DE20118906U1 - Locking and securing device for a wing of a lifting and sliding door and / or a lifting and sliding window, connecting rod fitting for a lifting and sliding door and / or a lifting and sliding window and lifting and sliding door or window with such a locking and safety device - Google Patents

Abstract

A locking mechanism blocks the movement of a sliding door, or a door which opens by raising and lowering. The lock mechanism has one bolt which is mounted between the top (12) of the door (3) and the frame above, and a second bolt which operates between the side (13) of the door (3) and the adjacent frame.

Description

PATENT ATTORNEYS

Dipl.-Ing. A. Wasmeier

Dipl.-Ing. H. Graf

Authorized before the European Patent Office + Trade Mark Office · Professional Representatives before the European Patent Office + Trade Mark Office

Patent Attorneys PO Box 10 08 26 93008 Regensburg

German Patent
and Trademark Office
Zweibrückenstr. 12

80297 Munich

D-93008 REGENSBURG P.O. BOX 10 08 26

D-93055 REGENSBURG GREFLINGERSTRASSE 7

phone

(0941)79 20 85 (0941)79 20 86 (0941)79 5106

fax
E-mail:
wasmeier-graf@t-online.de

Your Reference Your Ref.

Your Message Your Letter

Our sign Our Ref.

G/g 20,397

Date

19.11.2001 gr-ra

Applicant:

Gretsch-Unitas GmbH Building fittings Johann-Maus-Str. 71254 Ditzingen

Title:

Locking and securing device for a leaf of a lifting and sliding door and/or a lifting and sliding window, espagnolette fitting for a lifting and sliding door and/or a lifting and sliding window and a lifting and sliding door or window with such a locking and securing device

Accounts: HypoVereinsbank (bank code 750 200 73) 5 839

Postgiro office Munich (bank code, 700 JOO 80J 893 69-80J.

· ·

Place of jurisdiction Regensburg

A20397.DOC 19.11.0109:48

Locking and securing device for a wing of a lifting and sliding door

and/or a lift and slide window, espagnolette fitting for a lift and

Sliding door and/or a lifting and sliding window and lifting and sliding door or - Windows with such a locking and security device

Building lifting and sliding doors or building lifting and sliding windows are known which can be operated manually using a handle or lifting handle provided on the respective sash and a drive rod fitting, in such a way that the respective sash is lowered in the fully closed state and is first raised to open or slide. In order to be able to move the sash from the lowered position to the raised position, a movement gap is required between the top of the sash or the sash frame and a surrounding blind or frame in the rebate area.

The aim of the innovation is to create a locking and securing device for a lifting and sliding door or for a lifting and sliding window which (locking and securing device) ensures very effective protection against unauthorized and violent lifting and opening of the door or window sash, despite a simple structural design.

To solve this problem, a locking and securing device is designed according to claim 1.

A drive rod fitting with such a locking and securing device and a lift and slide door or a lift and slide window is designed in accordance with protection claims 14 and 15 respectively.

The new locking and safety device offers very reliable protection against the door or window sash being lifted when locked, even in violent attempts requiring a high level of force. The locking elements of the locking and safety device are simple molded parts, for example in the form of a

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pivoting lever and an associated lifting wedge and are made of a sufficiently strong material, for example metal and/or a resilient plastic. In the locked state, the locking elements are at least partially
arranged one above the other so that they fill the movement gap completely or at least to such an extent that the lifting of the wing required to open the wing is not possible. Forces occurring during attempts to open the locking elements act on the one above the other exclusively as pressure forces,
in particular in such a way that the drive rod fitting or its
Drive rod, which interacts with at least one locking element, no forces in the
sense of opening the window or door lock.

Further developments of the innovation are the subject of the subclaims. The innovation is explained in more detail below using the figures for an embodiment which relates to a lift-sliding door. In principle, the
New locking device also for lift and slide windows.
The figures show:

Fig. 1 in simplified representation and in interior view of a lift-sliding door,

together with the new locking and safety device in the
non-blocking state;

Fig. 2 in simplified representation and in interior view of a lift-sliding door,

together with the new locking and safety device in the
blocking state;

Fig. 3 and 4 show an enlarged individual view of a locking element of the locking and securing device in the non-locking state (Figure 3) and in the
blocking state (Figure 4).

Fig. 5 is an enlarged view of a section along the line I-1 of Figure 3;

Fig. 6 - 8 the locking element of the locking and securing device in individual representation and in side view, bottom view and front view;

Fig. 9, 10 and 11 a bearing element of the locking and securing device in

Individual representation and in side view, top view and front view;

Fig. 12-14 the locking element of the locking and securing device designed as a lifting wedge in individual representation and in side view, top view and front view.

In the figures, 1 generally designates a lifting and sliding door for a building, which essentially consists of an outer frame or frame 2, a door leaf 3 arranged in this frame 2 with insulating glazing 4 and possibly further door elements not shown, for example at least one fixed panel.

To open the closed door leaf 3, it can be raised from a lowered position in the door leaf plane by a predetermined vertical stroke VH. The door leaf 3 raised and unlocked in this way can then be moved vertically in the door leaf plane according to the double arrow H, namely to completely or partially move the door leaf 3 out of the door opening when opening or to move the door leaf 3 back into the door opening when closing with subsequent lowering of the door leaf 3 according to the vertical stroke VH'.

Among other things, for raising and lowering this door leaf 3, but also for additionally locking the closed and lowered door leaf 3 to the frame 2, a drive rod fitting 5 is provided in the rebate of the door leaf 3, the drive rod 6 of which can be operated via a hand or lifting handle 7 and, among other things, operates locking devices (not shown) provided in the leaf rebate as well as carriages 8 for raising and lowering the door leaf 3. The carriages 8 provided on the lower horizontal beam of the door leaf 3 are with their carriage rollers 9 in

a horizontal guide rail 10 in the lower, horizontal threshold area of the frame 2 for the horizontal sliding movement (double arrow H) of the door leaf.

In order to secure the door leaf 3 in its closed, lowered position against unauthorized lifting and in particular to prevent the door leaf 3 from being opened by lifting it from the outside of the building, two locking and securing devices are provided on the top side of the upper bar of the door leaf frame 3 and in the area of the rebate, namely in the area of the movement gap 11 there between the frame 2 and the frame of the door leaf 3.

Each locking and securing device consists of a locking element 12 and a locking element or lifting wedge 13. The locking element 12 is designed as a pivot lever mounted on one side, for example as an injection-molded part made of metal or as an injection-molded part made of a suitable high-strength plastic, and has molded bearing pins 14 which are provided on one end of the lever-like locking element 12 on the same axis and protrude over two opposite sides of this locking element. The locking element 12 is mounted with the bearing pin 14 in a bearing 15, for example in a leg of the U-shaped bearing, and when the locking and securing device is mounted on the door leaf 3, about an axis perpendicular to the plane of the door leaf 3 and thus also about an axis perpendicular to the longitudinal extension of the adjacent drive rod 6. Due to the pivotable mounting, each locking element 12 can be pivoted by an angle of less than 90°, namely between

- a non-locking position in which the locking element 12 arranged in the movement gap 11 has a distance with its free end 12' in the direction of the vertical stroke VH from an opposite rebate surface 2' of the frame 2 which is equal to or slightly greater than the vertical stroke VH when the door leaf 3 is raised, and

- a locking position in which the locking element 12 rests with its free end 12' or with a contact 12" there against the surface 2' or is at a distance from this surface which is smaller than the vertical stroke VH by which the door leaf 3 must be raised in order to open.

In order to simplify the assembly of the locking element 12 on the respective bearing 15, this has a bearing bore 16 for each bearing pin 14, which is open on the side facing away from the end 12', so that the flattened bearing pins 14 can be inserted through these openings into the bearing bores 16 in a pivoting position of the respective locking element 12, which this can no longer assume in the fully assembled state of the locking and securing device.

While the bearing 15 is provided in a fixed position on the frame of the door leaf 3 or on a non-moving part of the drive rod fitting 5, the respective lifting wedge 13 is fastened to the drive rod 6 in such a way that, in the non-locking state of the locking and securing device, its upper wedge surface 13' is immediately adjacent to a control surface 12'" formed at the free end 12' of the associated locking element 12. Furthermore, the respective lifting wedge is guided with its underside on a guide surface 17' running parallel to the longitudinal extension of the drive rod 6 and arranged in a plane perpendicular to the plane of the door leaf 3, which in the embodiment shown is formed by the exposed upper side of a tab 17 of the respective bearing 15, with which (tab) the bearing is fastened in the rebate of the door leaf 3.

In the non-locking state, the lifting wedge 13 is at a greater distance from the joint or bearing pin 14 of the associated locking element 12. To transfer the locking and securing device into the locking state, the lifting wedge 13 attached to the drive rod 6 is moved in the direction of this joint according to the arrow A in Figures 3 and 4 and thereby the locking element 12, which rests with its control surface 12'" on the rising wedge surface 13', is pivoted into the locking position in which it rests against the rebate surface 2' and the

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The locking element 12 is supported with the end of the control surface 12'" or with a contact area 12"" formed by a projection against the wedge surface 13' of the lifting wedge 13, which in turn is supported by the tab 17 on the upper fold of the leaf frame 3. Both lifting wedges 13 are actuated synchronously via the drive rod. The lifting or pivoting of the locking elements 12 by the lifting wedges 13 takes place simultaneously with the lowering of the door leaf 3, so that the locking elements 12 only assume their locking position when the door leaf 3 is also in its lowered position.

As Figures 3 and 4 show, the wedge surface 13' is designed such that, starting from the end of the lifting wedge 13 closer to the locking element 12, it has a section with a greater gradient and, following this, a section where the gradient of the wedge surface 13' is increasingly reduced. In the locking state, the contact areas 12" and 12"" are arranged on a common vertical line and the contact area 12"" lies against the area where the wedge surface 13' has a reduced gradient, so that the forces acting on the locking and securing device when an attempt is made to lift the lowered door leaf 3 are transferred as pure pressure forces via the respective lifting wedge 13 and the associated locking element 12 from the door leaf 3 to the frame 2, without a force component occurring in the sense of an actuation of the drive rod 6.

As shown in Figure 5, for example, the two locking elements 12 and their associated bearings 15 are provided in the rebate of the door leaf 3, each directly in the area of the drive rod 6. The two legs 12a of the locking element 12 designed as a U-profile (see also Figures 6-8) overlap the drive rod 6 in the non-locking position over the entire leg length and in the locking position at least in the area of the bearing pins 14. While the respective locking element 12 is a U-profile, which is closed on the upper side adjacent to the rebate surface 2' by a yoke section 12b over a partial length connecting the legs 12a and forms the contact areas 12" and 12'" with the edge of its legs 12a, the

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Bearing 15 is a U-profile that is open towards the top with the two legs 15a and the yoke section 15b that connects these legs and which, in its extension, forms the fastening and guide tab 17. The two legs 15a surround the locking element 12 in the area of the bearing pins 14.

In the embodiment shown, the lifting wedge 13 is made as a solid injection-molded part made of metal with the shape described above, with an opening 18 extending in the longitudinal direction of the lifting wedge 13, open at both ends, whose cross-section is adapted to the cross-section of the drive rod 6, i.e. in the embodiment shown, has a rectangular cross-section. The lifting wedge 13 is pushed onto the drive rod 6 with the opening 18, where it can be adjusted by a certain amount in the longitudinal direction of the drive rod and can be fixed by clamping it using a clamping screw 19. After it has been attached to the drive rod 6, the lifting wedge 13 slides with its underside 13" on the top of the tab 17, which serves as a sliding or support surface 17' and is located below the drive rod 6.

The bearing 15 is fastened in the area of the rebate of the door leaf 3 below the drive rod using suitable fastening means, in particular screws, which pass through fastening holes in the yoke section 15b or at the free end of the tab 17.

The described design has the advantage that the elements forming the locking and securing device (locking element 12, lifting wedge 13 and bearing 15) are provided directly and practically without additional space in the area of the drive rod 6, and that the respective locking element with its legs 12a is guided over the drive rod 6, at least at the end having the bearing pins 14. The lifting wedge 13 can be optimally adjusted along the drive rod 6 in such a way that the desired locking and releasing of the door leaf 3 is achieved when the drive rod fitting 5 is operated.

by the locking elements 12 in particular also synchronously with the raising and lowering of the door leaf 3.

For the sake of simplicity of explanation, it was stated above that the locking and securing device in the locked state secures the door leaf 3 in its lowered and closed state against unwanted lifting. Of course, the locking and securing device also counteracts the lifting of the door leaf 3 without actuating the hand or lifting handle 7 when the door leaf 3 is not in the closed position but is lowered, i.e. for example when the lifting and sliding door 1 is partially open, and thus secures the lowered door leaf 3 even when the lifting and sliding door is partially open.

The innovation was described above using an exemplary embodiment. It is understood that numerous changes and modifications are possible without thereby departing from the inventive concept underlying the innovation. For example, instead of pivotably arranged or lever-shaped locking elements 12, it is also possible to provide other locking elements, which are then brought into a position by control elements provided on the drive rod 6 in which these locking elements or locking members, lying one above the other, bridge the movement gap 11 in such a way that an undesired lifting of the door leaf 3 is not possible.

In principle, it is also possible to design the lifting wedges 13 in such a way that they can be pushed laterally onto the drive rod 6 and then fixed there, for example by clamping. It is also possible to provide the elements forming the locking and securing device, namely the locking element 12, the associated bearing 15 and at least the part of the lifting wedge 13 having the wedge surface 13', to the side of the drive rod 6 in the rebate of the door leaf 3.

Vl 1 ·« »» · · ti i
it*. -. . · . ti
» · · · * » » , 2 3 10 4 List of reference symbols 5 Lifting and sliding door 6 Frame 7 Door leaf 8th glazing 9 Espagnolette fitting 10 Drive rod 11 Hand and lifting handle 12 Carriage 12' Carriage roller 12", 12"" Guide rail 12"' Movement gap 12a Locking element 12b free end of the locking element 13 Investment area 13' Control surface 13" leg 14 yoke section 15 Lifting wedge 15a Wedge or control surface 15b bottom 16 Bearing journal 17 camp 17' leg 18 yoke section 19 Bearing bore A20397.DOC Mounting bracket Guide or support surface for lifting beam opening Clamping screw : : :·· .·: : : : .". ···: :: : : : :

• * i »

VH VH' H A Vertical stroke (up) Vertical stroke (down) Horizontal movement Movement of the drive rod

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Claims (15)

1. Locking and securing device for securing a leaf ( 3 ) of a lifting and sliding door or a lifting and sliding window provided with a drive rod fitting ( 5 ) with a drive rod ( 6 ) against unwanted lifting from a lowered position, characterized in that the locking and securing device has at least two locking members ( 12 , 13 ) which can be mounted on an upper side of the door leaf ( 3 ) in the region of a movement gap ( 11 ) there, which is provided between the leaf and a frame ( 2 ) for lifting the lowered leaf in a first axial direction (VH), and which can be moved by the movement of a drive rod ( 6 ) from a first, non-locking state into a second, locking state, in which the locking members ( 12 , 13 ) lying one above the other with at least a partial area completely or at least to a large extent. 2. Locking and securing device according to claim 1, characterized in that a first locking member ( 12 ) is provided with at least a partial area ( 12 ') movable at least in the first axial direction (VH) on a bearing ( 15 ) that can be fixedly fastened to the wing ( 3 ) and forms a first control or contact surface ( 12 '''), and that a second locking member ( 13 ) can be fastened to the drive rod ( 6 ) of the drive rod fitting ( 5 ), is movable with this drive rod ( 6 ) in a second axial direction and forms a second contact and control surface ( 13 ') on which the first locking member slides with its first control or contact surface ( 12 ''') when moving from the non-locking state to the locking state and vice versa. 3. Locking and securing device according to claim 1 or 2, characterized in that the locking members ( 12 , 13 ) are movable relative to one another, and that a first locking member ( 12 ) is provided on a bearing ( 15 ) which can be fixedly fastened to the wing ( 3 ) and the second locking member ( 13 ) can be fastened to the drive rod ( 6 ) of the drive rod fitting ( 5 ). 4. Locking and securing device according to one of the preceding claims, characterized in that the first locking member ( 12 ) is located in the locking state at least with a partial area ( 12 ') between the second locking member ( 13 ) and a surface ( 2 ') of the frame ( 2 ) delimiting the movement gap ( 11 ). 5. Locking and securing device according to one of the preceding claims, characterized in that the second locking member is a lifting wedge ( 13 ) which cooperates with the first locking member ( 12 ) by means of a wedge and control surface ( 13 '). 6. Locking and securing device according to claim 4, characterized in that the lifting wedge ( 13 ) is supported with a surface ( 13 ") opposite the wedge surface ( 13 ') on a sliding or guide surface ( 17 ') on the sash frame ( 3 ). 7. Locking and securing device according to one of the preceding claims, characterized in that the first locking member is a locking lever ( 12 ) which is pivotably provided at one end by means of a joint ( 14 ) on the bearing ( 15 ) and forms the first control and bearing surface ( 12 ''') at its other end ( 12 '). 8. Locking and securing device according to one of the preceding claims, characterized in that the lifting wedge ( 13 ) in the non-locking position of the locking and securing device ( 11 ) has a greater distance from the joint of the locking lever ( 12 ) than in the locking state. 9. Locking and securing device according to one of the preceding claims, characterized in that the locking members ( 12 , 13 ) are provided laterally of the drive rod ( 6 ). 10. Locking and securing device according to one of the preceding claims, characterized in that the locking members ( 12 , 13 ) are provided directly on the drive rod ( 6 ) in such a way that the latter is encompassed by the locking members ( 12 , 13 ). 11. Locking and securing device according to one of the preceding claims, characterized in that the locking member ( 13 ) connected to the drive rod ( 6 ) is fastened to the drive rod ( 6 ) by sliding and clamping. 12. Locking and securing device according to one of the preceding claims, characterized in that the locking member ( 13 ) connected to the drive rod is provided adjustable on the drive rod ( 6 ). 13. Locking and securing device according to one of the preceding claims, characterized in that at least two first locking members ( 12 ) are provided, each with at least one second locking member ( 13 ). 14. Drive rod fitting for lifting and sliding doors or lifting and sliding windows, characterized by a locking and securing device according to one of the preceding claims 1-13. 15. Lifting and sliding door and/or window for buildings, characterized by a locking and securing device according to one of claims 1-13 or a drive rod fitting according to claim 14.