U.S. patent number 3,925,933 [Application Number 05/430,812] was granted by the patent office on 1975-12-16 for structural members for mounting and guiding sliding doors.
This patent grant is currently assigned to Georg Spellmann Hannov.-Holz-Industrie. Invention is credited to Manfred Reuter.
United States Patent |
3,925,933 |
Reuter |
December 16, 1975 |
Structural members for mounting and guiding sliding doors
Abstract
This invention relates to structural members for mounting and
guiding sliding doors and includes an integral extrusion to avoid
the high expenditure for mounting the entire structure. The
integral extrusion profile is torsionally rigid, and has runner and
guide rails arranged exactly vertically, one above the other, which
are engaged by runner and guide rollers of the carriage of L-shaped
cross-section supporting a door board.
Inventors: |
Reuter; Manfred (Misburg,
DT) |
Assignee: |
Georg Spellmann
Hannov.-Holz-Industrie (Hannover-Kleefeld, DT)
|
Family
ID: |
5868496 |
Appl.
No.: |
05/430,812 |
Filed: |
January 4, 1974 |
Foreign Application Priority Data
Current U.S.
Class: |
49/409; 16/96R;
16/87R; 16/97 |
Current CPC
Class: |
E05D
15/0639 (20130101); E05D 15/0652 (20130101); E05D
15/0626 (20130101); E05Y 2800/672 (20130101); E05Y
2201/614 (20130101); E05Y 2900/132 (20130101); E05Y
2201/688 (20130101); Y10T 16/381 (20150115); Y10T
16/379 (20150115); E05Y 2900/00 (20130101); E05Y
2600/628 (20130101); Y10T 16/35 (20150115) |
Current International
Class: |
E05D
15/06 (20060101); E05D 013/02 () |
Field of
Search: |
;49/409-411,231
;16/87,96,97 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Downey; Kenneth
Attorney, Agent or Firm: Collard; Allison C.
Claims
What is claimed is:
1. A structural member for mounting and guiding sliding doors for a
building structure comprising:
an integral extrusion profile having opposed, linear runner and
guide rails arranged vertically with the guide rail disposed above
the runner rail, said extrusion including an integrally formed
hollow box section disposed between the runner and guide rails for
increasing the torsional and structural rigidity of said extrusion,
said extrusion profile includes a recess for accommodating a lower
part of a fanlight, said extrusion profile having an upwardly
projecting trapozoidal portion adjacent said upper guide rail
having a horizontal slot;
a horizontal member having an inclined "L" shaped end with a
horizontal part snuggly engaged in said slot;
an L-shaped carriage having one arm pivotably coupled to said
rollers, said carriage having at least one oblong hole for
adjustable receiving at least one guide roller so that said guide
roller is vertically adjustable between said opposed rails;
runner and guide rollers being pivotably mounted to said carriage,
and said carriage comprising fastening screw means for supporting
the door vertically below the rollers, said fastening screw means
being adjustable with respect to said carriage so as to permit the
height of the door to be adjustable;
said runner and guide rollers engaging the runner and guide rails
respectively, said rollers having a concave runner cross
section;
said hollow box section forming an opening having a vertical
depending lowermost portion extending below said runner rails, and
said L-shaped carriage to form a connice with the door, and
including adjacent said lowermost vertically depending opening
portion a thickened corner portion having a groove and a sealing
ledge disposed in said groove for slidably contacting and sealing
the space between the door and the box section.
Description
Constructions composed of a number of individual structural members
are in use for suspending and guiding sliding doors. These known
constructions however, have various disadvantages. Initially, a
large amount of labor has to be expended to join, assemble, and
secure these conventional sliding door structures. There are
particular difficulties in obtaining the exact fit and alignment of
the individual parts with respect to one another. The ledges or
reglets to be screwed to the runner and guide rollers could not be
arranged exactly vertically on top of one another. The consequence
thereof was a one-sided wear of the rollers together with loud
rolling noises. In constructions of the type employed up to now, it
was not possible to use carriages of identical construction since
they were not interchangeable with each other.
This invention provides structual members for suspending and
guiding sliding doors which avoids the actual high expenses for
mounting them, and eliminates the necessity for aligning the guide
rails after installation.
In solving this problem, the part which can be mounted at a certain
location of the building is in the form of an integral extrusion
profile which is torsionally rigid. It has runner and guide rails
arranged exactly vertically above one another which are engaged by
the runner and guide rollers with concave rolling surfaces for a
carriage of L-shaped cross-section which carries the door board. As
an additional structural development according to the invention,
two runners are mounted at the carriage, and thereabove, two guide
rollers, with the guide rollers being adjustable in height through
oblong holes and fastening screws. The door board is arranged
vertically under the rollers and is also capable of being adjusted
in height. At the lower end of the extrusion profile, a groove or
way is provided, extending in the direction of movement of the door
to receive a sealing ledge. To increase the rigidity of the
extrusion profile, its vertical part may take the form of a hollow
or concave box. It is also possible to provide a recess in the
extrusion profile for receiving the lower part of a fanlight if
required.
The great advantage of this invention resides in the reduction of
work required for mounting and assembling the entire structure of
the individual structural members. The separate alignment of the
runner rails can be now completely avoided. After the fastening
screws for the upper guide rollers are loosened, it is possible to
push them downwardly and to mount the carriage without difficulty.
In keeping with the precision of the extrusion profile, the
carriage is mounted exactly vertically, below the runner and/or
guide rollers which engage the runner and guide rails arranged
exactly vertically above one another. This eliminates a constantly
acting momentum upon the rollers and rails, and these parts are
protected against premature wear, and do not provide unpleasant
sliding or rolling noises. Due to the convex form of the runner and
guide rails, and the concave form of the runner and guide rollers,
there is adequate safety against laterial pendulous displacements
of the sliding door so that no additional guides at the foot of the
door are required.
The time that can be saved for mounting the installation is about 6
hours with considerable savings in the costs for materials. Since
it was formerly necessary to use a left and a right carriage, now
the carriages may be of identical construction. The door board
suspended from the carriage may be easily adjusted in height by
simply turning the fastening screws. They can thus be adapted to
prevailing local conditions.
The invention will now be described in connection with the
embodiment illustrated in the drawing.
The extrusion profile 1 is provided with an upper rail 2 and a
lower runner rail 3. These rails are engaged by runner rollers, and
a guide roller 6, mounted on an L-shaped carriage 4. Upper roller 6
is adjustable in height through the oblong holes 7 after loosening
the fastening screws. Exactly vertically below the runner and guide
rollers 5 and 6, there is mounted a sliding member 9 which in turn
there is mounted with two fastening screws 12 extending through
slots 11 and engaging the carriage 4 so as to be adjustable in
height. Mounting bolt 12 is locked by a nut 13. At the lower
portion of profile 1, a groove or way 14 extending in the
longitudinal direction is located to receive a sealing ledge 15
which had been arranged in prior art constructions in an extra
profile which was screwed to the other part. By loosening the screw
with nut 8, it is possible to displace the guide rollers 6 in
downward direction and to disengage and lift carriage 4 from runner
rail 3. It is possible to adjust sliding member 9 in height in a
simple manner by resetting the screw 10 through slot opening
11.
The vertical portion of the extrusion profile is in the form of a
concave box which increases the rigidity of the structure.
While only a single embodiment of the present invention has been
shown and described, it will be obvious to those persons skilled in
the art that many changes and modifications may be made thereunto
without departing from the spirit and scope of the invention.
* * * * *