This disclosure relates to a locking holder with a mounting element, via which the locking holder can be fastened to a door frame in a mounting plane, and with a holding surface which is arranged spaced apart with respect to the mounting plane and can be engaged behind by a door-side locking latch in order to lock the door.
Locking holders are used in the case of openings of closable configuration. There, as part of a lock, they make locking of doors, hatches or windows to a frame which surrounds the respective opening possible. In the following text, reference is made to a door representatively for these different elements.
The locking holders as a rule have a mounting element, via which the locking holder can be connected to the door frame in a mounting plane, for example via a screw connection. The mounting plane of the mounting element is then identical to that surface of the door frame, on which the locking holder or the mounting element is fastened.
Furthermore, a holding surface which is arranged spaced apart with respect to the mounting plane is provided, with the result that an intermediate space arises between the mounting plane and the holding surface. If the door is then to be locked, a door-side locking latch of the lock, for example a rotatable turn bolt tongue, can be moved into this intermediate space, with the result that the locking latch engages behind the holding surface. In this position, the door is then fixed with respect to the door frame and can no longer be moved. In order then to open the door again, the locking latch has to be moved back into a position, in which the holding surface is no longer engaged behind.
It is often desirable that seal elements, for example in the form of sealing profiles or sealing beads, are provided between the door and the door frame, for example in order to decrease a gas exchange and to prevent associated heat losses and/or air losses. It is therefore necessary that, in the closed position, the door deforms the corresponding sealing profiles and exerts a certain contact pressure on the seal elements.
After a relatively long use or else on account of manufacturing tolerances, it can occur that the seals are not deformed to a sufficient extent by the door and it is therefore necessary for the closed position of the door to be adapted. A corresponding adaptation can be realized, for example, by way of a setting of the spacing of the holding surface with respect to the mounting plane. This is because the smaller the corresponding spacing, the closer the door lies to the doorframe in the locked position and the higher also the contact pressure of the door.
Reference document No. DE 10 2018 103 373 proposes, for example, for the holding surface to be moved with respect to the mounting plane via an adjusting mechanism. Although this apparatus makes an infinitely variable spacing setting possible, it is necessary for adjustment purposes for two screws to be released or tightened in parallel. Although this type of actuation has certainly proven itself in the past, it can occur in the case of incorrect use, when the two screws are not moved uniformly, that the elements tilt.
Proceeding herefrom, it is the object of the invention to specify a locking holder which permits simpler adjusting of the distance.
In the case of a locking holder of the type mentioned at the outset, this object is achieved by virtue of the fact that a holding shoe is provided which can be fastened releasably to a holding element in order to set the distance of the holding surface with respect to the mounting plane.
Via the holding shoe, the distance of the holding plane with respect to the mounting plane can be set and varied in a very simple way. The releasable arrangement of the holding shoe on a holding element makes extremely rapid mounting and dismantling possible, with the result that the spacing between the holding surface and the mounting plane can be set in a rapid and uncomplicated manner, even by unskilled staff.
With regard to the connection of the holding shoe to the holding element, it has been shown to be advantageous if the holding shoe can be plugged onto the holding element. As a result of plugging on, the holding shoe can be connected to the holding element or else released again from the holding element very simply and without the use of a tool. The holding shoe can be plugged onto the holding element from a mounting direction, and can correspondingly be removed again from the holding element counter to the mounting direction, it being possible for the mounting direction to be oriented here parallel to the mounting surface. Furthermore, the mounting direction can be arranged substantially transversely with respect to the longitudinal extent of the holding element, with the result that the holding shoe can essentially be plugged onto the holding element from the direction of the locking latch or from the direction of the rotational axis of the locking latch. As an alternative, however, plugging on is also possible from the opposite direction.
The holding shoe can be latched to the holding element in the connected or plugged-on position, with the result that a reliable connection of the holding shoe to the holding element is ensured and the holding shoe cannot unintentionally slip off the holding element. Furthermore, it is also possible that the holding shoe can be clipped onto the holding element. As a result, a self-locking secure connection is also provided which can also be released again without a tool. As an alternative, however, it is also possible for the holding shoe to be connected to the holding element, for example, via a screw connection.
In order for it to be possible for the distance between the holding surface and the mounting plane to be set in a variable manner, it has been shown to be advantageous if the holding shoe can be fastened to the holding element in two different mounting positions in order to set the distance. Here, each mounting position can be assigned a specific distance, with the result that the change in the distance of the holding surface with respect to the mounting plane can also be set by way of the change in the mounting position. Therefore, each mounting position can then also be assigned a predefined door position in the closed position, and/or the contact force which acts on the sealing elements can be dependent on the mounting position of the holding shoe.
With regard to the two mounting positions, it has been shown to be advantageous if the holding shoe is rotated in one mounting position by 180 degrees in relation to the other mounting position. It is therefore very simple to change to and fro between the two mounting positions and therefore to set the distance rapidly. A holding shoe which is fastened to the holding element merely has to be removed by the holding element, then has to be turned by 180°, and then has to be fastened to the holding element again. This is a working step which can be carried out in a highly intuitive manner and does not require comprehensive instruction.
Furthermore, it has been shown to be advantageous if the distance of the holding surface with respect to the mounting plane is smaller in the first mounting position than in the second mounting position. In the first mounting position, therefore, the locking latch can bear more closely against the mounting plane and, as a result, also more closely against the door frame, as a result of which the contact force which acts on the seal arranged between the door and the door frame is comparatively great. Although a great contact force is essentially positive for ensuring a reliable seal of the door, it is accompanied by it being possible for the door to be closed only with great difficulty. In the second mounting position, in contrast, the distance is greater than in the first mounting position, with the result that, in this position, the door can be closed more simply, but the seal is then possibly not compressed to quite as pronounced an extent as in the first mounting position. The selection of the mounting position therefore has to be made in a manner which is dependent on several factors. In addition, manufacturing tolerances can also be compensated for via the various mounting positions. Furthermore, it is conceivable that the holding shoe is mounted first of all in the second mounting position, but it is then necessary, for example on account of aging phenomena of the sealing elements, for it to be compressed to a more pronounced extent after a relatively long service life, in order to maintain a reliable sealing action. In this case, the holding shoe can then be removed from the holding element, rotated by 180 degrees, and then plugged onto the holding element again in the first mounting position.
With regard to the orientation of the holding surface, it has proven to be advantageous if the holding surface and the mounting plane are arranged parallel to one another. This makes it possible for the locking latch also to rest as fully as possible on the holding plane in the locking position, which ensures good force transmission and thus secure support of the locking latch. The holding surface can also be arranged parallel to the surface of the door frame. Furthermore, full-area contact of the locking latch on the holding surface or on the holding shoe also avoids the locking latch tilting or it unintentionally pulling the holding shoe from the holding element in the case of a movement, in particular into the unlocked position. It is not absolutely necessary for the holding surface to be a flat surface, but rather the holding surface may, for example, also be curved in sections.
With regard to the setting, it has proven to be advantageous if the distance of the holding surface with respect to the mounting plane can be set in the perpendicular direction. The perpendicular direction lies perpendicularly on the mounting plane, with the result that, in the case of a change in the distance of the holding surface with respect to the mounting plane, each point of the holding surface is moved away from the mounting plane uniformly.
In a structural regard, it has proven to be advantageous if the holding shoe has two limbs of different thickness. The distance of the holding surface with respect to the mounting plane can be set via the thickness of these two limbs. The thicker limb can face the mounting plane in the first mounting position, and the thinner limb can face the mounting plane in the second mounting position. The two limbs can extend parallel to one another and, if the holding shoe is connected to the holding element, one limb can be arranged on that side of the holding element which faces away from the mounting plane and one limb can be arranged on that side of the holding element which faces the mounting plane. The holding surface can be in each case that surface, on which the locking latch slides in the locked position, or that surface of the limb of the holding shoe which faces the mounting plane.
Furthermore, the surfaces of the limbs can be configured as sliding surfaces, with the result that the locking latch can slide on these surfaces in the case of locking or unlocking. The locking latch always slides, in the case of the locking and unlocking, on the surface of the limb which faces the mounting plane in the corresponding mounting position and which therefore defines the distance from the mounting plane. Furthermore, it has proven to be advantageous if the holding shoe has a U-shaped cross section. A corresponding cross section allows it to be possible for the holding shoe to be plugged onto the holding element from one direction and to engage around the holding element, in particular in a positively locking manner.
In a development of the invention, it is furthermore proposed that the holding element is connected to the mounting element via two supports. The holding element can be arranged spaced apart from and parallel to the mounting element via these two supports such that the holding element together with the two supports substantially has a C-shaped contour. The two supports can be arranged perpendicularly to the mounting plane and perpendicularly to the holding surface such that the holding surface also runs parallel to the mounting plane. The two supports can be connected to the holding element at the respective edge regions of the latter such that enough space remains between the two supports, and the door-side locking latch can engage behind the holding element or the holding surface during a rotational movement.
With regard to the configuration of the holding shoe, it has proven to be advantageous if the latter has at least one spring arm, via which the holding shoe can latch to the holding element and/or the support or supports. The holding shoe can thus be releasably connected to the holding element via the spring arm and held securely thereon. However, in order to ensure an even distribution of force, at least two spring arms have proven to be advantageous in practice. The spring arm(s) can each have one or more latching lugs, which ensure that the spring arm(s) deform automatically when the holding shoe is pushed onto the holding element and then automatically engage behind the holding element or the supports when the end position is reached. The spring arms and the latching lugs are advantageously configured in such a way that the holding shoe can also then be removed from the holding element again without the additional use of a tool. The spring arms can be arranged on the side of the holding shoe and can grip like a clamp around the holding element and/or the supports in the mounting positions. Furthermore, it is also possible that the holding shoe is connected to the holding element and/or the supports via a screw connection.
In a further development of the invention, it has proven to be advantageous if the holding shoe has four spring arms. One spring arm can be arranged on each side of the limb. The four spring arms can have latching lugs that all point in one direction. In the mounting position, the latching lugs of two spring arms can in each case engage behind the holding element, in particular the latching lugs of the spring arms, which are arranged on the side of the narrower limb.
So that the holding shoe can be reliably connected to the holding element, the holding element can have a guide for the holding shoe. The guide can prevent the holding shoe from snagging or tilting as it is being pushed onto the holding element, which in this respect simplifies the mounting and dismantling of the holding shoe even further. The guide can comprise two guide webs, which are used for linear guidance of the holding shoe. The holding shoe can be arranged between these two webs in the connected position. The guide has proven to be particularly advantageous when the holding shoe has four spring arms and/or when the holding shoe is shorter than the holding element.
However, it is furthermore also possible for the holding shoe to extend over the entire length of the holding element. In this case, an additional guide on the holding element is not absolutely necessary, but the spring arms, which can grip around the holding element and/or the supports laterally, can serve to correspondingly guide the guide shoe relative to the holding element.
In one development of the invention, the holding shoe can have a receptacle for receiving a stop at least in sections. Via the receptacle, the stop can be connected releasably to the locking holder or to the mounting element and/or the holding element, with the result that the holding shoe in this respect serves as a holding apparatus for the stop. The receptacle can be arranged between the spring arm or arms and the limbs, and can be configured in the manner of a slot.
The stop can be configured as a repositionable stop and can be connected releasably to one of a plurality of stop receptacles. Via the holding shoe, the stop can be held reliably in the stop receptacle, with the result that the holding shoe is to this extent given a dual function.
Furthermore, it has proven to be advantageous if the holding element is connected in one piece to the supports and to the mounting element. The holding element, the supports and the mounting element can therefore be produced in one working step and can be configured, for example, as an injection molded part. This makes simple and inexpensive mass production possible.
With regard to the holding shoe, it has proven to be advantageous if it is produced from plastic, in particular from a POM plastic compound. The locking holder can therefore also be produced inexpensively and in high quantities using an injection molding method. POM plastic has the advantage that it has highly satisfactory sliding properties, with the result that material abrasion does not occur during swiveling in of the locking latch in order to lock the door or during swiveling out of the locking latch in order to unlock the door. Since the locking latch is as a rule subjected to comparatively great forces, it is as a rule produced from metal, in particular from galvanized steel. If material abrasion occurred, the zinc layer which protects the steel might be abraded, and corrosion might then occur. This is prevented by way of a correspondingly satisfactory sliding property of the holding shoe. To this extent, the locking holder is then also suitable, for example, for use in the offshore field. In addition to plastics, brass or bronze which likewise have satisfactory sliding properties can also be used, for example. A surface coating of the holding shoe with a slidable material would also be possible.
With regard to the object mentioned at the beginning, a lock with a locking holder which is configured in the manner described above is also proposed. The advantages already described with regard to the locking holder are afforded. Furthermore, a door with a lock which has a corresponding locking holder is proposed.
Further details and advantages of the invention are to be explained in more detail below with reference to the accompanying drawings of one exemplary embodiment. In the drawings:
In order to fix a door 11 in relation to a door frame 12 such that the door 11 cannot be opened, a lock 14 with a frame-side locking holder 10 and a door-side locking latch 7 is provided, see
First of all, the configuration of the locking holder 10 will now be described with reference to the illustration in
Furthermore, the locking holder 10 has a holding element 2, which is connected to it via two supports 1.1. Since the two supports 1.1 are at the same height and are arranged perpendicularly on the mounting element 1, the holding element 2 extends substantially parallel to the mounting element 1 or to the mounting plane M.
To lock the door 11, the locking latch 7 is now rotated into the intermediate space between the mounting plane M or the mounting element and the holding element 2 such that the locking latch 7 can no longer be moved in the vertical direction with respect to the mounting plane M and the door 11 is fixed relative to the frame 12. The position of the holding element 2 or the distance between the holding element 2 and the mounting plane M thus defines the closed position of the door 11.
A door seal is arranged between the door 11 and the frame 12, but this is not shown in the figures. Said door seal is compressed in the closed position of the door 11 such that the door 11 does not rattle and is not movable in the closed position. In addition, the seal can also ensure that gas exchange between the interior and the exterior is prevented or at least reduced. Owing to the compression of the seal, the latter exerts at least a certain force on the door 11 in the direction of the open position and thus presses the locking latch 7 from the direction of the mounting element 1 onto the holding element 2. The side of the holding element 2 which faces the mounting plane M then acts as a holding surface 3 on which the locking latch 7 rests in the locked position.
A holding shoe 5 is also provided in order to compensate for manufacturing tolerances or possibly also signs of aging of the seals. The function and the configuration of the holding shoe 5 will be described in more detail below, in particular with regard to
The holding shoe 5 is connected releasably to the holding element 2, and can be pushed onto the holding element 2 from the front in a mounting direction MR which is oriented parallel to the mounting plane M. The intermediate space which is situated between the holding element 2 and the mounting element 1 is decreased in size by way of the holding shoe 5, which correspondingly also leads to a displacement of the holding surface 3 in the direction of the mounting plane M. The holding shoe 5 therefore leads to the locking latch 1 being situated in the locking position V closer to the mounting plane M and therefore also closer to the door frame 12. Accordingly, the door 11 is also pressed onto the seal to a more pronounced extent in the closed position. As can be seen, furthermore, it is not necessary for the holding shoe 5 to be connected to the holding element 2 by means of a tool, but rather the holding shoe can simply be plugged onto the holding element 2 by hand and it then latches automatically to the holding element 2 and/or to the supports 1.1, which will be described in greater detail below.
The holding shoe 5 can be connected in two different mounting positions M1, M2 to the holding element 2. The mounting position M1 is shown in the sectional view of
It can be seen, furthermore, that the distance A1, A2 of the holding surface 3 from the mounting plane M is also different in each mounting position M1, M2 as a result of the different limb thicknesses. The holding surface 3 in each case denotes that surface of the limb 5.1, 5.2, against which the locking latch 7 bears in the locked position, that is to say in each case that surface of the holding shoe 5 which faces the mounting plane M. By virtue of the fact that the thicker limb 5.2 faces the mounting plane M in the mounting position M1, the distance A1 of the holding surface 3 with respect to the mounting plane M is correspondingly also smaller than in the second mounting position M2. This also becomes clear in the case of a comparison of the two distances A1 and A2 in the different mounting positions M1 and M2 which are shown in
In order that the holding shoe 5 is held reliably on the holding element 2 even when the locking latch 7 is moved into the unlocking position E and in the process slides on the holding shoe 5, the holding shoe 5 has four spring arms 5.3, of which in each case one is situated on each side of the two limbs 5.1, 5.2. In order that the spring arms 5.3 can latch to the holding element 2, each spring arm 5 has a latching lug, of which, depending on the mounting position M1, M2 of the holding shoe 5, in each case two then engage behind the holding element 2, as can be seen in the illustration of
Furthermore, it can be seen in
With regard to the material selection for the holding shoe 5, materials of the type which have satisfactory sliding properties have proven to be particularly advantageous in practice. This essentially has two reasons. The locking latches 7 have to have a high strength, and are therefore as a rule made from metal and, in order to prevent corrosion, usually from galvanized metal. Since the locking latch 7 then slides on this surface when engaging behind the holding surface 3, it can possibly occur that the galvanized surface of the locking latches 7 is abraded, which is then accompanied by an increased risk of corrosion. If the holding shoe 5 and, in particular, the corresponding surfaces of the holding shoe 5, on which the locking latch 7 slides, have satisfactory sliding properties, the risk of material abrasion decreases as a result.
Moreover, it can also occur that, in the case of an excessively high pressure of the locking latch 7 on the holding surface 3, the holding shoe 5 also moves the holding shoe 5 in the case of a rotation of the locking latch 7 into the unlocking position E, and therefore pulls this holding shoe 5 from the holding element 2. To this extent, satisfactory sliding properties also make it possible that the holding shoe 5 can be held securely on the holding element 2. Possible materials for the holding shoe 5 are, for example, plastic, in particular POM, brass or bronze. Furthermore, surface coatings can also be used to improve the sliding properties.
Even if the distance A1, A2 between the holding surface 3 and the mounting plane M and, via this, also the closing position of the door 11 with respect to the frame 12 can be set by way of the holding shoe 5, a problem arises, furthermore, if the door 11 is to be modified, for example from a left-hand stop to a right-hand stop.
A door 11 hinged on the left can be seen, for example, in the illustration on the left in
First of all, for this purpose, the door 11 is completely released from the frame 12 and then rotated through 180 degrees. In doing so, the frame-side elements of the lock 14 must be released from the right-hand side of the frame 12 and then reassembled on the left-hand side of the frame 12. The same can also apply to the door hinges. If the door 11 has then been rotated through 180 degrees and fastened to the frame 12 again, it can be opened again, closed and also locked again via the lock 14. However, as is evident from a comparison of the right and middle illustrations in
A first embodiment will first be described with reference to
The locking latch 7 is shown in a locking position V in
In the illustration of
In order now to convert the door 11, for example, from a left-hand door stop to a right-hand door stop, the stop 6 must first be pulled out of the respective stop receptacle 8, 9. The handle lever 13 and the locking latch 7 can then be rotated freely such that the handle lever 13 can be rotated into the desired downwardly pointing position, as can be seen in the right-hand illustration in
As an alternative to the arrangement of the stop receptacles 8, 9 or the stop 6 on the latch housing 15, the stop receptacles 8, 9 can also be arranged on the locking holder 10. In this embodiment, the outside of the latch housing 15 no longer has to have insertion openings for the stop 6. This embodiment will be described below first of all with reference to the illustration in
The holding shoe 5 is used to fasten the stop 6 to the locking holder 10 and thus has a dual function. This is because the holding shoe 5 serves not only to adjust the distance A1, A2 of the holding surface 3 from the mounting plane M, but also serves to secure the stop 6 in the corresponding stop receptacle 8, 9 of the locking holder 10. As has already been described above, the holding shoe 5 can be latched to the holding element 2 and/or to the supports 1.1. In this latching position, the receptacles 5.4 arranged between the spring arms 5.3 and the limbs 5.1, 5.2 grip the two upper guide elements 6.3 of the stop 6 and thus hold them in the recesses 8.1, 9.1 of the respective stop receptacle 8, 9. The stop 6 is then received in a form-fitting manner between the holding shoe 5 and the mounting element 1 and the holding element 2. Furthermore, the stop receptacles 8, 9 additionally also have a contact surface 8.2, 9.2, which are each part of one of the supports 1.1. Said contact surfaces 8.2, 9.2 serve as an additional support and thus ensure that the forces acting on the guide elements 6.3 are reduced, in particular when the locking latch 7 strikes against the stop 6. The sectional view of
Furthermore, it can be seen in particular in
A further embodiment of the stop 6 and the stop receptacles 8, 9 will now be described below with reference to the illustrations in
The holding shoe 5 likewise has a receptacle 5.4 arranged between the spring arms 5.3 and the limbs 5.1, 5.2. In this embodiment, however, the receptacle 5.4 does not serve to hold the guide elements 6.3 in the respective recess 8.1, 9.1, but rather also to grip the supports 1.1 laterally in the manner of a clamp, as already described with regard to the holding element 5. In contrast to the embodiment with the four recesses 8.1, 9.1 per stop receptacle 8, 9, the contact surface 8.2, 9.2 is of greater importance in this embodiment. This is because the contact surface 8.2, 9.2 ensures that the stop 6 does not rotate when the locking latch 7 strikes against it. A corresponding sectional view through the stop 6 and the locking holder 10 is shown in
As can also be seen in
The unlocking of the lock 14 will now be explained in more detail below with reference to
For unlocking purposes, the locking latch 7 must now be rotated clockwise, as indicated by an arrow in
If the stop 6 is now pulled out of the stop receptacle 9 and inserted into the stop receptacle 8, a different stop pattern results. Starting from the position in
By repositioning the stop 6 between the two stop receptacles 8, 9, the rotational movement of the locking latch 7 can thus be controlled. Since, depending on the stop position, the latch element 7.2 and the latch element 7.1 engage behind the holding surface 3 of the locking holder 10 and the locking holder 10 is connected to the handle lever 13, the position of the handle lever 13 can then thus also be adjusted in the locking position V and the unlocking position E.
Number | Date | Country | Kind |
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10 2019 133 355.5 | Dec 2019 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/DE2020/101013 | 12/1/2020 | WO |