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EP 1 310 617 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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04.07.2007 Bulletin 2007/27 |
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Date of filing: 13.11.2002 |
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International Patent Classification (IPC):
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Striker plate installation
Schliessblechanordnung
Gâche
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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Priority: |
13.11.2001 FI 20012196
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Date of publication of application: |
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14.05.2003 Bulletin 2003/20 |
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Proprietor: BJÖRKBODA LAS OY AB |
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SF-25860 Björkboda (FI) |
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Inventors: |
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- Lauren, Pekka
25900 Taalintehdas (FI)
- Paasonen, Simo
21110 Naantali (FI)
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Representative: Hanson, William Bennett et al |
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Bromhead Johnson
19 Buckingham Street London WC2N 6EF London WC2N 6EF (GB) |
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References cited: :
US-A- 2 042 024 US-A- 4 525 952 US-A- 6 112 471
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US-A- 3 241 873 US-A- 5 775 749
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The invention relates to a striking plate assembly in accordance with the preamble
of claim 1. A striking plate assembly in accordance with the preamble of claim 1 is
disclosed in
US-A-5,775,749.
[0002] Striking plates for door locks to be mounted on door frames of profiled structure,
such as door frames made of profiled metal or the like, differ from striking plates
to be mounted on wooden door frames in both construction and securing. Durability
and rigidity against attempted burglaries of various kinds are, however, always expected
of the striking plate. Therefore safety striking plates for door frames made of profiled
metal need to be manufactured of special steel, which raises the manufacturing costs
thereof.
[0003] An aim of the present invention is to provide a novel striking plate assembly for
door frames of profiled metal or alike, by which a more advantageous distribution
of the forces generated in a case of attempted burglary is achieved in the door frame.
In addition, an aim of the invention is to provide a striking plate assembly where
conventional materials, less expensive than special steels, can be used, but where
the requirements for the durability and rigidity of the construction are not, however,
compromised.
[0004] The invention provides a striking plate assembly in accordance with claim 1. Optional
features of the invention are defined in the other claims.
[0005] The striking plate assembly according to the invention comprises a striking plate
provided with an opening for a bolt, in which striking plate a bolt casing is arranged,
the bolt casing being adapted for location in the cut-out of a door frame. The bolt
casing comprises an extension section arranged to extend beyond the region of the
cut-out in the longitudinal direction of the frame, when the striking plate assembly
is already mounted in the frame. Additionally, a bolt casing end opposite to the section
extending beyond the cut-out in the frame, is shaped so as to allow the inserting
of the bolt casing through the cut-out in the frame.
[0006] Preferably, a space is left between the extension section and the striking plate.
Thus, the bolt casing extends also beyond the region of the opening in such a way
that a space for the frame is left between the bolt casing and the striking plate.
[0007] According to the invention, said extension section extending beyond the cut-out is
formed by parts of lateral walls of the bolt casing and is arranged to be supported
at least partly by the frame between said extension section and the striking plate
at least in a case of attempted burglary.
[0008] In addition and according to the invention, the assembly comprises a separate support
member on the opposite side from the aforementioned extension section in respect of
the opening, which support member is arranged to be mounted inside the door frame
and secured to the striking plate so that the wall of the frame is located between
the support member and the striking plate. The support member is preferably a support
plate. By these structural arrangements some of the forces exerted on the striking
plate can be transmitted to the profiled door frame, which improves the durability
and rigidity of the striking plate.
[0009] The rigidity of the construction can be further improved by locating the support
plate partly inside the bolt casing, whereby the support plate supports the bolt casing
in the cross-direction of the striking plate.
[0010] Additionally, the support plate may be provided with a protrusion at its end facing
the opening and being supported by the striking plate. Thus the profiled door frame
arranged between the support plate and the striking plate is highly advantageous regarding
the transmission of forces.
[0011] Further, the support plate is preferably provided with a slot in the longitudinal
direction of the striking plate, through which a securing member, e.g. a combination
of a screw and a threaded sleeve, is adapted to be inserted in order to secure the
bolt casing to the striking plate. Due to the slot the same striking plate can be
used in conjunction with door lock bodies with various locking bar dimensions.
[0012] The surface of the bolt casing end opposite to the end extending beyond the cut-out
in the frame is shaped so as to allow the extracting as well as the inserting of the
bolt casing through the cut-out in the frame when being or detached from as well as
mounted in the door frame.
[0013] The perpendicular projection of the bolt casing onto the surface of the striking
plate may extend in the longitudinal direction of the striking plate over a distance
greater than the length of the cut-out in the frame in the direction of the frame.
Thus the bolt casing can, after being mounted in the frame, be arranged to extend
beyond the cut-out.
[0014] By means of the present invention conventional materials, made generally commercially
available, can be used as a material for the striking plate construction.
[0015] In the following, embodiments of invention are described by way of example with reference
to the attached drawings, in which
Figure 1 shows a perspective view of a striking plate construction according to an
embodiment of the invention;
Figure 2 shows an elevational and cross sectional view of the striking plate construction
according to Figure 1 mounted in a profiled door frame;
Figure 3 shows a cross sectional view taken on the line B-B of Figure 2;
Figure 4 shows a cross sectional view taken on the line A-A of Figure 2;
Figure 5 shows an elevational and cross sectional view of the striking plate construction
according to Figure 1 in its locking position mounted in a profiled door frame according
to a different embodiment; and
Figure 6 shows the assembly according to Figure 5 in a case of attempted burglary.
[0016] In the drawings the reference number 1 refers to a striking plate, which is provided
with an opening 1a for receiving a bolt 8 for a door lock 7. In conjunction with the
striking plate 1 there is a bolt casing 2, which is, when applying the present assembly,
inserted via a cut-out 3c in a door frame 3, inside the profiled structure of the
frame. In addition, the assembly comprises a support member, which is a support plate
4 in the embodiment shown in the Figures. The support plate 4 is secured to the striking
plate 1 and to a profiled frame section 3b by means of a screw 5 and a combination
6 of a screw and a threaded sleeve. The assembly is mounted in a door frame 3, 3a,
3b made of profiled metal or the like so that the profiled frame section 3b of the
door frame (shown in the Figure above the cut-out 3c), remains partly between the
striking plate 1 and the support plate 4.
[0017] The bolt casing 2 is U-shaped and it extends both below and above the opening 1a.
The bolt casing 2 is also adapted to extend beyond the region of the cut-out 3c in
the longitudinal direction of the frame, after the assembly has been mounted in the
profiled frame. The bolt casing 2 extending below the bolt opening is shaped so that
some space is left for the frame section 3a between the bolt casing 2 and the striking
plate 1 and thus the bolt casing extends beyond (below, as shown in the Figures) the
region of the cut-out 3c so that the frame section 3a can extend between the bolt
casing and the striking plate.
[0018] A section 2a of the bolt casing 2 is thus supported by the profiled door frame section
3a, in the Figures below the cut-out 3c in the profiled frame, whereby the forces
exerted on the lower part of the striking plate are partly transmitted to the door
frame. This is the case especially at burglary attempts, which are described below
with reference to Figures 5 and 6.
[0019] The support plate 4 above the opening 1a and the cut-out 3c in the profiled frame
is located partly inside the bolt casing 2 thus supporting it in the cross-direction
of the striking plate 1. In Figure 4 the clearance between the bolt casing and the
support plate exists so as to facilitate the installation and it may be somewhat exaggerated
in the Figure for the sake of clarity. However, especially in the case of attempted
burglaries, these kinds of clearances have no practical significance. The support
plate 4 is provided with a protrusion 4a, which is in the upper part of the bolt opening
1a and is supported directly by the striking plate 1. By the impact of the support
plate 4 the forces exerted on the upper part of the striking plate 1 are transmitted
also to the profiled door frame section 3b above the bolt opening 1a, not only through
the screwed joint 5. Thus the striking plate according to the invention is essentially
more durable than a striking plate secured to the door frame only by means of screw
fastening.
[0020] The support plate 4 is provided with a slot 4b in the longitudinal direction of the
striking plate 1, through which the combination 6 of a screw and a threaded sleeve
is arranged to be inserted in order to secure the bolt casing 2 to the striking plate
1. The threaded sleeve 6a is shaped so as to transmit force over to the support plate
4 as well as to the bolt casing 2 to further enforce the structure. The slot 4b makes
it possible to use the same striking plate in conjunction with door lock bodies with
various spindle distances. Figure 2 shows an assembly designed for a shorter spindle
distance whereas Figures 5 and 6 show a case where the bar distance is longer. Thus
the screw 5 can be fixed in the lower screw hole in the support plate, as shown in
Figures 5 and 6. In this connection the spindle distance refers to the distance between
the front plate, i.e. the plate in conjunction with the lock housing with one or more
openings for the bolt, and the spindle or spindle opening of the lock. The spindle
distance can be increased e.g. by arranging a special additional spacer under, or
in conjunction with, the front plate.
[0021] Figure 5 depicts the striking plate assembly according to an embodiment the invention
applied in conjunction with a hook bolt lock 7, to which the invention is particularly
applicable. E.g. a sliding door is an appropriate application. In the locking position
the bolt 8 of the lock 7 extends through the bolt opening 1a inside of the striking
plate assembly and the bolt casing 2. As is shown in the Figure, the support plate
4 is now secured by a screw 5 to the lower screw hole in the support plate, whereby
the support plate 4 is located farther away from the bolt opening 1a than in the case
shown in Figure 2. Thus a lock 7 provided with a longer spindle distance can also
be used. When the assembly is in the locking position according to Figure 5 exposed
to an attempted burglary, it creates a traction force in the striking plate 1 in the
longitudinal direction of the bolt 8. This situation is shown in Figure 6.
[0022] Figure 6 is somewhat exaggerated in order to clarify the situation. The force transmitted
by the hook bolt 8 to the striking plate 1 makes it bend and move with respect to
the profiled frame 3. In accordance with the invention the loading of the screw fastening
5, in the Figure located above the cut-out 3c, can be reduced so that some of the
force is transmitted to the profiled door frame 3b, in the Figure above the cut-out
3c, which frame is pressed between the support plate 4 and the striking plate 1. In
the same way, after a certain dislocation, the section 2a of the bolt casing extending
in the Figure below the cut-out 3c in the profiled frame is supported by the profiled
door frame section 3a, whereby the forces exerted on the lower part of the striking
plate are partly transmitted directly to the door frame. Thus the loading of the screwed
joint 5a, in the Figure below the cut-out 3c, is reduced.
[0023] The invention is not limited to the above-described application, but several other
modifications are conceivable within the scope of the appended claims.
1. A striking plate assembly for a lock to be secured to a door frame (3; 3a; 3b) comprising
a striking plate (1) provided with an opening (1a) for a bolt, in which striking plate
(1) a bolt casing (2) to be mounted in the frame (3; 3a, 3b) through a cut-out (3c)
in the frame (3; 3a; 3b) is arranged, which bolt casing (2) comprises an extension
section (2a), which, when the striking plate assembly has already been mounted in
the frame (3; 3a; 3b), is arranged to extend beyond the region of the cut-out (3c)
in the longitudinal direction of the frame (3; 3a; 3b) whereby the assembly is mountable
on the frame by using screws characterised in that a bolt casing end, opposite to the extension section (2a) arranged to extend beyond
the cut-out (3c) in the frame, is shaped so as to allow the inserting of the bolt
casing (2) through the cut-out in the frame (3; 3a; 3b), the assembly further comprising
a separate support member (4) that is attachable to the rest of the assembly in such
a way that it extends in the longitudinal direction of the striking plate (1) at the
bolt casing end opposite said extension section (2a) and whereby the extension section
(2a) is formed by parts of lateral walls of the bolt casing (2) and is at least partly
arranged to be supported by the frame (3a) remaining between said extension section
(2a) and the striking plate (1) at least in a case of attempted burglary, and that
the support member (4) is arranged to be mounted inside the frame (3b) and secured
to the striking plate (1) so that the wall of the frame (3b) is located between the
support member (4) and the striking plate (1).
2. A striking plate assembly according to claim 1, characterised in that a space is left between the extension section (2a) and the striking plate (1), into
which space the frame part (3a) next to the cut-out (3c) can be inserted in such a
way that space is left between the extension section (2a) and the frame part (3a).
3. A striking plate assembly according to claim 2, characterised in that the support member (4) is located partly inside the bolt casing (2) supporting it
in the cross direction of the striking plate (1).
4. A striking plate assembly according to claim 1, 2 or 3, characterised in that the support member (4) is a support plate which is provided with a protrusion (4a)
at its end facing the opening (1a), which protrusion is supported by the striking
plate (1).
5. A striking plate assembly according to any of the preceding claims, characterised in that the support member (4) is a support plate provided with a slot (4b) in the longitudinal
direction of the striking plate (1), through which slot a securing means, e.g. a combination
of a screw and a threaded sleeve (6), is adapted to be inserted in order to secure
the bolt casing (2) to the striking plate (1).
6. A striking plate assembly according to any of the preceding claims, characterised in that the perpendicular projection of the bolt casing (2) onto the surface of the striking
plate (1) is arranged to extend in the longitudinal direction of the striking plate
(1) over a distance, which is greater than the length of the cut-out (3c) in the frame
(3) in the direction of the frame (3; 3a; 3b).
7. Use of the striking plate assembly according to any of the preceding claims in conjunction
with a hook bolt lock (7).
1. Schließblechanordnung für ein an einem Türrahmen (3; 3a; 3b) zu befestigendes Schloss,
die ein Schließblech (1) mit einer Öffnung (1a) für einen Riegel aufweist, wobei im
Schließblech (1) ein Riegelgehäuse (2) angeordnet ist, das durch einen Ausschnitt
(3c) im Rahmen (3; 3a; 3b) in diesem zu montieren ist, wobei das Riegelgehäuse (2)
einen Erstreckungsabschnitt (2a) aufweist, der so angeordnet ist, dass er sich über
den Bereich des Ausschnitts (3c) in der Längsrichtung des Rahmens (3; 3a; 3b) hinaus
erstreckt, wenn die Schließblechanordnung bereits im Rahmen (3; 3a; 3b) montiert ist,
wobei die Anordnung unter Verwendung von Schrauben am Rahmen montiert werden kann,
dadurch gekennzeichnet, dass ein Riegelgehäuseende gegenüber dem Erstreckungsabschnitt (2a), der so angeordnet
ist, dass er sich über den Ausschnitt (3c) im Rahmen hinaus erstreckt, so geformt
ist, dass das Riegelgehäuse (2) durch den Ausschnitt im Rahmen (3; 3a; 3b) eingeführt
werden kann, wobei die Anordnung ferner ein getrenntes Stützelement (4) aufweist,
das so an der restlichen Anordnung angebracht werden kann, dass es sich am Riegelgehäuseende
gegenüber dem Erstreckungsabschnitt (2a) in der Längsrichtung des Schließblechs (1)
erstreckt, und wobei der Erstreckungsabschnitt (2a) durch Teile von Seitenwänden des
Riegelgehäuses (2) gebildet und mindestens teilweise so angeordnet ist, dass er dadurch
gestützt wird, dass der Rahmen (3a) mindestens im Fall eines Einbruchversuchs zwischen
dem Erstreckungsabschnitt (2a) und dem Schließblech (1) bleibt, und dass das Stützelement
(4) so angeordnet ist, dass es im Rahmen (3b) montiert und am Schließblech (1) befestigt
wird, so dass sich die Wand des Rahmens (3b) zwischen dem Stützelement (4) und dem
Schließblech (1) befindet.
2. Schließblechanordnung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem Erstreckungsabschnitt (2a) und dem Schließblech (1) ein Raum freigelassen
wird, in den der Rahmenteil (3a) neben dem Ausschnitt (3c) so eingeführt werden kann,
dass zwischen dem Erstreckungsabschnitt (2a) und dem Rahmenteil (3a) Raum freigelassen
wird.
3. Schließblechanordnung nach Anspruch 2, dadurch gekennzeichnet, dass das Stützelement (4) teilweise in dem Riegelgehäuse (2) angeordnet ist und es in
der Querrichtung des Schließblechs (1) stützt.
4. Schließblechanordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass es sich bei dem Stützelement (4) um eine Stützplatte handelt, die an ihrem der Öffnung
(1a) gegenüberliegenden Ende mit einem Vorsprung (4a) versehen ist, der von dem Schließblech
(1) gestützt wird.
5. Schließblechanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich bei dem Stützelement (4) um eine Stützplatte handelt, die in der Längsrichtung
des Schließblechs (1) mit einem Schlitz (4b) versehen ist, durch den ein Befestigungsmittel,
z. B. eine Kombination aus einer Schraube und einer Gewindehülse (6), eingeführt werden
kann, um das Riegelgehäuse (2) am Schließblech (1) zu befestigen.
6. Schließblechanordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die senkrechte Auskragung des Riegelgehäuses (2) auf die Fläche des Schließblechs
(1) so angeordnet ist, dass sie sich über eine Strecke in der Längsrichtung des Schließblechs
(1) erstreckt, die größer ist als die Länge des Ausschnitts (3c) im Rahmen (3) in
der Richtung des Rahmens (3; 3a; 3b).
7. Verwendung der Schließblechanordnung nach einem der vorhergehenden Ansprüche in Verbindung
mit einem Hakenriegelschloss (7).
1. Ensemble de gâche pour serrure destiné à être fixé à un bâti (3 ; 3a ; 3b) de porte,
comportant une gâche (1) pourvue d'une ouverture (1a) pour un pêne, ladite gâche (1)
comprenant un boîtier (2) de pêne prévu pour être monté dans le bâti (3 ; 3a ; 3b)
à travers une découpe (3c) pratiquée dans le bâti (3 ; 3a; 3b), ledit boîtier (2)
de pêne comporte une section (2a) de prolongement qui, lorsque l'ensemble de gâche
a déjà été monté dans le bâti (3 ; 3a ; 3b), est agencée pour se prolonger au-delà
de la région de la découpe (3c) dans la direction longitudinale du bâti (3 ; 3a ;
3b), l'ensemble pouvant ainsi être monté sur le bâti à l'aide de vis, caractérisé en ce qu'une extrémité du boîtier de pêne, opposée à la section (2a) de prolongement agencée
pour se prolonger au-delà de la région de la découpe (3c) du bâti, présente une forme
permettant l'insertion du boîtier (2) de pêne à travers la découpe du bâti (3 ; 3a
; 3b), l'ensemble comportant en outre un élément (4) de soutien séparé qui peut être
fixé au reste de l'ensemble de telle façon qu'il s'étende dans la direction longitudinale
de la gâche (1) au niveau de l'extrémité du boîtier de pêne opposée à ladite section
(2a) de prolongement, la section (2a) de prolongement étant ainsi formée par des parties
de parois latérales du boîtier (2) de pêne et étant au moins partiellement agencée
de façon à être soutenue par le bâti (3a) restant entre ladite section (2a) de prolongement
et la gâche (1) au moins dans le cas d'une tentative de cambriolage, et en ce que l'élément (4) de soutien est agencé de façon à être monté à l'intérieur du bâti (3b)
et fixé à la gâche (1) de telle sorte que la paroi du bâti (3b) soit située entre
l'élément (4) de soutien et la gâche (1).
2. Ensemble de gâche selon la revendication 1, caractérisé en ce qu'un espace est ménagé entre la section (2a) de prolongement et la gâche (1), espace
dans lequel la partie (3a) du bâti voisine de la découpe (3c) peut être insérée de
telle façon qu'un espace soit ménagé entre la section (2a) de prolongement et la partie
(3a) du bâti.
3. Ensemble de gâche selon la revendication 2, caractérisé en ce que l'élément (4) de soutien est situé partiellement à l'intérieur du boîtier (2) de
pêne le soutenant dans la direction transversale de la gâche (1).
4. Ensemble de gâche selon la revendication 1, 2 ou 3, caractérisé en ce que l'élément (4) de soutien est une plaque de soutien pourvue d'une protubérance (4a)
à son extrémité faisant face à l'ouverture (1a), ladite protubérance étant soutenue
par la gâche (1).
5. Ensemble de gâche selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément (4) de soutien est une plaque de soutien pourvue d'une fente (4b) dans
la direction longitudinale de la gâche (1), fente à travers laquelle un moyen de fixation,
par ex. une combinaison de vis et de manchon (6) taraudé, est adapté pour être inséré
afin de fixer le boîtier (2) de pêne à la gâche (1).
6. Ensemble de gâche selon l'une quelconque des revendications précédentes, caractérisé en ce que la saillie perpendiculaire du boîtier (2) de pêne sur la surface de la gâche (1)
est agencée de façon à s'étendre dans la direction longitudinale de la gâche (1) sur
une distance supérieure à la longueur de la découpe (3c) dans le bâti (3) dans la
direction du bâti (3 ; 3a ; 3b).
7. Utilisation de l'ensemble de gâche selon l'une quelconque des revendications précédentes
en conjonction avec une serrure (7) à pêne en crochet.
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description