DE102019117867A1 - LOCKING WITH A REINFORCED HOUSING FOR A WINDOW, DOOR OR THE SAME - Google Patents

Abstract

The present invention relates to a closure for a window, a door or the like, the window, the door or the like having a frame and a sash which is movable relative to the frame. The lock comprises a housing designed for attachment to a frame or a sash and a locking element for securing a locking element attached to the sash or frame, the locking element being rotatably mounted in the housing on a bearing base formed by the same. According to the invention, a stiffening plate is positively integrated into the bearing base.

Description

The present invention relates to a closure with a reinforced housing for a window, a door or the like, the window, the door or the like having a frame and a sash which is movable relative to the frame.

The housing is used for fastening to the frame or the sash and to accommodate a closure element which is rotatably mounted in the housing on a bearing base formed by the same and by means of which a locking element located on the sash or the frame can be secured. For example, the closure element can form a holding receptacle for the locking element and can be pivoted between a release position released by the locking element in an opening direction of the sash and a blocking position blocking the locking element in the opening direction. A window, door, gate or the like can thus be locked and unlocked by means of such a lock.

Depending on the application, the housing of the lock, which is used to accommodate the individual mechanical components of the lock, can be provided for attachment to the frame and the locking element for attachment to the sash, or vice versa. In particular, the housing of the lock can be designed for receiving and fastening in a fitting groove of the frame or of the sash and thus can be relatively slim and filigree.

The locking element can be a simple pin, in particular a roller pin. In particular, the pin can have a cylindrical cross-section in order to enable particularly easy sliding into the holding receptacle of the closure element. In order to increase the protection against inadmissible prying open of the closure, the pin can preferably be designed as a mushroom head pin.

When the lock is installed, the locking element fastened to the sash or the frame enters the holding receptacle of the locking element in the course of a closing movement of the sash, so that the locking element is pushed into its blocking position in the course of the closing movement of the sash by the locking element, in which it is in such a manner it is ensured that the closure element cannot return to its release position.

In order to be able to open the sash again, the closure element must therefore be actively moved into its release position, which can be done, for example, by means of an electric motor which is connected to the closure element in a driving manner via a reduction gear. By means of this electric motor, the closure element can be moved from its release position beyond the blocking position into a closed position in which the wing is completely fixed to the frame due to the engagement of the locking element in the holding receptacle of the closure element and is firmly braced against it or a seal provided thereon can be. If the sash is secured with play on the frame in the blocking position of the closure element, which enables a certain gap ventilation, the sash, on the other hand, is firmly clamped to the frame or a seal provided along it in the closed position of the closure element, as is necessary for safety reasons or in favor of the Thermal protection may be desirable.

However, if the closure element is pulled into its closed position via a reduction gear by means of an electric motor, in which the sash is firmly clamped to the frame or a seal provided along the same, the closure element does not occur due to the bracing of the sash against the frame in the housing of the closure element insignificant forces, which in the worst case can even lead to breakage of the housing due to the filigree design of the housing.

The invention is therefore based on the object of reducing the tendency of the housing to break in a closure of the type described above.

This object is achieved with a closure with the features of the connection 1 and in particular in that it has a reinforcement plate which is integrated in the bearing pedestal in a form-fitting manner.

The forces that occur when the sash is braced against the frame are transferred from the locking element to the locking element, which means that there is a concentration of stress in the area of the locking element and thus at the point where it is in the housing or is mounted on its bearing pedestal. In order to prevent overstressing of the bearing pedestal, it is reinforced in the manner according to the invention by a reinforcing or stiffening plate which is integrated in the bearing pedestal in a form-fitting manner.

For example, the reinforcement plate can be an insert that is fitted into a recess that is complementary to the shape of the reinforcement plate in the bearing base. The bearing pedestal thus acts together with the reinforcement plate fitted therein in the event of bending stress as a composite component in which the forces resulting from the bending stress are absorbed by the bearing base and the reinforcement plate according to the rigidity ratios. The bearing pedestal as such can thus be made relatively filigree, since the forces transmitted by the closure element are largely absorbed by the reinforcement plate.

Preferred embodiments of the invention will now be discussed below. Further embodiments can emerge from the dependent claims, the description of the figures and the drawings.

Thus, according to a preferred embodiment, it can be provided that the housing is designed in one piece as a metal cast part, in particular as a metal die-cast part, the reinforcement plate being cast into the bearing base during the casting process, preferably completely. There can therefore be no relative movement between the reinforcement plate and the bearing pedestal. Rather, the bearing pedestal acts together with the integrated reinforcement plate as a composite component that absorbs the forces to be transmitted according to the stiffness of the reinforcement plate and the bearing pedestal, which means that the reinforcement plate absorbs the majority of the forces to be transmitted due to its greater rigidity.

According to a further embodiment, the reinforcement plate can have irregular edges at least in some areas, which means that the reinforcement plate does not have a straight or straight edge in these areas. Rather, the reinforcement plate can have bulges, indentations, projections, teeth, prongs or the like in those areas in which it is irregularly bordered. In the areas of irregular borders, the reinforcement plate is thus to a certain extent interlocked with the bearing pedestal and thus reliably connected to the bearing pedestal, as is necessary so that the bearing pedestal can act as a composite component together with the reinforcing plate.

So that the forces to be transmitted by the closure element can be largely absorbed by the reinforcement plate, the reinforcement plate, unlike the housing, can be made of a metal material with higher strength properties. For example, the inventive design of the closure allows the housing including the bearing pedestal to be made of a zinc or aluminum alloy as a die-cast part, provided that the reinforcement plate is made of a material that has a lower tendency to brittle fracture and / or a higher ductility or toughness than that Has material from which the housing is made. It is therefore irrelevant if the housing, which is designed, for example, as a zinc die-cast part, has a certain tendency to brittle fracture, since the forces to be transmitted via the closure are largely absorbed by the reinforcement plate. If, for example, zinc, aluminum or magnesium alloys are suitable for the housing, the reinforcement plate should be made of a metal material with a lower tendency to brittle fracture or higher ductility, such as chrome steel, in particular X14CrMoS17 steel.

As already explained above, the closure element can be driven by an electric motor via a reduction gear. Accordingly, it can be provided according to a further embodiment that a gear element of the reduction gear such as an at least partially toothed gear or a preferably two-armed lever is rotatably mounted on the bearing pedestal, this gear element being in driving engagement with the closure element in order to be driven via this to be able to. The forces that are required to pull the locking element into its closed position are applied by the electric motor and transferred to the locking element via the reduction gear, which means that the gear element that is drivingly engaged with the locking element is also exposed to considerable stresses is to be removed via the bearing pedestal. If, however, the bearing pedestal is reinforced by the reinforcing plate in the manner according to the invention, then this or the bearing pedestal together with the reinforcing plate embedded therein can also reliably absorb the forces transmitted via the gear element without overstressing the bearing pedestal.

According to a further embodiment, the closure element can be rotatably mounted on a first pin which is at least partially received by the bearing base and which extends through the reinforcement plate. In addition or as an alternative to this, the gear element can also be rotatably mounted on a second pin which is at least partially received by the bearing base and which extends through the reinforcement plate. The forces absorbed by the closure element or the gear element are thus introduced directly into the reinforcement plate via the pin in question, from where the forces can then be transmitted to the bearing pedestal and from there to the further housing sections. The essential Stress concentration thus occurs in the area of the reinforcement plate, whereas the bearing pedestal and the further housing sections experience only lower stresses and can therefore be designed in a correspondingly filigree manner.

If the closure element of the closure is completely within the housing, an opening must be provided in the housing through which the locking element can be inserted into the housing for engagement with the closure element. Likewise, an opening must be provided in the housing if the closure element is to be able to extend out of the housing at least in its release position for receiving the locking element. However, since the housing suffers a certain weakening due to such an opening for the closure element, it can be provided according to a further embodiment that this component weakening is at least partially compensated for by the reinforcing plate. For this purpose, it can be provided that the opening opens directly into a housing area above the bearing base, whereby it is provided in particular that the reinforcement plate in the bearing base extends over the housing area into which the opening opens. In other words, the bearing base is also reinforced by the reinforcing plate in the area of the opening for the closure element, so that the component weakening that the housing experiences through the opening can be at least partially compensated for by the reinforcing plate.

In order to be able to hold the reinforcing plate in place in the casting mold during the casting process of the housing, the reinforcing plate can, according to a further embodiment, have several support feet which are bent out of the plate plane of the reinforcing plate so that the reinforcing plate in the casting mold is at a desired location to be able to hold. The support feet are cast into the bearing base as part of the casting process and thus strengthen the non-positive connection between the same and the reinforcement plate.

• 1 eine Draufsicht auf einen erfindungsgemäßen Verschluss gemäß einer Ausführungsform zeigt, wobei sich das Verschlusselement in der Freigabestellung befindet;
• 2 den Verschluss gemäß 1 zeigt, wobei sich jedoch das Verschlusselement in der Blockierstellung befindet;
• 3 einen Längsschnitt durch den erfindungsgemäßen Verschluss zeigt;
• 4 einen Schnitt durch den erfindungsgemäßen Verschluss gemäß der Schnittführung A - A der 3 zeigt; und
• 5 eine perspektivische Explosionsdarstellung des Gehäuses und der Verstärkungsplatte des erfindungsgemäßen Verschlusses zeigt.

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

• 1 shows a plan view of a closure according to the invention according to an embodiment, wherein the closure element is in the release position;
• 2 the closure according to 1 shows, but with the closure element in the blocking position;
• 3 shows a longitudinal section through the closure according to the invention;
• 4th a section through the closure according to the invention according to the section line A - A of 3 shows; and
• 5 shows an exploded perspective view of the housing and the reinforcement plate of the closure according to the invention.

In the following, first with reference to the 1 and 2 on the basic structure of the lock 10 and how it works, before then with reference to the 3 to 5 the inventive reinforcement of the housing is discussed.

The 1 shows a plan view of a closure according to the invention 10 , which has an elongated housing 12th has that the individual components of the closure 10 records. In particular, the housing 12th two opposite and in the longitudinal direction of the housing 12th running side walls 13th on, between which the individual components of the closure described in more detail below 10 are arranged. Like the one in particular 6th can be removed, has the housing 12th has a relatively small width and depth and can thus be in a fitting groove by means of the lock 10 to be secured wing.

As in turn the representation of the 1 can be removed is on the housing 12th a claw-shaped locking element 14th around a pivot axis 15th pivoted. The closure element 14th assigns a recording 16 in the form of a groove open on one side, the width of which is dimensioned such that a cylindrical locking element (not shown) fits into it, which is provided for attachment to the sash of the window or door. In principle, however, it could also be provided that the housing 12th is designed for attachment to the wing and the locking element for attachment to the frame.

At the holding fixture 16 opposite side has the closure element 14th a toothing 17th on which with a toothing 18th that combs on a gear element 19th is formed on the housing 12th around a pivot axis 11 is pivotably mounted. On that of the toothing 18th opposite side forms the gear element 19th a projection, also referred to here as a slide cam 20th whose function will be discussed in more detail below.

Furthermore, the closure 10 one in the longitudinal direction of the same movable locking slide 21st on, the one on the gear element 19th facing side a locking cam 22nd forms, which with the slide cam 20th interacts, as will also be explained in more detail below.

Furthermore, the closure 10 one on the case 12th arranged electric motor 23 on, which is so effective as a drive with the bolt slide 21st is coupled that this depends on the direction of rotation of the motor 23 can move in different directions. The engine drives more precisely 23 a drive spindle 24 a spindle drive 25th on, whereby by the rotation of the drive spindle 24 a spindle nut arranged on it 26th in a manner known per se in the longitudinal direction of the drive spindle 24 is proceeded. On the spindle nut 26th is the bolt slide 21st supported so that this together with the spindle nut 26th depending on the direction of rotation of the drive spindle 24 can be moved in different directions.

For the energy supply of the electric motor 23 has the closure 10 over one under a cover 27 arranged energy storage such as a battery. In addition or as an alternative to this, the closure 10 also via one also under the cover 27 located induction coil have the closure 10 for the energy supply of the electric motor 23 can be inductively coupled to an energy source.

Again 1 in turn can be removed is the bolt slide 21st about two springs 28 on the spindle nut 26th supported so that the bolt slide 21st with fixed spindle nut 26th opposite the same against the spring force of the springs 28 can be deflected. On the other hand, the spindle nut 26th with fixed bolt slide 21st be moved relative to the same. However, there is relative mobility between the spindle nut 26th and bolt slide 21st limited by two stops (not visible) spaced from one another in the axial direction of the drive spindle, so that the bolt slide 21st after reaching the respective stop by the spindle nut 26th can be taken from the same.

The two springs are supported 28 in the embodiment shown here on the one hand on the bolt slide 21st and on the other hand on the spindle nut 26th from; alternatively, however, it is also possible that the springs 28 on the one hand on the bolt slide 21st and on the other hand on a part fixed to the housing.

After now some essential components of the closure according to the invention 10 have been explained, is the mode of operation of the closure according to the invention 10 received.

So shows 1 a position of the lock 10 , in which the closure element 14th in its release position F. is located in which the claw-shaped portion thereof is through an opening 29 in the housing wall 13th extends. In this position, for example, a locking element located on the sash of a window to be secured can be inserted into the holding receptacle 16 slide in, whereupon the closure element 14th with continued closing movement of the sash clockwise in the direction of the 4th shown blocking position B. of the closure element 14th is pivoted.

As the closure element 14th and the gear element 19th over the two gears 17th , 18th mesh with each other, is the gear element 19th pivoted counterclockwise. This pivoting movement of the closure element 14th and the gear element 19th is in the 1 The position shown is therefore possible because the bolt slide 21st in its unlocked position E. which he occupies when he is using the spindle drive 25th in the direction of the electric motor 23 was pulled. In this unlocked position E. can the slide cam 20th of the gear element 19th not with the locking cam 22nd of the bolt slide 21st collide, which is why the closure element 14th can be pivoted freely in the manner described above.

The closure element 14th is by means of a return spring, not shown here, in the direction of its release position F. preloaded, this spring either directly on the closure element 14th or on the gear element 19th and thus indirectly on the closure element 14th can act.

Is the locking element 14th according to the preceding explanations for 1 based on the release position shown F. in the in the 4th Blocked position shown B. has been pivoted, so can by the bolt slide 21st a movement of the closure element 14th back to its release position F. be prevented, as in the 4th is shown. In the 4th the bolt slide is located 21st in its locked position S. in which he is elastic by means of the springs 28 being pushed. In this locked position S. the locking cam engages behind 22nd of the bolt slide 21st the slide cam 20th of the gear element 19th such that a movement of the closure element 14th from his in the 4th shown blocking position B. back to its release position F. is prevented.

In the blocked position B. of the closure element 14th this is angularly oriented in such a way that the sash does not lie close to the frame, so that a certain gap ventilation is still possible. The closure element 14th can, however, based on the release position F. about the blocking position B. be pivoted out into a closed position so as to clamp the sash tightly to the frame.

The bolt slide is used for this 21st starting from the in the 4th shown locking position S. by means of the spindle drive 25th further in the direction of the gear element 19th or the closure element 14th proceed. First the spindle nut 26th in the direction of the bolt slide 21st move until the spindle nut 26th on the bolt slide 21st abuts, so that this with continued movement of the spindle nut 26th from its locked position S. is moved in the direction of its locking position. The sliding cam rides during this movement sequence 20th continue on the sliding surface 31 of the locking cam 22nd on what has the consequence that the gear element 19th is pivoted further counterclockwise. The closure element 14th is thus pivoted clockwise into its closed position, whereby the sash is pulled firmly against the frame.

Because the distance between the point where the sliding surface 31 of the locking cam 22nd with the slide cam 20th is in contact, and the pivot axis 11 of the gear element 19th is greater than the distance between the pivot axis 11 of the gear element 19th and the power transmission point between the teeth 17th , 18th , the gear element acts 19th as a reduction gear. The gear element 19th however, it can equally be replaced by a two-armed lever with lever arms of different lengths.

Regardless of the design of the gear element 19th however, between the same and the closure element 14th transfer significant forces when the sash is pulled against the frame in the manner described above. These forces are at least in part on the housing 12th transmitted, which is why this must be dimensioned accordingly in order to absorb these forces.

For this purpose, the housing forms 12th inside a bearing pedestal 50 off (see 3 ) on which both the closure element 14th as well as the gear element meshing with it 19th is rotatably mounted, these two elements for the sake of clarity in the 3 and 5 however, are not shown.

The case 12th is designed in its entirety as a one-piece zinc die-cast part, with the bearing base 50 during die casting of the housing 12th is formed as an integral part of it. In the bearing pedestal 50 are three through holes 52 , 53 , 54 trained (see 3 ), the through hole 52 serves to receive a pin (not shown) on which the gear element 19th is rotatably mounted, whereas the through hole 53 serves to receive a pin (not shown) on which the closure element 14th is rotatably mounted. The third through hole 54 on the other hand, serves to hold a screw (see 1 ), by means of which the housing 12th can be screwed into the fitting groove of a sash. The on the closure element 14th and the gear element 19th Acting forces are thus on the bearing pedestal via the journal in question 50 transfer.

So that the bearing pedestal 50 Can withstand these forces, it is provided according to the invention that in the bearing pedestal 50 a reinforcement plate 55 is integrated, the reinforcing plate in the embodiment shown here 55 in the bearing pedestal 50 is poured. The reinforcement plate 55 extends over essentially the entire length of the bearing base 50 so that any stresses on the bearing pedestal 50 act, essentially from the reinforcement plate 55 can be included.

Like that 4th and 5 can be easily removed, has the reinforcement plate 55 an irregular lateral border. In particular, the reinforcement plate 55 several bulges and indentations on their side wheels 56 on. This can ensure that the reinforcement plate 55 enters into a form fit with the material of the bearing pedestal, whereby it can be ensured that the composite component consisting of the bearing pedestal 50 and reinforcement plate 55 Can absorb greater forces than if there is no rigid connection between the reinforcement plate 55 and the bearing pedestal 50 were present. On the composite component consisting of a bearing base 50 and reinforcement plate 55 Forces acting are thus on the reinforcement plate 55 and the bearing pedestal 50 distributed according to their stiffness, especially if the reinforcement plate 55 a significantly lower tendency to brittle fracture than the material of the bearing pedestal 50 has the consequence that the reinforcement plate 55 the relevant part of the composite component consisting of reinforcement plate 55 and bearing pedestal 50 absorbs acting forces.

Like that 3 , 4th and 5 can also be removed, has the reinforcement plate 55 three to the through holes 52 , 53 , 54 of the bearing pedestal 50 corresponding holes 57 , 58 , 59 on, through which the pin, not shown here, on which the closure element 14th and the gear element 19th are rotatably mounted, as well as in the 1 Extend the recognizable fastening screw.

Like the one in particular 5 can be removed, the opening opens 29 for the closure element 14th directly into a housing area above the bearing base 50 , i.e. in the area in which the closure element 14th on the bearing pedestal 50 is stored. The reinforcement plate 55 extends over this housing area into which the opening 29 opens, so that the component weakening that the housing 12th through the opening 29 in the side wall 13th of the housing 12th learns through the reinforcement plate 55 can at least partially be compensated.

Again 5 can also be removed, forms the reinforcement plate 55 Two prongs each at the head and foot 60 off, each of these prongs 60 at its free end one out of the plane of the reinforcement plate 55 bent out support leg 61 having. The support feet on the head side 61 and the support feet on the foot side 61 extend in opposite directions, so that the reinforcement plate 55 over the support legs 61 reliably in a mold for the casting process of the housing 12th supported and held in place.

In addition, the reinforcement plate goes 55 with their prongs 60 and the support feet formed thereon 61 an additional form fit with the material of the bearing base 50 a, whereby a particularly shear-resistant power transmission between the reinforcement plate 55 and the bearing pedestal 50 can be ensured.

List of reference symbols

10

Clasp

11

Swivel axis from 19th

12

casing

13

side walls

14th

Closure element

15th

Swivel axis 14th

16

Holding fixture

17th

Toothing of 14th

18th

Toothing of 19th

19th

Gear element

20th

Sliding cam of 19th

21st

Bolt slide

22nd

Slide cam on 21st

23

engine

24

Drive spindle

25th

Spindle drive

26th

Spindle nut

27

cover

28

feathers

29

Opening in the housing wall

30th

(Counter) sliding surface of 20th

31

Sliding surface 22nd

50

Bearing pedestal

52

Through hole

53

Through hole

54

Through hole

55

Reinforcement plate

56

Bulges, indentations

57

hole

58

hole

59

hole

60

Prongs

61

Support feet

E.

Unlocked position

S.

Locked position

F.

Release position

B.

Blocking position

R.

Opening direction

Claims (10)

A closure (10) for a window, a door or the like, the window, the door or the like having a frame and a sash movable relative to the frame, the closure comprising: a housing (12) designed for attachment to the frame or to the wing; a locking element (14) for securing a locking element fastened to the sash or to the frame, the locking element (14) being rotatably mounted in the housing (12) on a bearing base (50) formed by the same; and a reinforcement plate (55) which is positively integrated in the bearing base (50). Closure after Claim 1 , wherein the housing (12) is designed in one piece as a metal casting and the reinforcing plate (55) is cast into the bearing base (50). Closure after Claim 1 or 2 , wherein the reinforcement plate (55) is at least partially bounded irregularly. A closure according to any preceding claim, wherein the housing (12) is made of a first metal material and the reinforcing plate (55) is made of a second metal material, the second metal material being a lesser Has brittle fracture tendency than the first metal material and / or wherein the second metal material has a higher ductility and / or toughness than the first metal material. Closure according to one of the preceding claims, wherein the housing (12) is a die-cast part made of a zinc, aluminum or magnesium alloy and the reinforcement plate (55) is made of steel, in particular of chrome steel, preferably of X14CrMoS17. Closure according to one of the preceding claims, wherein a gear element (19), in particular an at least partially toothed gear or a preferably two-armed lever, is rotatably mounted on the bearing base (50) and is in driving engagement with the closure element (14). Closure according to one of the preceding claims, wherein the closure element (14) is rotatably mounted on a first pin which is at least partially received by the bearing base (50) and which extends through the reinforcement plate (55), and / or wherein the gear element (19) is rotatably mounted on a second pin which is at least partially received by the bearing base (50) and which extends through the reinforcement plate (55). Closure according to one of the preceding claims, wherein the housing (12) has a side wall (13) in which an opening (29) for the closing element (14) is formed, the opening (29) directly into a housing area above the bearing base ( 50) opens, Closure after Claim 8 wherein the reinforcement plate (55) in the bearing pedestal (50) extends beyond the housing area into which the opening (29) opens. Closure according to one of the preceding claims, wherein the reinforcement plate (55) has a plurality of support feet (61) which are bent out of the plate plane of the reinforcement plate (55) and which are cast into the bearing socket (50).

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