U.S. patent number 3,608,613 [Application Number 04/823,095] was granted by the patent office on 1971-09-28 for sliding door.
This patent grant is currently assigned to Frantz Manufacturing Co.. Invention is credited to Keith Halliwell.
United States Patent |
3,608,613 |
Halliwell |
September 28, 1971 |
SLIDING DOOR
Abstract
A sliding door formed from a plurality of panels hingedly
connected transversely to the direction of sliding.
Inventors: |
Halliwell; Keith (Brookvale,
New South Wales, AU) |
Assignee: |
Frantz Manufacturing Co.
(Sterling, IL)
|
Family
ID: |
3724864 |
Appl.
No.: |
04/823,095 |
Filed: |
May 8, 1969 |
Foreign Application Priority Data
|
|
|
|
|
May 15, 1968 [AU] |
|
|
37857/68 |
|
Current U.S.
Class: |
160/229.1;
160/201; 160/232 |
Current CPC
Class: |
E06B
3/485 (20130101) |
Current International
Class: |
E06B
3/32 (20060101); E06B 3/48 (20060101); E06b
003/14 (); E06b 003/22 () |
Field of
Search: |
;160/201,209,229,232 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Caun; Peter M.
Claims
I claim:
1. In an upwardly sliding door,
a plurality of door sections hinged to each other along their
horizontal edges,
each door section comprising a series of connected interengaging
parallel panels disposed one above the other when the door is in a
vertically extending closed position,
each panel being generally U-shaped in cross section and having a
base and parallel legs extending from said base,
the exterior surface of said base forming a flat uniplanar surface,
one of said legs having a free end portion bent to extend parallel
to said base in a direction away from said legs and forming a first
flange,
the opposite of said legs having an end portion bent to extend
along and parallel to said base to form a second flange,
said second flange being lapped by said first flange of a next
adjacent downwardly extending panel when said panels are connected
together to form a door section and the outer surfaces of said
bases of said panels are in a common plane, and
hinge members secured to said second flanges of said panels and
extending above and below each door section and connecting said
panels together with all of said flanges extending upwardly, said
second flanges retaining said first flanges to said hinge members
by clamping engagement of said second flanges with said first
flanges.
2. The upwardly sliding door of claim 1,
wherein the second flange is wider than the first flange and has an
inwardly bent edge to form a stiffening rib.
3. The upwardly sliding door of claim 1,
wherein the two parallel legs of the channel are at obtuse and
acute angles respectively with respect to said base, to slope
downwardly and outwardly when the door is assembled.
4. The upwardly sliding door of claim 1,
wherein the hinge members secured to said second flanges and
connecting said panels together include a plurality of parallel
spaced muntins extending vertically and secured to said second
flanges and each having a backwardly and downwardly bent portion
formed to extend downwardly along the first flange of the top panel
to clip said first flange of the associated top panel of the series
of panels to the associated muntin.
5. The upwardly sliding door of claim 4,
wherein the end of each muntin bearing against the first flange at
the top of the door section, has two spaced apart rolled-in tongues
on opposite sides of said means formed to clip said first flange to
said muntin,
wherein the bottom of the next upwardly spaced muntin has a part
extending between said rolled-in tongues and bent outwardly to fit
between said first mentioned rolled-in tongues to accommodate a
hinge pin to pass through said tongues and hingedly connect said
muntins together, and
wherein the means formed to clip said first flange to said muntin
is integral with said muntin and extends from the space between
said first mentioned rolled-in tongues and is bent backwardly from
said muntin over the first flange.
6. The upwardly slidable door of claim 5,
wherein the two parallel legs of the channel form an obtuse angle
and an acute angle respectively with the channel base and slope
outwardly and downwardly when the panels are in assembled relation
with respect to each other.
Description
The invention relates to sliding doors and more specifically to
doors for garages, factories and the like which are flexible being
formed of horizontal door sections and are slidable upwardly.
Many different forms of such doors are known in which door sections
of suitable width are hinged together each section carrying its own
rollers guided in rails extending vertically along the door opening
and being curved at the top of the opening to extend horizontally
into the garage or the like to guide the door when opened from the
vertical into a horizontal position.
It has also been proposed when using metal as door material to form
each door section from a number of narrower panels which are
interlocked by a folded-over edge of one panel receiving the
straight edge of a neighboring panel. This construction has,
however, certain disadvantages. The connection between the panels
is not completely watertight and requires additional sealing means
and in addition it is difficult to connect muntins to each door
section in a simple manner to give the required stiffness to each
door section. It is also difficult and costly to attach hinges
directly to the edges of the door sections in such a way that in
the closed position of the door the door sections are so close
together that not only has the door a uniform appearance but that
adjoining door section do not allow ingress of water between
them.
All the above disadvantages are overcome according to the invention
by an upwardly sliding door assembled from a plurality of door
sections hinged to each other along their horizontal edges, each
section being composed of one or more panels extending across the
full width of the door, each panel having a U-shaped cross section
to form a channel, the exterior surface of the base of said channel
forming the effective panel surface, and one edge of said channel
being bent outwardly to form a first flange in a plane parallel to
the plane of said panel surface, and the opposite edge of said
channel being bent inwardly to form a second flange in
substantially the same plane as said first flange, said first
flange on one panel overlapping at least part of said second flange
on an adjacent panel, when the effective surfaces of said adjacent
panels are in a common plane, and the sections formed by said
panels being assembled so that said flanges are pointing
upwardly.
In one form of the invention several panels forming a section are
held together by one or more channel-type muntins extending across
the rear of the panels and being fixed by rivets or other suitable
means to the inwardly bent flanges of the panels forming a rigid
door section. By hinging a number of these sections together a door
of any required size can be built up. As the outwardly bent flange
of the uppermost panel of one door section overlaps in the manner
as described above the inwardly bent flange of the adjoining
section a good weather seal is provided between the individual door
sections in the same manner as between the individual panels.
As the bent-over flanges of the panels are generally not wide
enough to allow the mounting of hinges for the connection of
individual door sections the hinges can be incorporated in the ends
of the muntins.
One embodiment of the invention with a minor modification thereof
will be described hereinafter in connection with the drawings, in
which:
FIG. 1 shows schematically an assembled door incorporating the
invention,
FIG. 2 is a side perspective view partly cut away of the panels
forming the door sections,
FIG. 3 and 4 show details of the hinge parts formed on the muntins
for connection between panels of adjacent door sections,
FIG. 5 shows schematically the connection between the panels of
adjacent sections when the door is closed, and
FIG. 6 shows a modification of the arrangement shown in FIG. 5.
FIG. 1 shows a door 1 partly opened which is assembled from four
sections 2 each section being composed of three individual panels 3
extending over the full width of the door 1 and being rigidly
connected with each other by a muntin 4. The door 1 is mounted in
known manner between guide rails 5, so that it can be moved
upwardly and slides on horizontal rails into the garage or the
like. To give the door flexibility the sections 2 are connected by
hinges 6 which form part of the muntins 4 as will be described
hereinafter. The door 1 can be counterweighted in known manner by
means of a spring assembly 7.
As can be seen, for example in FIG. 2, the panels 3 are shaped in
such a manner that not only the panels forming a section 2, but
also the outer panels of adjacent sections form a waterproof
connection between each other, without obstructing the movement
between sections provided by the hinges 6 of the muntins 4.
Each panel 3 has a substantially U-shaped cross section to form a
channel, having a base 8 and parallel legs extending therefrom. The
exterior surface of the base 8 forms the effective panel surface.
As can be seen from FIGS. 2 and 3 one leg of the channel is bent
outwardly to form a flange 9 which extends in a plane parallel to
the plane of the base 8 and the opposite leg of the channel is bent
inwardly to form a flange 10 which can be stiffened by forming
thereon a rib 11.
The flange 9 is narrower than the flange 10 and in the assembled
position partly overlaps the flange 10 of the neighboring panel.
Thus any rain water entering between the panels is prevented by
flange 9 from penetrating the inside of the door. The
beforementioned shape of the panels 3 does not obstruct the
movement between the door sections 2 which are assembled from a
plurality of panels 3 by means of muntins 4.
The muntins 4 are of U-shaped cross section to give them additional
stiffness and one or more muntins, depending on the width of the
door, extend across each section 2 made up, for example, of three
panels 3. Each muntin 4 is fixed, for example by rivets 12 to the
wider flanges 10 of the panels 3 forming each section 2. The
flanges 9 of the adjacent panels are clamped between the muntins 4
and the flanges 10 and are thus also held in position.
As the flanges 9 are not wide enough to secure hinges thereto, the
hinges are formed at the ends of each muntin 4 at the edges of each
section 2, as shown in FIG. 3. The end of the muntin 4 which is
secured to the flange 10 has a rolled-in tongue 13 forming the
center part of the hinge 6. The other end of the muntin has two
spaced rolled-in tongues 14, 14 which can receive between them the
hinge part 13 of the adjacent section. The part of the muntin 4
between the hinge parts 14, 14 forming a lug 15, is bent backwards
over the flange 9 (see FIG. 4) to provide a connection between the
muntin 4 and the flange 9 of the panel at the edge of a
section.
The sections 2 can easily be assembled or separated by using as a
hinge pin a split pin 16 (FIG. 3), but any other type of hinge pin
can be used instead.
FIG. 5 shows schematically the panels 3, the muntins 4 and the
hinges 6 of the two adjacent sections 2 whereby the channel sides
of the panels are at right angles to the base 8. A modification
thereof is shown in FIG. 6 in which the parallel sides of the
channel forming each panel form an obtuse and an acute angle
respectively with the base 8 so that the sides slope outwardly and
downwardly to facilitate the runoff of any water that may have been
driven between adjacent panels.
The above-described door construction provides a door built up of a
plurality of door sections, each formed by a plurality of panels
giving a uniform appearance from the outside and being weatherproof
not only between individual panels but also between the various
door sections without necessitating any special sealing means. The
construction furthermore lends itself to mass production as all
parts can be assembled in a simple manner.
* * * * *