U.S. patent number 3,867,790 [Application Number 05/424,908] was granted by the patent office on 1975-02-25 for stay arrangement for a window or door of the turn-and-tilt type.
This patent grant is currently assigned to Frank Wilh. GmbH. Invention is credited to Wilhelm Frank.
United States Patent |
3,867,790 |
Frank |
February 25, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
STAY ARRANGEMENT FOR A WINDOW OR DOOR OF THE TURN-AND-TILT TYPE
Abstract
The top of the panel in a window or door of the turn-and-tilt
type is secured to the associated frame by a pivot assembly having
a vertical axis and attached to the frame and by an arm whose one
end portion is conformingly received in a connector on the pivot
assembly. The connector is a channel whose flanges slope obliquely
toward each other from the web so as to permit sliding longitudinal
movement of the arm, but to prevent transverse movement of the arm
out of the channel. Cooperating, partly adjustable abutments limit
the longitudinal movement of the arm relative to the connector. The
free end of the arm is movably attached to the panel top.
Inventors: |
Frank; Wilhelm (Leinfelden,
DT) |
Assignee: |
Frank Wilh. GmbH (Leinfelden,
DT)
|
Family
ID: |
5864943 |
Appl.
No.: |
05/424,908 |
Filed: |
December 14, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Dec 20, 1972 [DT] |
|
|
2262341 |
|
Current U.S.
Class: |
49/381; 16/360;
16/367 |
Current CPC
Class: |
E05D
15/5205 (20130101); Y10T 16/5445 (20150115); Y10T
16/5472 (20150115); E05Y 2900/148 (20130101); E05Y
2800/37 (20130101) |
Current International
Class: |
E05D
15/48 (20060101); E05D 15/52 (20060101); E05d
015/04 () |
Field of
Search: |
;49/381,399,400,246,248,250,247,249 ;160/206,199,118,117
;16/191,182,1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Taylor; Dennis L.
Attorney, Agent or Firm: Berman; Hans
Claims
What is claimed is:
1. A stay arrangement for a window or door panel pivotally movable
relative to an associated frame comprising:
a. a pivot assembly having a stationary part adapted to be attached
to said frame, and a movable part connected to said stationary part
for relative movement about an axis;
b. a connector member fixedly attached to said movable part and
elongated radially relative to said axis, said connector member
being channel-shaped and having a web portion and two flange
portions sloping away from said web portion at respective acute
angles and toward each other;
c. an elongated arm member, one longitudinally terminal portion of
said arm member being received in said connector member in
conforming, longitudinally slidable engagement with said web and
flange portions;
d. securing means for securing the other longitudinally terminal
portion of said arm member to said panel; and
e. limiting means for limiting relative longitudinal movement of
said arm member in said connector member.
2. An arrangement as set forth in claim 1, wherein said arm member
is a flat bar having top and bottom faces and lateral edge faces
narrower than said top and bottom faces, said edge faces being
beveled for conforming engagement with said flange portions, each
edge face being formed with at least one laterally open notch.
3. An arrangement as set forth in claim 2, wherein said notch
tapers in a lateral direction.
4. An arrangement as set forth in claim 1, wherein one of said
members is formed with a bore therethrough, and the other member is
formed with a recess therein, said bore and said recess
communicating in all operative positions of said pivot assembly,
said limiting means including a pin element having an axis and
received in said bore for pivotal movement about said axis thereof,
and an enlarged head element fixedly fastened to one axial end of
said pin element, said head element being received in said recess
and dimensioned for angular movement in said recess during said
pivotal movement, an orthogonal projection of said head element in
a plane radial relative to the axis of the pin element having a
geometrical center, and said axis of the pin element being radially
spaced from said center.
5. An arrangement as set forth in claim 4, wherein said projection
has the shape of a quadrangle having rounded corners.
6. An arrangement as set forth in claim 4, wherein said head
element includes tool engaging means engageable by a tool for
rotation of said plate element about the axis of said pin
element.
7. An arrangement as set forth in claim 4, wherein said one member
is said arm member.
8. An arrangement as set forth in claim 4, wherein said limiting
means further include a lug on said connector member, said arm
member being formed with a recess, said lug being received in said
recess with clearance in the direction of elongation of said arm
member.
9. A window or door comprising, in combination:
a. a frame member defining one side of an opening
b. a panel dimensioned for being received in said opening; and
c. the stay arrangement set forth in claim 1,
1. said stationary part being fixedly fastened to said frame
members, and
2. said securing means securing said other longitudinally terminal
portion of said arm member to said panel.
Description
This invention relates to windows and doors of the turn-and-tilt
type, and particularly to a stay arrangement for use with such
doors or windows.
The doors or windows with which this invention in concerned have
panels secured to the associated frames by at least partly
disengageable hinges so that the panel may be turned about a
vertical axis relative to the frame in the manner of a casement
window or swinging door, or alternatively tilted about a horizontal
axis, normally extending along the bottom edge of the panel, so as
to permit ventilation through the gap between three sides of the
panel and corresponding frame elements while still providing a
measure of privacy. While friction will normally hold the panel in
any turned position, a stay is necessary to limit the tilting
movement of the panel. Yet, the stay must not interfere with the
alternative turning movement.
It has been proposed heretofore to provide two axially spaced
hinges connecting the panel and the frame for turning about a
vertical axis, to make the lower hinge disengageable, and to
combine the stay arrangement with the upper hinge in such a manner
that the weight of the panel is at least partly transmitted to the
frame in all open positions of the panel. This arrangement presents
problems.
It is necessary that clearances between the frame and panel be held
to a minimum for proper closure of the frame opening by the panel.
Sagging of door or window panels interferes with conforming
engagement of the panel in the frame opening even where simple and
rugged hinges are employed. When the hinge or pivot structure
simultaneously must perform the function of a stay for the tilted
panel, sagging is even more difficult to prevent, and may originate
not only in the frame, the panel, or other elements of the
building, but also in the stay arrangement itself.
To solve this problem, it has been proposed in German Published
application No. 2,115,323 to include in the stay arrangement
provisions for varying the radial spacing of the panel from the
vertical axis of the associated pivot or hinge assembly so that
sagging or other lack of fit of the panel in the frame opening may
be compensated for. While the known apparatus is effective, it is
relatively complex and correspondingly costly. The radial position
of the door or window panel cannot be adjusted in the known device
without at least partly disassembling the door or window, and the
adjustment can be made only in relatively coarse steps.
It is an object of this invention to provide a stay arrangement of
the type described which is very simple in its structure and
therefore inexpensive, yet rugged. It is a concomitant object to
permit adjustment of the panel position by means of primitive hand
tools or even simpler substitutes for such tools without
interfering with the assembled condition of the stay arrangement.
Yet another object is the provision of a mechanism which permits
the stepless radial shifting of the panel position without which a
panel originally precisely fitted into its frame cannot be adjusted
for sagging or like changes in its condition.
The invention is equally applicable to doors and windows of the
tilt-and-turn type described above, and will be discussed
hereinbelow with reference to a window. It will be understood,
however, that, for the purpose of this invention, door panels and
door frames are interchangeable with window panels and window
frames, and that any statement made hereinbelow with reference to a
window is equally applicable to a door.
In its more specific aspects, the stay arrangement of the invention
includes a pivot assembly having a stationary part adapted to be
attached to the window frame and a movable part connected to the
stationary part for relative movement about an axis. A connector is
fixedly attached to the movable part and elongated radially
relative to the pivot axis. It is channel-shaped and has a web
portion and two flange portions sloping away from the web portion
at respective acute angles and toward each other. An elongated arm
has one longitudinally terminal portion received in the connector
in conforming, longitudinally slidable engagement with the web and
flange portions of the connector. Means are provided for securing
the other longitudinally terminal portion of the arm to the window
panel. Means are further provided for limiting relative
longitudinal movement of the arm in the connector.
Either the arm or the connector may be formed with a bore
therethrough and the connector is formed with a recess if the bore
is in the arm, and vice versa. The bore and recess directly
communicate in all operative positions of the pivot assembly. The
afore-mentioned limiting means include a pin element, such as a
cylindrical rivet, having an axis and received in the bore for
pivotal movement about its axis. A plate element is fixedly
fastened to one axial end of the pin element and is received in the
recess, the dimensions of the plate element and the recess being
selected for permitting angular movement of the plate element in
the recess during the pivotal movement of the pin element. A
projection of the plate element into a plane radial to the axis of
the pin element has a geometrical center, and the axis of the pin
element is radially spaced from this center.
Other features, additional objects, and many of the attendant
advantages of this invention will readily be appreciated as the
same becomes better understood by reference to the following
detailed description of a preferred embodiment when considered in
connection with the appended drawing in which:
FIG. 1 is a fragmentary, partly exploded, perspective view of a
window provided with a stay arrangement of the invention; and
FIGS. 2 and 3 respectively show the stay arrangement of FIG. 1 in
sections on the lines II--II and III--III.
Only a small portion of the window panel retained by the stay of
the invention is illustrated in FIG. 1, namely the horizontal top
member 40 and the glass pane 41 of the window. The window is of the
tilt-and-turn type and is fastened to the partly illustrated window
frame 43 by partly releasable hinges along one of the upright sides
of the panel (on the right in FIG. 1) and along the horizontal
bottom member of the panel in a manner known in itself and not
shown. As seen in FIG. 1, the window panel is tilted inward of the
house toward the viewer so that a ventilating opening is formed
between the window frame and the top and sides of the window panel
while the bottom of the panel is hingedly fastened to the window
frame.
The stay arrangement with which this invention is more particularly
concerned includes an arm 1 which is a flat metal bar of
rectangular cross section and is normally secured to a pivot
assembly 2 fixedly mounted on the window frame 43. Only the two
longitudinal ends of the arm 1 are shown. One end of an elongated
link 3 is pivoted to the arm 1 near one end of the latter, the free
end portion of the arm carrying a fixedly fastened, depending rivet
4. The rivet is slidably received in a guide slot 5 of a bar-shaped
fitting 6 fixedly attached to the window top 40 by wood screws 42.
The end 5' of the slot 5 remote from the pivot assembly 2 is
enlarged for passage therethrough of ahead on the rivet 4, the
remainder of the slot being too narrow to permit passage of the
rivet head which moves longitudinally in a groove of the window top
40 in a known manner not specifically shown. The other end of the
link 3 is hingedly fastened to the fitting 6.
The pivot assembly 2 includes two, coaxial, axially short hinge
knuckles 7 fixedly fastened to the window frame 43 and axially
separated by a long, cylindrical knuckle 10 rotatable on the
vertical pivot pin 9 which passes through the three knuckles. The
knuckle 10 carries a vertically elongated bracket 8 of L-shaped
cross section which conformingly abuts against the window frame 43
in the closed position of the window panel. In that position of the
window panel, the arm 1 and the fitting 6 are superposed in
parallel relationship, and that relationship is maintained when the
panel is swung in a horizontal plane about the pivot assembly 2 and
a lower, releasable pivot, not shown.
The bracket 8 has two integral, vertically elongated sheet metal
parts 11, 12 arranged at right angles to each other. The part 12 is
located between the window panel and the window frame in the closed
window. A connector 14 is fixedly attached to the part 12 of the
bracket 8. It has the approximate shape of an elongated channel
whose web 15 is horizontal in all operative positions, and whose
flanges 16, 16' are obliquely inclined toward each other at
respective acute angles to the web 15, so that the open space in
the connector 14 tapers upwardly. A rectangular aperture 17 in the
web 15 is elongated in the direction of elongation of the
connector. An integral portion 18 of the flange 16' constitutes a
lug normally bent into the space bounded by the web 15 and the
flanges 16, 16'.
The end portion 19 of the arm 1 remote from the rivet 4 has a
smaller width than the longitudinal main portion of the arm and has
beveled edge faces 20 shaped for conforming, sliding engagement
with the flanges 16, 16' of the connector 14 so that the end
portion 19 may be slipped into the connector 14 longitudinally, but
cannot be moved out of the connector in a transverse direction
through the opening between the flanges 16, 16'. The main portion
of the arm 1 has wide top and bottom faces 21 and narrow, lateral
edge faces 22 which define the uniform, rectangular cross section
of the arm 1 over most of its length.
The end portion 19 is shaped by first punching away lateral
portions of the bar blank from which the arm 1 is made, and by
thereafter shaping the newly cut edges of the end portion 19 under
pressure to form the beveled edge faces 20. Flow of the metal under
pressure is facilitated by notches 23 formed in the bar blank
during the initial cutting operation to provide overflow wells for
the metal displaced during the pressing step. The notches 23 thus
taper transversely to the arm 1. A somewhat larger recess 24 also
is punched into the blank and receives the lug 18 in the assembled
device with sufficent clearance to permit limited longitudinal
movement of the arm 1 in the connector 14 while preventing
longitudinal withdrawal of the arm from the connector, as is
evident from FIG. 3.
The top and bottom faces of the end portion 19 are also connected
by a bore 25 which is aligned with the aperture 17 in all relative
longitudinal positions of the connector 14 and the arm 1 permitted
by the lug 18. As is best seen in FIG. 2, the bore 25 receives a
rivet 26 in the assembled device. The rivet is received in the bore
25 with a friction fit tight enough to prevent spontaneous rotation
of the rivet 26 about its axis. The bottom end of the rivet 26 is
fixedly attached off-center to an approximately square plate 27
received in the aperture 17 and dimensioned to permit rotation of
the plate 27 in the aperture and of the rivet 26 in the bore 25 by
means of a screw driver inserted in a groove 31 on the underside of
the plate 27.
The distances between the axis of the rivet 26 and the four narrow
sides 29 of the plate 27 are different, and the four rounded
corners 30 which connect the sides 29 are also differently spaced
from the rivet axis. When the window is tilted in the open position
shown, the arm 1 is stressed outward of the connector 14 by the
weight of the window panel which depends from the arm. The arm 1
may slide outward of the connector until a selected side 29 or
corner 30 of the plate 27 abuts against the transverse face 32 of
the web 15 in the aperture 17. When the window is tilted back into
the closed position, the precise fit of the window panel in the
frame 43 depends on the proper horizontal spacing of the window
panel from the axis of the pivot assembly 2. This spacing may be
adjusted by turning the plate 27. The adjustment is stepless as is
inherent in the shape of the plate 27.
The illustrated apparatus is assembled by first attaching the
knuckles 7 to a stile of the window frame 43, inserting the knuckle
10 attached to the connector 14 between the knuckles 7 and driving
the pin 9 home. The lug 18 is straight at this stage of the
assembly operation so that it does not interfere with insertion of
the arm 1 into the connector 14 until the end portion 19 is fully
received between the flanges 16,16' whereupon the lug 18 is bent
into the recess 24 of the arm 1.
The plate 27 carrying the rivet 26 is introduced from below into
the aperture 17 until the rivet 26 is inserted in the bore 25. The
rivet thereafter is expanded so as axially to secure the plate 27
and to impede rotation of the rivet and the plate. The link 3 and
fitting 6 are preferably assembled with the arm 1 prior to
insertion of the latter in the connector 14, and assembly is
completed by attaching the fitting 6 to the window top 40 by means
of the screws 42.
During the tilting of the window panel about an axis along its
bottom edge, the arm 1 swivels about the axis of the pivot assembly
2, the rivet 4 moves longitudinally into the narrow end of the slot
5, and the link 3 moves hingedly relative to the arm 1 and the
fitting 6. During turning movement of the window panel about the
axis of the pivot assembly 2, the arm 1 is superposed on the
fitting 6, and there is no relative movement of the arm 1 and the
fitting. The weight of the window panel is at least partly
transmitted to the window frame 43 by the rivet 4, the link 3, the
arm 1, and the pivot assembly 2 whenever the window is open in the
tilted or turned position.
The groove 31 in the plate 27 is readily accessible when the window
panel is in the tilted, open position, and the proper relative
position of the window panel and the window frame may thus be
adjusted by means of a screwdriver or the like tool without
disassembling the stay arrangement. Adjustment is usually necessary
from time to time to compensate for sagging of elements of the
window assembly or settling of the building of which the
illustrated window is a part.
The recess 24 and the lug 18 are dimensioned so that the lug cannot
travel over the full length of the recess 24 as long as the plate
27 is in its operating position. Abutting engagement between the
lug 18 and a transverse face of the arm 1 in the recess 24 prevents
excessive tilting of the window panel if the plate 27 should be
damaged or lost.
A square plate 27 with rounded corners 30 is most conveniently
formed, but the plate may be circular or elliptic, or of elongated
rectangular shape, for example, without change in its function as
long as the axis of the cylindrical rivet 26 is radially offset
from the geometrical center of the plate, that is, eccentric
relative to an orthogonal projection of the plate 27 in a plane
radial relative to the axis. The term "plate member," as employed
in this specification, will be understood not to be limited to a
structure having two parallel major faces, but to embrace enlarged
heads on the rivet or pin element 26 which are shaped otherwise.
Other variations will readily suggest themselves.
It should be understood, therefore, that the foregoing disclosure
relates only to a preferred embodiment of the invention, and that
it is intended to cover all changes and modifications of the
example of the invention herein chosen for the purpose of the
disclosure which do not constitute departures from the spirit and
scope of the invention set forth in the appended claims.
* * * * *