KR102055904B1 - Lock for a shutter or door - Google Patents

Abstract

The present invention relates to a safety catch consisting of a rotary latch and at least one catch for locking the rotary latch, and in particular a deadlock lever for blocking the catch with a deadlock lever axis and / or catch axis arranged on the rotary latch axis in the main holding position. In particular, it relates to a lock for a shutter or door for a vehicle. Occurrence of a closing can be prevented because the deadlock lever is not in the deadlock position only by gravity and / or the catch is not in the main holding device.

Description

Lock for a shutter or door}

The present invention relates to a door or shutter lock having the features of the preamble of claim 1. The door or lock can be a door or shutter of a vehicle or of a building.

The above lock has a locking mechanism comprising a rotary latch and at least one catch, the rotary latch can be locked with the catch in a closed position by the catch and the latching surfaces of the rotary latch. The latching surface is adapted to latch the locking mechanism and represents the surface of the catch and the surface of the rotary latch that causes overlap. In the closed position, the rotary latch can hold the locking bolt of the door or of the shutter so that the door or shutter can no longer be opened. If the rotary latch is in the open position, the locking bolt can leave the locking mechanism and the door or shutter can be opened. The term shutter in this example refers to the tailgate of the vehicle. In addition to this use, the lock can also be used in the back of the vehicle seat.

The rotary latch includes a load arm and a retaining arm. When the locking mechanism is locked, the rod arm directly prevents the locking bolt of the door or of the shutter from leaving the locking mechanism. When the door or shutter is closed, the locking bolt moves against the retaining arm and pivots the retaining arm and the rotary latch in the direction of the closed position.

Patent publication DE 10 2010 003 483 A1 discloses a locking mechanism in which the rotary latch exerts an opening moment on the catch when the main catch holds the rotary latch in the main holding position. For example, the rotary latch exerts this torque on the catch as a result of the pretensioned springs which can move the door seal pressure and / or the rotary latch to its open position and / or as a result of the opening of the associated door or shutter. . By the opening moment the catch can be moved out of its engagement position. In order to reliably prevent this in the case of a locked locking mechanism, an additional deadlock lever or locking lever is provided to prevent the catch from leaving its stop position. To open this locking mechanism, with the aid of the actuating lever, the deadlock lever is pivoted out of its deadlock position. In general, the opening moment exerted on the catch by the rotary latch is sufficient to unlock the locking mechanism and to open the locking mechanism.

For example, automatic opening of locks caused by incomplete or defective elements such as broken springs should be ruled out for safety reasons, particularly where possible. In spite of incomplete or faulty elements, if the lock seems to be initially securely locked after being correctly closed by the user, and as a result of the vibration, such an incomplete or faulty element may for example cause the locking mechanism to come out of the closed position. If it can be released, this is referred to as closing.

U.S. Patent No. 4,783,102 A discloses a lock for a vehicle door having a rotary latch 1, a catch and a deadlock lever, in which the deadlock lever shaft is disposed above the rotary latch shaft. 1 shows a latched rotary latch in the main holding position and a deadlock lever in the blocking position. In this locking state of the locking mechanism in the closed position, the deadlock lever arm of the deadlock lever extends horizontally and the actuating lever arm of the deadlock lever extends vertically downward. Vertically and horizontally in this situation define the vertical direction with respect to the vehicle. The lock in the vehicle is preferably installed vertically with respect to the longitudinal direction. If the spring of the deadlock lever is broken, during the closing of the vehicle door, the deadlock lever will align itself as a result of gravity in such a way that the deadlock lever at the main catch position blocks the catch. However, for example, vibrations caused by running on uneven surfaces may cause the deadlock lever to be released and pivot out of its position, thus causing automatic opening of the vehicle door or tail gate. Occurrence of a misclosure will in principle be possible within the disclosed lock.

Unless otherwise specified below, the above features of the locking mechanism may be part of the invention individually or jointly.

It is an object of the present invention to provide a securely operating lock of the type mentioned above.

The problem of the present invention is solved by a lock having the features of independent claim 1. Advantageous embodiments are disclosed in the dependent claims.

To solve this problem, a lock is provided, in particular for a vehicle door or shutter, having a locking mechanism comprising a rotary latch and at least one catch for locking the rotary latch. In particular, the locking mechanism includes a deadlock lever for blocking the catch in the main holding position. The rotary latch axis and the deadlock lever axis and / or the axis of the catch are disposed above the axis of the catch (as opposed to the direction of gravity).

In contrast to the embodiments of the prior art, the deadlock lever and / or catch are automatically moved by gravity in such a way that, during the closing of the door, the deadlock lever cannot take the blocking position and the catch cannot take the main holding position. The lock of the present invention is constructed in such a way that it is aligned.

 The expression "by gravity" means that only gravity acts on each element mounted without friction in the axis provided. Additional elements (eg, springs, levers or rods) that apply to or surround the elements with potential contact points (eg, deadlock levers, catches or rotary catches) are not included in this description. For example, where a deadlock lever aligned only by gravity is described, the description includes only deadlock levers that are mounted to the deadlock lever shaft without friction but are not exposed to forces other than gravity.

In contrast to the prior art embodiments, the lock of the invention with the features of claim 1 in the case of an incomplete or faulty element (such as a broken spring for moving the deadlock lever in the shut off position) may be closed and associated safety. To avoid injury.

In one embodiment, vertical in the latched state of the locking mechanism in the main holding position and on the blocking surface of the catch and / or on the side adjacent to the catch and / or rotary latch (preferably on the same side for always the same lock). The lock of the present invention is constructed in such a way that the line extends through the deadlock lever. The arrangement of the deadlock lever shaft in the present invention generally allows the prevention of misclosure in a manner that is particularly easy to implement from a technical point of view.

In one embodiment, the deadlock lever is formed in such a way as to generate torque, caused by gravity, which is less than the deadlock lever arm of the deadlock lever, and with respect to the deadlock lever axis.

The actuating lever arm of the deadlock lever serves to release the deadlock lever from the blocking position where the deadlock lever blocks the catch in the main holding position with the aid of the deadlock lever arm. The deadlock lever arm can block the catch directly.

In general, the difference in torque around the deadlock lever axis and the arrangement of the center of gravity at or within the deadlock lever arm is such that the deadlock lever arm and the blocking surface of the deadlock lever are aligned only as a result of gravity This results in a technically particularly simple solution for carrying out the effects described in claim 1. It is thus possible for a blocking position of the deadlock lever to be provided in a position that can only be taken by gravity but not by a downwardly facing deadlock lever arm as a result of gravity.

In one embodiment where the entire deadlock lever is a full-volume body (without cavities) and is made of only a single material, it is thicker and larger (ie, larger) as compared to the actuating lever arm of the deadlock lever. Cross section), a deadlock lever arm of a wider and / or longer deadlock lever. As a result of deadlock lever arms that are thicker, wider and / or longer than the actuating lever, a deadlock lever arm of a mechanically particularly advantageous and / or particularly rigid form is possible and moves the center of gravity into the area of the deadlock lever arm The need for additional weights to avoid is avoided.

In another development of the lock of the present invention, a straight deformation and / or off-center arrangement of the deadlock lever to the deadlock lever axis is provided.

As a result of the straight deformation and off-center placement of the deadlock lever arm, gravity is sufficient to achieve a minimum distance between the blocking surface of the deadlock lever and the catching surface of the catch, especially in a space saving manner.

Due to the straight deformation and off-center placement of the deadlock lever arm and the resulting lever effect, a particularly small trigger force is already sufficient to release the deadlock lever from the blocking position when in the blocking state.

In one embodiment, the actuation lever arm has a straight shape and / or features an off-center arrangement with respect to the deadlock lever axis in order to minimize the installation space.

In another development of the invention, the deadlock lever arm in the blocking position is disposed off center with respect to the deadlock lever axis on the side that is deflected from the blocking surface on the catch in the main holding position. As a result of this arrangement of the deadlock lever arm, gravity is sufficient to make a large gap between the blocking surface of the deadlock lever and the blocking surface of the catch in the main holding position. As a result, misclosure is further prevented.

In another development of the invention, the actuating lever arm is disposed at an angle with respect to the deadlock lever arm. The two arms thus form an angle of less than 180 °. Space can generally be saved as a result of this arrangement of the actuation lever.

In another development of the invention, the alignment of the deadlock lever arm in the blocking position is adapted to the direction of the blocking force in order to hold the catch in the main holding position. Thus during the transmission of the blocking force by the deadlock lever arm, the reduced lateral force allows the use of a particularly narrow narrow deadlock lever arm.

Another development of the invention provides a ring shape around the deadlock lever axis region, in which the outer contour of the deadlock lever arm is tangentially connected to the outer contour of the ring shape.

The alignment of the deadlock lever can be particularly easily determined by the difference between the torque of the trigger arm and the torque of the deadlock lever arm with the aid of the ring shape around the deadlock lever axis area. Due to the advantageous mechanical properties of the ring shape during power transmission, the deadlock lever around the deadlock lever shaft area can be configured smaller and in particular compact and lighter. The tangential transition from the outer contour of the deadlock lever arm to the ring-shaped outer contour around the deadlock lever axis area also provides more advantageous mechanical properties for power transmission, thus making the deadlock lever particularly compact and light Allow structure.

In one embodiment of the lock of the invention, the latching surface of the catch and the blocking surface of the catch provided for engagement in the main holding position are arranged at the same end of the catch arm of the catch and / or preferably the rectangular recess is Provided at both corners of the ends of the top, wherein the top recess includes the blocking surface and the bottom recess includes the latching surface for latching from the main holding position to the rotary latch. . The placement of the blocking and latching surfaces at the same end of the catch arm and the provision of recesses for the blocking and latching surfaces result in particularly light and compact catches.

In another development, the blocking surface of the catch is aligned in a latched and blocked state of the locking mechanism in the main holding position in such a way that the blocking force is directed to the side of the recess including the latching surface at the end of the catch arm. Thus the blocking force can be transmitted by the material between the two recesses in the end center of the catch arm. This provides a particularly light and compact catch.

In an embodiment of the lock according to the invention, the deadlock lever can be moved to the blocking position in such a way that a rotational moment corresponding to the release of the deadlock lever in the blocking position or by elastic deformation is released and released again from the blocking position. In such a way that the blocking surface of the deadlock lever and the blocking surface of the catch are aligned. As a result of the arrangement of the blocking surface and the latching surface of the present invention, a lock that works particularly reliably is provided. In the blocked and latched state of the locking mechanism in the main latching position, for example, if the component becomes defective and this defect causes the deadlock lever to be released from the blocking position, the blocking surface and latching The direction of the surface corresponds to the opening of the lock. For example, in the case of a vehicle, the risk of automatic opening of the door during driving can be reduced.

In one embodiment of the lock of the invention, an opening moment for moving the catch out of the main holding position is produced in the locked and blocked state of the locking mechanism in the main holding position. The effect of the opening moment is that the lock cannot be latched in the main holding position in the case of an incomplete or faulty component which may cause the lock to open and thus the possibility of the opening being prevented is greater. The example described is a lock of a vehicle door with a broken deadlock lever spring. In this case, the opening moment ensures that the door reopens immediately after the door is moved to the closed position during the closing by the user and thus informs the user that there is a fault.

In one embodiment of the invention, the blocking surface and / or the latching surface for latching the catch with the rotary latch in the main holding position is the deadlock lever and the vertical line of the catch axis in the latched and closed state of the locking mechanism in the main holding position. It is placed between the vertical lines of the axes. As a result of the arrangement of the blocking surface and the latching surface according to the invention, a particularly compact structure of the lock according to claim 1 with a short catch arm and a blocking arm is provided.

In one embodiment, the deadlock lever shaft area and the catch axis area overlap with respect to the vertical position and the extension, so that the horizontal line can cross the deadlock lever axis and the catch axis area. Alternatively or additionally, the rotary latch axis area and the catch axis area overlap with respect to the horizontal position and the extension, so that the vertical line can cross the catch axis area as well as the rotary latch axis area. As a result of the described arrangement of the deadlock lever axis area, catch axis area and rotary latch axis area, a particularly compact latch is provided.

In one embodiment, the rod arm of the rotary latch is disposed above the rotary latch axis and / or overlaps the rotary latch axis with respect to the horizontal extension. As a result of this advantageous arrangement, in particular a compact lock can also be provided.

1 shows the locking mechanism in the locked and blocked state in the main holding position.
2 shows a locking mechanism in the locked state in the main locking position and a deadlock lever disposed only by gravity;

1 shows a locking mechanism of a door lock of a vehicle in a locked and blocked state in a main holding position, in which a rotary latch 1, a catch 2 for locking the rotary latch 1, and a pole 2 Deadlock lever (3) in the main holding position, and deadlock lever shaft (5) and catch shaft (6) above rotary latch shaft (as opposed to gravity direction (7)). .

It should also be noted that the present invention is described with reference to a lock comprising a plurality of pools and also referred to as a so-called multiple pool locking mechanism.

However, the present invention not only explicitly mentions the multiple pool locking mechanism but can also be used for other locks with a single locking mechanism.

Using the latching surface 8, the catch 2 latches the rotary latch 1 supported on the latching surface 8 of the catch 2 by the latching surface 9. In the embodiment, the position of the latching surfaces 8, 9 with respect to each other is chosen for the rotary latch 1 to start the opening moment into the catch 2. When the deadlock lever 3 is moved out of its blocking position or its blocked position as a result of the actuation of the actuating lever 10, as a result of the opening moment, in the case of Figs. By turning counterclockwise towards the center the catch 2 can be pivoted out of its shown latching position.

1 shows the spring moment 11 of the pre-tensioned leg spring which acts on the deadlock lever 3 and can move the deadlock lever 3 in the direction of the blocking position. In order to open the locking mechanism, the deadlock lever 3 must be moved counterclockwise about its axis 5 against the spring moment 11. Deadlock lever 3 includes a blocking surface 13 at one end of deadlock lever arm 12, which meshes with blocking surface 14 of the catch in the blocked state.

2 shows the locking mechanism of FIG. 1 with the difference that the deadlock lever 3 is not in contact with the leg spring and that the deadlock lever 3 is self-aligned only by gravity. The state of the locking mechanism shown schematically in FIG. 2 shows the state of the cut pivot spring of the deadlock lever 3 in a simplified form. Shaft mounting for the deadlock lever 3, catch 2 and rotary latch 1 is not shown in FIG. 2 or FIG. 1. As a result of the construction of the deadlock lever 3 according to the invention, the deadlock lever arm 12 is self-aligned in the direction of gravity 7 and as a result of gravity the deadlock lever 3 will pivot to the blocking position. Can't. Thus, in the illustrated embodiment, the occurrence of misclosure is prevented.

In the locking state of the locking mechanism in the main holding position on the side immediately next to the catch 2 and its locking surface 14 and immediately next to the rotary latch 1 a vertical line 15 passes through the deadlock lever shaft 5. The deadlock lever shaft 5 is arranged in an extended manner. The ring shape 16 around the deadlock lever shaft 5 and unaffected by the rotational moment surrounds the deadlock lever shaft region 17 and is connected to the actuating lever arm 10 and the deadlock lever arm 12. It is connected. The deadlock lever arm 12 is straight and thicker and longer than the actuating lever arm 10 so that the deadlock lever arm 12 and the blocking surface 13 are aligned themselves downward only by gravity. With the deadlock lever shaft 5 laterally disposed next to the blocking surface 14 of the catch 2, the gap between the blocking surfaces 13, 14 is made only by gravity and thus in a simple manner.

2 shows an additionally increased gap between the blocking surfaces 13, 14 produced by the deadlock lever arm 12 arranged off center on the side that is deflected from the catch 2. In the blocking position (FIG. 1), the straight and off-center arrangement of the deadlock lever arm 12 on the side away from the catch 2 results in a similarly directed blocking force direction 20 of the blocking force holding the catch in the main holding position. It also has the advantage of providing a mechanically advantageous alignment with respect to).

The corner at the end of the catch arm 21 of the catch 2 in the main holding position is the lower rectangular recess 22 for the latching surface 8 and the upper rectangular recess 23 for the blocking surface 14. It includes (FIGS. 1 and 2). Starting at the blocking surface 8, the blocking force direction 20 is directed towards the side of the recess 22 in the recess 23 (FIG. 1). As a result of the recesses 22, 23 and each aligned blocking force direction 20, a very compact and at the same time rigid configuration of the catch and of the locking mechanism is provided.

In order to provide a compact and lightweight lock, the components of the locking mechanism are arranged in the embodiment shown in FIGS. 1 and 2 as described herein. With respect to the vertical position and extension, the deadlock lever shaft region 17 and the catch shaft region 18 are arranged to overlap. In addition, the catch shaft region 18 and the rod arm 24 are arranged so as to overlap the rotary latch shaft region 19 with respect to the horizontal position and the extension. Finally, in the locked and blocked state of the locking mechanism in the main holding position, the blocking surfaces 13, 14 and the latching surfaces 8, 9, when viewed in the horizontal direction, catch the catch axis 6 and the deadlock. Engage in a position disposed between the lever shafts 5 (FIG. 1).

1: rotary latch
2: catch
3: deadlock lever
4: rotary latch shaft
5: blocking lever shaft
6: catch shaft
7: gravity direction
8: Latching Surface (Catch)
9: latching surface (rotary latch)
10: working lever
11: spring moment
12: blocking lever arm
13: blocking surface (deadlock lever)
14: blocking surface (catch)
15: vertical direction (via deadlock lever shaft)
16: ring shape
17: Blocking lever axis area
18: catch axis area
19: Rotary Latch Shaft Area
20: breaking force direction
21: catch arm
22: recess (latching surface)
23: main part (blocking surface)
24: rod arm

Claims (14)

Has a locking mechanism consisting of a rotary latch 1 and at least one catch 2 which can be placed in a main holding position for locking the rotary latch 1,
When the catch 2 is disposed in the main holding position, a deadlock lever 3 which can be placed in a deadlock position for blocking the catch 2, a deadlock lever shaft disposed on the rotary latch shaft 4 ( 5) and / or catch axis 6,
When gravity only acts on the deadlock lever 3, the deadlock lever 3 is released from the deadlock position and / or the deadlock lever 3 releases the catch 2 so that the catch 2 is in the main holding position. A door or shutter lock for a vehicle, which is arranged to deviate from the vehicle. 2. The vertical line 15 according to claim 1, passing through the deadlock lever axis in the locked state of the locking mechanism in the main holding position lies outside the blocking surface 14 of the catch 2 and / or outside of the catch 2. Lock, characterized in that it is placed on the side and / or outside of the rotary latch (1). 3. The actuating lever arm 10 of the deadlock lever 3 according to claim 1 or 2, only by gravity and with respect to the deadlock lever axis 5, A lock, characterized in that the deadlock lever (3) is formed in such a way that it can block the catch (2) in such a way as to produce a rotation moment smaller than 12). 2. Lock according to claim 1, characterized in that the deadlock lever arm (12) of the deadlock lever (3) is thicker, wider and / or longer than the actuating lever arm (10) of the deadlock lever (3). 4. Lock according to claim 3, characterized in that the straight shape and / or arrangement of the deadlock lever arm (12) and / or actuating lever arm (10) is off-centered with respect to the deadlock lever axis (5). 4. The deadlock lever 12 in the blocking position is disposed off center with respect to the deadlock lever shaft 5 on the side off the blocking surface 14 on the catch 2 in the main holding position. Rock characterized in that. 4. Lock according to claim 3, characterized in that the actuating lever arm (10) is arranged obliquely with respect to the deadlock lever arm (12). 3. The deadlock lever 3 has a ring shape 16 surrounding the deadlock lever axis region 17, the outer contour of the deadlock lever arm 12 being outside the ring shape 16. Lock characterized in that it is connected in tangent to the contour. 2. The latching surface 9 of the catch 2 and the blocking surface 14 of the catch 2 are arranged at the same end of the catch arm 21. And / or a preferred rectangular recess (22, 23) is provided at both corners on the end of the catch arm (21) on which the latching surface (8) or blocking surface (14) is arranged. 10. The latching and closing state of the locking mechanism in the main holding position according to claim 9, wherein the blocking force (20) is directed toward the side of the recess (22) comprising a latching surface (8) at the end of the catch arm (21). Lock, characterized in that the blocking surface 14 of the catch 2 is arranged. The lock according to claim 1, characterized in that in the latched and closed state of the locking mechanism in the main holding position an opening moment for moving the catch (2) out of the main holding position is started. 2. The latched and blocked state of the locking mechanism in the main holding position according to claim 1, wherein the blocking surfaces (13, 14) and / or latching surfaces (8, 9) have a vertical line passing through the catch axis (6). Lock, characterized in that arranged between the vertical line passing through the deadlock lever shaft (5). The vertical line of claim 1, wherein a horizontal line perpendicular to the direction of gravity 7 may intersect the deadlock lever axis region 17 and the catch axis region 18 and / or are parallel to the direction of gravity 7. Lock is characterized in that it can intersect the catch region 19 and the catch axis region 18. 2. The latched and blocked state of the locking mechanism in the main holding position according to claim 1, wherein the vertical line crosses the rod arm 24 and / or the catch axis region 19 and / or the rod arm 24. Is arranged on the rotary latch shaft (4).

Images