Window or door
The invention relates to a window or door according to the preamble of claim 1.
To restrict or prevent the dynamic and, in individual cases, self-destructive movement of
window casements, e.g. due to wind, it is desirable that these casements are locked to
the frame after a slam even without moving the locking-bar fitting. Further movement of
the casement from this locked position should only be initiated by the user. Locking-bar
fittings are described, for example, in DE 10 2013 100 308 A1.
The invention has the object of solving this problem and creating a correspondingly
designed window or door.
The invention solves this problem by means of the subject matter of independent claim
1. Advantageous embodiments can be taken from the dependent claims.
According to claim 1, a window or a door is provided, which has an outer frame
comprising a plurality of outer-frame profiles and a casement which is arranged thereon
so as to be rotatable about a horizontal or vertical axis of rotation and is composed of a
plurality of outer-frame profiles, wherein a locking-bar fitting having one or more locking
bars is also formed on the casement frame, with which first locking elements can be
moved into a locking position for engaging behind corresponding locking elements on
the outer frame and back into an open position, wherein furthermore a catch device is
provided, with which the casement can be latched in a latching position on the outer
frame even when the locking-bar arrangement is in the open position and the casement
is closed after opening, wherein the catch device is released from the latching position
by means of the locking-bar fitting in such a way that the latter is moved from an open
position into a locking position and then back into the open position.
This has several advantages. By automatically activating the catch device, the
casement can be easily locked or held in place on the outer frame when
slamming/closing. In this way, the casement is locked to the outer frame by a catch
device after slamming shut (and also after slow closing), without the locking-bar fitting
having been moved to its locking position. It is then particularly advantageous that the
catch device can be deactivated simply - e.g. by moving the handle into the locking
position and then back into the opening position. This is because, surprisingly, no
additional manual intervention is required to operate the window despite the catch
2
device, apart from the movement of the locking-bar fitting into the locking position,
which is usually necessary in this situation anyway after the casement has been
slammed shut, e.g. by wind to lock the casement, and then - immediately or later - back
into the open position when the casement is to be opened.
It is preferred - since it is structurally simple - that the catch device has a locking-pin
assembly arranged on the at least one movable locking bar(s) of the casement frame
with a preferably spring-loaded locking pin movable by a drive means and a latch
assembly arranged on the outer frame with a base and with a latching-hook section with
a latching lug, behind which the spring-loaded locking pin is latched in the latching
position. Furthermore, according to a particularly preferred variant, it may be initially
provided that the latching-hook section is movably arranged on the base and that the
base is immovably fixed to one of the outer-frame profiles of the outer frame, wherein
the latching-hook section can be moved on the base back and forth between a release
position and a latching position. The drive means that acts on the locking pin can be a
spring. The spring that acts on the locking pin can be designed in a variety of ways, for
example as a coil spring or disc spring or as an elastomer spring or similar. However,
the drive means acting on the locking pin can also be realized in other ways, for
example by a motor or a magnetic drive device, or the locking pin could use gravity as
the drive means.
The catch device can be installed in outward-opening casements of windows that are
inserted into an opening of a building. However, it may also be provided in inwardopening casements of windows that are installed in an opening of a building.
This mobility can then be realized in various ways. For example, the latching-hook
section can be arranged on the base so that it can pivot. However, according to another
variant, it can also be arranged on the base so that it can be moved like a carriage.
According to a preferred embodiment, it may also be provided that the latching-hook
section is movable on the base into a release position with the aid of the locking pin and
that the latching-hook section can be moved back into the latching position by means of
a spring acting on it. This is a simple variant for moving the latching-hook section back
to its initial position. However, it could also be moved back in other ways, e.g.
magnetically or optionally with the aid of gravity as a drive means (with the appropriate
installation position) or with another drive means.
3

It is structurally simple if the locking-pin assembly has a guide housing from which the
locking pin protrudes, wherein the locking pin can be repeatedly pushed from this
position into the guide housing by a distance S by pressing on its free end.
There are various options for implementing the required functionality of releasing the
catch device from the latched position by means of the locking-bar fitting in such a way
that it is moved from an open position into a locked position and then back into the open
position.
Thus, the latching-hook section of the latch assembly can have a support surface on
which the locking pin rests in a latched state on the latch assembly, wherein the support
surface is designed and arranged such that the locking pin projects from the guide
housing only part of the distance S. It may then be further advantageously provided
that, after the locking-bar fitting has been moved into a locking position, the locking pin
is extended further from the latched state than on the support surface of the latchinghook section, and that, when the locking-bar fitting is moved again from the locking
position into the open position, the locking pin moves the latching-hook section in such
a way that the casement can be opened again.
The invention also provides a simple and uncomplicated method for deactivating the
catch device of a window or door according to one of the preceding claims, with which,
when the casement is in the closed position and the catch device locks the casement to
the outer frame, the catch device is released from the latched position by means of the
locking-bar fitting in such a way that it is moved from an open position into a locked
position and then back into the open position.
A functionally particularly safe and simple variant of this method is characterized in that
the locking pin comes to rest on a support surface (of the latching-hook section) when
latching on the latching-hook section when closing or locking the casement, wherein it is
not fully extended out of the guide housing and that it is then moved laterally
downwards from the support surface when the locking-bar fitting is moved into its
locking position, so that it extends further out of the guide housing and that when the
locking-bar fitting is moved back into its opening position, the locking pin is moved
against an edge of the support surface and then moves the latching-hook section into a
release position so that the casement can be opened again.
In the following, the invention is described in more detail with reference to the drawing
4

by means of exemplary embodiments. The invention is not limited to these exemplary
embodiments, but can also be realized in other ways according to the wording or in
other equivalent ways, wherein:
Fig. 1: shows a spatial view of a window;
Fig. 2: shows in Fig. 2a) a view of a section of an outer-frame profile
perpendicular to the main direction of extension, on which a locking-pin
assembly of a catch device is arranged, and a view of an outer-frame
profile perpendicular to the main direction of extension, on which a latch
assembly of the catch device is arranged, in an open position of the
casement; and in Fig. 2b) the elements of Fig. 2a), wherein the casement
is in a closed position and wherein the catch device is in an arresting
position/locking position and in Fig. 2c) a perspective view of the
arrangement of Fig. 2b), wherein the outer-frame profile has been
hidden;
Fig. 3: shows in Fig. 3a) to Fig. 3c) different views of a locking-pin assembly of
the catch device from Fig. 2a) to Fig. 2c);
Fig. 4: shows in Fig. 4a) a perspective view of a latch assembly of the catch
device of Fig. 2a) to 2c), in Fig. 4b) a blast view of the catch device of
Fig. 4a) and in Fig. 4c) a partially transparent view of the catch device of
Fig. 4a);
Fig. 5: shows in Fig. 5a) to Fig. 5d) in each case plan views of the catch device
of Fig. 4a), wherein the latching hook is partially located in various
operating positions and wherein a position of a locking pin in these
operating positions is indicated and in 5e) a position of the latching-hook
section which it assumes when the locking bar is used in the opposite
direction of movement as an alternative to 8d);
Fig. 6: shows in Fig. 6a) a view of a section of an outer-frame profile
perpendicular to the main direction of extension, on which a locking-pin
assembly of a second variant of a catch device is arranged, and a view of
an outer-frame profile perpendicular to the main direction of extension,
on which a latch assembly of the catch device is arranged, in an open
5

position of the casement; and in Fig. 6b) the elements of Fig. 6a),
wherein the casement is in a closed position and wherein the catch
device is in an arresting position/latching position and in Fig. 6c) a
perspective view of the arrangement of Fig. 6b), wherein the outer-frame
profile has been hidden;
Fig. 7: shows in Fig. 7a) a perspective view of a latch assembly of the catch
device from Fig. 6a) to Fig. 6c), in Fig. 7b) an exploded view of the catch
device from Fig. 4a) and in Fig. 7c) a partially transparent view of the
catch device from Fig. 7a);
Fig. 8: shows in Fig. 8a) to Fig. 8d) in each case plan views of the catch device
of Fig. 7a), wherein the latching-hook section is partially located in
different operating positions and wherein a position of a locking pin in
these operating positions is indicated, and in e) a position of the latchinghook section which it assumes when the locking bar is used in the
opposite direction of movement as an alternative to 8d).
Various exemplary embodiments are described in the following description of the
figures. The individual features of these exemplary embodiments can advantageously
be used in combination with the respective further features of the exemplary
embodiments. However, they can also be combined with other exemplary embodiments
shown or not shown and are also suitable in each case as advantageous designs of the
objects described in individual or several of the main and sub-claims. In the following,
the term "window" may be replaced in each case by "door".
Fig. 1 shows a window. The window has a circumferential outer frame 1. This is
composed of several profiles – outer-frame profiles 10 - to form a frame shape, in
particular a rectangular shape (on a door, the lower of the outer-frame profiles can be
designed as a threshold).
A casement movable relative to the outer frame 1 is arranged on the outer frame 1. The
casement has a preferably circumferentially closed casement frame 2 and a panel
element 3, such as glazing, which is inserted into the casement frame 2 and held by it.
The panel element 3 extends parallel or in a plane that is spanned by the X and Y axes
of the coordinate system in Fig. 1. The casement frame 2 is composed of several
casement-frame profiles 20 to form a frame shape, in particular a rectangular shape.
6

The outer-frame profiles 10 and/or the casement-frame profiles 20 can be made from
any material, for example from a plastic or a metal or from a composite of such
materials.
The casement can be moved from a closed position manually with a handle (or
motorized via a drive) into an open position and from this back into a closed position.
For this purpose, it is rotatably mounted on the outer frame 1 by means of one or more
pivot fittings. The axis of rotation is preferably a vertical axis (in relation to the
installation position of the window in a building). The pivot fittings can also allow further
movements (such as tilting movements about a horizontal axis of rotation, not shown).
However, this is merely an optional design in the context of the present invention. For
the purposes of this document, the term "turning" therefore also includes "tilting" or
"pivoting" about a horizontal axis.
In the closed position, the casement is locked by means of a locking-bar fitting 4, which
has one or more locking bars 41 (see e.g. Fig. 2c, which shows one of the locking bars
in sections) and with the aid of corresponding locking elements, which are formed on
the casement frame 2 - on the locking bar or bars 41 - and which are formed on the
outer frame 1. Reference is made to DE 10 2013 100 308 A1 as an example of the
basic structure of locking-bar fittings.
The locking elements (not shown) can be designed in various ways, for example as
locking pins or locking rollers, which are provided on the one or more locking bars 41,
which are arranged on the casement frame 2 so as to be movable relative thereto and
which are preferably movable by means of the handle or by means of the motorized
drive, in particular linearly movable along the associated outer-frame profiles on which
they are respectively arranged. Corner deflections can be provided in corners, which
couple the locking bars provided along the outer-frame profiles.
In order to lock the casement to the outer frame 1, the one or more locking bars 41 are
preferably moved by turning a handle or another drive into a position in which the
locking elements engage behind corresponding abutments on the outer frame 1 to lock
them. This position is called the "locking position" of the locking-bar fitting. To open the
casement, the locking-bar fitting 4 or its locking bars 41 are moved accordingly into a
second position in which they do not engage behind the abutments. This position is
called the open position of the locking-bar fitting 4. In this position, the casement can
then be opened by turning it away from the outer frame 1.
7

The above structure has been well known to the person skilled in the art for a long time
and does not require a more detailed description. By way of example only, reference is
made to DE 10 2013 100 308 A1, which discloses such a structure.
If the locking-bar fitting is in the open position and the casement has been turned to an
open position, it is possible that the casement may open and close repeatedly, e.g. due
to strong winds. This is avoided here.
This is achieved by an automatic latch catch - hereinafter also referred to as catch
device 5, which holds the casement in the closed position of the casement after a slam
without the locking-bar fitting 4 having been or being moved into its locking position.
The catch device 5 has corresponding devices on the casement frame 2 and on the
outer frame 1. A locking-pin assembly 51 of the catch device 5 is formed on the
casement frame 2 and a latch assembly 52 of the catch device 5 is formed on the outer
frame 1 (see Fig. 2a and b).
In Fig. 2a, the locking-bar fitting has been moved to an open position, i.e. the other
locking elements (not shown here) on the locking bar(s) do not engage behind the
abutments provided on the frame. Therefore, the casement can or could be moved into
an open position. However, it can also be moved back into a closed position without
moving the locking-bar fitting and could possibly open and close in a storm, for
example. This is prevented by the catch device 5. However, it is not a mandatory task of
the latch catch or the catch device 5 to create a rain and airtight seal.
The catch device 5 is preferably arranged on the window opposite the handle of the
casement-frame/outer-frame profiles 10, 20, which are vertical in the usual installation
position. However, this is not mandatory. It could also be formed on horizontal outerframe and casement-frame profiles (not shown here). In this case, the locking bars 41
and the locking elements on the casement frame 2 move in the Y direction and against
the direction. When opening and closing, the casement moves quasi parallel to the Z
direction at the beginning and towards the end of its movement.
The locking-pin assembly 51 has a guide housing 510. This is fixed to the locking bar 41
so that the movements of the locking-pin assembly 51 can or do follow the locking bar
(here, for example, in the Y direction - perpendicular to the image plane of Fig. 2a). The
guide housing 510 can have an (elongated) shape for this purpose, which allows it to be
8

inserted into the locking bar 41. It can be latched to this, for example (not shown in
detail here).
A driven, preferably spring-loaded, locking pin 511 is movably guided on the guide
housing 501 perpendicular (here the Y-direction) to the sliding direction of the locking
bar (here in the closed position of the casement, i.e. in and against the X-direction). It
protrudes with a free end from the guide housing 510. A force accumulator, a spring
512, which can be a coil spring, for example, acts on it in the guide housing 510. The
locking pin 511 can thus be pressed a little way into the guide housing 510 and
automatically moved back into a more extended position by the drive, in particular by
the spring 512 acting on it. When the locking pin is described below, such a driven or
spring-loaded locking pin is meant.
According to a preferred design, the locking-pin assembly 51 can be inserted into a hole
in the locking bar during fitting assembly, like a locking roller. The spring 512 presses
the locking pin 511 outwards. It can preferably be pressed completely into the guide
housing 510 against the spring. The locking-pin assembly 51 moves with the locking bar
41, which can be moved via the window handle, for example. The guide housing 510
can have a central opening, which is closed by a plug 513 after insertion of the spring
512 and the locking pin 511. The term guide housing 510 should not be defined too
narrowly. It also includes a base element that is not closed but supports and guides the
movable spring-loaded locking pin 511.
The locking pin 511 thus protrudes spring-loaded from the one guide housing 510 by a
distance S and can be repeatedly pushed from this position into the guide housing 510
by the distance S or a part of the distance S by pressing on its free end (see, for
example, Fig. 3b).
The corresponding latch assembly 52 is formed on the parallel outer-frame profile 1
corresponding to the casement-frame profile 20. It has a latching-hook section 521 or a
latching-hook section part. It can also have a base 522. The latching-hook section 521 -
in the sense of a latching-hook section part with several functions - is preferably
arranged movably on the base 522. The base 522 can be attached to the outer-frame
profile 10, for example screwed.
The latching-hook section 521 can in particular be driven, preferably spring-loaded
movably arranged on the base 522. A drive, in particular a spring 523, thus acts on the
9

latching-hook section 521 in order to move it on the base 522 into a first defined
position, in particular to move it back.
The latching-hook section 521 can, for example, be pivotably arranged on the base 522.
Such an exemplary embodiment is shown, for example, in Figs. 2 and 3. However, the
latching-hook section 521 can also be displaceably arranged on the base 522. Such an
exemplary embodiment is shown in Figs. 6 to 8.
The latching-hook section 521 can be moved back and forth at least between a latching
position and a release position. It can be moved into the release position by the locking
pin 511 and back into the latching position by the drive means, in particular the spring
523.
The casement can be opened in the release position. In the latching position, on the
other hand, it is held on the outer frame 1 by the catch device 5 if the casement has
fallen shut or been closed although the handle has not yet been turned to "locked".
It is preferred that the latching-hook section 521 is automatically urged or moved into
the latching position by the action of the spring 523, which may be a torsion spring, for
example, when it has left the latching position in which the locking pin 511 can be
latched to it.
The latching-hook section 521 can, for example, be arranged on the base 522 so as to
pivot about an axis of rotation perpendicular to the sliding direction Y of the locking bar
41 of the adjacent outer-frame profile 10. However, it can also - preferably parallel to the
displacement direction of the locking bar 41 - be displaceably arranged on the outerframe profile. The latching-hook section 521 comprises the actual latching lug/latching
edge 5214 and a support surface 5212, on which the locking pin can rest in the latched
state. The latter has a lateral edge 5213. The support surface 5212 is located above the
base. The locking pin 511 can rest on the support surface 5212 in the latched position
of the catch device. It is then partially extended. However, it can also rest on the base
522 (or optionally another "lower level"). It is then extended further out of the guide
housing 510.
The spring 523 can, for example, be designed as a torsion spring. However, the spring
523 can also be designed as a coil spring or the like, for example.
10

This arrangement works as follows:
In a state in which the casement 2 has been opened, the latching lug 5214 of the
latching-hook section 521 is already in a kind of preparatory "waiting" manner in the
"latching position" (Figs. 2a, 2c, 5a). This corresponds to the locking-bar fitting and
optionally its handle being in the "open position". However, the locking pin 511 has not
yet been latched onto it.
If the casement is now closed in the Z-direction - whether by manual closing or, for
example, by the impact of wind - the locking pin 511 is moved with the casement
towards the latching hook 511 (Fig. 2a). The latching lug 5214 can have a run-up ramp
5211, which is designed in such a way that the locking pin 511 is pressed further and
further into the guide housing 510 when the casement is closed further, until the free
end of the latching lug 5214 is crossed, so that the spring-loaded locking pin 511 can
extend further again. In this position, the locking pin 511 is latched "behind" the latchinghook section 521 in a latching position of the catch device 5. It rests on a support
surface 5212 of the latching-hook section 521, wherein it is not fully extended out of the
guide housing 510 (Fig. 5b). The support surface 5212 can have lateral ramps, so that
the locking pin 511 is additionally secured in position. The run-up ramp 5211 can also
have an optional braking effect.
In the latching position, in which it has crossed the free end of the latching-hook section
521, the locking pin 511 can rest on the support surface 5212. The height of this support
surface 5212 (see also Fig. 5a) is such that the locking pin 511 rests on it, but is not yet
fully extended from the guide housing 510.
The locking pin 511 is now in a position in which it cannot be released from the latched
position simply by moving the casement. Instead, it is necessary to manually release
the catch device 5 from its latched position. This still corresponds to a handle position of
the casement in the open position.
The catch device can be released from its latched position in a simple manner by
moving the locking-bar fitting 4 into its locked position and from there back into the open
position. This is because if the locking bar 41 is moved linearly, in this case in the +Y
direction or -Y direction, the locking pin 511 is moved laterally past the latching lug 5214
and moved down from the support surface 5212, so that the latch between the locking
pin 511 and the latching-hook section 521 is released (Fig. 5c).
11

This corresponds to the locking fitting 4 being in the locked position. The casement 2 is
therefore locked to the outer frame 1. However, this locking is now achieved by the
other locking elements such as the other locking pins or locking rollers or the like of the
window, which engage behind the corresponding fixed locking elements such as the
abutments on the outer frame 1. In contrast, the locking pin 511 is in a position next to
the latching-hook section 521 in which it is not latched to the latching-hook section 521
(Fig. 5c).
If the casement is now to be opened again, the locking elements, which engage behind
the corresponding abutments on the outer frame 10, are moved out of this rear grip by
moving the locking bar 41 or the locking-bar fitting into the open position.
In order for the window or its casement to be opened again, the locking pin 511 must
not be moved back into the latching position in which it engages behind the latchinghook section 521. This is because the casement could then not be opened.
To solve this problem, the latching-hook section 521 and the locking pin 511 are
matched to one another in such a way that the locking pin, which has been extended
further after leaving the support surface 5212 after the bolt rod fitting 4 has been moved
into the locking position, when the locking-bar fitting is moved back and thus also when
the locking bar 4, on which it is seated, is moved back into the open position, initially
strikes laterally against the edge 5213 of the latching-hook section 521, wherein it then
moves the latching-hook section 521 into a position, here into a release position, which
here is a pivot position Fig. 5d). As the latching-hook section has now been moved "to
the side", so to speak, the casement can be opened, as the latching lug 5214 is not in
the way of the locking pin (here in the Z direction).
This can be briefly summarized in other words. If the locking pin 511 is moved in the +Y
direction or -Y direction during the movement of the locking bar 41 when the locking-bar
fitting is moved into its locking position, the locking pin 511 is moved down laterally from
the support surface 5212 so that it can extend further out of the guide housing 510 and
come to rest, for example, on the base 522. When this locking bar 41 is moved back,
when the locking-bar fitting 4 is moved back into its opening position, the locking pin
511 moves against an edge 523 of the support surface 522 and moves the latchinghook section 521 into a release position (Fig. 5d), so that the casement can be opened
again.
12

In this state, the spring 523, in particular the torsion spring, which is tensioned by the
movement - in particular pivoting - of the latching-hook section 521, can then relax. The
spring 523 then moves the latching-hook section 521 back into its latching position (Fig.
5a), so that the catch device 5 is reactivated or moved back into the initial position of
Fig. 5a, so that it can be used again.
It may be provided that the latching position is defined by a stop of the spring 523 or the
latching-hook section 521 at the base 522.
The movement of the latching-hook section 521 into the release position can also be
limited by a lateral stop 5221, for example on the base 522. Two end stops 5221, 5221
may be provided in opposite directions, in particular pivot directions. In addition, it may
be provided that the latching-hook section 521 can be deflected in two directions of
rotation starting from the latching positions. For this purpose, the spring, here the
torsion spring 523, can also be designed in such a way that it can turn the latching-hook
section 521 from both end positions at the end stops 5221, 5221 back into the then
middle latching position (Fig. 4e). In this way, the catch device 5, which can be actuated
from two directions, can be used or installed independently of the direction of movement
of the locking bar 4 when locking or opening a window.
In the embodiment described above, as in other embodiments of the invention, leaving
the support surface 5212 behind the latching lug 5214 by the locking pin 511 is
positively controlled. Preferably, the latching lug 511 runs onto the stop after
approximately half the pivoting movement (locking bar stroke) in the direction of the
locking position, for example after 10 mm. The locking pin 511 must therefore now leave
the area of the latching lug 5214 during further actuation of the locking-bar fitting 4 by
the handle in the direction of the locking position (which is reached after 20 mm, for
example), even if it would have pulled it along up to this point due to friction.
Alternatively, the functionality described above can also be realized on a catch device
15, which has a carriage-like latching-hook section 1521 arranged displaceably on the
base 1522. On the casement-frame side, for example, the locking-pin assembly 51 of
Figs. 3a) to 3c) can again be provided on the casement-frame profile 20.
The latch assembly 152 is again arranged on the outer-frame side. Its fixed lower part
or base 1522 is screwed to the outer frame 1 or an outer-frame profile 10. It has a
latching-hook section 1522 that can be moved on guides in the longitudinal direction of
13

the profile, which is designed as a linearly movable carriage and in turn contains a
latching lug 15214. This carriage is preferably held centrally on the base 1522 by means
of at least one spring 1523, in this case by means of two compression springs 1523, but
can be moved against the spring force parallel to the base 1522.
The casement can be moved in the direction of movement of the locking bar of the
adjacent outer-frame profile.
The latch assembly works as follows:
Initially, the locking-bar fitting is in the open position (handle position of the casement:
open). This is shown schematically in Fig. 8a. The casement has now been opened. If
the casement is now moved towards the outer frame 1 and pressed closed, the locking
pin 511 can snap behind the latching lug or behind the latching-hook section 1521 of the
latch assembly 152. To facilitate this movement, the latching lug or the latching-hook
section preferably again has a run-up ramp 15211, which promotes a deflection of the
locking pin 511 during the closing movement of the casement (Fig. 8b) and, optionally,
slows down the speed of movement of the casement. The locking pin 511 of the catch
device 15 is partially but not fully extended and now rests on the support surface 15212.
The casement is now fixed.
Now the locking-bar fitting 4 is moved into the locking position (handle position of the
casement: locked/closed). This is shown schematically in Fig. 8c. The casement is
locked by means of its standard locking elements such as locking rollers and bolt
pieces. In this position, the locking pin 511 of the catch device 15 has been moved
laterally behind the latching lug 15214 of the latch assembly 152 (e.g. in or against the
vertical Y-direction). In this way, it has crossed and thus left the support surface 5212 of
the latching-hook section 1521, which may be provided with further run-up ramps to
facilitate this movement. The locking pin 511 of the catch device 15 now rests on a
lower level or is extended further than on the support surface 15212. This may be a
lower support of the base or, as in this case, of the carriage-like latching-hook section
5212 itself.
The locking-bar fitting 4 is now moved back to the open position (handle position of the
casement: open). This is shown schematically in Fig. 8c. The locking-pin assembly 51
moves with the locking bar 41 towards the latching-hook section 1521 of the latch
assembly 152. However, the locking pin 511 cannot move back into the area of the
14

support surface 12512 behind the latching lug 15214, as this has no ramps on its outer
side, but is a vertical edge 15213. The carriage is therefore moved sideways on its
guide until the handle is fully open. When the locking-bar fitting 4 has been moved
completely into the open position, the locking pin 511 is still next to, but not behind, the
latching lug 15214. The casement can now be pushed open. The locking pin 511 leaves
the carriage-like latching-hook section 1521, which is then re-centered by its two
compression springs. The latching mechanism is thus reactivated.
This latch assembly is also preferably symmetrical. It can be used regardless of the
direction of movement of the locking bar, without the need for right and left parts.
Leaving the support surface 15212 behind the latching lug 15214 by the locking pin 511
is also positively controlled here: The carriage-like latching-hook section 1512 is already
at the movement limit stop of the carriage after approximately half a handle stroke
(locking bar stroke) in the direction of the locking position, e.g. after 10 mm. The locking
pin 511 must therefore now leave the support surface 15212 behind the latching lug
15214 when the handle is actuated further in the direction of the locking position (e.g.
after 20 mm), even if it had pulled the latching-hook section 1512 along up to this point.
15

List of reference signs
Outer frame 1
Outer-frame profile 10
Casement frame 2
Outer-frame profile 20
Panel element 3
Locking-bar fitting 4
Locking bar 41
Catch device 5, 15
Locking-pin assembly 51
Guide housing 510
Locking pin 511
Spring 512
Plug 513
Latch assembly 52, 152
Latching-hook section 521, 1521
Run-up ramp 5211,15211
Support surface 5212, 15212
Edge 5213, 15213
Latching lug/edge 5214, 15214
Base 522, 1522
End stops 5221
Spring 523, 1523
16

WE CLAIM:
1. Window or door which has an outer frame (1) comprising a plurality of outer-frame
profiles (10) and a casement (2) which is arranged thereon so as to be rotatable
about a horizontal or vertical axis of rotation and is composed of a plurality of
outer-frame profiles (2), wherein a locking-bar fitting (4) having one or more
locking bars (10) is also formed on the casement frame, with which first locking
elements can be moved into a locking position for engaging behind corresponding
locking elements on the outer frame and back into an open position, characterized
in that a catch device (5, 15) is also provided, with which the casement can be
latched in a latching position on the outer frame (10) even when the locking-bar
arrangement (4) is in the open position and the casement is closed after opening,
wherein the catch device is designed in such a way that the catch device (5, 15) is
released from the latching position by means of the locking-bar fitting in such a
way that the latter is moved from an open position into a locked position and then
back into the open position.
2. Window or door according to claim 1, characterized in that the catch device (5, 15)
has a locking-pin assembly (51) arranged on the at least one movable locking
bar(s) of the casement frame with a preferably spring-loaded locking pin (511)
movable by a drive means and a latch assembly (52, 152) arranged on the outer
frame (1) with a base (511) and with a latching-hook section (521, 1521) with a
latching lug (5214, 15214), behind which the locking pin is latched in the latching
position.
3. Window or door according to claim 1 or 2, characterized in that the latching-hook
section (521, 1521) is movably arranged on the base (522, 1522) and in that the
base (522, 1522) is immovably fixed to one of the outer-frame profiles (10) of the
outer frame (1) and in that the latching-hook section (521, 1521) can be moved
back and forth on the base (522, 1522) between a release position and a latching
position.
4. Window or door according to claim 3, characterized in that the latching-hook
section (521, 1521) is arranged on the base (522, 1522) so as to be pivotably
movable.
5. Window or door according to claim 3, characterized in that the latching-hook
section (521, 1521) is displaceably arranged on the base (522, 1522).
17

6. Window or door according to one of the preceding claims, characterized in that the
latching-hook section (521, 1521) is movable on the base (522, 1522) into a
release position with the aid of the locking pin and in that the latching-hook section
can be moved back into the latching position by means of at least one drive means
acting on it, in particular at least by means of a spring (523, 1523) acting on it.
7. Window or door according to one of the preceding claims, characterized in that the
locking-pin assembly (51) has a guide housing (510) from which the locking pin
(511) projects, wherein the locking pin (511) can repeatedly be pushed from this
position into the guide housing (510) by a distance S by pressing on its free end.
8. Window or door according to one of the preceding claims, characterized in that the
latching-hook section (521) of the latch assembly (52, 152) has a support surface
(5212, 15212) on which the locking pin (511) rests in its latched state, i.e. in its
latched state on the latch assembly, wherein the support surface (5212, 15212) is
designed and arranged such that the locking pin (511) projects from the guide
housing (510) only part of the distance S.
9. Window or door according to one of the preceding claims, characterized in that,
after the locking-bar fitting has been moved into a locking position, the locking pin
(511) is extended further from the latched state than in the latched state in which it
rests on the support surface of the latching-hook section (521, 1521) and is
latched behind the latching lug, and in that, when the locking-bar fitting is moved
again from the locking position into the open position, the locking pin (511) moves
the latching-hook section (521, 1521) in such a way that the casement can be
opened again.
10. Window or door according to one of the preceding claims, characterized in that the
latch assembly is constructed symmetrically in such a way that it can be used
independently of the direction of movement of the corresponding locking bar (41)
of the casement.
11. Method for deactivating the catch device (5, 15) of a window or door according to
one of the preceding claims, with which, when the casement is in the closed
position and the catch device (5, 15) locks the casement to the outer frame, the
catch device (5, 15) is released from the latched position by means of the lockingbar fitting in such a way that it is moved from an open position into a locked
18

position and then back into the open position.
12. Method according to claim 11, characterized in that it comprises at least the
following steps:
a. the locking pin (511) is latched onto the latching-hook section (521, 1521)
when the casement shuts or is closed and comes to rest on a support
surface (5212, 15212) of the latching-hook section, wherein it is not fully
extended out of the guide housing (510),
b. the locking pin (511) is then moved laterally down from the support surface
(5212, 15212) when the locking-bar fitting is moved into its locking position,
so that it extends further out of the guide housing (510) and
c. the locking pin is then moved against an edge (5213, 15213) of the support
surface (15213, 15212) when the locking-bar fitting (4) is moved back into its
open position and then moves the latching-hook section (521, 1521) into a
release position so that the casement can be opened again.