EP0846825B1 - Locking device for a door wing movable in a case - Google Patents

Abstract

The bolt (12), on the inside (10) of the door or door leaf and moved by means of the manually operated lock (25) is tensioned by a helical spring arrangement (5) which holds the bolt in its open position. The bolt is held in its closed position when the door or door-leaf (1) is closed, by means of a holder arrangement (14) comprising a blocking device (31). The holder arrangement has a thrust bearing (14) for the bolt, in the form of a first end (11) of a closure bar (4) whose other end is joined to the lock. One end (19) of the helical compression spring is supported on a guide (6) for the door-leaf; the other end (20) comprises a stop (21) on the closure-bar for forcing the bar into the open position towards (48) the lock.

Description

The invention relates to a locking device for in a Frame movable door or door leaf, especially for an overhead Movable door leaf according to the preamble of the appended claim 1, as known from US 2 612 396 A or US 5 125 695 A. are. These publications will be discussed in more detail below.

Locking devices with a manually operated lock, at least a bolt movable by means of the lock and a spring device one finds practically for spring loading of the bolt every apartment door. Even with single-leaf gates that can be pivoted overhead, as you can find in most private garages, they come for use. The bolt is in the known locking devices trained as a catch, which after slamming the door or door leaf is pushed into the closed position. On the one hand, this has the well-known disadvantage that an unwanted slamming of the door or door leaf with all unpleasant consequences easily is possible. On the other hand, it can be solid or rigid Latches or more complex locking devices as with over Head swing garage doors often occur that the spring force together with the resistance of the bolt is so great that considerable Forces required to slam the door or door leaf are causing significant noise pollution as well as damage can lead to the frame or the locking device.

Door leaves that can be pivoted overhead often have locking devices with at least one, but usually two locking bars on one of the frame with an engaging end acting as a bolt Detect assigned counter bearing device, i.e. e.g. in corresponding Grip recesses in or on the frame or e.g. the Reach behind the frame. The locking bars are one with them rigidly connected mostly central manually operated lock actuated, mostly in the area from the middle to about the beginning of lower third of the door leaf is arranged. Such well-known Door leaves with locking bars have no spring-loaded bolts on so that the locking bars after opening the door leaf cannot be returned automatically. So with such Door leaf the actuating device of the lock, i.e. a corresponding one Gag or handle or the like. with the gate open erroneously brought into the closed position and then slamming the door leaf, the protruding ones open Locking bars with full force against the frame or a reveal and can cause corresponding damage.

A locking device is known from US Pat. No. 5,125,695 A mentioned at the beginning for a door leaf, with the features of the preamble of the attached Claim 1 known. The bolt of this known locking device is in a housing to be attached to the door leaf guided and pushing into the open position by means of a coil spring spring-loaded. An opening is provided in the housing through which a handle arranged on the latch protrudes. The opening has one such a shape that the bolt by means of the handle from the Closed position against this spring load in the open position is movable and there by rotating the bolt about its longitudinal axis fixed by pivoting the handle can be. This can prevent locking out. Becomes but the bolt is brought into its closed position when the door is open and fixed there, this results in the risk of slamming the door Damage and noise pollution.

A locking device is known from US Pat. No. 2,612,396 A mentioned at the beginning for a door leaf, with the features of the preamble of the attached Claim 1 known. With this locking device the bolt is formed by a kind of flap, which from her Close position parallel to the corresponding door leaf edge axis to be arranged in the closing direction of the door leaf in the opening position is pivotable. In this opening position is the Flap latch biased by a spring. Grabs him a locking rod which can be actuated by a manual control device on, which is too movable on the flap to put it in the Fold locking position. If the locking rod is open If the door leaf is actuated, the flap latch is opened Door leaf fixed in its closed position. If you look at this Situation trying to close the door leaf can cause damage come at the gate and at the locking device.

The object of the invention is to provide a locking device in The preamble of claim 1 of the type mentioned in such a way that Damage and noise pollution during the closing process latches in the closed position can be reliably prevented.

This task is accomplished by a locking device with the features of claim 1 solved.

The bolt of the locking device according to the invention is thus just not spring-loaded into its closed position, but opposite in its open position. The latch remains after opening always in its open position until the door or gate leaf is closed is and against the force of the spring device z. B. by hand or by a suitable z. B. powered remote control actuator is brought into the closed position. In the closed position the bolt with the gate closed by the holding device against the Spring load held in its closed position until it has an actuation the castle is returned to its open position. For this purpose, the holding device comprises a counter bearing device, which the Bolt frictionally recorded as a counter bearing when closing, one Moving the bolt back to its open position only under the force its spring load is prevented by frictional forces. So is also the door and gate leaf can be closed without locking. With the Locking device according to the invention is also an unwanted Slamming the door or gate leaf and locking yourself out prevented.

Advantageous embodiments of the invention are the subject of the dependent claims.

The holding device can be a locking device present in the lock include the z. B. with a key or a lever, button or the like attached to the lock the lock locks and thus a movement of the bolt into its open position prevented by positive locking.

In a preferred embodiment, the spring device comprises the locking device with locking bars, the first ends of which act as engagement ends, d. H. as a bar, are formed and the second, the first ends opposite ends connected to the lock are, preferably at least one helical compression spring per locking rod. The helical compression spring is supported at one end on a guide connected to the door or door leaf for the Engaging end of the locking rod. The helical compression spring captured with the other end a stop on the locking rod and thus biases it into the open position. By such an arrangement the locking device can use commercially available locks be used.

The assembly effort associated with the helical compression spring assemblies you save yourself if, in an alternative embodiment, a spring loaded Lock is used. Then the spring device is in or arranged on the lock itself and clamps movable elements the lock, such as sliders or rotatable parts, e.g. B. a nut in the open position. In this case, the spring device Pressure or tension spring devices or one Combination of both included.

An embodiment of the invention is particularly preferred in which the bolt tapers towards its end of engagement, so that at the Latch is formed a slope. A slant is already there known for snapcatchers. The well-known snap catch serves however to close the catch in the open position during the closing process pushing. The slope according to the invention serves a completely different purpose Purpose, namely to brace the door or gate leaf against the frame. During the closing process, the slope detects a corresponding extending transversely to the locking direction of the bolt Edge of the counter-bearing device and supports itself as it penetrates further like a wedge on it This will put the door or door leaf in the frame pressed. This tensioning of the door leaf with the frame provides a proper friction between the counter bearing device and bolt securely so that the bolt despite the spring load does not slip into the open position, on the other hand it holds it Door or door leaf even with wind pressure or similar impairments firmly in the frame, vibrating with corresponding noise pollution will be prevented. So that the sloping one Can ensure tension, it also points exactly in the opposite Direction like a snap slope, namely in the Direction in which the door or gate leaf at the point of the bolt is opened when the bolt and lock on the Door or door leaf are attached, or in the opposite, if the bolt and the lock on the frame and instead the counter bearing device are attached to the door or door leaf.

Furthermore, an embodiment of the invention is preferred in which one Adjustment device at the connection point between the locking rod and the lock is provided by means of which the disengagement length the bolt is adjustable in its closed position. By the locking device can adjust this disengagement length on the one hand to be adapted to local requirements. is the bolt but with the bevel for bracing the door or Door leaf provided in the frame, but can also on the other Release length of the pressure with which the door or gate leaf against the Frame is pressed, set. A simple and therefore preferred Design of the adjusting device comprises an elongated hole at the second end of the locking bar where the locking bar at an adjustable distance from the lock on a slide the lock with suitable fasteners such as one Nut and screw combination can be attached.

Figur 1

eine Riegelanordnung einer Verriegelungsvorrichtung für ein über Kopf schwenkbares Torblatt in einer ersten Ausführungsform in Schließstellung,

Figur 2

ein mit der Riegelanordnung nach Figur 1 verwendbares Schloß,

Figur 3

eine Riegelanordnung einer Verriegelungsvorrichtung für ein über Kopf schwenkbares Torblatt in einer zweiten Ausführungsform in Schließstellung und

Figur 4

ein Schloß, das bei einer dritten und vierten Ausführungsform einer Verriegelungsvorrichtung verwendbar ist.

Embodiments of the invention are explained in more detail below with reference to the accompanying drawing with Figures 1 to 4. Show it

Figure 1

a bolt arrangement of a locking device for a door leaf pivotable in a first embodiment in the closed position,

Figure 2

a lock usable with the bolt arrangement according to FIG. 1,

Figure 3

a bolt arrangement of a locking device for a pivotable overhead door leaf in a second embodiment in the closed position and

Figure 4

a lock that can be used in a third and fourth embodiment of a locking device.

In Figure 1 is a side area one in a frame overhead pivotable door leaf 1 with an associated part of the frame shown. Door leaf 1 is a normal up-and-over door, on the one hand in a side upper edge area via rollers in horizontal running rails and on the other hand in its central area is guided over a lever system. On the in Figure 1 in section shown height, the door leaf 1 in the opening direction 45 after open outside of the door opening to be closed and in Closing direction 46 closed inwards. Such a leadership mechanism is well known and therefore in the attached Figures not shown. The door leaf 1 is at its corresponding (seen from the inside outwards) right side area analog to the left side area shown in Figure 1, the is explained below as an example for both sides. same for for the frame from which the left side area of the door leaf 1 assigned part only a side frame 2 is shown in section.

In Figure 1, the door leaf 1 can be seen in its closed position, in the it with an inner lateral edge area 7 against one on the inside 8 of the side frame 2 attached cover strip 3 abuts. The Door leaf 1 is locked by means of a locking device 9. The Locking device 9 has two on the inside 10 of the door leaf 1 arranged locking rods, of which in Figure 1 only the left locking rod 4 can be seen. The locking rod 4 is designed as a bolt 12 at a first end, the engagement end 11. The latch 12 extends through one in the edge area 7 drilled hole 13 in the direction of the side frame 2. At the Side frame 2 has the cover strip 3 as part of a counter bearing device 14 in a substantially transverse to the door leaf plane Area 50 a recess 15 through which the bolt 12th is guided in the closed position shown. The latch 12 is supported thereby against an edge 16 of the side frame 2 facing Cover strip 3, which delimits the recess 15 towards the side frame 2, from. The edge 16 is located on the cover strip 3 at the transition between area 50 and a substantially parallel to that Door leaf level extending area 52 with which they are on the inside 8 the side frame 2 is attached. Reaches behind in the closed position the latch 12 the inside 8 of the side frame 2.

The bolt 12 also has a rounded end at the engagement end 11 Bevel 17 on the outside, in the opening direction 45 of the Door leaf 1 is directed to the edge 16 during a closing operation to detect and the door leaf 1 on this edge 16 in the closing direction 46 pull inwards into the closed position and under pressure in to brace this position.

Through the bore 13, the locking rod 4 is concentric in one inserted into the bore 13 bushing 6, which extends from the edge area 7 of the door leaf 1 a little further in the direction the middle of the door leaf extends. The end surface facing the center of the door leaf 18 of the socket 6 serves as a support for an end 19 of a helical compression spring 5, through which the locking rod 4 is guided. The other end 20 of the helical compression spring 5 detects a stop 21 on the locking rod 4, whereby the locking rod in their Opening direction 48, i.e. spring loaded towards the center of the door leaf becomes. This helical compression spring 5 is an essential part a spring device which the locking rod 4 and thus the bolt 12 in the opening direction 48 in an open position urges.

As can be seen from FIG. 2, this is the center of the door leaf second end 23 of the locking rod 4 is provided with an elongated hole 22. Using the elongated hole 22 and a nut and screw combination 26 is the locking rod 4 in an adjustable length a slide 24 of a preferably centrally located lock 25 attached. The lock 25 has a further slide 27 for Actuation of the left locking rod (not shown), a Nut 28 for gripping a twist grip, a toggle or one similar actuator, by means of which the lock by hand is actuated (not shown), and one via a button 29 or a locking device 30 operable locking device 31 for Block the nut 28 and the associated slide 24, 27th in the closed position. The lock transmits a rotary movement 52 the nut 28 in a sliding movement of the slide 24, 27 in the Opening direction 48 or, if rotated in the opposite direction, in one Closing direction 49.

To lock the door leaf 1, the possibly locked locking device 31 by means of the button 29 or one in the locking device 30 unlocked key unlocked. Then using the actuator moves the nut 28 to the open position. The rotational movement of the nut 28 is in the lock 25 as a train transmit the slider 24 and 27, which indie on the castle Move opening direction 48. The slider 24, 27 pull the Locking rods 4 with the support of the spring load of the Coil springs 5 to the lock 25, in the opening direction 48. The bolt 12 is released from the detection of the counter bearing device 14 and moves supported by the spring load of the helical compression spring 5 in the opening direction 48 in its open position and is held there by the helical compression spring 5. Door leaf 1 can now in the opening direction 45 without the disturbing bolt 12 the door leaf 1 opened, pivoted upwards and if desired be closed again.

To lock the door leaf 1 is closed in its closing direction 46 and moves the actuator to the closed position, the movement in turn via the rotary movement of the Nut 28, against the slide 24, 27 and the locking rods 4 opposite the pressure of the helical compression spring 5 on the bolt 12 is transmitted. The bolt 12 moves in the closing direction 49 away from the center of the door leaf until the bevel 17 engages the edge 16. As bolt 12 continues to advance in the closing direction 49 presses the edge 16 against the bevel 17, whereby the door leaf against the frame is stretched and between the latch 12 and the Edge 16 of the cover strip 3 as a counter bearing device for the bolt 12 creates a frictional engagement, the bolt 12 against the force of Coil spring 5 holds in its closed position. Of course he can Bolt 12 but also in addition to the frictional engagement or alternatively for this purpose by locking the locking device 31 by means of positive locking be held in its closed position. Both the locking device 31 as well as the counter bearing device 14 with the cover strip 3 and the edge 16 of the recess 15 thus serve as a holding device, which holds the latch 12 in its closed position.

In Figure 3, the side area of a door leaf 32 is analogous to Figure 1 shown. However, this is a door leaf 32 of a tilting gate, the lower edge of which runs on rollers in a vertically extending manner, on the inside the side frame 2 fixed rails 33 is moved. In contrast to the door leaf 1, the door leaf 32 occurs on the lower edge not out of the door opening to be closed. For the locking device 34 this leads to the result that the opening direction of the door leaf 32 on the for the locking device 34 preferred place inside and not like the door leaf 1 according to Figure 1 is directed outwards, for which the locking device 34 is adjusted accordingly. This is the locking rod 4 provided at the engagement end 11 with a bolt 35 which has an inward slope 36. The latch 35 detects in its closed position an outwardly facing edge 37 of the Running track 33. An empty space between the side frame 2, against which pressed the door leaf 34 through the bolt 35 with the bevel 36 is, and the edge 37 is bridged in that the bolt 35th unlike the bolt 12 according to FIG. 1 not in a bore in one Edge area 39 of the door leaf 32 is guided, but through a bore 38 in a locking plate attached to the edge region 39 40 is performed. The locking plate 40 is around the bore 38 provided with a collar 41 on which the helical compression spring 5 for spring loading the locking rod 4 in the open position supported. To provide the latch 35, the same locking bar can be used 4 can be used according to Figure 1, the bolt 12th includes, it only has to be rotated by 180 ° about its longitudinal axis become. At the area of the lock 25 is the locking device 34 in accordance with FIG. 3 in the same manner as in FIG 2 for the locking device 5, which is why for details reference is made to the associated description above.

The opening and closing process go in the embodiment according to Figure 3 in the same way as above to the Figures 2 and 1 described. However, the door leaf 32 is through here the bevel 36 is not drawn into the frame from the outside inwards, but pushed in from the inside out, accordingly the reversed opening and closing directions 45, 46.

The holding device for the bolt 35 in turn acts on the one hand Locking device 31 by positive locking of the bolt 35, on the other hand the edge 37 as a counter bearing device 53 of the Bolt 35 by frictionally holding the bolt 32.

Instead of the locking rod 4 with the helical compression spring 5 provided, can also a further spring device for spring loading of the bolt 12 or the bolt 35 may be provided located in or at the castle. Figure 4 shows one with another Spring device 42 provided lock 43. The lock 43 is otherwise completely analogous to the lock 25, which is why for the same parts of the locks also used the same reference numerals become. The spring device 42 has for each slide 24, 27 a tension spring 44, which has one end on the lock housing and is attached at the other end to the slide 24 or 27. The springs 44 are tensioned in the closed position and spring-loaded the locking rods 4 in the opening direction 48 in the open position. The lock 43 can both with a bolt arrangement according Figure 1 and also used with a latch arrangement according to Figure 3 be, the locking rods 4 in turn with their elongated holes 22 by means of the nut-screw combination 26 to the Sliders 24 and 26 are fastened adjustable in length. Of course it is also possible to the springs 44 inside the To provide lock housing. It is also possible that the springs 44 do not grasp the slide directly, but the nut 28 and one Bring the nut 28 into the open position by spring pressure or support.

The locking devices 9 and 34 are preferably made of metal manufactured. As the locking rod 4 with the bolt 12 or 35 is preferred used a tube rolled from a metal sheet, wherein the shape of the bolt 12 or 35 is punched into the engagement end 11 becomes. The latch 12 or 35 preferably has a spoon-like shape with U-shaped cross-sectional profile.

Claims (12)

1. A locking apparatus for a door or door leaf which is moveable within a frame, especially an up-and-over door leaf (1, 32), with a manually-operable lock (25, 43), at least one latch (12, 35) which can be moved by means of the lock (25, 43) and a spring apparatus (5, 42) to spring-load the latch (12, 35), wherein the spring apparatus (5, 42) pushes the latch (12, 35) into its open position under spring tension and wherein a holding apparatus (14, 31, 53) is provided to fix the latch (12, 35) in its closed position when the door or door leaf is closed, characterised in that the holding apparatus includes an abutment apparatus (14, 53) for the latch (12, 35) which friction-lockingly holds the latch, which has been moved into its closed position, when the door or door leaf (1, 32) is closed.
2. A locking apparatus according to claim 1, characterised in that the holding apparatus includes an operable blocking apparatus (31) of the lock for form-lockingly fixing the latch (12, 35) in its closed position.
3. A locking apparatus according to one of claims 1 to 2, characterised in that the latch (12, 35) is configured as a first end of a locking bar (4) assigned to the door or door leaf (1, 32), the second end of which is connected to the lock (25, 43).
4. A locking apparatus according to claim 3, characterised in that the spring apparatus contains a helical compression spring (5) which is supported with one end (19) on a guide (6, 40) assigned to the door or door leaf (1, 32) for the first end (11) of the locking bar (4) and grips a detent (21) on the locking bar (4) with the other end (20) in order to pressure-load the locking bar (4) in the open position in the direction (48) of the lock.
5. A locking apparatus according to one of claims 1 to 3, characterised in that the spring apparatus (42) is disposed in or on the lock (43) and pre-tensions the lock (43) itself into the open position.
6. A locking apparatus according to claim 5, characterised in that the spring apparatus (42) includes a compression spring or tension spring apparatus (44) which grips one or more moveable sliders (24, 27) of the lock (43) which are attached to the latch (12, 35) in order to spring-load the slider (24, 27) into the open position.
7. A locking apparatus according to claim 5 or 6, characterised in that the spring apparatus (42) includes a further compression and/or tension spring apparatus which grips one or more rotatable parts (28) which are attached to the latch (12, 35) in order to spring-load the rotatable parts (28) into the open position.
8. A locking apparatus according to one of claims 1 to 7, characterised in that the latch (12, 35) tapers towards its contact end (11) in such a way that a diagonal (17, 36) is formed in order to engage in a wedge-like manner with an edge (16, 37) of the abutment apparatus (14, 53) which extends transverse to the closing direction of the latch (12, 35), in order to tension the door or door leaf (1, 32) against the frame during the closing process.
9. A locking apparatus according to claim 8, characterised in that the latch (12) can be disposed in a position on the inside (10) of the door or door leaf (1) wherein the opening direction (45) of the door or door leaf (1) is configured to be outwards from the door or gate opening which is to be closed, and that the edge (16) of the abutment apparatus (14) can be assigned to the frame in such a way that it faces inwards in the closed position (46) of the door or door leaf (1), wherein the diagonal (17) is configured to be disposed on a side of the latch (12) which faces outwards into the open position (45) of the door or door leaf (1).
10. A locking apparatus according to claim 8, characterised in that the latch (35) can be disposed in a position on the inside (10) of the door or door leaf (32) wherein the opening direction (45) of the door or door leaf (1) is configured to be inwards towards the door or gate opening which is to be closed, and that the engagement surface of the abutment apparatus (53) can be assigned to the frame in such a way that it faces outwards in the closed position (46) of the door or door leaf (32), wherein the diagonal (36) is configured to be disposed on a side of the latch which faces inwards into the open position (45) of the door or door leaf (32).
11. A locking apparatus according to one of claims 3 to 10, characterised by an adjustment apparatus (22) at a connection point (23) between the locking bar (4) and the lock (25, 43) for setting a disengagement length of the latch (12, 35) in the closed position.
12. A locking apparatus according to claim 11, characterised in that the adjustment apparatus (22) includes a slot at the connection point (23) for adjustable attachment of the locking bar (4) to a slider (24, 27) of the lock (25, 43).

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