EP0711896A2 - Locking device for windows, doors, or the like - Google Patents

Abstract

The movable control (10) is fixed to a connecting rod (15) movable longitudinally (14) by a handle, between at least one closed and one release position. The counter piece has at least one lever (30,30') movable laterally to the control's path. The lever has a hook opening (33,33') defined by an outer hook arm (31,31') on its side facing away from the lever's pivot bearing (46). The counter piece has a fixed housing (21) with a slide guide (25) for the pivot bearing. When closed the hooked lever swivels towards the control until its hook opening contains the control and its outer hook arm protrudes in front of the control. When opened, the hooked lever swivels away from the control until its outer hook arm leaves the control's path.

Description

The invention is directed to a device of the type specified in the preamble of claim 1. In the known device (DE-AS 11 99 159), the drive rods are located in the rebate area of the wing and are displaced longitudinally by a handle provided on the wing. In the simplest case, the movable control members seated on the drive rod consist of pins, while the stationary counter-members consist of striking plates which are fastened in the fold area of the frame. By means of the handle, the pins can be transferred with respect to the striking plates into a closed position, where they engage behind the striking plates on the frame side and thereby fix the sash to the frame in its closed position. However, the pins can also be transferred from the handle to a release position, where they no longer engage behind the striking plates on the frame and therefore allow the sash to be opened. By suitable profiling and arrangement of the control members and counter-members, it is also possible to achieve positions in which the sash can be pivoted relative to the frame about a horizontal lower axis or about a vertical or horizontal axis located in the middle of the sash. The arrangement of the movable control members and stationary counterparts can also be carried out in a mirror-image manner by the longitudinally displaceable pins on the frame and the fixed striking plates on the sash.

In the known locking devices, the closed position of the control member on the counter member is not secured. In the closed position, the pin does not assume a fixed position on the cam profile of the striking plate. Due to inaccurate Assembly of the closure parts and / or due to manufacturing or assembly tolerances result in position deviations which lead to rattling noises in the closed position or when the handle is actuated to malfunctions.

The invention has for its object to develop a reliable locking device of the type mentioned in the preamble of claim 1, which automatically ensures a defined position of the movable control member on the stationary counter member in the closed position. This is achieved according to the invention by the measures specified in the characterizing part of claim 1, which have the following special significance.

In the invention, the counter member is movable in itself and comprises at least one pivotable lever which has a hook opening for receiving the longitudinally displaceable control member and is therefore to be referred to as "hook lever" in the following. The hook lever can be pivoted, namely transversely to the direction of displacement of the control member. In the closed position of the device, the hook lever is pivoted so far towards the control member that the control member is caught in the hook opening. The hook opening is delimited on its side facing away from the swivel bearing of the hook lever by an outer hook leg which, in the closed position, engages in front of the control member and opposes its backward displacement. To release the control element, the hook lever only needs to be pivoted away until its outer hook leg has come out of the displacement path of the control element. Both swiveling movements of the hook lever are automatically caused by the longitudinal displacement of the control member seated on the drive rod when the control member exerts a force on the outer or an inner hook leg. After the hook leg has been swung open, the control member can be transferred from the handle into further closing positions which characterize the respective window. In any case, the position of the control element in the hook opening of the hook lever is fixed in the closed position.

Fig. 1

einen Querschnitt durch die in Andrucklage aneinander befindlichen beiden unteren Holme eines Flügels und eines Rahmens von einem Fenster im Bereich einer erfindungsgemäßen Verschlußvorrichtung, wobei die Schnittführung durch die Schnittlinie I-I der in

Fig. 2

gezeigten Verschlußvorrichtung zu erkennen ist, bevor diese am Fenster befestigt worden ist, wobei in Fig. 2 ein horizontaler Längsschnitt durch die erfindungsgemäße Verschlußvorrichtung längs der Schnittlinie II-II von Fig. 1 dargestellt ist, und zwar in einer Freigabeposition zwischen dem Steuerglied und dem Gegenglied der Vorrichtung zeigt,

Fig. 3

einen der Fig. 2 entsprechenden Längsschnitt, wo sich das Steuer- und das Gegenglied in ihrer Schließposition befinden,

Fig. 4

in einer mit Fig. 2 und 3 ausgerichteten Position einen Horizontalschnitt durch das Steuerglied in Draufsicht auf die Treibstange längs der Schnittlinie IV-IV von Fig. 1, wobei benachbarte, in Fig. 1 erkennbare Bauteile weggelassen worden sind,

Fig. 5

einen vertikalen Längsschnitt durch die in Fig. 1 gezeigte Vorrichtung, wenn sich das bewegliche Steuerglied in einer gegenüber Fig. 2 verschobenen Stellung befindet,

Fig. 6,

in einem gegenüber Fig. 5 verkleinerten Maßstab, eine horizontale Schnittansicht durch das Steuerglied längs der Schnittlinie VI-VI von Fig. 5 und eine in Draufsicht auf das ruhende Gegenglied des erfindungsgemäßen Verschlusses, wobei der Rahmen-Holm nicht mit dargestellt wurde, und

Fig. 7,

ebenfalls unter Weglassung des Rahmens und der Befestigung, die Unteransicht des in Fig. 5 gezeigten Gegenglieds, und zwar in der dort durch den Pfeil VII gekennzeichneten Blickrichtung.

Further measures and advantages of the invention result from the subclaims, the following description and the drawings. In the drawings, the invention is shown in one embodiment. Show it:

Fig. 1

a cross-section through the two lower spars of a wing and a frame of a window in the area of a locking device according to the invention located in the pressure position against each other, the cut through the section line II of the in

Fig. 2

Shown locking device can be seen before it has been attached to the window, in Fig. 2 is a horizontal longitudinal section through the locking device according to the invention along the section line II-II of Fig. 1 is shown, in a release position between the control member and the counter member the device shows

Fig. 3

2 corresponding longitudinal section, where the control and the counter member are in their closed position,

Fig. 4

in a position aligned with FIGS. 2 and 3, a horizontal section through the control member in a top view of the drive rod along the section line IV-IV of FIG. 1, adjacent components recognizable in FIG. 1 having been omitted,

Fig. 5

2 shows a vertical longitudinal section through the device shown in FIG. 1 when the movable control member is in a position displaced with respect to FIG. 2,

Fig. 6

in a reduced scale compared to Fig. 5, a horizontal sectional view through the control member along the section line VI-VI of Fig. 5 and a plan view of the stationary counterpart of the closure according to the invention, the frame spar not being shown, and

Fig. 7,

also with the frame and the fastening omitted, the bottom view of the counter-link shown in FIG. 5, in the direction of view indicated by the arrow VII.

In Fig. 1, the two spars of a wing 12 and a frame 11th shown when they are in a pressure position of the closed window. In the rebate area, the wing 12 has a longitudinal groove 13 shown in FIGS. 1 and 5, in which a drive rod 15 is arranged. The drive rod 15 can be moved longitudinally by a handle on the wing 12, which cannot be seen in more detail, in the sense of the double arrow 14 shown in FIG. 5; the arrow direction 14 thus determines the direction of the longitudinal displacement. At least one control member 10 is seated on the drive rod 15, which is taken along with this longitudinal displacement 14 and can thus be transferred into various positions as shown in FIGS. 2 to 6. The control member 10 consists in the simplest case of a cylindrical pin which, as can best be seen from FIG. 1, is fastened vertically to the drive rod 15, e.g. B. by riveting.

The longitudinal groove 13 in the wing 12 is closed by a cover rail 16 which, as shown in FIG. 5, has an elongated hole 17 through which the cylindrical control member 10 projects into the fold area. The maximum displacement path 18 of the control element 10 can be seen from FIG. 4. The elongated hole 17 in the cover rail 16 is, of course, of sufficient length so as not to impede the movement of the control member 10 in the wing 12 resulting from the displacement path 18. Any number of control elements 10, which can also have a different profile shape, can sit on the drive rod 15.

The control member 10 located on the wing 12 is assigned a counter member 20, which consists of a plurality of components, one component of which is attached to a defined location on the frame 11. It is understood that, in reverse, the movable control member 10 could be arranged on the frame 11 and the counter member 20 on the wing 12.

As can best be seen from FIG. 2, the counter member 20 comprises a housing 21 which has a plurality of fastening holes 22 for the passage of fastening screws 19 which can be seen in FIG. 5. The fastening screws 19 anchor the housing 21 to the frame 11 in a stationary manner. The housing 21 comprises an upper plate 23 which can be seen in plan view in FIG. 6 and has a longitudinal slot 24 into which the control member 10 can move in certain positions during its longitudinal displacement 14. Inside the housing 21 there is an essentially in the direction of displacement 14 extending thrust guide 25 for a carriage 40 which, as shown in FIGS. 2 and 3, can reach different longitudinal positions. The slide guide 25 also includes an elongated hole 27 in a bottom plate 26 belonging to the housing 21, as can be seen from the bottom view of FIG. 7. A mounting pin 41, which is seated on the slide 40, engages in the elongated hole 27 and does not exclude a pushing movement of the slide 40 to the outside 44 and inward 45, which is to be explained in more detail, but ensures captive cohesion with the housing 21. The mounting pin 41 can interact with the ends of the elongated hole 27 identified with 42, 43 in FIG. 7 in a stop-like manner and thus limit a maximum extension and / or insertion position of the slide 40.

Another component of the counter-member 20 is at least one lever 30, which has a hook opening 33 and is therefore to be referred to as "hook lever" in the following. The hook lever 30 consists of a profiled plate which runs parallel to the upper plate 23 of the housing 21 and is connected to the slide 40 via a pivot bearing 46, as can be seen in FIG. 5. The pivot bearing 46 is in a bearing sleeve 47 which is anchored in the carriage 40. The carriage 40, together with the hook lever 30 mounted on it, can always be pushed out or pushed in together in the direction of the arrows 44, 45 of FIGS. 2 and 3. The carriage 40 and the hook lever 30 consequently form a structural unit which can be moved together in the housing 21, two longitudinal positions designated 60 and 60 'being shown in FIGS. 2 and 3.

In the present exemplary embodiment, two mutually identical hook levers 30, 30 'are provided, which are positioned with their two hook openings 33, 33' in mirror image to one another and are mounted together on the same pivot bearing 46 of the slide 40. Because of their identical shape, it is sufficient to describe only one hook lever 30, because this also applies in a corresponding manner to the second hook lever 30 '. The components of the hook lever 30, 30 'are consequently identified by the same reference numerals, but for distinction those of the second lever 30' are provided with a dash (').

The hook opening 33, 33 'is made up of two hook legs 31, 32 and 31', 32 ', which between them generate a free space corresponding to the cross section of the control member 10. As will be explained in more detail with reference to FIG. 3, the hook lever 30 is designed with two arms and has an outer lever arm 36 which has the respective hook opening 33 or 33 'and, on the opposite side of the pivot bearing 46, an inner lever arm 37 which is located at its inner end has an inclination profile 38 or 38 '. A spring force 58 acts on this inclination profile 38, 38 '. This spring force is generated here by a helical compression spring 50 which is arranged in an axial bore 48 of the slide 40 and acts on a plunger 49 which is longitudinally displaceable in this bore 48. The following effects are achieved.

If the cylindrical control member 10 is in its first position 51, which can be seen in FIGS. 5 and 6 and which is also illustrated in FIG. 6 by a corresponding dash-dotted position, then in the case of a wing 12 hinged to the frame 11, there is an unlocking position, where the wing 12 is freely movable relative to the frame 11. Then is the mentioned, formed from the carriage 40 and the two hook levers 30, 30 'in its extension position 60 shown in FIG. 2. This is determined by the fact that the carriage 40 in the sense of the extension arrow 44 in the direction of a maximum Has moved housing opening 28 of the housing 21 out. In Fig. 2, the hatched pin 10 is shown in a later second position and, therefore, should be imagined without considering this. The extension position 60 of the assembly is limited by the end stop 42, already described and shown in FIG. 7, of the mounting pin 41 belonging to the carriage 40. Both plate-shaped hook levers have a defined outline profile, which, as can best be seen from FIG. 3, produces a projection 39 on the longitudinal edge directed away from the hook opening 33, which protrudes through a plate widening of the hook lever 30 in the mentioned outer hook leg 31 transforms.

In the extended position 60 of FIG. 2, the outer hook legs 31 and 31 'of the two hook levers 30, 30' are located in a housing extension 29. The spring force 58 already generated by the compression spring 50, which is mentioned, results in the inclination profiles 38, 38 '. Torques that are mirror images of each other, which are illustrated by the rotation arrows 34, 34 'in FIG. 2 Generate pivotal movements on the hook levers 30, 30 'and spread them apart. As a result, the outer hook legs 31, 31 'in the housing extension 29 are pressed away from one another and come to rest with their two projections 39, 39' in front of shoulders 59 and 59 ', which, as shown in FIG. 3, limit the housing extension 29 inwards. In their spread position 34, 34 'of FIG. 2, the shoulders 59, 59' therefore engage behind the two projections 39, 39 'and thus also prevent the assembly from being pushed in in an uncontrolled manner. The extension position 60 of the structural unit is thus also precisely defined with respect to an insertion movement illustrated by the arrow 45.

If the control member 10 is now moved into its position 52 drawn in FIGS. 4 and 2 by actuating the handle, it abuts the two overlapping inner hook legs 32, 32 'of the two hook levers 30, 30'. In the spread position of the hook levers 30, 30 ', between the two outer hook legs 31, 31 there remains a sufficient passage 57 for the control member 10, which can be seen in FIG. 2. The inner hook legs 32, 32' have a slope which is opposite to one another. During further longitudinal displacement 14 of the drive rod 15, the control member 10 reaches the third position 53, which is dashed in FIG. 4, a force being exerted on the oblique inner hook legs 32, 32 ', which generates a torque which is opposite to the aforementioned spreading movement 34, 34' and the two hook levers 30, 30 'in the sense of the arrows 35, 35' of Fig. 3 pivots against each other. As a result, the two hook levers 30, 30 'are folded against one another and enclose the control member 10 like pliers with their two hook openings 33, 33' between them on all sides. During this folding movement 35, 35 ', the two projections 39, 39' on the longitudinal edges of the two hook levers 30, 30 'with their projections 39, 39' are lifted out of the associated shoulders 59, 59 'of the housing extension 29. As a result, the structural unit can be pushed in further in the direction of arrow 45 of FIG. 3 and finally reaches the fourth position 54, drawn in solid lines in FIG. 3 and indicated by dash-dotted lines in FIG. 4.

In Fig. 3 there is already the full insertion position 60 'of the assembly consisting of the carriage 40 and the two hook levers 30, 30'. When collapsing 35, 35 'of the two hook levers 30, 30' the Tappet 49 pushed into the slide bore 48 via the inclination profile 38, 38 'and thereby compresses the compression spring 50 there. The spring force 58 generated by it has increased compared to the situation in FIG. 2 and consequently exerts a higher torque which generates the spreading movement 34, 34 ', but this cannot have an effect in the insertion position 60'. When inserting 45, the longitudinal edge 56 or 56 'of the two hook levers 30, 30' facing the hook opening 33 or 33 'slides along a guide surface 61 or 61' already recognizable in FIG. 2 inside the housing 21. 3, the mutually directed guide surfaces 61, 61 'hold the two hook levers 30, 30' pressed against one another in the folding position via the longitudinal edges 56, 56 'of the lever. The spring force 58 of the compression spring 50 is thereby set ineffective for pivoting.

In Fig. 3, the full closed position of the control member 10 is in the counter member 20. The control member 10 is enclosed on all sides by the two hook levers 30, 30 'and therefore assumes a defined position there. The wing 12 is therefore locked particularly reliably on the frame 11 via the closure device 10, 20 according to the invention.

As indicated by dash-dotted lines in Fig. 4, the control member 10 could be inserted by a further longitudinal displacement 14 of the drive rod 15 to a further dot-dash position 55, without this affecting the reliability of locking the sash and frame. This can be ensured by a sufficiently large dimensioning of the elongated hole 27 in that the end stop 43 already mentioned and shown in FIG. 7 is set sufficiently far inwards.

The locking device is reversed from its closed position shown in FIG. 3 to its full release position shown in FIG. 5 in a manner opposite to the movement described above. The drive rod 15 is pushed back in the direction of the arrow 14, the spreading force 58 of the compression spring 50 remaining ineffective in relation to the two hook levers 30, 30 'in the first movement phase, up to position 53 of the control element 10 of FIG. 4. The longitudinal lever edges 56, 56 'abut against the housing guide surfaces 61, 61' mentioned. Only when the widened outer hook legs 31, 31 'the housing extension described 29 of FIG. 2, the spring force 58 can act and cause the spreading movement 34, 34 'of the two hook levers 30, 30'. Then there is again a sufficiently large passage 57 between the two outer hook legs 31, 31 'in order to transfer the control member 10 into its outermost position 51 of FIGS. 4, 5 and 6. The control member 10 is again outside the housing 21. The wing 12 is unlocked from the frame 11.

Reference symbol list:

10th

Control link

11

frame

12th

wing

13

Longitudinal groove in 12

14

Longitudinal arrow of 15 or 10

15

Connecting rod

16

Cover rail

17th

Elongated hole in 16th

18th

Displacement of 10 (Fig. 4)

19th

Fixing screw for 20

20th

Counterpart

21

Housing of 20

22

Mounting hole for 19

23

Top plate from 21

24th

Longitudinal slot in 23

25th

Thrust guide in 21

26

Lower plate from 21

27

Elongated hole in 26

28

Case opening from 21

29

Housing expansion at 28

30, 30 '

Hook lever

31, 31 '

outer hook leg of 30 or 30 '

32, 32 '

inner hook leg of 30 or 30 '

33, 33 '

30 or 30 'hook opening

34, 34 '

Swiveling movement of 30 or 30 ', spreading movement

35, 35 '

Swiveling movement of 30 or 30 ', folding movement

36

outer lever arm of 30

37

inner lever arm of 30

38, 38 '

Tilt profile at 37 of 30 or 30 '

39, 39 '

tooth-like projection at 30 or 30 '

40

carriage

41

Mounting pin for 40 to 21

42

first end stop in 26

43

second end stop in 26

44

Arrow of the extension movement of 40

45

Arrow of the insertion movement of 40

46

Pivot bearing for 30 and 30 '

47

Bearing sleeve for 46

48

axial bore in 40

49

Ram in 48

50

Compression spring in 48

51

first position of 10 (unlocked position)

52

second position of 10

53

third position of 10

54

fourth position of 10 (locked position)

55

fifth position out of 10

56, 56 '

Long edge of 30 or 30 '

57

Passage for 10th

58

Spring force of 50

59, 59 '

Shoulder at 29

60

Extension position of the unit from 40, 30, 30 '

60 '

Insertion position of the assembly from 40, 30, 30 '

61, 61 '

Guide surface of 30 or 30 'in 21

Claims (16)

Locking device for windows, doors or the like,
with a movable control member (10) on the wing (12) or on the frame (11) of the window on the one hand
and with a stationary counter member (20) on the frame (11) or wing (12) on the other hand,
wherein the movable control member (10) is stuck to a drive rod (15), but the drive rod (15) is longitudinally displaceable (14) from a handle
and the control member (10) is displaceable between at least a closed position and a release position with respect to the stationary counter member (20),
characterized by
that the counter member (20) has at least one lever (hook lever 30, 30 ') which can be pivoted transversely to the direction of displacement (14) of the control member (10) and has a hook opening (33, 33') on the swivel bearing (46) of the hook lever (30, 30 ') facing away from an outer hook leg (31, 31') is limited,
and that in the closed position of the device the hook lever (30, 30 ') is pivoted (35, 35') to the control member (10) until its hook opening (33, 33 ') receives the control member (10) and its outer hook leg (31, 31 ') engages in front of the control element (FIG. 3),
while in the release position of the device the hook lever (30, 30 ') is pivoted away from the control member (10) until its outer hook leg (31, 31') from the direction of displacement (14) of the control element (10) arrives (Fig. 2). Device according to claim 1, characterized in
that the counter member (20) has a stationary housing (21) with a thrust guide (25) for the pivot bearing (46) of the hook lever (30, 30 ')
and that when moving (14) between the release and closed position, the control member (10) takes the hook lever (30, 30 ') with it and forcibly displaces it in the housing between an extended position (60) which characterizes the released position and an inserted position (60') determining the closed position . Device according to claim 2, characterized in
that the hook opening (33, 33 ') on its side facing the pivot bearing (46) is delimited by an inner hook leg (32, 32'),
against which the control element (10) bumps when the control element (10) is pushed (45) into the housing (21) and moves from its release position into its closed position,
while the control member (10) presses against the outer hook leg (31, 31 ') when, conversely, the control member (10) moves out of the housing (21) (44) and is transferred from its closed position into its release position. Device according to claim 2 or 3, characterized in that
that - seen in the extended position (60) and / or in the inserted position (60 ') of the hook lever (30, 30') - the inner and / or the outer hook leg (32, 32 '; 31, 31') inclined to the direction of displacement (14) of the control element (10) run,
whereby the force exerted by the control member (10) during displacement (14) on the hook leg (32, 32 '; 31, 31') has a force component which causes the hook lever (30, 30 ') to pivot (35, 35') the control member (10) and / or the pivoting away (34, 34 ') of the hook lever (30, 30'). Device according to one or more of claims 2 to 4, characterized in that
that the housing (21) in addition to the thrust guide (25) for the pivot bearing (46) also has a guide surface (61, 61 ') for the hook lever (30, 30')
and that when moving between its extension and insertion position (60, 60 ') the hook lever (30, 30') slides along this guide surface (61, 61 ')
and, at least in the inserted position, the guide surface (61, 61 ') holds the hook lever (30, 30') pivoted (35, 35 ') towards the control member (10) (Fig. 3). Device according to one or more of claims 1 to 5, characterized in that
that the hook lever (30, 30 ') has a projection (39, 39') on its longitudinal side pointing away from the hook opening (33, 33 ')
and the housing (21) has a shoulder (59, 59 ') in front of which the projection (39, 39') engages in the pivoting-away position (34, 34 ') of the hook lever (30, 30') and thereby the extended position (60) of the hook lever (30, 30 ') fixed. Device according to one or more of claims 2 to 6, characterized in that a spring (50) is integrated in the housing (21), which endeavors to hold the hook lever (30, 30 ') in its pivoting-away position (34, 34') ) to transfer. Device according to one or more of claims 1 to 7, characterized in that the hook lever (30) is constructed with two arms (36, 37),
consisting of an outer lever arm (36) located on one side of the pivot bearing (46), which has the hook opening (33),
and an inner lever arm (37) which is arranged on the other side of the pivot bearing (46) and on which the spring (50) acts. Device according to one or more of claims 1 to 8, characterized in that the force (58) of the spring (50) runs essentially parallel to the thrust guide (25) of the lever (30, 30 ') in the housing (21),
but acts via an inclination profile (38, 38 ') on the end of the inner lever arm (37) and thereby exerts a torque on the hook lever (30, 30'). Device according to one or more of claims 1 to 9, characterized in that the pivot bearing (46) of the hook lever (30, 30 ') is seated on a carriage (40)
and the slide (40) is located in the slide guide (25) of the housing (21). Apparatus according to claim 10, characterized in that the spring (50) is integrated in the carriage (40). Apparatus according to claim 10 or 11, characterized in that end stops (42, 43) are provided between the thrust guide (25, 27) in the housing (21) and the slide (40),
which limit the maximum extension and / or insertion position (60, 60 ') of the hook lever (30, 30') in the housing (21). Device according to one or more of claims 1 to 12, characterized in that the counter member (20) has two hook levers (30, 30 ') which can be pivoted in mirror image with one another and which have hook openings (33, 33') pointing towards one another,
and a common control element (10) on the drive rod (15) is assigned to the two hook openings (33, 33 '),
and the two hook levers (30, 30 ') are folded towards one another (35, 35') in the closed position and, with their two hook openings (33, 33 '), hold the control member (10) of the drive rod (15) between them,
but in the release position the two hook levers (30, 30 ') are spread apart (34, 34') and produce a passage (57) for the control member (10) between their outer hook legs (31, 31 '). Apparatus according to claim 13, characterized in that in the spread position (34, 34 ') the inner hook legs (32, 32') of the two hook levers (30, 30 ') overlap one another and have an inclined course opposite one another, (Fig. 2) . Device according to claim 13 or 14, characterized in that the two hook levers (30, 30 ') have a common pivot bearing (46) in the housing (21) or on the slide (40). Device according to one or more of claims 13 to 15, characterized in that
that the two hook levers (30, 30 ') are assigned two guide surfaces (61, 61') in the housing (21) which, in the inserted position (60 '), hold the two hook levers (30, 30') between them and each other keep folded (35, 35 ') (Fig. 3),
but only a common spring (50) is provided for the two hook levers (30, 30 '), which strives to spread the two hook levers (30, 30') away from each other (34, 34 '), (Fig. 2).

Images