U.S. patent number 3,878,647 [Application Number 05/402,582] was granted by the patent office on 1975-04-22 for door panel structure.
This patent grant is currently assigned to Europatent S.A.. Invention is credited to August Burgers.
United States Patent |
3,878,647 |
Burgers |
April 22, 1975 |
Door panel structure
Abstract
A door panel structure which includes an inner frame covered
toward the outside along the major planes of the door panel
structure by panels which also cover a lock pocket on opposite
sides of the door panel structure and an adjacent recess for an
outer door plate fitting so that the door panel structure can be
used for leftward and rightward opening doors. The inner frame
structure also includes on opposite edges of the door panel
structure bores for receiving hinge bolts. All of the prebored
holes or bores are covered toward the outside by cover means that
can easily be drilled through at the building lot when it has been
decided whether a leftward or rightward opening door is
desired.
Inventors: |
Burgers; August
(Erkelenz-Gerderath, DT) |
Assignee: |
Europatent S.A. (Luxemburg,
LU)
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Family
ID: |
5857929 |
Appl.
No.: |
05/402,582 |
Filed: |
October 1, 1973 |
Foreign Application Priority Data
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Sep 30, 1972 [DT] |
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2248152 |
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Current U.S.
Class: |
49/382; 49/503;
52/787.1; 52/784.1 |
Current CPC
Class: |
E06B
3/825 (20130101); E06B 2003/7055 (20130101); E06B
2003/7046 (20130101) |
Current International
Class: |
E06B
3/82 (20060101); E06B 3/70 (20060101); E05d
007/02 () |
Field of
Search: |
;49/380,382,501,503,504 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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35,767 |
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Oct 1966 |
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SF |
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588,641 |
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May 1947 |
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GB |
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Primary Examiner: Downey; Kenneth
Attorney, Agent or Firm: Becker; Walter
Claims
What I claim is:
1. A panel structure which includes an inner frame structure that
in upright position of the door panel structure has two
substantially vertical beams arranged in horizontally spaced
relationship to each other, two cover panels respectively mounted
outside on opposite sides of said vertical beams and fully covering
up the outer sides of said vertical beams and the space confined
thereby, each of said vertical beams being provided with a
horizontally extending lock pocket extending in a direction
substantially parallel to said cover panels and at an at least
approximately right angle to the longitudinal direction of said
beams in upright position of said door panel structure, each side
of said inner frame structure also comprising a recess provided at
the outer end of said lock pocket and wider than the latter and
adapted to receive an outer plate fitting provided with screw holes
and adapted to cover up the respective adjacent entrance to said
lock pocket, a dummy plate detachably inserted into said recess and
substantially filling in the space thereof, and cover means
covering said dummy plate up toward the outside of said door panel
structure, said vertical beams each near said lock pocket being
provided with a bore extending in a direction transverse to the
major plane of said cover panels for receiving handle elements and
key parts, said transverse bore being covered toward the outside by
said cover panels, said dummy plates being provided with screw
holes, and screw means extending through said screw holes into said
beams for detachably connecting said dummy plates to said beams,
said screw holes having their axes located substantially where the
axes of the screw holes of the outer plate fitting will be located
when taking the place of the respective dummy plate.
2. A door panel structure according to claim 1, in which in upright
position of the door panel structure the two substantially vertical
beams near their vertical edges are provided with pre-bored holes
for receiving threaded hinge bolts, said last mentioned holes being
closed toward the outside of said door panel structure.
3. A door panel, in which both vertical side edges of said door
panel comprise a horizontally extending lock pocket adapted to
receive a door lock and also comprise a recess provided at the
outer end of said lock pocket and wider than the latter and adapted
to receive an outer mounting plate of a door lock, a dummy plate
corresponding in its dimensions substantially to the dimensions of
said recess and covering the adjacent entrance to said lock pocket,
and coating means forming the finished surface layer of said both
side edges of said door panel and covering up said dummy plate in a
not visible manner toward the outside of said door panel.
4. A door panel, in which both vertical side edges of said door
panel comprise a horizontally extending lock pocket adapted to
receive a door lock and also comprise a recess provided at the
outer end of said lock pocket and wider than the latter and adapted
to receive an outer mounting plate of a door lock, a dummy plate
corresponding in its dimensions substantially to the dimensions of
said recess and covering the adjacent entrance to said lock pocket,
and coating means forming the finished surface layer of said both
side edges of said door panel and covering up said dummy plate in a
not visible manner toward the outside of said door panel, said door
panel being at said both side edges provided with prebored holes
for receiving hinge bolts, said pre-bored holes being closed toward
the outside of said door panel by said coating means.
5. A door panel, in which both vertical side edges of said door
panel comprise a horizontally extending lock pocket adapted to
receive a door lock and also comprise a recess provided at the
outer end of said lock pocket and wider than the latter and adapted
to receive an outer mounting plate of a door lock with connecting
holes for screw means, said recess being provided with holes, the
axes of said holes corresponding to the axes of said connecting
holes in said mounting plate, a dummy plate corresponding in its
dimensions substantially to the dimensions of said recess and
inserted into said recess and covering the adjacent entrance to
said lock pocket, said dummy plate being provided with means for
engagement into said holes of said recess and for detachably
holding said dummy plate in said recess, and coating means forming
the finished surface layer of said both side edges of said door
panel and covering up said dummy plate in a not visible manner
toward the outside of said door panel, said door panel being at
said both side edges provided with pre-bored holes for receiving
hinge bolts, said pre-bored holes being closed toward the outside
of said door panel by said coating means.
6. A door panel which includes an inner frame structure that in
upright position of the door panel has two substantially vertical
beams arranged in horizontally spaced relationship to each other,
two cover panels respectively mounted outside on opposite sides of
said vertical beams and fully covering up the outer sides of said
vertical beams and the space confined thereby, said door panel
comprising at both vertical side edges of said door panel a
horizontally extending lock pocket adapted to receive a door lock
and also comprising a recess provided at the outer end of said lock
pocket and wider than the latter and adapted to receive an outer
mounting plate of a door lock, a dummy plate corresponding in its
dimensions substantially to the dimensions of said recess and
detachably inserted into said recess and covering the adjacent
entrance to said lock pocket, and coating means forming the
finished surface layer of said both side edges of said door panel
and covering up said dummy plate in a not visible manner toward the
outside of said door panel, said door panel being at said both side
edges provided with pre-bored holes for receiving hinge bolts, said
pre-bored holes being closed toward the outside of said door panel
by said coating means, and said vertical beams of said inner frame
structure being each near said lock pocket provided with bores
extending in a direction transverse to the major plane of said door
panel for receiving handle elements and key parts, said transverse
bores being covered toward the outside by said cover panels.
Description
The present invention relates to a door panel which consists of an
inner structure and two thin plywood panels which are connected to
the inner structure and form the two lateral surfaces of the door
panel.
Door panels of the above-mentioned type are produced in the
following manner: first, a frame-like inner structure is formed
from wood strips, wood bars, or the like, which inner structure is
then on both sides confined by thin plywood panels or hard fiber
panels. When making such door panels in factories, it is customary
to drill those bores on the vertical edge of the door panel which
serve for receiving the connecting pins or studs of so-called drill
bands (Einbohrbaender), which form the hinge connection of the door
panel to a door frame. At the other vertical rim portion of the
door panel, a lock pocket with a recess (Stulpaussparung) is milled
out into which a door lock can be inserted with a sheeting
(Stulpblech) which comprises the bores for the connecting screws.
As a rule, within the region of the lock pocket, also the bores
were drilled through the plywood panel and the inner structure
through which the handle and the key of the built-in door lock
extend or can be passed through. This prefabrication of the
heretofore known door panels determines whether the door will be
pivotable toward the left or toward the right, and later changes in
the door panel for purposes of changing the opening direction of
the door are excluded and non-permissible, especially when the door
panel is of a natural wood or is finish prevarnished. This means
that the door panels required for a building had, with regard to
the opening direction and with regard to the required number of
pieces, to be pre-determined in advance, and deviation from a
prepared assembly plan was not possible. Furthermore, the
manufacturer or wholesaler had to keep in stock door panels for
left-hand and for right-hand opening of the doors to be
installed.
It is, therefore, an object of the present invention to provide a
door panel which can selectively be used for doors opening toward
the left and doors opening toward the right, and which can be
economically produced in mass production, can easily be transported
to the building lot, and only at the building lot will it be
necessary to determine to which side the door finally has to be
opened.
It is another object of this invention to provide a door panel of
the above-mentioned type which will permit reducing the stock
keeping costs for door panels by approximately 50%.
These and other objects and advantages of the invention will appear
more clearly from the following specification, in connection with
the accompanying drawing, illustrating a horizontal section through
a door panel according to the present invention, the upper and
lower portions respectively of the drawing being on different
levels.
The door panel according to the present invention, which comprises
an inner structure and two thin plywood panels which are connected
to said inner structure and form the two side surfaces of the door
panel is characterized primarily in that the inner structure at
both vertical marginal portions is provided with a lock pocket and
with a prepared recess intended for receiving the sheeting of a
door lock and which recess has inserted and detachably connected
therein a dummy which fills in the recess and covers the lock
pocket. The door panel according to the invention is furthermore
characterized in that the surface of the stepped area (Falzflache)
of the door panel is provided with a surface layer which covers up
the dummy so as to hide the latter, while preferably the inner
structure is at both lock pockets provided with handle and keyhole
bores covered by the plywood panels.
Referring now to the drawing in detail, the door panel according to
the present invention illustrated in the drawing includes an inner
structure which comprises strips, or the like, that extend in the
manner of a frame along the marginal areas of the door panel. The
drawing shows the two vertical ties or bars 1 and 2 at the
left-hand and right-hand marginal areas of the door panel. In
finished condition of the door panel, this inner structure is, on
both sides, covered by relatively thin panels 3 and 4 of plywood,
hard fiber, or the like, so that the door panel represents a kind
of hollow body. In conformity with the present invention, the two
marginal areas or ties 1 and 2 of the door panel are provided with
a lock pocket 5 for receiving a customary door lock. The drawing
shows two horizontal sections through the door panel at different
height so that only the lock pocket 5 is illustrated at one
marginal portion of the door panel. Furthermore, both ties 1 and 2
are provided with a recess 6 which serves for receiving the
customary sheeting of a door lock which contains the bores for the
connecting screws. Inserted into each recess 6 is a dummy 7 which
fills in said recess 6 and covers up the lock pocket 5. The dummy 7
is detachably connected in the recess 6. Preferably, the dummy 7 is
provided at the same area as the sheeting of a door lock with
connecting bores and by means of screws is connected in the recess
6 so that the same connecting screws and screw holes can be used
for the installation of a door lock. The folded surface 8 of the
door panel is provided with a surface cover 9, for instance, in the
form of a synthetic strip or in the form of a veneer strip, which
covers the dummy 7 at both marginal areas of the door panel and
makes the dummy 7 completely invisible. Prior to confining the door
panel by the two plywood sheets, both ties 1 and 2 are expediently
from the start provided with bores 10 which are needed in order to
be able to introduce the door handle and also a wrench to the
built-in door lock. Also these prefabricated bores 10 are made
invisible by the subsequently assembled panels 3 and 4. Both
marginal areas or ties 1 and 2 of the door panel are additionally
provided with prefabricated bores 11 which serve for receiving the
drill bands forming the hinge between the door panel and a door
frame. These bore holes 11 are likewise covered at the two marginal
areas of the door panel by the surface layer 9 and are made
invisible. In conformity with the desired opening direction of the
door, it should be noted that when assembling the door panel at one
marginal area, that portion of the cover 9 which covers the dummy 7
is cut out, for instance, by means of a knife and the dummy is
pulled out of the recess 6, whereupon the door lock is inserted.
Within the region of the prefabricated handle, bores and keyholes
10, it is merely necessary while employing a drilling templet to
drill through the two thin panels 3 and 4. At the other rim of the
door panel it is merely necessary to pierce or drill through the
cover 9 in order to expose the necessary drilling bores 11.
As will be evident from the above, the present invention permits
the manufacture of a single standard design of the door panel which
standard design can be used for a door opening toward the left as
well as for a door opening toward the right and can be so mounted
that only this one standard design has to be kept in stock while
the recesses or drilled holes provided at both marginal areas for
the installation of a lock and preferably also for the installation
of drilling bands will be invisible. This is of importance for
finish prevarnished door panels or for door panels made up of
natural wood. Moreover, the present invention makes it possible
with a few quick and simple manual operations to expose said
recesses for installation of a lock or the drill bands, so that the
installation of the door panel can be carried out in a minimum of
assembly time.
It is, of course, to be understood that the present invention is by
no means limited to the specific showing in the drawing, but also
comprises any modifications within the scope of the appended
claims.
* * * * *