The present invention provides a frame with posts, the
width of which being adjustable to the thickness of the wall. Furthermore, the invention
relates to a door, wherein this frame consists of two upright frames and one transverse
frame, and a window, comprising a frame with two upright and two transverse frames.
Background of the invention
A door is composed of two parts, namely a fixed part, called
door frame or door casing, and a moving part, called door leaf. The function of
the frame is finishing the opening in the structure of a building, and furthermore
it offers a doorstop for the door leaf and the possibility to attach hinges and
lock pieces. The frame consists of two upright posts and one transverse post which
are attached to the wall and which are composed of finishing frames at both sides
of the wall which grip the casing, usually provided with a doorstop. The frame of
a window is often composed in the same way, except with the difference that two
transverse posts are provided instead of one.
When casing doors and windows, the frame needs always to
be adapted to the thickness of the wall, which often may differ, for example according
to the type of stone, the thickness of the plasterwork or the type of inner wall.
At present, this is done by sawing the casing down to size or by using a kind of
prefab frame which operates by means of a sliding system in the finishing frame.
However, the problem with this finishing system is that
the finishing frame is located too far from the casing which leads to aesthetic
deviations. Moreover, only a difference in thickness of maximum 2 to 3 cm may be
accommodated, such that a dealer still needs to have several widths of casings on
Also, when sawing the casing down to size, several problems
arise. As an individual seldom has the necessary tools for sawing down a casing,
the casing is often processed to the exact width by a skilled person with a professional
expensive saw. Then, the skilled person has the choice to carry out this narrowing
at its workshop, which is not very practical from an organizational and logistical
point of view, or he can choose to saw down the casing at the construction site,
which is again very laborious and rather time-consuming.
As can be clearly concluded from the problems described
above, there is a need for a door and/or window frame which does not show these
disadvantages. Hence, the present invention provides a solution for these problems
by providing a frame which can be adapted in a very simple manner to the thickness
of the wall.
Summary of the invention
In its most general form, the present invention provides
a frame or casing according to claim 1, wherein the width of the frame is adjustable.
Because of this, the frame may be ordered and assembled without knowing in advance
the thickness of the wall, and time-consuming and impractical pretreatments, such
as sawing the casing down to size, become redundant. Furthermore, it offers also
a solution to the dealer who does not need to store a vast stock of casings with
a lot of different widths. Also, another advantage is that the adaptation in the
frames is not visible compared to the effect obtained with the sliding system in
the finishing frame.
The frame of the invention is further characterized in
that a frame comprises two partial frames which fit into each other, the first partial
frame having a fixed width, whereas the width of the second partial frame is adjustable.
Preferably, the second partial frame contains breaking areas in the longitudinal
direction, along which the partial frame may be easily and in a controlled manner
be broken on certain predefined locations. In this way, after fitting the second,
shortened partial frame with the first partial frame, a frame is composed and consequently
also a frame with a smaller width, which is adapted to the thickness of the wall.
Fitting the two partial frames together is done by means
of a fitting means, wherein the fitting means part of the second partial frame is
at least partial complementary to that of the first partial frame. This complementarity
ensures that both partial frames fit easily and firmly into each other. The fitting
means consists of a male and female part, preferably respectively a long lip with
breaking areas and a recess, wherein the recess is able to receive at least a part
of the long lip. The female part is present in the partial frame with fixed width,
whereas the male, adjustable part is present in the partial frame with adjustable
width. To ensure additional anchoring of both partial frames, in one embodiment
of the invention both parts of the fitting means are provided with interlocking
Depending on the desired finishing, the frames of the casing
can be made of MDF, another type of fibreboard, a type of wood, aluminium or a plastic.
Finally, the present invention also relates to a door with
an adjustable frame as described above, consisting of two upright posts and one
transverse post, and it further provides a window composed of a frame with two upright
and two transverse posts according to the invention.
Short description of the figures
Detailed description of the invention
- Fig. 1 shows a cross section of a frame according to an embodiment of the invention
in an assembled state.
- Fig. 2 shows a cross section of a frame according to another assembled embodiment
of the invention wherein the fitting means consists of interlocking hook elements.
The objective of the present invention is to provide a
frame for a door and/or window, the width of which being adjustable to the thickness
of the wall in a simple manner. For this, use is made of a frame consisting of two
partial frames which fit into each other, one having a fixed width, the other having
an adjustable width.
Fig. 1 shows a cross section of a frame according to one
embodiment of the invention in an assembled state. The frame consists of a first
(2) and a second (3) partial frame which is fitted between two finishing
frames (1, 4), which have been placed at both sides of the wall (10).
The first partial frame (2) has a fixed width and comprises a doorstop (11)
for stopping the door leaf (9), and a protruding lip (7) with a recess
(12) in between. The second partial frame (3) is characterized by
an adjustable width and comprises a long lip (8) provided with breaking areas
(5) by means of indentations made in the interior layer of the long lip (8).
The two partial frames (2, 3) fit into each other by means of a (partially)
complementary fitting means consisting of a female part, namely the recess (12)
between the doorstop (11) and protruding lip (7) of the first partial
frame (2), and a male part, namely the long lip (8) with breaking
areas (5) of the second partial frame (3).
By means of triangular indentations at the interior, i.e.
the non-visible side after assembly, breaking areas (5) are created in the
long lip (8) of the second partial frame (3). Because of this, the
desired part of the second partial frame (3) may easily be broken off. When
subsequently fitting both partial frames (2, 3) together, the part where
the long lip (8) has been broken off, fits the recess (12) under the
doorstop (11) in a concealed way. In this way, the width of the second partial
frame (3) can be shortened until, after fitting together, the total width
of both partial frames (2, 3) approximately corresponds to the thickness
of the wall. The fact that a recess (12) has been provided which receives
the broken part of the long lip (8), has several advantages. It ensures a
good connection and attachment of both partial frames (2, 3) after assembly,
the broken part is not visible after assembly and no fragments may further break
off after the breaking.
As shown in Fig. 2, in another embodiment, the long lip
(8) of the second partial frame (3) also comprises hook areas (6)
adjacent to the breaking areas (5). In this figure, a hook element is located
at the interior of the long lip (8), between each two adjoining breaking
areas (5), here a semi-ball, which forms the hook area (6), and attached
to it is a more planar part which is rounded towards the next breaking area (5).
The protruding lip (7) of the first partial frame (2) comprises a
hook element essentially complementary to the semi-ball-shape of the long lip (8).
By implementing the long (8) and protruding (7) lip in this way, it
is possible to hook the second, tailor-made broken partial frame (3) into
the first partial frame (2), such that both partial frames (2, 3)
are more firmly fitted together before they are fitted in between both finishing
frames (1, 4).
The assembly of a frame according to the present invention
occurs in the following manner. Firstly, the first partial frame (2) is exactly
positioned and levelled at its position and screwed tightly against the wall. The
screws are preferably introduced in the protruding lip (7), as this part
is not visible after assembly. The broken to size partial frame (3) is hooked
into the first partial frame (2) and is thus immediately levelled. When using
the embodiment of Fig. 1, the hooking comprises sliding the broken to size long
lip (8) into the recess (12). When mounting the embodiment of Fig.
2, the second partial frame (3) with the part where the long lip (8)
has been broken of, is firstly positioned perpendicular to the protruding lip and
subsequently put in place by moving and rotating at the same time the second partial
frame (3) with respect to the first partial frame (2). The long lip
(8) is moved over the more planar rounded part until the broken part has
disappeared in the recess (12) and the hook element is located in the complementary
part of the protruding lip (7). Subsequently, along both sides of the composed
frame (2, 3) a finishing frame (1, 4) is placed which ensures the
further fitting of the composed frame (2, 3). Eventually everything may be
injected or fixed with construction foam.
The choice of material the frames are made of, depends
on the desired finishing. When a massive wooden door leaf is chosen, preferably
the frame is also made of the same type of wood. Painted door leafs may also be
framed with massive wood but as soon as the frame is also to be painted, preferably
fibreboard is used and even more preferably MDF, because of its better painting
results. When washability is an important factor, plastic or aluminium is preferred,
which is also frequently chosen for its metal colour. Moreover, other types of material
are also possible, but as the previous ones are the most common ones, others are
not discussed here in further detail. Of course, it is clear for the skilled person
that the present invention is not restricted to the described types of material,
but that this discussion should be considered as purely illustrative.
The above described frames are especially designed for
the formation of a frame or casing for a door and/or window. To this end, in the
case of the door, at the side two upright frames and on top one transverse frame
is mounted. In the case of a window, at the bottom also a transverse frame is provided.
The invention thus protects also a door and/or window comprising a frame with one
or more features of the invention.
Two essential features of the invention are the presence
of breaking areas (5) and the combination of a hook connection (6)
with a protruding lip (7), as a result of which the frames may be mounted
much more easily and more rapidly, both by a skilled person and a layman. Furthermore,
the frame may be adapted to the thickness of the wall in a very simple way, namely
by breaking by hand, as a result of which the measuring in advance and time-consuming
and cumbersome pretreatments, such as sawing down the casing, become superfluous.
For a dealer, this has the advantage that he only needs to have a limited stock
of casings with several widths available.