U.S. patent number 3,841,042 [Application Number 05/340,908] was granted by the patent office on 1974-10-15 for panel locking devices.
This patent grant is currently assigned to Tiffany Industries, Inc.. Invention is credited to Burton L. Siegal.
United States Patent |
3,841,042 |
Siegal |
October 15, 1974 |
PANEL LOCKING DEVICES
Abstract
A modular panel assembly for setting up partitioning walls and
the like includes a column having a plurality of internal splines
that is arranged to be engaged by one or more channel members
having spaced series of external splines thereon arranged to be
received within the internal splines of the column. A portion of
the column is relieved to accommodate alignment of the external
splines on the channel with internal splines on the column
whereupon radial engagement followed by relatively short sliding
movement between the two provides for completely rigid engagement
between the channel member and the column, the engagement being
sufficient to completely resist bending forces between the channel
member and the column.
Inventors: |
Siegal; Burton L. (Skokie,
IL) |
Assignee: |
Tiffany Industries, Inc.
(Maryland Heights, MO)
|
Family
ID: |
23335428 |
Appl.
No.: |
05/340,908 |
Filed: |
March 13, 1973 |
Current U.S.
Class: |
52/239; 52/761;
D25/120; 52/282.3; 52/282.2 |
Current CPC
Class: |
A47G
5/00 (20130101); E04B 2/744 (20130101) |
Current International
Class: |
A47G
5/00 (20060101); E04B 2/74 (20060101); A47g
005/00 () |
Field of
Search: |
;52/241,239,238,282,738
;211/177 ;160/135,351 ;248/221,125,224 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Murtagh; John E.
Attorney, Agent or Firm: Hill, Gross, Simpson, Van Santen,
Steadman, Chiara & Simpson
Claims
I claim as my invention:
1. A modular panel assembly comprising a column having a plurality
of internal splines extending vertically along the periphery
thereof, a channel member having a pair of vertically spaced
external splines thereon located in proximity to the top and bottom
thereof and arranged to be received within said internal splines to
accommodate sliding movement but prohibit disengagement between
said column and said channel member, said column having a relieved
portion therein in close proximity to the bottom thereof wherein
one of said external splines may be radially received for
accommodating engagement between said external and internal splines
upon relative vertical movement therebetween, and abutment means on
said column limiting the extent of sliding movement between said
column and said channel member.
2. The panel assembly of claim 1 in which said internal splines in
cross-section include surfaces which are convergingly inclined from
the periphery of said column and terminate in substantially
trapezoidal rib portions which are at least as wide as the distance
between said surfaces measured at said periphery.
3. The panel assembly of claim 2 in which said external splines
consist of two splines which are inwardly inclined to engage two
circumferentially spaced internal splines separated by an
intervening internal spline.
4. The panel assembly of claim 2 in which said relieved portion
includes a continuation of said convergingly inclined surfaces but
is devoid of said trapezoidal rib portions.
5. The panel assembly of claim 1 in which said pair of vertically
spaced splines consists of single splines, and said channel member
has leg portions arranged to abut said column on opposite sides of
said single spline.
6. The panel assembly of claim 1 in which said abutment means
consists of a disc rigidly secured to the base of said column.
Description
BACKGROUND OF THE INVENTION
1. Field Of The Invention
This invention is in the field of rapidly engagable and
disengagable modular panel assemblies used, for example, in
partitioning off office space and includes a central column member
having a plurality of internal splines arranged about the periphery
thereof, the splines being engagable with external splines provided
on a plurality of partitioning members to which are secured channel
members having external splines arranged to be received in the
internal splines of the column periphery.
2. Description Of The Prior Art
Some modular panel systems have been proposed in the prior art
which provide inter-panel engagement by means of a piano hinge-type
structure but such structures have been found to be insufficiently
stable against relative movement between the panels to be
satisfactory.
Still other modular type systems have been proposed which require
elaborate and expensive columnar sections which are frequently
difficult to engage and disengage. For any of these reasons, such
modular panel systems have not received any significant acceptance
in the art.
SUMMARY OF THE INVENTION
The present invention provides an improved modular panel system
which completely eliminates the hinge effect and provides for rapid
engagement and disengagement of the panels with a centrally
disposed column. The engagement is made by means of internal and
external splines in a channel member affixed to the panel and the
column itself. Engagement between the column and the channel member
is facilitated by providing a relieved area in the column where the
splines are cut back so that the splined area of the channel member
can be engaged with the relieved area and then the two can be
locked against movememt by radially engaging the two and then
sliding the channel member a short distance relative to the column,
causing inter-engagement between the external and internal splines.
The geometry of the splined areas is such as to enable a plurality
of panels to be locked to a single column, even at various angular
relationships.
The modular panel assembly of the present invention also includes a
hollow bottom structure which is releasably secured to the panel
and which carries electrical outlets and the like. Space is also
provided to serve as a conduit for telephone lines, intercom lines,
and the like.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, features and advantages of the invention will be
readily apparent from the following description of certain
preferred embodiments thereof, taken in conjunction with the
accompanying drawings, although variations and modifications may be
effected without departing from the spirit and scope of the novel
concepts of the disclosure, and in which:
FIG. 1 is a fragmentary view in perspective of a partitioning
system employing the improved modular panel assemblies of the
present invention;
FIG. 2 is a view in elevation of a column to which one of the panel
structures has already been secured, and another is in the process
of being secured thereto;
FIG. 3 is a cross-sectional view taken substantially along the line
III--III of FIG. 2;
FIG. 4 is a plan view of the bottom closure for one of the
panels;
FIG. 5 is a fragmentary cross-sectional view of the bottom
structure of one of the panels, showing the manner in which the
bottom closure is releasably secured to the panel;
FIG. 6 is a cross-sectional view of a modified form of the present
invention;
FIG. 7 is a cross-sectional view of a still further modified form
of the invention; and
FIG. 8 is a bottom plan view of a plurality of inter-engaged panels
showing the electrical wiring extending therebetween.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In FIG. 1 reference numerals 10 and 11 indicate generally column
structures of the type which are suitable for use with the present
invention. A panel assembly 12 is shown engaged with the column 10,
and a pair of panels 13 and 14 are shown engaged with the column 10
at right angles to the panel 12. The opposite end of the panel 14
is engaged with the column 11 and another panel 15 is likewise
engaged with the column 11. It should be understood, of course,
that the columns 10 and 11 can be of any desired height and the
various panels can be of different widths depending upon the type
of partitioning to be effected. Each of the panels has a removable
bottom closure 12a, 13a, 14a and 15a, respectively, in which are
located one or more electrical outlets 16. A more detailed
description of the bottom closures will be found in a succeeding
portion of the specification.
Referring specifically now to FIGS. 2 and 3, it will be noted that
the column 10 has a splined portion 17 extending over a major
portion of its length and a relieved area 18 extends for a few
inches or so above a splined bottom portion 19. A disc 20 is
rigidly secured to the bottom of the splined portion 19. A foot 21
is threadedly engaged within the disc 20 to permit vertical
adjustment of the height of the column 10 with respect to the
floor.
The panels, such as panels 13 and 14, can be composed of any
suitable building material such, as in the illustrated instance, of
a honeycomb reinforced laminated panel including outer plies 13b
and 13c with a honeycomb type reinforcement 13d therebetween. It
should be evident, of course, that other types of building
materials can be used such as plywood or various types of
wallboard. Secured to the outer marginal edge of each panel 13 is a
channel member 22 having a configuration best illustrated in FIG. 3
of the drawings. The channel member 22 includes a flat web portion
23 which is secured to the panel 13 by means of screws 24 or the
like. Marginal flange portions 25 and 26 are arranged to be tightly
received against the marginal ends of the plies 13b and 13c. A
medial transverse web portion 27 connects the web portion 23 with
an outer web portion 28, thereby providing a pair of grooves 29 and
30 which can be used to position shelf brackets vertically along
the extent of the panel. A specially designed shelf bracket for use
in this type of groove arrangement is the subject of a separate
patent application.
Similarly, the panel 14 is provided with a channel member 31 having
a flat central web portion 32 secured to the panel 14 by means of
screws 33 or the like. Marginal flange portions 34 and 35 are
seated securely against the marginal edges of the plies 14b and
14c. A medial transverse web portion 36 connects the flat web
portion 32 to an outer web portion 37 upon which a pair of external
splines 38 and 39 are located. The external splines 38 and 39 are
arranged to be received within internal splines 40 provided about
the periphery of the column 10. As best seen in FIG. 3, the
external splines 38 and 39 are angularly inclined so as to extend
substantially along a radius of the column 10.
The splines 38 and 39 have trapezoidal engaging portions 41 and 42,
respectively, which are proportioned to be received within the
internal splines 40 in sliding relationship after initial radial
engagement with the truncated splines in the relieved area 18. The
splines 40 are shaped complementarily to the trapezoidal portions
41 and 42 to acommodate such sliding movement. The splines 40 are
provided by shaping the periphery of the column 10 with
convergingly inclined surfaces 43 and 44 which terminate in
substantially trapezoidal rib portions 45, the width of the
trapezoidal portions 45 being at least as great as the spacing
between adjacent inclined surfaces 43 and 44 which define the
internal splines.
As also illustrated in FIG. 3, in the relieved area 18, the
trapezoidal portions 45 are cut away, leaving only the convergingly
inclined surfaces 43 and 44 in that area.
Returning to FIG. 2, it will be seen that the lower splines 38 and
39 extend along the channel member for a distance just slightly
less than the extent of the relieved area 18 so that the
trapezoidal portions 41 and 42 are readily received in the relieved
area. A second set of external splines 46 and 47 are positioned
along the channel member by a distance at least as great as the
vertical extent of the splined portion 17. Consequently, when the
splines 38 and 39 are positioned within the relieved area 18, the
external splines 46 and 47 will be positioned just above the top of
the column 10. Then, moving the panel 14 downwardly with respect to
the column 10 causes engagement of the splines 38 and 39 with the
internal splines 40 of the column 10 behind the trapezoidal ribs
45. Sliding movement of the panel with respect to the column 10 is
continued until the panel strikes an abutment means consisting of
the disc 20 whereupon the panel is securely locked to the column
10. In a particular embodiment illustrated in FIG. 3, the splines
38 and 39 are engaged with the internal splines 40 leaving an
intermediate internal spline vacant. This positioning of the
splined engagement further reduces any hinging effect so that
torsional forces are adequately resisted.
A plastic tap 48 can be inserted into the end of the column 10 for
decorative purposes.
Alternative configurations for the column and channel member
structure are shown in FIGS. 6 and 7. In FIG. 6 there is
illustrated a channel member 49 having a flat web portion 50 which
is arranged to be received against the end of the panel by means of
a barbed end portion 51. A medial web portion 52 connects the web
portion 50 to an outer web portion 53 which has a trapezoidally
formed single spline 54 thereon. A pair of spaced feet 55 and 56
are positioned to engage spaced trapezoidal ribs 45 on the column
10. A provision of the legs 55 and 56 in combination with the
external spline 54 serves to prevent hinging movement of the column
10 relative to the channel 49.
In the embodiment illustrated in FIG. 7, there is provided an
arcuately faced flange member 57 on which there is formed an
arcuate spline 58. The column in this embodiment of the invention
includes a central cylindrical portion 59 from which arcuate ribs
60 extend by means of radially extending ribs 61. The spline 58 is
proportioned to be received in the spaces between the arcuate ribs
60 in sliding engagement between the outer periphery of the central
cylindrical section 59 and the inner periphery of the arcuate ribs
60 as shown in FIG. 7.
The panel assemblies of the present invention also provide
convenient means for incorporating electrical outlets and wiring
conduits into the partitioning system. As illustrated best in FIGS.
4 and 5, a base plate 63 having polygonal marginal end portions 64
and 65 and secured to one of the panels is received in slidable
relationship within ways 66 and 67 formed in a hollow base portion
68.
As illustrated in FIG. 4, the hollow base portion 68 terminates in
a pair of opposed leg portions 69 and 70 which are fastened to one
of the channel members 22 on the panel sections. Inwardly of the
legs 69 and 70 is a cover plate 71 in which the electrical wiring
is included. Extending outwardly from this enclosure is a three
pronged male electrical plug 72 which permits interconnection
between adjacent panels. A pair of electrical outlets 73 and 74 are
shown extending into the partitioned areas. The cover plate 71 is
spaced from the base plate 63 by a space 75 which forms a
convenient conduit for enclosing telephone wiring, intercom wiring
and the like so that they are not exposed to the exterior of the
panel.
One suitable means for interconnecting the various panels
electrically is shown in FIG. 8. As indicated in that Figure, the
central column 10 is surrounded by four panel assemblies 75, 76, 77
and 78 at right angles to each other, although other angular
configurations can obviously be employed. The male electrical plug
of the panel 76 is connected by means of an extension cord 79 to
one of the outlets 80, while an outlet 81 in the same panel is
connected by means of extension cord 82 to the male outlet in the
panel 78. The panel 75 is connected directly to the panel 77 by
means of an extension cord 83 so that all four panels are fed from
a single source of electrical power.
The panel assemblies of the present invention are easy to assemble
and disassemble as it is merely necessary to raise the panel by the
height of the lower spline section 19 as illustrated in FIG. 2,
which usually is only a matter of a few inches or so. Then, when
the external splines of the channel members are engaged with the
internal splines of the column, a secure, torsion resistant
engagement is achieved.
It should also be noted that the geometry of the column and the
panel members is such as to facilitate production from extruded
aluminum tubing and the like, so that the panel assemblies can be
built at a reasonable cost.
It should be evident that various modifications can be made to the
described embodiments without departing from the scope of the
present invention.
* * * * *