 26 which serves to strengthen the
bracket in a plane normal to the plane strengthened by the
longitudinal rib 22. It will be seen that the transverse ribbing 25
and 26 includes two ribs which are angularly related to each
other.
In the illustration given in FIG. 4, the bracket 17 has its end
portions 19 and 20 equipped with a plurality of screw receiving
openings as at 27 (see the upper left hand portion of FIG. 4). Each
of the end portions 19 and 20 in the face thereof confronting the
frame member or parting rail, as the case may be, is equipped with
an outstanding annular flange as at 28 (see FIG. 7) which serves to
enter into biting engagement with the surface to which the bracket
17 is secured.
Additionally, each of the end portions 19 and 20 is equipped with
projections as at 29 (see FIG. 5) on the above-mentioned
confronting surfaces -- those faces of the end portions which abut
and are in contact with the frame members. The projections 29 are
advantageously achieved by "dimpling" the end portions 19 and 20 --
this resulting in the circular depressions as at 29' seen in the
upper left hand portion of FIG. 4. It has been found advantageous
to utilize the projections 29 but to restrict their outward
extension to slightly less than the outward extension of the
annular flange 28 -- the difference in projection being exaggerated
somewhat in the showing in FIG. 5.
Still further, advantageous stabilization and reenforcement is
achieved through the use of gussets as at 30 in the upper portion
of FIG. 4. Each gusset extends between the intermediate portion 18
and the associated end portion 19 or 20 as the case may be, with
the gussets being provided as integral portions of the brackets 17
(see FIG. 5, for example).
A modified form of the invention is seen in FIG. 6 wherein the
bracket is designated generally by the numeral 117. The various
parts hereinbefore described are present, with the principal
difference being in the openings in the end portions 119 and 120
for the purpose of securing the bracket to the orthogonally related
frame member. In the illustration given in FIG. 6, a pair of slots
131 and 132 are provided for the receipt of a staple 133 (see the
lower right hand portion of FIG. 6). A plurality of sets of
staple-receiving openings are provided in each end portion of the
structure illustrated in FIG. 6. Also, the number of projections
could be reduced as evidenced by the lesser number of dimples 129'
provided in the structure seen in FIG. 6. However, a slightly
different arrangement of the dimples 129' would permit the use of a
larger number without departing from the spirit and scope of the
invention.
* * * * *