EP3553260A1 - Striker insert with day position for conditional release of a lock striker plate of a door-locking mechanism - Google Patents

Abstract

The present invention relates to a latch insert for installation in a strike plate of a door for the conditional release of a latch of a door lock mechanism. The latch insert comprises a mounting assembly for mounting the latch insert on a striker plate of a door and a counter latch which is pivotably mounted by the assembly assembly between a blocking position and a conditional release position about an axis oriented parallel to the pivot axis of the door, namely by a predetermined maximum angle. The counter-latch has a contact surface which is suitable to come into contact with the lock latch when the latch insert is mounted on a strike plate in the locked position, in order to hold the door in its closed position. The maximum angle is specified in such a way that the contact surface of the counter latch in the conditional release point is pivoted relative to the locking position to such an extent that the contact surface is suitable to come into contact with the lock latch in the assembled state of the latch insert even in the conditional release position.

Description

The present invention relates to a designated in the jargon as a trap exchange piece trap insert, which can be installed in a conventional strike plate of a door and by means of which the latch of a door lock mechanism can be released without the lock latch of the door lock mechanism by means of a key or by pressing a door handle must be withdrawn or actuated.

For such a conditional release of the latch of a door lock mechanism found, for example, in front doors of apartment buildings or doors of shops often electrically operated door openers use their blocking function can be disabled by means of a lever, but in this unlocked state, the door against unintentional opening, for example Wind gusts is still secured. In this case, the door can be pressed or pulled without actuation of the latch, if the door opening force is large enough.

However, such electrically operable door openers are not only relatively expensive, but require due to their size, which is due in particular to their electromechanical Entriegelungsorgane, special cutouts on the door frame to accommodate the door opener insert can.

The invention is therefore an object of the invention to provide a trap insert for installation in a strike plate of a door for conditional release of a latch of a door lock mechanism having a very small installation depth, so that no elaborate cutouts on the door frame or on the door frame are needed.

This object is achieved with a case insert with the features of claim 1 and in particular by the fact that the maximum angle by which the counter-trap can be pivoted, starting from the blocking position in the direction of the conditional release position, is predetermined so that the contact surface of the counter-trap in the conditional Release position relative to the blocking position is pivoted so far that the contact surface is suitable to reach in the assembled state of the case insert in the conditional release position with the latch in contact.

At this point it should be noted that the movement and direction information used here refer to the installation state of the case insert in a door frame or a door frame. In particular, for example, the preposition "before" refers to a position with respect to the mounting assembly of the trap insert facing the door opening of the door frame, as is equally true for the positional indication "front side". On the other hand, for example, the preposition "behind" refers to a position with respect to the mounting assembly located on the opposite side of the mounting assembly from the door opening as equally applicable to the "back" or "back" position.

The latch insert according to the invention thus has a locking position, similar to an electrically operable door opener insert, in which the counter latch can be locked so as to secure the latch in the latch insert, whereby the door can be held in the closed position when attempting to secure the latch Push or pull door without activating the latch. Likewise, the counter-trap of the case insert according to the invention has a conditional release position in which the counter-trap is no or only a conditional obstacle to an extended latch.

The conditional release position of the counter-trap is characterized in that in this the contact surface of the counter-trap is not parallel to the door plane of the closed door unlike in the blocking position, but is pivoted to this plane at an acute angle and thus obliquely to the door level of the closed door runs. In the conditional release position, the contact surface thus represents a ramp for the latch bolt on which it can ride when attempting to open the door without actuation of the lock latch when unlocked counter latch. In such a door opening attempt, the lock latch and in particular its free end comes into contact with the inclined contact surface of the counter latch and is pushed back by this into the lock case, provided that the force exerted on the door opening force is large enough.

In contrast to an electrically operable door opener use thus deviates in the case of the invention trap insert, the counter-latch of the latch completely when a corresponding force is exerted on the counter-trap on the door or the latch; Rather, the counter-trap of the invention Falleneinsatzes the latch case when opening the door differs only so far that the counter-trap or its contact surface forms a ramp according to the above explanations for the latch a bevel, which in turn is responsible for that in an attempt to open the door , the lock latch evades the counter trap of the trap insert.

Since the counter-trap must thus be able to be pivoted only by a relatively small maximum angle relative to its blocking position, thus can Installation depth of the trap insert are kept small, since no space behind the mounting assembly is needed, in which the counter-latch is pivoted, as is the case with conventional electrically operated door opener inserts. The fall insert according to the invention consequently has a small installation depth, so that no additional cutouts are required on the door frame for receiving the catch insert.

Since the latch insert according to the invention has no electromechanical Entriegelungsorgane and thus equipped doors can thus basically always open when unlocked counter trap or in their day position, if the door opening force is large enough, the case insert is particularly suitable for doors of shops, since these usually locked only at night, whereas it is desirable during the day to keep the door unlocked in its closed position against unintentional opening such as by gusts of wind.

In the following, reference will now be made to preferred embodiments of the insert according to the invention. Further embodiments may be apparent from the dependent claims, the description of the figures and the drawings.

Thus, it is provided according to an embodiment that the predetermined maximum angle by which the counter-latch can be pivoted maximum, between 10 and 30 °, preferably between 11 and 25 °, and more preferably between 12 and 18 °. In particular, said maximum angle may be about 15 °, including 15 °. According to the invention was thus recognized that already relatively small skew angle of the contact surface of the counter-trap may be sufficient to break the door opening force into two force components, one of which acts parallel to the direction of translational movement degree of freedom of the latch bolt and which is large enough to to push this back against its possible spring and frictional forces in their retracted position.

According to a further embodiment, the mounting assembly may comprise a basic body, here referred to as a base plate, by means of which the catch insert can be attached to a strike plate of a door and in particular to its rear side. Here, the counter-trap extends in both the blocking position and in the conditional release position in front of the back of the base plate. The base plate or the base body thus forms the rear boundary of the trap insert, over which the counter-trap protrudes neither in the blocking position nor in the release position to the rear. The trap insert can thus be mounted flush with the surface of a strike plate on the base plate, so that no additional cutouts on the door frame, for example, must be provided for receiving the counter-trap in the conditional release position.

In order to be able to keep the dimension of the trap insert according to the invention in the direction of the door level of the closed door small, it may further be provided according to a further embodiment that the base plate has a recess which receives a rear portion of the counter-trap. The counter-trap can thus extend with its rear portion into the base plate, whereby the dimension of the case insert in the direction of the door level of the closed door can be kept low.

According to a further embodiment, it can be provided that the pivot axis of the counter-trap is located in front of the rear side of the base plate, by means of which the latch insert can be attached to a strike plate of a door. In contrast, in conventional electrically operable door opener inserts, the pivot axis of the counter-catch is behind the strike plate, which is at the expense of the installation depth.

In particular, the installation depth of the trap insert according to the invention can be kept small in that the counter latch has a rounded edge on its rear side, which faces the hinge side of the door in the assembled state, wherein preferably the counter latch also has a non-rounded edge on its rear side has, which faces in the mounted state of the hinge opposite side of the door. Namely, if such a trained counter trap, starting from its blocking position in which the contact surface extends in the direction of the door plane of the closed door, pivoted in the direction of their conditional release position, so the counter-trap and in particular the rounded edge on the back of the counter-trap emerges differently than at an electrically operable door opener insert, wherein the counter-trap is formed by an angle profile which is articulated in the region of the free end of one of its two legs, not on the back of the base plate in the door frame. For this purpose, in particular, the back edge of the counter-trap, which faces the hinge side of the door in the assembled state, be rounded, otherwise, and especially if the rear portion of the counter-trap is received by a recess in the base plate, there would be a risk that the back edge of the counter-latch, which faces in the assembled state of the hinge side of the door, comes to rest behind the back of the base plate when the counter-latch is pivoted to its conditional release position.

According to a further embodiment, the mounting assembly may comprise a mountable on a front side of the base plate support bracket which forms at two opposite ends each having a flange which protrudes in the mounted on the base plate state of the support bracket from the front of the base plate. The counter-trap extends in this case between the two flanges and is pivotally supported by this between the blocking position and the conditional release position. In particular, while the carrier bracket for purposes of fine adjustment of the case insert in different discrete mounting positions on the base plate are mounted, including the support bracket may have at least one slot through which a fastener extends into the base plate.

So that the counter-trap, starting from its blocking position in the direction of its conditional release position can not be pivoted further than the predetermined maximum angle, the mounting assembly and in particular its support bracket form a stop, with which the counter-trap and in particular a non-rounded back edge thereof in the conditional release position can get into contact.

As already mentioned above, the counter-latch can be locked in its blocking position, for which purpose according to a further embodiment a corresponding locking mechanism can be provided. In particular, this locking mechanism may comprise a locking slide which is manually displaceable parallel to the pivot axis of the counter-latch and which forms at least one locking section such as a locking tab which, in the locked position of the locking slide, comes to lie in front of a counter-blocking section such as a counter-locking tab is formed on a rear, the tape opposite side facing edge of the counter-trap. Preferably, the locking portion may have on its rear side and / or the Gegensperrabschnitt on its front side a ramp for the respective other locking portion or Gegensperrabschnitt. The fact that the at least one locking lug of the locking slide of the locking mechanism comes to rest in the locked position in front of the counter-locking nose collides in the locked position of the locking mechanism, the counter-locking nose of the counter-latch with the locking lug of the locking slide, when a door opening attempt on the latch bolt torque on the Counter-trap is exercised, whereby the counter-trap can not be pivoted into its release position and is locked in its locked position.

Although the counter-trap in the unlocked position or in the day position of the locking mechanism between the locking position and the conditional release position can be pivoted freely, which means that no return spring or other elastic return means is present, by means of which the counter-trap, starting from their conditional release position back in their blocking position is urged. Rather, the maximum angle by which the counter-latch can be pivoted is so small that the latch latch is secured in the latch insert substantially free of play regardless of whether the counter-latch is in its blocking position or in its conditional release position.

However, in order not to have to pivot the counter-trap by hand from its conditional release position back to its blocking position before the locking slide can be pushed to lock the counter-latch in its locked position in which the locking lug of the locking slide comes to rest in front of the counter-locking lug of the counter-trap can the locking lug and / or the Gegensperrnase form the previously mentioned ramp, since it can be ensured by this, that the locking slide can be pushed into its locked position even if the counter trap is in its conditional release position, without this being a Collision of locking nose and anti-locking nose comes; Rather, due to the locking bevel formed on the locking lug and / or the counter locking nose, the anti-locking nose and thus the counter-trap is automatically pushed back into its blocking position when the locking slide is pushed into its locked position, although the counter-trap is in its conditional release position.

Fig. 1

eine perspektivische Explosionsdarstellung eines erfindungsgemäßen Falleneinsatzes zeigt;

Fig. 2

eine Draufsicht auf den Falleneinsatz der Fig. 1 im zusammengebauten Zustand mit verriegelter Gegenfalle zeigt;

Fig. 3

eine Draufsicht auf den Falleneinsatz der Fig. 1 im zusammengebauten Zustand mit entriegelter Gegenfalle zeigt;

Fig. 4

eine Längsschnittdarstellung des Falleneinsatzes der Fig. 3 gemäß der Schnittführung D-D zeigt;

Fig. 5

eine Längsschnittdarstellung des Falleneinsatzes der Fig. 2 gemäß der Schnittführung E-E zeigt;

Fig. 6

eine Querschnittsdarstellung des Falleneinsatzes der Fig. 2 gemäß der Schnittführung A-A zeigt; und

Fig. 7

eine Querschnittsansicht des Falleneinsatzes der Fig. 3 gemäß der Schnittführung B-B zeigt.

In the following, the invention will now be described purely by way of example with reference to the drawings, in which:

Fig. 1

an exploded perspective view of a Falleneinsatzes invention;

Fig. 2

a plan view of the trap insert the Fig. 1 in the assembled state with locked counter-trap shows;

Fig. 3

a plan view of the trap insert the Fig. 1 in the assembled state with unlocked counter-trap shows;

Fig. 4

a longitudinal sectional view of the trap insert the Fig. 3 according to the cutting guide DD shows;

Fig. 5

a longitudinal sectional view of the trap insert the Fig. 2 according to the cutting guide EE shows;

Fig. 6

a cross-sectional view of the trap insert the Fig. 2 according to the section AA shows; and

Fig. 7

a cross-sectional view of the trap insert the Fig. 3 according to the section BB shows.

Fig. 1 shows an exploded perspective view of the invention Falleneinsatzes 10, in which the individual components thereof in their entirety are clearly visible: Thus, the trap insert 10 comprises a base plate 14 and attachable thereto by means of screws 34 support bracket 16, which together a mounting assembly 12 for attachment of the Falleneinsatzes 10th on a lock plate, not shown here form a door. Further, the latch insert 10 includes a pivotally mounted by the mounting assembly 12 counter-latch 20 and a locking slide 46 and a leaf spring 54, wherein the locking slide 46th serves to lock the catch 20 in its locked position, as will be explained in more detail below.

How the particular Fig. 1 can be removed, the basic body 14 referred to here as base plate 14 at opposite ends of the base plate 14 has two reinforced mounting portions 60 with mounting holes 62 formed therein, in the starting from the front of a strike plate on which the trap insert 10 is to be attached, two not shown screws can be screwed. Extending between the two reinforced mounting portions 60 is a thinner plate portion 64 which forms a recess 28 and a protrusion 30 extending therefrom on the side facing the band side of the door in the assembled state.

On its front side, the plate portion 64 has a corrugated surface 32, which serves to attach the carrier bracket 16 for purposes of fine adjustment of the trap insert 10 in different discrete mounting positions on the base plate 14, including the support bracket 16 at its back to the corrugated surface 32nd having complementary trained corrugation. The attachment of the support bracket 16 to the base plate 14 is effected by means of the two screws 34 which extend through slots 44 which are formed at opposite ends of the support bracket 16. The screws 34 are screwed into mounting holes 36 which are formed in the plate portion 64 of the base plate 14, so that the support bracket 16 by means of screws 34 with the base plate 14 and in particular its plate portion 64 can be clamped.

Again Fig. 1 can also be removed, forms the support bracket 16 at its opposite ends adjacent to the slots 44 each have a flange 18 which is mounted in the attached to the base plate 14 state of the front 26 of the base plate 14 protrudes. The two flanges 18 are used for rotatably supporting the counter-latch 20, to which it has at its opposite ends in each case a pin 36, wherein each pin 36 engages in a U-shaped recess 68 extending from the back of the respective flange 18 in the same hineinerstreckt. In the attached to the base plate 14 state of the support bracket 16, these U-shaped openings 68 are thereby closed by the plate portion 64 of the base plate 14, so that the counter latch 20 is secured captive on the mounting assembly 12 of mounting plate 14 and support bracket 16.

As in particular the cross-sectional views of the 6 and 7 can be removed, the counter-latch 20 can be worked out of a profile with a rectangular cross-section, in which not only the two front edges of the counter-latch 20, but also the rear edge 70 thereof, which faces in the mounted state of the hinge side of the door, are rounded. The other back edge 72 of the counter-latch 20, however, which faces the door in the mounted state of the hinge opposite side, is not rounded.

Like the synopsis of 6 and 7 can also be found, the counter-trap 20 between the in the Fig. 6 illustrated blocking position and in the Fig. 7 pivotally mounted shown conditional release position, namely by a predetermined maximum angle, which is here 15 °, as shown in the Fig. 7 is noted. The maximum pivotability or the maximum angle is limited by two stop surfaces 40, 42 which are formed on the inner sides of the two flanges 18. In the in the Fig. 6 illustrated blocking position is in this case the contact surface 22 of the latch 20, with which the latch of the door comes into abutment to hold the door in its closed position, with the stop surfaces 40 in abutment (see also Fig. 1 ). In contrast, arrives in the in the Fig. 7 shown conditional release position the rear end of the contact surface 22 with the stop surface 42 in abutment (see also Fig. 1 ), the opposite to the stop surface 40 is angled at an angle of 195 °. The rear edge 72 of the counter-latch 20, which faces the hinge opposite side of the door in the assembled state, is therefore not rounded, so that the rear end of the contact surface 22 can fully and fully engage with the stop surface 42 into abutment.

Like that 6 and 7 can also be removed, the counter-latch 20 is in both the blocking position according to Fig. 6 as well as in the conditional release order according to Fig. 7 More specifically, in this case, the rear portion of the counter-latch 20 extends into the recess 28 which is formed along the edge of the base plate 14 in the same. Due to the fact that the rear edge 70 of the counter-latch 20, which faces in the mounted state of the hinge side of the door, is rounded, it is located even in the pivoted release position according to Fig. 7 the counter-trap 20 exclusively in front of the rear side 24 of the base plate 14, so that in the door frame no additional milled or the like are required for receiving the case insert.

To the counter trap 20 in the in the Fig. 6 The latch insert 10 comprises the previously mentioned locking slide 46, which sandwiches between the plate portion 64 of the base plate 14 and a cap portion 74 of the support bracket 16 which connects the two flanges 18 of the support bracket 16 in the longitudinal direction of the counter-latch 20 slidably arranged. For this purpose, a small actuating lever 76 protrudes from the locking slide 46, which extends through an opening in the cap portion 74, so that the locking slide 46 can be actuated manually via this lever 76.

Again Fig. 1 can be removed, this locking slide 46 has on its side facing the hinge side of the door three locking lugs 48. In appropriate Way are at the rear portion of the counter-latch 20 at its the band opposite side facing contact surface 22 three counter-locking lugs 50 are formed (see the Fig. 3, 4 and 5 ), which come to lie in the blocking position of the counter-latch 20 in the bulge 30 of the base plate 14. In the in the Fig. 4 shown conditional release position of the counter-latch 20, however, the counter-locking lugs 50 of the counter-latch 20 come to rest in the distances between the locking lugs 48 of the locking slide 46. In the in the Fig. 4 illustrated unlocking position of the locking slide 48, thus the counter-latch 20 can be pivoted freely between its blocking position and the conditional release position. In the in the Fig. 5 On the other hand, the locking lugs 48 of the locking slide 46 come to lie in front of the counter-locking lugs 50 of the counter-latch 20, whereby it is secured or locked in the locking position.

How the particular Fig. 4 can also be removed, form the locking lugs 48 at its rear and the counter-locking lugs 50 at its front in each case a ramp 52, with which the respective ramp 52 of the other nose 50, 48 can come into contact. Therefore, is the counter-trap 20 according to the 4 and 5 in their conditional release position, it is not necessary to first swing back the counter-trap 20 by hand into its locking position in order to be able to lock the counter-latch 20 by means of the locking slide 46; Rather, the locking slide 48 can be moved in the conditional release position of the latch 20 in its locking position, since in this case the ramps 52 of the locking lugs 48 accumulate on the ramps 52 of the Gegensperrnasen 50 while pushing the same backwards, whereby the counter-latch 20 is automatically pivoted into its blocking position becomes.

However, the locking slide 48 is in its unlocked position, the counter-latch 20 can freely between its blocking position according to Fig. 6 and their conditional release order Fig. 7 be pivoted in the contact surface 22nd has a certain inclination. Therefore, if an unlocked gate valve 46 attempted to open the door without operating the latch, this is the counter-trap 20 of the lock latch starting from their locked position first in their conditional release position ( Fig. 7 ) pivots. If the door opening force applied in this case is large enough, the free end of the lock catch rides on the now inclined contact surface 22 of the counter latch 20 and is pushed back or pushed by it. As in the locked position, therefore, the counter-latch 20 also represents a certain obstacle to the latch in the conditional release position, which however can be overcome with a correspondingly large door-actuating force, since in the conditional release position the contact surface 22 of the counter-latch 20 serves as a ramp for the latch latch, the escapes the latch with correspondingly large door operating force.

In order to reliably hold the locking slide 46 both in its locking position and in its unlocked position, a leaf spring 54 is sandwiched between the cap portion 74 of the carrier chamber 16 and the locking slide 46, into which a locking cam 56 is impressed, which for securing the locking slide 46th in one of its two positions with corresponding latching openings 58 can engage, which are formed in the locking slide 46.

LIST OF REFERENCE NUMBERS

10

case application

12

mounting assembly

14

Base plate / base

16

Beam clamp

18

flange

20

against the case

22

contact area

24

Back of 14

26

Front of 14

28

recess

30

recess

32

grooved surface

34

screw

36

spigot

38

openings

40

stop surface

42

stop surface

44

Long hole

46

blocking slide

48

locking tab

50

Against locking lug

52

approach ramp

54

leaf spring

56

locking cams

58

latching opening

60

attachment section

62

fastening opening

64

plate section

68

U-shaped recess

70

rounded back edge

72

non-rounded back edge

74

cap section

76

lever

Claims (14)

A latch insert (10) for installation in a strike plate of a door for conditionally releasing a latch of a door lock mechanism, comprising: - A mounting assembly (12) for mounting the latch insert (10) on a strike plate of a door; and - A counter-latch (20) which is pivotally mounted by the mounting assembly (12) between a locking position and a conditional release position about an axis oriented parallel to the pivot axis of the door, by a predetermined maximum angle, wherein the counter-latch (20) has a contact surface (20). 22) adapted to engage, in the locked condition of the latch insert (10) in the locked position, with a latch of the door to restrain the door in its closed position; wherein the maximum angle is predetermined so that the contact surface (22) of the counter-latch (20) in the conditional release position relative to the blocking position is pivoted so far that the contact surface (22) is adapted to in the assembled state of the latch insert (10) also in the conditional release position to get into contact with the lock latch. Trap insert according to claim 1,
characterized in that
the predetermined maximum angle between 10 and 30 °, preferably between 11 and 25 °, and more preferably between 12 and 18 °, and wherein in particular the maximum angle is about 15 °, including 15 °. Trap insert according to claim 1 or 2,
characterized in that
the mounting assembly (12) comprises a base plate (14) formed with a front side (26) and a rear side (24) for attachment to a strike plate of a door, the anti-latch (20) not being in both the locked position and the conditional release position extends beyond the back of the base plate (14). Trap insert according to claim 3,
characterized in that
the base plate (14) has a recess (28) for receiving a rear portion of the counter-latch (20). Trap insert according to claim 3 or 4,
characterized in that
the pivot axis of the counter-latch (20) is located in front of the rear side (24) of the base plate. Trap insert according to at least one of the preceding claims,
characterized in that
the counter - latch (20) has on its rear side a rounded edge (70) which in the installed state faces the hinge side of the door and / or that the counter - latch (20) has on its rear side a non - rounded edge (72) which in mounted state of the hinge opposite side of the door is facing. Trap insert according to at least one of claims 3 to 6,
characterized in that
the mounting assembly (12) comprises a support bracket (16) attachable to a front side (26) of the base plate (14) forming at each of two opposite ends a flange (18) mounted in the base plate from the front side (26) the base plate (14) protrudes, wherein the counter-latch (20) extends between the two bottles (18) and is pivotally supported by this between the locking and the release position. Trap insert according to claim 7,
characterized in that
the counter-latch (20) has a respective pin (36) at its opposite ends, each pin (36) engaging in an opening (68) of the respective flange (18) and being rotatably mounted therein. Trap insert according to at least one of claims 7 or 8,
characterized in that
the support bracket (16) for purposes of adjustment of the trap insert (10) in different discrete mounting positions on the base plate (14) is attachable, including in particular the support bracket (16) has at least one slot (44) through which a fastener (34) extends into the base plate (14). Trap insert according to at least one of claims 7 to 9,
characterized in that
the carrier clip (16) forms at least one stop (42), with which the counter-latch (20) and in particular a non-rounded rear edge (72) of the counter-latch (20) comes into contact in the conditional release position. Trap insert according to at least one of the preceding claims,
characterized in that
the latch insert (10) comprises a locking mechanism by means of which the counter latch (20) can be locked in the blocking position, Trap insert according to claim 11,
characterized in that
the locking mechanism comprises a parallel to the pivot axis of the counter-latch (20) in particular manually displaceable locking slide (46) which forms at least one locking portion (48) which comes to rest in the locked position of the locking slide (46) in front of a Gegensperrabschnitt (50) is formed on a rear, the tape opposite side facing edge of the counter-latch (29). Trap insert according to claim 12,
characterized in that
the locking portion (48) on its rear side and / or the Gegensperrabschnitt (50) on its front side a run-on slope (52) for the respective other portion (50, 48). Trap insert according to at least one of the preceding claims,
characterized in that
the counter latch (20) is freely pivotable in an unlocked position of the locking mechanism between the locking position and the conditional release position.

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