U.S. patent number 3,732,659 [Application Number 05/137,886] was granted by the patent office on 1973-05-15 for adjustable locking assembly.
This patent grant is currently assigned to Aluminum Company of America. Invention is credited to Robert L. LaBarge.
United States Patent |
3,732,659 |
LaBarge |
May 15, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
ADJUSTABLE LOCKING ASSEMBLY
Abstract
An adjustable locking assembly having a female member provided
with a base portion and a pair of spaced forwardly directed
sidewalls, all cooperating to define a forwardly open channel. A
male element, having a body portion and a locking portion,
extending into the forwardly open channel. One of the elements
having angularly transversely oriented resiliently deflectable fins
and the other having a plurality of transverse ribs defining a
plurality of notches. At least one resiliently deflectable fin
element having a free end engaged within a notch to establish
locking assembly wherein separation of the male and female elements
is resisted by resilient fin and notch engagement.
Inventors: |
LaBarge; Robert L. (Allegheny,
PA) |
Assignee: |
Aluminum Company of America
(Pittsburgh, PA)
|
Family
ID: |
22479489 |
Appl.
No.: |
05/137,886 |
Filed: |
April 27, 1971 |
Related U.S. Patent Documents
|
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
|
128920 |
Mar 29, 1971 |
|
|
|
|
Current U.S.
Class: |
52/461;
52/718.04; 52/204.597; 52/464; 55/508; 55/DIG.31 |
Current CPC
Class: |
E04B
1/6803 (20130101); E06B 3/305 (20130101); Y10S
55/31 (20130101) |
Current International
Class: |
E04B
1/68 (20060101); E06B 3/30 (20060101); E04b
001/66 () |
Field of
Search: |
;52/396-400,403,498,502,461,464,468,469,584,585,522,538,717,718
;24/21C ;85/DIG.2 ;287/189.36D |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
202,340 |
|
Jul 1956 |
|
AU |
|
835,012 |
|
Feb 1970 |
|
CA |
|
748,436 |
|
May 1956 |
|
GB |
|
799,146 |
|
Aug 1958 |
|
GB |
|
Primary Examiner: Perham; Alfred C.
Parent Case Text
This application is a continuation-in-part of U. S. Ser. No.
128,920, filed Mar. 29, 1971, entitled Panel Construction and now
abandoned.
Claims
I claim:
1. A wall construction, comprising
a pair of panels having a pair of adjacent marginal edges disposed
in aligned spaced relationship with respect to each other,
a splice joint assembly having a splice element and a spline
element each extending into said space between said adjacent
marginal edges from opposite ends thereof,
said splice element having a base portion and a pair of sidewalls
extending forwardly from said base portion and cooperating with
said base portion to define a forwardly open channel,
at least one of said splice element sidewalls each having a
plurality of transversely inwardly projecting ribs which divide
said sidewall into a plurality of notches,
said spline element having a locking portion, a transversely
enlarged forwardly disposed head portion and a connecting body
portion,
said spline element locking portion having at least two
transversely angularly forwardly directed resiliently deflectable
fins protruding in cantilevered fashion therefrom,
the spacing between said transversely inwardly projecting ribs and
the spacing between said transversely angularly forwardly directed
resiliently deflectable fins each being established by the Vernier
principle,
at least one said resilient fin having a free end resiliently
deflected and engaged within a notch of said splice element,
and
said head portion in contact with a forwardly facing surface of
said panels.
2. The wall construction of claim 1, including
both said sidewalls having said inwardly projecting ribs,
at least two said resilient fins projecting from each side of
locking portion,
said splice element being substantially rigid,
said splice element sidewalls are substantially parallel and are of
substantially uniform thickness except at locations of said
ribs,
each said notch defining rib of said splice element having a
rearward surface which is disposed generally perpendicular to said
generally parallel sidewalls and a forward surface which extends
from the innermost portion of said rearward surface transversely
angularly forwardly,
each said notch defining rib is spaced longitudinally within said
splice element with respect to adjacent ribs,
said spline element body portion being of substantially uniform
thickness,
the portion of said spline element locking portion from which said
resiliently deformable fins protrude being formed as a web-like
extension of said body portion, sand the smaller of the two angles
between said fins and said web-like portion from which they project
being about 35.degree. to 60.degree..
3. The wall construction of claim 2, including
said splice element base being generally v-shaped,
the minimum transverse distance between said generally parallel
sidewalls of said splice element taken from the transverse
innermost portions the two lines of ribs is less than the
uncompressed maximum width of said locking portion of said spline
element,
said splice element is an aluminum extrusion, and
said spline element is composed of a resiliently deformable plastic
material.
4. The wall construction of claim 2, including
said splice joint assembly is longitudinally substantially
coextensive with said adjacent marginal panel edges,
a rearwardly open generally channel shaped panel joining element
integrally formed with said splice element and having its base
disposed closely adjacent the base of said splice element, and
a pair of panel edges secured within said rearwardly open panel
joining element.
5. The wall construction of claim 4, including
each said panel consisting of a rearward panel section having a
rearwardly facing metal skin and an insulating material panel
section and a forwardly disposed panel section in face to face
adjacency with respect to said insulating material,
the spacing between transversely inwardly directed ribs of said
sidewalls and between said resilient fin elements of said locking
portion is determined by the relationship
NS.sub.1 = (N + 1) S.sub.2 where
N = the number of fins or ribs provided on the spline or splice
element which has the lesser number of fins or ribs
S.sub.1 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
lesser number with the distance being measured between free ends
thereof, and
S.sub.2 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
greater number, with the distance being measured between free ends
thereof, and
said head portion of said spline element in contact with the
forward face of each said adjacent panel.
6. The wall construction of claim 4, including
each said panel consisting of a rearwardly disposed section having
a rearwardly facing skin and an insulating material panel section
and a forwardly disposed panel section disposed adjacent the
forward surface of said insulating material,
the head of said spline element interposed between said forwardly
disposed panel section and said insulating material,
the body portion of said spline element having an enlarged
generally channel shaped forwardly open recess provided with
sidewalls having resilient transversely angularly rearwardly
directed fin portions, and
a second spline element having a head portion, a substantially
rigid body portion extending into said forwardly open channel of
said spline body portion and having transversely projecting ribs
emerging from opposed sides thereof, at least one said rib on each
side of said second spline element in resilient fin deflecting
engagement with the free end of one said deflected fin.
7. The wall construction of claim 6, including
said head portion of said first spline element having a web-like
section interposed between said insulating material and said
forwardly disposed panel section, and
fastener means extending through each said forward panel section
and into said head portion of said second spline.
8. The wall construction of claim 7, including
a pair of web-like flanges extending transversely outwardly from
said generally parallel sidewalls of said first splice element at a
position rearward of the forwardmost portion of said splice element
and forward of the base thereof, and
said flanges disposed rearwardly of said insulating material and in
surface to surface engagement therewith.
9. A splice assembly, comprising
a splice element having a base portion and a pair of spaced
forwardly directed generally parallel sidewalls emerging from said
base and cooperating therewith to define a forwardly open
channel,
said splice element composed of a substantially rigid material,
at least one said sidewall having an inner surface provided with a
plurality of transversely inwardly directed ribs which divide said
sidewall into a series of transversely inwardly open notches,
a spline element having a body portion, a locking portion at one
end thereof and a transversely extending head portion at the other
end thereof,
said locking portion of said spline element having at least one
transversely angularly forwardly extending resiliently deflectable
fin element having a free end engaged within a notch of said splice
element, whereby relative separation of said splice element and
said spline element is resisted by the resilient interengagement
between said notches and said fins, and
the spacing between said transversely inwardly directed ribs and
the spacing between said transversely angularly forwardly extending
resiliently deflectable fins each being established by the Vernier
principle.
10. The splice assembly of claim 9, including
both said sidewalls have said notch defining ribs,
said locking portion having two said fin elements on each side
thereof,
said uncompressed maximum width of said locking portion of said
spline element is greater than the minimum distance between said
generally parallel sidewalls of said splice element taken between
the transverser inner extremities of the two rows of ribs,
said ribs of said generally parallel sidewalls having an angularly
forwardly disposed pilot surface which facilitates smooth movement
of said fin thereover during insertion of said spline element into
said splice element,
at least one of said splice element and said spline element having
its said ribs or fins disposed on one side thereof positioned in
relative staggered relationship with respect to said ribs or fins
disposed on the other side thereof, and
the other of said splice element and said spline element having its
said rib or fins disposed on one side thereof positioned in
relative aligned relationship with respect to said ribs or fins
disposed on the other side thereof, whereby one said element will
have staggered positioning of its said fins or ribs and the other
said element will have aligned positioning of its said fins or
ribs.
11. The splice assembly of claim 9, including
the spacing between transversely inwardly directed ribs of said
sidewalls and between said resilient fin elements of said locking
portion is determined by the relationship
NS.sub.1 = (N + 1) S.sub.2 wherein
N = the number of fins or ribs providing on the spline or splice
element which has the lesser number of fins or ribs
S.sub.1 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
lesser number with the distance being measured between free ends
thereof, and
S.sub.2 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
greater number, with the distance being measured between free ends
thereof.
12. The splice assembly of claim 11, including
said ribs on each said sidewall disposed in spaced relationship
with respect to adjacent ribs on said sidewall,
the body portion of said spline element having a web-shaped portion
and adjacent said head portion having a forwardly open channel
defined by an enlarged base portion and parallel spaced
sidewalls,
said body portion channel having rearwardly and transversely
inwardly directed resiliently deformable fins cantilevered from
each said channel defining sidewall,
a second spline element composed of a substantially rigid material
having a head portion and a body portion provided with transversely
outwardly directed ribs, and
said body portion of said second spline element disposed at least
in part within said body portion channel and said ribs in resilient
interlocking engagement with said resilient channel fins.
13. The splice assembly of claim 12, including
a pair of transversely outwardly directed flanges extending from
said sidewalls of said first splice element,
said splice element composed of aluminum, and
said first spline element composed of a resiliently deformable
plastic material.
14. The splice assembly of claim 13, including
said spline element locking portion having fins which have a length
greater than the width of that sector of said spline element from
which they emerge.
15. An adjustable locking assembly, comprising
a female element having a base portion and a pair of spaced
forwardly directed generally parallel sidewalls emerging from said
base and cooperating therewith to define a forwardly open
channel,
a male element having a body portion and a locking portion at one
end of said body portion,
one of said male element and female element having transversely
angularly oriented resiliently deflectable fin elements and the
other of said elements having a number of substantially rigid
generally transversely oriented ribs defining a plurality of
notches,
said male element extending into said forwardly open channel,
at least one transversely angularly extending resiliently
deflectable fin element having a free end engaged within a notch,
whereby relative separation of said female element and said male
element is resisted by the resilient interengagement between said
notches and said fins, and
the spacing between said transversely angularly resiliently
deflectable fin elements and the spacing between said transversely
oriented ribs each being established by the Vernier principle.
16. The adjustable locking assembly of claim 15 including
said resilient fins are disposed on said male element and are
directed transversely angularly forwardly,
said ribs are disposed on at least one said female element
sidewalls and extend transversely inwardly dividing said sidewall
into a plurality of notches, and
said female element is composed of a substantially rigid
material.
17. The adjustable locking assembly of claim 15 including
both said sidewalls have said notch defining ribs,
said locking portion of said male element having two said fin
elements on each side thereof,
said uncompressed maximum width of said locking portion of said
male element is greater than the minimum distance between said
generally parallel sidewalls of said female element taken between
the transverse inner extremities of the two rows of ribs,
said ribs of said generally parallel sidewalls having an angularly
forwardly disposed pilot surface which facilitates smooth movement
of said fin thereover during insertion of said male element into
said female element,
at least one of said female element and said male element having
its said ribs or fins disposed on one side thereof positioned in
relative staggered relationship with respect to said ribs or fins
disposed on the other side thereof, and
the other of said female element and said male element having its
said ribs or fins disposed on one side thereof positioned in
relative aligned relationship with respect to said ribs or fins
disposed on the other side thereof, whereby one said element will
have staggered positioning of its said fins or ribs and the other
said element will have aligned positioning of its said fins or
ribs.
18. The adjustable locking assembly of claim 16 including
the spacing between transversely inwardly directed ribs of said
sidewalls and between said resilient fin elements of said locking
portion is determined by the relationship
NS.sub.1 = (N + 1) S.sub.2 wherein
N = the number of fins or ribs provided on the male or female
element which has the lesser number of fins or ribs
S.sub.1 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
lesser number with the distance being measured between free ends
thereof, and
S.sub.2 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
greater number, with the distance being measured between free ends
thereof.
19. The adjustable locking assembly of claim 18 including
said ribs on each said sidewall disposed in spaced relationship
with respect to adjacent ribs on said sidewall,
a transversely enlarged head portion disposed on said male element
disposed on the opposite side of said body portion with respect to
said locking portion,
the body portion of said male element having a web-shaped portion
and adjacent said head portion having a forwardly open channel
defined by an enlarged base portion and parallel spaced
sidewalls,
said body portion channel having rearwardly and transversely
inwardly directed resiliently deformable fins cantilevered from
each said channel defining sidewall,
a second male element composed of a substantially rigid material
having a head portion and a body portion provided with transversely
outwardly directed ribs, and
said body portion of said second male element disposed at least in
part within said body portion channel and said ribs in resilient
interlocking engagement with said resilient channel fins.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an adjustable locking assembly adapted to
be effected and resiliently retained by adjustable splicing means.
The invention also relates to a number of end use applications for
such an assembly including a uniquely configurated splicing element
adapted to effect joinder of panels having aligned adjacent
marginal edges and a panel or window frame structure.
2. Description of the Prior Art
Various forms of panel joining means adapted to establish an
effective joint between spaced adjacent marginal edges of wall
panels have been known. It has also been known to provide such
structures and joint forming components which are adapted to be
adjustable and provide locking engagement for wall panels of
different thicknesses. See, for example, U.S. Pat. Nos. 1,890,615,
2,564,638, 3,303,626 and Canadian Pat. No. 835,012.
There remains a need for an aesthetically pleasing joint
construction which will effectively provide a number of positions
at which durable, effective resilient locking engagement may be
obtained. In addition, there remains a need for such a construction
which provides components which may readily be produced
economically and rapidly assembled in the field to yield further
economic advantages.
SUMMARY OF THE INVENTION
The wall construction of this invention provides a pair of uniquely
configurated splice joint elements adapted to establish resilient
interengagement and effectively secure various forms of wall
constructions including panels composed of several panel sections
and panel sections having a wide range of thicknesses. This is
accomplished by providing uniquely configurated construction
components which are formed in accordance with an application of
the Vernier principle.
The wall construction of this invention provides a concealed joint
between spaced marginal edges of aligned adjacent panels. The
splice joint assembly has a splice element and a spline element
extending into the space between the adjacent panels from opposite
sides and resiliently interengaged with each other therewithin. The
splice member, which is preferably composed of substantially rigid
material, has a base portion and a pair of generally parallel
sidewalls extending forwardly from the base portion and cooperating
therewith to define a forwardly open channel. At least one of the
splice element sidewalls has a plurality of transversely inwardly
projecting ribs which divide the sidewalls into a plurality of
notches. The spline element has a locking portion, a transversely
enlarged forwardly disposed head portion and a connecting body
portion. The spline element locking portion has at least two
transversely angularly forwardly directed resiliently deformable
fins protruding from at least one side thereof with at least one
resilient fin having a free end deflected and resiliently engaged
within a notch of the splice element. The head portion of the
spline element is in contact with a forward facing surface of the
adjacent panels.
A reference to members such as notches or fins being "aligned" or
in "alignment" as used herein shall refer to their being so
disposed that at least one of these members on one side of a splice
or spline element is connected to the splice or spline element at
substantially the same longitudinal position as a second such
member which is connected to the other side of such a splice or
spline element.
In order to obtain the maximum benefit of this invention the
notches of one splice element sidewall are positioned in relative
alignment with the notches of the other sidewall while the fins on
one side of the spline element are disposed in relative staggered
position with respect to the fins on the other side. Alternatively,
the notches may be provided in relative staggered position while
the fins are in relative aligned position.
In one preferred form of the invention, the spline element head
portion will be engaged with the outermost forwardly facing panel
surfaces. In another preferred form of the invention, the spline
element body will have an integrally formed forwardly open second
channel disposed closely adjacent to the spline element head. This
second channel is provided with sidewalls having transversely
inwardly angularly rearwardly directed elongated resilient fins. A
second spline element, preferably composed of a substantially rigid
material, has a head portion and a body portion extending into the
forwardly open second channel. The body portion of the second
spline element is provided with a number of transversely outwardly
directed ribs which engage and deflect the resilient fins of the
second channel to establish a resilient interlocking joint.
In one preferred form of the invention, the splice joint assembly
is adapted to provide a joint between a pair of panels composed of
interior and exterior panel sections having an interposed panel
section composed of an insulating material. The splice element in
this form is provided with an integrally formed second channel
which is rearwardly open and adapted to receive the edges of a pair
of panel sections to be joined. The rearwardly open channel may
assume various configurations which are adapted to provide an
effective joint. The entire splice element is preferably composed
of aluminum and formed by extrusion.
It is an object of this invention to provide an adjustable locking
assembly which has a refined graduation of adjustments and provides
resilient interengagement between component parts so as to
effectively resist relative separating movement of the parts.
It is another object of this invention to provide such a structure
wherein the adjustment graduations are effected in accordance with
a precise mathematical relationship which provides more effective
graduated interengagement and is adapted to be employed
economically in a wide variety of end uses.
It is another object of this invention to provide a wall
construction which is adapted to secure spaced marginal edges of
adjacent panels by means of a uniquely configurated splice joint
assembly.
It is another object of this invention to provide a splice joint
assembly which is adapted for adjustable resilient locking
engagement of adjacent panels and may be employed with single panel
section walls or multiple panel section walls including a wide
range of thicknesses.
It is another object of this invention to provide a pair of splice
joint assembly components which are adapted to be readily
economically produced and easily assembled in order to provide a
continuous uniform resiliently retained joint between adjacent
panels.
It is another object of this invention to provide a splice joint
assembly adapted for use in establishing an exterior building wall
and effecting joinder thereof to an interior wall with an
interposed insulating panel section.
It is another object of this invention to provide a panel or window
frame structure employing the adjustable locking assembly of this
invention.
These and other objects of the invention will be more fully
understood from the following description of the invention on
reference to the illustrations appended hereto.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an elevational view of a portion of a wall construction
contemplated by this invention.
FIG. 2 is a sectional view taken through 2--2 of FIG. 1
illustrating a preferred form of joint construction.
FIG. 3 is a view similar to FIG. 2, but illustrating a modified
form of splice joint assembly.
FIG. 4 illustrates a sectional view of one form of spline element
contemplated by this invention.
FIG. 5 illustrates, in exploded fashion, a modified form of spline
combination contemplated by this invention.
FIG. 6 illustrates a form of splice element adapted to be used in
connection with the spline elements of this invention.
FIG. 7 is an exploded view of a form of locking assembly
contemplated by this invention.
FIG. 8 is an exploded view of another form of locking assembly
contemplated by this invention.
FIG. 9 is a fragmentary sectional view of a window structure
employing the features of this invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As used herein, the term "panel" shall refer to a component or
components consisting of single panel section or a number of panel
sections disposed generally in face to face adjacency with respect
to each other so as to cooperate in forming a wall or other
panel-like construction.
Referring now in greater detail to the drawings, FIG. 1 illustrates
a wall construction having panel 2 secured to adjacent panel 4
along marginal edges (indicated generally by numerals 6, 8),
respectively, by means of joint 10, which in the form shown is
longitudinally continuous and coextensive with the panel edges 6,
8.
Referring now to FIG. 2, it is seen that, in the form shown, the
panels to be joined are composed of several panel sections.
Rearwardly disposed panel sections 16, 18 consist of an exterior
wall composed of a metal skin. Disposed immediately interiorly of
panels 16, 18 and preferably bonded thereto are insulating panel
sections 20, 22, respectively. The forwardly exposed panel sections
24, 26 may conveniently be composed of a suitable material such as
a fire resistant drywall and may have a decorative facing or finish
30, 32. These panels 2, 4 are so disposed with respect to each
other that a space 34 exists between the aligned marginal edges 6,
8. The splice element components provided by the form of invention
shown in FIG. 2 consists of a splice element 40 and a spline
element 42.
Referring now to the detailed illustrations of splice element 40
and spline element 42 shown in FIGS. 2 through 6, it is seen that
the splice element 40 has a base portion 44 and a pair of sidewalls
46, 48 extending forwardly from base portion 44 in spaced
relationship with respect to each other and preferably parallel to
each other. Base 44, which is generally V-shaped, and sidewalls 46,
48 cooperate to define a forwardly open channel 50. The inner
surface of each sidewall 46, 48 is provided with a plurality of
transversely inwardly projecting ribs 52 which divide the sidewall
into a plurality of inwardly open notches 56. The sidewalls 46, 48
are of substantially uniform width along their length except for
ribs 52. It is noted that in the form which has been illustrated,
the ribs 52 of one sidewall 46, 48 are positioned in staggered
relationship with respect to the ribs 52 of the other sidewall 46,
48 and are not aligned with each other. This results in notches 56
of one sidewall 46, 48 being staggered with respect to the notches
of the other. It is further noted that each rib 52 is provided with
a rearwardly disposed surface 60 which is preferably substantially
perpendicular to the sidewalls 46, 48 and a forwardly disposed
surface 62 which extends from the outer extremity of surface 60
angularly outwardly and forwardly. Each rib 52 is disposed in
spaced relationship with respect to adjacent ribs 52 disposed on
the same sidewall.
Unless otherwise indicated, reference herein to a fin being engaged
within a notch shall refer to a fin having an end portion in
resilient engagement with a notch defining rib and having a portion
extending into the notch.
Considering now the form of spline element shown in FIG. 4, it is
seen that the element has a body portion 70, a transversely
enlarged head portion 72 and a locking portion 74. In this form,
the body portion 70 preferably has a substantially uniform
thickness and a generally web-like configuration. The head 72 has
transverse flanges, which are preferably of substantially uniform
thickness, extending substantially perpendicular to the body
portion. The locking portion 74 which for clarity of illustration
may be deemed to be separated from the body portion by dotted line
76 (although this line need not represent an actual physical
division) will generally originate at a position closely adjacent
the first locking fin 78. These elongated resilient fins 78 are
preferably of substantially uniform cross sectional configuration
throughout their longitudinal extent and are preferably of
substantially uniform thickness between web 80 and their outer free
ends. These fins 78 preferably have a length greater than the width
of web 80 from which they are cantilevered.
The locking portion 74 is provided with at least two transversely
angularly forwardly extending resilient fins 78 on each side of web
80. These fins 78 are preferably disposed at an angle (.alpha.)
alpha which is preferably about 35.degree. to 60.degree. with
respect to the remainder of locking portion 74 and is 45.degree. in
the form shown. This angle assists materially in providing
resistance to joint separation. The fins 78 are resilient and the
spline element is preferably composed of a resiliently deformable
material such as plastic or rubber. The maximum width D of the
locking portion 74 in its uncompressed state is preferably greater
than the minimum internal width of forwardly open channel 50 by at
least the height of rib 52. This insures resilient transverse
inward deformation of fins 78 when spline 42 is inserted into
splice 40 and creates positive retention of the interlocking
engagement. The fins 78 are adapted to be resiliently deflected
from their angular cantilevered position when the spline element is
inserted into the splice element. This deflection and resultant
engagement of the fins 78 in the notches 56 produces an interlock
between the splice element and spline element. This interlock is
resiliently maintained and resists undesired separation of the
spline and splice elements.
Referring once again to FIG. 4, it is also noted that fins 78
disposed on one side of locking portion 74 are disposed in
staggered relationship with respect to fins 78 disposed on the
other side of locking portion 74. These create a refined graduation
with respect to the relative locking positions of the splice
element 40 and spline element 42. With respect to both the
staggered positioning of ribs 52 and elongated fins 78 it is
preferable to establish uniform staggering such that the spacing
between ribs 52 or fins 78 on one side is substantially equal to
the spacing between ribs 52 or fins 78 on the other side. In the
form illustrated in FIG. 4, the locking portion has a web-like
sector 80 from which the fins 78 extend. Web-like sector 80 may
conveniently be formed as an extension of body portion 70 and of
substantially the same thickness.
While the form shown in FIG. 4 provides both notches and fins
having relative staggered positions, in the preferred form of the
invention either the splice element 40 notches or the spline
element 42 fins will be staggered and the other will not. In one
preferred form, the notches of one wall of splice element 40 will
be positioned in alignment with the notches of the other wall,
while the fins of spline element 42 will be positioned in relative
staggered relationship. In another preferred form, the notches of
one wall of splice element 40 will be staggered with respect to the
notches of the other wall, while the fins emerging from one side of
web-like sector 80 will be aligned with the fins of the other side.
By providing relative staggering of either the notches or the fins,
but not both, the maximum effective graduation is obtained. In this
fashion a symmetrical component is adjustably interengaged with a
staggered component to effect refined graduation.
Referring once again to FIG. 2, it is seen that the spline element
42 has been engaged within the splice element 40 and the
cantilevered fins 78 have been subjected to resilient deflection
and have their free ends engaged within notches 56. It is noted
that the extent of introduction of the spline 42 into the splice 40
may be varied and as a result various panel thicknesses may
effectively be secured by means of the same components. It is
further noted that all of the fins 78 will not necessarily be in
engagement within notches 56. Engagement of one fin 78 of web 80
within a notch 56 is adequate to provide an effective resilient
interlocking engagement which resists relative axial separation of
the two splice elements 40, 42.
In the form shown in FIG. 2, head 72 of spline element 42 is in
restraining contact with facing surfaces 30, 32 of panels 24, 26.
This serves to close off space 34 from view and resist forward
movement of the panels 24, 26. If desired, the exterior surface of
head 72 may be provided with a decorative finish in order to
provide either uniformity of appearance with respect to facings 30,
32 or an aesthetically pleasing contrasting appearance. Also,
spline element 42 when composed of a thermally insulating material
will provide a thermal break between adjacent panels 2, 4.
Referring now once again to FIGS. 2 and 6, another preferred
structural embodiment of this invention will be discussed. As has
been indicated, the form of construction shown in FIG. 2 provides a
joint between interior panel sections 24, 26 and exterior panel
sections 16, 18. The splice element 40 of this invention may be
integrally formed with another panel joining element in order to
provide for economy of fabrication, more effective unitary joinder
between the outside panel joint and the inner panel joint as well
as ease of handling and installation. This is all accomplished by
the form of splice element 40 shown in FIGS. 2 and 6 which is
provided with an integrally formed second rearwardly open channel.
This channel defining portion 82 is preferably formed in a unitary
fashion with respect to splice element 40. This may conveniently be
accomplished by making the unit out of metal, such as aluminum, and
fabricating the same by an extrusion process. The channel defining
member 82 has a base wall 84, sidewalls 86, 88 and a channel
opening 90. Base wall 84 is disposed closely adjacent to generally
V-shaped base 44, with the rearward portion of base 44 preferably
merging into base wall 84. While the specific structural details of
the interior of member 82 form no part of the invention per se,
they will be briefly considered. Each sidewall 86, 88 is provided
with lower and upper sheet engaging elements 92, 94, respectively,
which serve to define panel receiving slots 96. Referring now to
FIG. 2, it is seen that re-entrant end portions 98, 100 of panel
sections 16, 18, respectively, are engaged within the slots 96. In
order to secure the panel section edges within the slots 96, a
suitable resilient sealing member 102 is provided. It should be
noted that this particular channel defining element 82 is
essentially the same as that shown as an independent panel joining
element in U.S. Pat. No. 3,232,395. It will be appreciated,
however, that other known forms of joint elements adapted to secure
re-entrant bends in the ends of adjacent panels may be employed in
combination with the splice element 40 of this invention. See for
example U.S. Pat. Nos. 1,854,438, 3,110,066 and 3,410,043. It is
the adaptability of the splice element 40 of this invention to use
in such a unitary combination which forms a portion of this
invention and not the specific configuration of channel defining
element 82.
As has been indicated above, FIG. 3 illustrates a similar form of
panel assembly to that shown in FIG. 2, but employs a modified form
of spline element. For convenience of reference, like numerals will
be employed in this figure to refer to equivalent components
previously discussed in connection with FIG. 2.
In the form of wall structure shown in FIG. 3, portions of adhesive
104 are positioned between the forward faces 106, 108 of panels 20,
22, respectively, in order to provide effective bonding
therebetween. It will be appreciated that, if desired, a continuous
adhesive may be employed and that the use of such an adhesive is
advantageous as it results in a more uniform, rattle free wall
structure with increased resistance to undesired bowing. Also, in
those instances where drywall is employed in panel sections 24, 26,
the continuous adhesive provides added reinforcement therefor.
Referring now in more detail to FIGS. 3 and 5, with emphasis upon
the splice joint assembly components, it will be noted that a
substantially identical splice element 40 has been employed with
one modification. The sidewalls 46, 48 are provided with
transversely outwardly directed flanges 110, 112, respectively,
which are integrally formed therewith and are spaced rearwardly
from mouth 114 of channel opening 50 and forwardly of base 44. The
forward surfaces of these flanges are in surface to surface
engagement with the rear surfaces of insulating material 20, 22,
respectively. These flanges 110, 112 cooperate with the portions of
sidewalls 46, 48 disposed forwardly thereof to provide resistance
to rearward or transverse inward displacement of panel sections 20,
22.
Considering the detailed illustration provided in FIG. 5, it is
seen that a first spline element 120 has a body portion 122, a head
portion 124 and a locking portion 126 separated from the body
portion in the illustration by dotted line 128. The locking portion
126 is provided with a plurality of angularly forwardly directed
resiliently deformable fins 130 which are so disposed as to provide
a staggered relationship between the fins on one side of web 132
and the fins on the other side thereof. These fins 130 would
preferably be employed with a splice element having aligned
notches. The effect of this staggered relationship is to reduce the
amount of relative closing movement between the splice element and
the spline element required in order to move from one stage of
interlock to the next succeeding stage of interlock. These
cantilevered deflectable fins 130 function in the same fashion as
fins 78 described above.
It will, therefore, be appreciated that first spline element 120
has a substantially identical locking portion 126 as does spline
42. The forward portion of the body 122 of spline 120 is provided
with a forwardly open channel 136. This channel 136 is defined by a
generally V-shaped base portion 138 and adjacent, preferably
parallel, sidewalls 140, 142. Each sidewall is provided with at
least two transversely angularly rearwardly directed resilient fins
144 which are preferably disposed at an angle of about 35 to
60.degree. with respect to sidewalls 140, 142. In the form shown,
they are also preferably provided in staggered relationship. Head
portion 124 has flanges 146, which are preferably of uniform
thickness, extending transversely outwardly from the forward
portion of sidewalls 140, 142.
A second spline element 150 which is preferably composed of a
substantially rigid material such as metal, or a suitable hard
plastic or rubber material, has a body portion 152 and a head
portion 154. The body portion 152 is provided on opposed sides with
a plurality of substantially rigid, transversely outwardly directed
ribs 156. The maximum width of the body portion 152 exceeds the
minimum transverse gap between the free ends of the two rows of
fins 144 in order that introduction of the body portion 152 into
forwardly open channel 136 will establish resilient generally
transverse outward deflection of fins 134 and create effective
resilient interlocking engagement between second spline element 150
and first spline element 120. The inclination of fins 134 increases
the resistance to undesired joint separation. In the form shown,
the ribs 156 are staggered. With fins 144 staggered, it would be
preferred to provide second spline element 150 with ribs which are
aligned i.e. ribs on opposed sides of body 152 emerge transversely
outwardly from the same longitudinal position.
In this fashion, first spline element 120 provides resilient
interlocking engagement between resilient fins 130 and ribs 52 of
splice element 40 and also provides resiliently retained
interlocking engagement between second spline element 150 and
resilient fins 144.
Referring now to FIG. 3, it is seen that the flanges 146 of head
portion 124 are interposed between panel sections 20 and 24 and
panel sections 22 and 26, respectively, while head portion 154 of
second spline element 150 exerts a rearward force against the
forward surfaces of outer panel sections 24, 26. This results in
compressive securement of panel sections 24, 26 between head 154
and flanges 146. If desired, additional fastening means 158, such
as nails or screws, may be driven through panel sections 24 and 26
and through flanges 146 to provide for additional rigidity and
reinforcement of the joint. If fastener means 158 are employed, the
use of second spline 150 may be eliminated. This facilitates the
use of conventional drywall muding and taping practices.
The number of fins 78, 130 and the spacing of fins and ribs should
have a definite mathematical relationship in order to achieve the
desired effect. A preferred means of establishing the relationship
of spacing between the ribs 52, 156 and fins 78, 130, respectively,
is to employ the Vernier principle. This results in a structure
providing optimum adjustability and effective interengagement.
Considering, more specifically, how this concept is applied to the
present system reference is made to FIG. 5. The formula applied
is:
NS.sub.1 = (N + 1) S.sub.2 where
N = the number of fins or ribs provided on the spline or splice
element of an interengaging pair which has the lesser number of
fins or ribs
S.sub.1 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
lesser number with the distance being measured between free ends
thereof
S.sub.2 = the distance between the closest two ribs or fins (be
they on the same side or opposite sides) of the element having the
greater number, with the distance being measured between free ends
thereof.
EXAMPLE
Reference is now made to FIG. 5 with attention directed toward
forwardly open channel 136 and second spline element 150. As open
channel 136 has a smaller number of fins 144 than the number of
ribs 156 on second spline 150, the number N is equal to 5, which is
the number of fins 144. The distance S.sub.1 may be taken between
the free ends of the rearwardmost fins 144, which are on different
sidewalls 140, 142 and will be assumed for purposes of illustration
to be 0.075 inch. Applying the formula the following results are
obtained:
N.sup.. S.sub.1 = (N + 1) S.sub.2
(5)(0.075) = 6 S.sub.2
S.sub.2 = (5)(0.075)/6
S.sub.2 = 0.0625 inch
Thus, the Vernier principle results in the spacing between the fins
or ribs on the element having the lesser number of fins or ribs
being greater than the spacing between elements on the member
having the greater number. This results in the desired refined
graduation which produces optimum adjustability.
It will also be appreciated that as the number of fins or notches N
is increased, the distance S.sub.1 more closely approximates the
distance S.sub.2. While as has been indicated all that is required
is single engagement between a notch and a fin, employing increased
multiples of N will increase the number of fins engaged within
notches at a given locking position.
It will be appreciated that the foregoing detailed description of
my adjustable locking assembly as employed in a panel joint
construction is merely one specific advantageous end use of this
structural combination. The general concept may be applied to
numerous end uses. The same variations disclosed in connection with
the joint structure may readily be incorporated in adjustable
locking mechanisms used for a variety of purposes. Considering FIG.
7 it is seen that a male element 160 is adapted to be inserted into
a female element 162. The male element 160 has a body portion 164
and a locking portion 166 shown as being divided by dotted line
168. As in the other embodiments, the male member has a plurality
of transversely angularly oriented resiliently deflectable fins
172. In the form shown, the female element has a base portion 174
and a pair of spaced forwardly directed generally parallel
sidewalls 176, 178. Each sidewall 176, 178 cooperates with the base
portion 174 to define a forwardly open channel 180. Each sidewall
176, 178 is provided with a plurality of transversely inwardly
directed substantially rigid ribs 182, 184, respectively, which
serve to define a plurality of sidewall notches 186, 188,
respectively. It is noted that in the form shown the ribs of one
sidewall 176, 178 are disposed in aligned relationship with respect
to the ribs of the other sidewall. As is preferred, the
corresponding male element 160 has staggered fins 172. As has been
indicated above an alternate preference would be to provide
staggered ribs and aligned fins.
The female element 162 shown in FIG. 7 is provided with a head
portion 190, 192 which is disposed generally perpendicular with
respect to sidewalls 176, 178 and angular transition portions 194,
196 connect the respective portions. It will be appreciated that
this general form of adjustable locking assembly is adapted for use
in a wide range of locking mechanisms where adjustability and
refined graduation, coupled with effective resilient retention, are
required.
While the form shown in FIG. 7 is the preferred approach which
involves the fins being present on the male element 160 and the
ribs on the female element 162, it will be appreciated that the
deflective resilient fins may be positioned within the female
member and the ribs in the male member as is shown in the lower
portion of FIG. 5.
The male element may be provided with a head portion such as those
shown in FIGS. 4 and 5 or with alternate forms of body portion and
end structure depending upon the specific end use which is
contemplated.
Referring now to FIG. 9, another specific end use structure will be
considered. In general, FIG. 9 shows a sectional view through the
frame of an insulated window. The frame has a structural member 200
and an insulating member 202. The structural member 200 and
insulating member 202 are so configurated and interlocked as to
provide effective compressively established retention of the
marginal edge 204 of window pane 206, which in the form shown is a
double paned or insulated glass structure. Interposed between the
marginal edge 204 and the structural member 200 and insulating
member 202 is glazing channel 208.
Considering now the structural details of the element, it is seen
that structural member 200 has a base portion 212 and a first
flange 214 which emerges from one side of the base portion and is
oriented generally perpendicular to the base portion 212. First
flange 214 has inwardly offset free end portion 216. The structural
member 200 also has a second flange 218 which is oriented generally
angularly with respect to base portion 212. Second flange 218
terminates in a re-entrant portion 220. Also emerging from the base
portion is divider wall 224 which is oriented generally parallel to
first flange 214. The divider wall 224 contains the female member
226 which is defined by an extension wall 228 which terminates in
sector 230 oriented generally parallel to divider wall 224. As in
the other embodiments illustrated, the female member is provided
with a plurality of ribs 234, 236 which define notches 238, 240,
respectively. The outermost portion of divider wall 224 has a
perpendicular flange 242 which terminates in a protrusion 244.
Considering now the insulating member 202 in detail, it is noted
that it has a base 250, a first flange 252 directed generally
perpendicular to the base 250 adjacent one end thereof. The base,
in the form shown, terminates in a channel shaped element 254 which
receives free end 216 of first flange 214. This provides for
effective joinder connecting first flanges 214, 252. Insulating
member 202 also has angularly disposed second flange 256 which has
a free end 258 and is provided with a channel shaped portion 260.
This channel shaped portion receives protrusion 242 of divider wall
224. It is noted that the insulating member 202 also has a
separating wall 266 which provides a male member having a body
portion 268 and a plurality of fins 270. At least one fin 270 is in
deflected resilient engagement within notches 238, 240. In the form
shown stop member 272 is also provided on insulating member 202. In
effecting assembly of the insulating member to the structural
member the male member is introduced into the female member and
relative closing movement is established until the desired stopping
point is reached. The precise stopping point will be determined in
part by the thickness of the window pane 206 and the degree of
compression of the channel shaped glazing member 208 which is
desired. It is noted that the glazing channel 208 has a first leg
276 interposed between the marginal edge 204 of the pane 206 and
re-entrant portion 220 of flange 218. The glazing channel 208 also
has a second leg interposed between marginal edge 204 and flange
242 and free end 258 of flange 256. In this fashion, the advantages
of the adjustable locking assembly of this invention may be
employed to effect a tight, durable panel or window frame assembly
at refined graduations.
While for purposes of simplicity of illustration, attention has
been focused on locking portions of spline elements provided with
fins or ribs on both sides and splice element and spline element
channels having ribs and fins on both sides, and this is the
preferred form of the invention, it will be appreciated that if the
desired ribs and fins may be advantageously provided on only one
side. For example, in FIGS. 2, 4 and 6, fins 78 may be provided
only emerging from the right of body 80 and not from the left with
body portion 80 having a smooth, web-like left surface. Similarly,
sidewall 46 would not have ribs 52, while sidewall 48 would. The
splice element 40 and spline element 42 could be so proportioned
that a surface of sidewall 46 would be in surface to surface
contact with a surface of body 80. At least two ribs 52 and two
fins 78 would be provided on the right side of the assembly.
Similarly, fins 144 and ribs 156 may be provided on one side only
with the other side remaining free of the same. The joint is
effected in the same manner as described above in connection with
the otherwise identical splice and spline elements having ribs and
fins projecting on both sides.
As is shown in FIG. 8, the male member 280 is provided with a
plurality of fins 282 disposed solely on one side of web 284. The
other side consists of a generally smooth bearing surface 286. Also
shown in this figure is a female member 290 which has an open
channel 292 and a plurality of notches 294 defined by ribs 296 on
sidewall 298. The opposite sidewall 300 has a substantially smooth
inner surface which is preferably adapted to be in surface to
surface contact with bearing surface 286 when the male member 280
is inserted into the female member 290.
The use of fins and ribs on both sides of the splice and spline
elements is preferred as it provides a distinct economic and
manufacturing advantage. For example, if fins are positioned on
only one side of the spline element the element must be fabricated
with a spacing of "X" between adjacent fins. The same graduation
may be effected by placing fins on both sides of the spline element
while effecting a spacing of "2X" between adjacent fins on the same
side of the spline member. Thus, in extrusion, for example, the
tooling is less intricate and distances between fins less
substantial. This facilitates ease of fabrication and produces an
economic saving while retaining the benefit of the Vernier
principle. A similar advantage is obtainable in connecting the
positioning of the splice element notches.
It will, therefore, be appreciated that the wall construction of
this invention as a result of the uniquely configurated splice and
spline elements provides an economical means for effecting a wide
variety of wall constructions facilitating use with a wide range of
panel material thicknesses and panel materials. This results in an
aesthetically pleasing appearance and maximum strength uniform
securement of the panels. This may readily be accomplished while
providing both economic savings in the field as a result of ease of
installation. In addition, economy in the splice component parts
results from the relative simplicity of manufacture and structural
designs which facilitate the use of readily available materials
having a reasonable cost.
In addition, the splice assembly components permit adjustability
which is of refined graduation as a result of the preferred
staggered positioning of the channel ribs or resilient fins. The
most advantageous means of providing such a structure is by means
of the above-described application of the Vernier effect. Also, the
splice member may conveniently be formed as a unit with an
outwardly open panel joining member composed of suitable material
such as metal and may be formed by processes such as extrusion. The
two forms of spline elements illustrated are preferably
longitudinally substantially coextensive with the adjacent marginal
edges of the panels to be joined. As a result of the head portion,
the gap between the marginal edges of the panels is concealed from
view and a decorative matching or contrasting aesthetically
pleasing appearance may be provided by the spline head and the
exposed panel faces. Also, the visual joint may be eliminated by
employing fastening means, such as nails, muding and taping. It
will further be appreciated that in addition to providing for
compressive resilient deflection of the spline in order to
establish a desired engagement, splice retention is effected
through mechanical interlock, the inclination of the spline fins
and the resiliency which is provided in the fin structures.
The adjustable locking assembly of this invention has a broad range
of applications wherein effective resilient locking retention and
refined graduation of locking positions in accordance with specific
geometric configurations are desired.
It will be appreciated that while, for convenience of illustration,
a specific form of adjustable locking structures including a
composite wall structure and a panel or window frame have been
shown, numerous forms of wall constructions be they interior
partition walls or exterior walls as well as a wide range of joints
between various types of panels may be provided with the adjustable
locking structures of this invention.
Whereas particular embodiments of the invention have been described
above for purposes of illustration, it will be evident to those
skilled in the art that numerous variations of the details may be
made without departing from the invention as defined in the
appended claims.
* * * * *