WO2021001372A1

WO2021001372A1 - Closure with a reinforced housing for a window, a door, or the like

Info

Publication number: WO2021001372A1
Application number: PCT/EP2020/068408
Authority: WO
Inventors: Gregor SCHORNSTEINER; Josef Hölzl
Original assignee: Maco Technologie Gmbh
Priority date: 2019-07-02
Filing date: 2020-06-30
Publication date: 2021-01-07
Also published as: DE102019117867A1; EP3963151B1; CN114096727A; EP3963151A1; CN114096727B; PL3963151T3

Abstract

The invention relates to a closure for a window, a door, or the like, wherein the window, the door, or the like has a frame and a leaf which can be moved relative to the frame. The closure comprises a housing, which is designed to be secured to a frame or to a leaf, and a closure element for securing a locking element secured to the leaf or the frame, and the closure element is rotatably mounted in the housing on a bearing socket formed by the housing. According to the invention, a reinforcement panel is integrated into the bearing socket in a formfitting manner.

Description

CLOSURE WITH A REINFORCED HOUSING FOR A WINDOW,

A DOOR OR THE SAME

The present invention relates to a closure with a reinforced Gehäu se for a window, a door or the like, the window, the door or the like having a frame and a wing movable relative to the frame.

The housing is used to attach to the frame or sash and to take on 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, a door, a 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 closure for receiving and fastening in a fitting groove of the frame or of the sash can be designed to 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 formed out as a mushroom pin.

When the lock is installed, the latch element attached to the sash or frame enters the holding receptacle of the closure element in the course of a closing movement of the sash, so that the closure element is pushed into its blocking position by the locking element in the course of the closing movement of the sash The locking mechanism is secured in such a way that the locking 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 on the frame due to the engagement of the locking element in the holding receptacle of the closure element and against this or a seal provided thereon can be clamped firmly. So is the wing in the blocking position of the closure element secured with play on the frame, which allows a certain gap ventilation, the sash, on the other hand, in the closed position of the closure element is firmly clamped to the frame or a seal provided along the same ben, as is for safety reasons or may be desirable in favor of thermal protection. 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 it, 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 same 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 Housing or is mounted on its bearing base. In order to prevent overstressing of the bearing base, it is reinforced in the manner according to the invention by a reinforcing or stiffening plate which is integrated into the bearing base 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 acts together with the reinforcement plate fitted in it in the event of a 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 locking 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.

According to a preferred embodiment, it can be provided that the housing is designed in one piece as a metal casting, in particular as a metallic die-cast part, the reinforcing plate being cast into the bearing socket as part of the casting process, preferably completely. There can therefore be no relative movement between the reinforcement plate and the bearing pedestal. Rather, the bearing base 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 base, which means that the reinforcement plate absorbs most of the forces to be transmitted due to its greater rigidity.

According to a further embodiment, the reinforcement plate can have irregular borders 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 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 together with the reinforcing plate as a composite component.

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 brittle tendency to fracture, since the forces to be transmitted via the closure are significantly absorbed by the reinforcement plate. If, for example, zinc, aluminum or magnesium alloys come into question for the housing, the reinforcement plate should be made of a metal material with a lower tendency to brittle or higher ductility, such as chrome steel, especially 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. In this way, the forces that are required to selement into its closed position, applied by the electric motor and transferred to the locking element via the reduction gear, which means that the gear element that is in driving engagement with the locking element is also exposed to considerable stresses that have to be removed via the bearing base. If, however, the bearing base is reinforced by the reinforcement plate in the manner according to the invention, then this or the bearing base, together with the reinforcement plate embedded therein, can also reliably absorb the forces transmitted via the transmission element without overstressing the bearing base .

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 transmission element are thus introduced directly into the reinforcement plate via the pin in question, from where the forces can then be transferred to the bearing base 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 other 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 at least in its release point. ment should be able to extend out of the housing 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 reinforcement plate. For this purpose, it can be provided that the opening opens directly into a housing area above the bearing socket, it being provided in particular that the reinforcement plate in the bearing socket extends over the housing area into which the opening opens. In other words, the bearing base is also reinforced in the area of the opening for the closure element by the reinforcing plate, 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 as to attach the reinforcing plate in the casting mold to be able to hold the desired position. The support feet are poured into the bearing base as part of the casting process and thus strengthen the positive connection between the same and the reinforcement plate.

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 one embodiment, the closure element being in the release position; Fig. 2 shows the closure according to Fig. 1, but the

The locking element is in the blocking position;

Fig. 3 shows a longitudinal section through the closure according to the invention;

FIG. 4 shows a section through the closure according to the invention according to the section line A - A of FIG. 3; and

Fig. 5 shows an exploded perspective view of the housing and the reinforcing plate of the closure according to the invention.

In the following, with reference to FIGS. 1 and 2, the basic structure of the closure 10 and its mode of operation is entered, before the reinforcement of the housing according to the invention is discussed with reference to FIGS. 3 to 5.

Fig. 1 shows a plan view of a closure 10 according to the invention, wel cher has an elongated housing 12 which receives the individual components of the closure 10. In particular, the housing 12 has two one on the opposite and extending in the longitudinal direction of the housing 12 Be ten walls 13, between which the individual components of the closure 10, which are described in more detail below, are arranged. As can be seen in particular from FIG. 6, the housing 12 has a relatively moderately small width and overall depth and can thus be mounted in a fitting groove of a wing to be secured by means of the lock 10. As can again be seen from the illustration in FIG. 1, a claw-shaped closure element 14 is mounted on the housing 12 so as to be pivotable about a pivot axis 15. The closure element 14 has a receptacle 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 fastening to the sash of the window or door. In principle, however, it could also be provided that the housing 12 is designed for attachment to the sash and the locking element for attachment to the frame.

On the side opposite the fold receptacle 16, the closure element 14 has a toothing 17 which meshes with a toothing 18 which is formed on a gear element 19 which is pivotably mounted on the housing 12 about a pivot axis 11. On the side opposite the toothing 18, the gear element 19 forms a projection 20, also referred to here as a slide cam, the function of which will be discussed in greater detail below.

Furthermore, the lock 10 has a locking slide 21 which can be moved in the longitudinal direction of the same and which forms a locking cam 22 on the side facing the gear element 19, which interacts with the sliding cam 20, as will also be explained in more detail below.

Furthermore, the lock 10 has an electric motor 23 arranged on the housing 12, which is coupled with the locking slide 21 in such a way that it can be driven in such a way that it can move in different directions depending on the direction of rotation of the motor 23. More precisely, the motor 23 drives a drive spindle 24 of a spindle drive 25, the drive spindle 24 being moved in a known manner in the longitudinal direction of the drive spindle 24 by the rotation of the drive spindle 24 egg ne arranged thereon. The locking slide 21 is supported on the spindle nut 26, so that this together with the spindle nut 26 depending on the direction of rotation of the drive spindle 24 can be moved in different directions ver.

To supply energy to the electric motor 23, the closure 10 has an energy store, such as a battery, arranged under a cover 27. In addition or as an alternative to this, the closure 10 can also have an induction coil which is also located under the cover 27 and via which the closure 10 can be inductively coupled to an energy source to supply the electric motor 23 with energy.

As can be seen from FIG. 1, the locking slide 21 is supported on the spindle nut 26 via two springs 28, so that the locking slide 21 can be deflected against the spring force of the springs 28 with the spindle nut 26 stationary. On the other hand, the spindle nut 26 can be moved relative to the same when the locking slide 21 is stationary. However, the relative mobility between spindle nut 26 and bolt slide 21 is limited by two stops (not visible) spaced apart in the axial direction of the drive spindle, so that the bolt slide 21 can be taken along by the spindle nut 26 after reaching the respective stop.

In the embodiment shown here, the two springs 28 are supported on the one hand on the locking slide 21 and on the other hand on the spindle nut 26; alternatively, however, it is also possible for the springs 28 to be supported on the one hand on the locking slide 21 and on the other hand on a part fixed to the housing.

Now that some essential components of the closure 10 according to the invention have been explained previously, the mode of operation of the closure 10 according to the invention will be discussed below. 1 shows a position of the closure 10 in which the closure element 14 is in its release position F, in which the claw-shaped section extends through an opening 29 in the housing wall 13. In this position, for example, a locking element located on the sash of a window to be secured can slide into the folding receptacle 16, whereupon the locking element 14 is pivoted in the direction of the locking position B of the locking element 14 shown in FIG. 4 with continued closing movement of the sash in the clockwise direction.

Since the closure element 14 and the gear element 19 mesh with one another via the two tooth systems 17, 18, the gear element 19 is pivoted counterclockwise. This pivoting movement of the locking element 14 and the gear element 19 is possible in the position shown in FIG. 1 because the locking slide 21 is in its unlocked position E, which it assumes when it is pulled in the direction of the electric motor 23 by means of the spindle drive 25 has been. In this unlocked position E, the sliding cam 20 of the gear element 19 cannot collide with the locking cam 22 of the locking slide 21, which is why the locking element 14 can be freely pivoted in the manner described above.

The closure element 14 is pretensioned in the direction of its release position F by means of a return spring (not shown here), this spring being able to act either directly on the closure element 14 or on the gear element 19 and thus indirectly on the closure element 14.

If the closure element 14 has been pivoted from the illustrated release position F into the blocking position B illustrated in FIG. 4 in accordance with the above explanations regarding FIG. 1, the locking element 21 can move the closure element 14 back into its release position. Position F can be prevented, as shown in FIG. In Fig. 4, the locking slide 21 is in its locking pitch S, into which it is pushed elas by means of the springs 28 table. In this locking pitch S, the locking cam 22 of the locking slide 21 engages behind the sliding cam 20 of the Getriebele element 19 in such a way that a movement of the locking element 14 from its blocking position B shown in FIG. 4 back into its release position F is prevented.

In the blocking position B of the closure element 14, this is angularly oriented such that the sash does not lie tightly against the frame, so that a certain gap ventilation is still possible. The closure element 14 can, however, starting from the release position F via the blocking position B into a

Can be pivoted closed position so as to clamp the sash tightly with the frame.

For this purpose, the locking slide 21, starting from the locking graduation S shown in FIG. 4, is moved by means of the spindle drive 25 further in the direction of the transmission element 19 or the closure element 14. First, the spindle nut 26 is moved in the direction of the bolt slide 21 until the spindle nut 26 abuts the bolt slide 21, so that it is moved with continued Be movement of the spindle nut 26 from its locking pitch S in the direction of its United locking position. During this movement sequence, the slide cam 20 rides on the sliding surface 31 of the locking cam 22, with the result that the gear element 19 is pivoted further counterclockwise ver. The closure element 14 is thus pivoted clockwise into its closed position, whereby the sash is pulled firmly against the frame.

Since the distance between the point at which the sliding surface 31 of the locking cam 22 is in contact with the sliding cam 20 and the pivot axis 11 of the device drive element 19 is greater than the distance between the pivot axis 11 of the gear element 19 and the power transmission point between the Verzahnun gene 17, 18, the gear element 19 acts as a reduction gear. The gearbox element 19 can, however, equally be replaced by a two-armed lever with lever arms of different lengths.

Regardless of the design of the gear element 19, however, not inconsiderable forces are transmitted between the same and the closure element 14 when the sash is pulled against the frame in the manner described above. These forces are at least partially transmitted to the housing 12, which is why it must be dimensioned accordingly in order to be able to absorb these forces.

For this purpose, the housing 12 forms a bearing base 50 in its interior (see FIG. 3) on which both the closure element 14 and the gear element 19 meshing with it are rotatably mounted, these two elements in FIGS. 3 and 5 for the sake of clarity however, are not shown.

The housing 12 is designed in its entirety as a one-piece zinc die-cast part, the bearing base 50 being formed as an integral part of the same during the die-casting of the housing 12. In the bearing pedestal 50 three through bores 52, 53, 54 are formed (see Fig. 3), the through hole 52 for receiving a pin (not shown) on which the gear element 19 is rotatably mounted, whereas the Durchgangsboh tion 53 for Receiving a pin (not shown) is used on which the locking element 14 is rotatably mounted. The third through hole 54, on the other hand, serves to receive a screw (see FIG. 1 in this regard), by means of which the housing 12 can be screwed into the fitting groove of a wing. The forces acting on the closure element 14 and the gear element 19 are thus transmitted to the bearing base 50 via the journals in question. So that the bearing base 50 can withstand these forces, it is provided according to the invention that a reinforcing plate 55 is integrated into the bearing base 50, the reinforcing plate 55 being cast into the bearing base 50 in the embodiment shown here. The reinforcement plate 55 extends over essentially the entire length of the bearing pedestal 50 so that any stresses acting on the bearing pedestal 50 can essentially be absorbed by the reinforcing plate 55.

As can be seen from FIGS. 4 and 5 without further ado, the reinforcement plate 55 has an irregular lateral border. In particular, the reinforcement plate 55 has several bulges and indentations 56 on its side wheels. This can ensure that the reinforcement plate 55 enters into a form fit with the material of the bearing base, whereby it can be ensured that the composite component consisting of the bearing base 50 and reinforcement plate 55 can absorb greater forces than if there was no shear-resistant connection between the reinforcement plate 55 and the Bearing base 50 were available. Forces acting on the composite component consisting of the bearing base 50 and reinforcement plate 55 are thus distributed to the reinforcement plate 55 and the bearing base 50 according to their stiffness, which is particularly the case when the reinforcement plate 55 has a significantly lower tendency to brittle fracture than the material of the bearing base 50 has that the reinforcement plate 55 absorbs the relevant part of the forces acting on the composite component consisting of reinforcement plate 55 and bearing base 50.

3, 4 and 5 can also be seen, the reinforcement plate 55 has three to the through bores 52, 53, 54 of the bearing base 50 kor responding holes 57, 58, 59 through which the pin, not shown here, on which the closure element 14 and the gear element 19 are rotatable are stored, and extend the mounting screw recognizable in Fig. 1 therethrough.

As can be seen in particular from FIG. 5, the opening 29 for the closure element 14 opens directly into a housing area above the bearing base 50, that is, in the area in which the closure element 14 is mounted on the bearing base 50. The reinforcement plate 55 extends over this housing area into which the opening 29 opens, so that the component weakening that the housing 12 experiences through the opening 29 in the side wall 13 of the housing 12 is at least partially compensated by the reinforcement plate 55 can be.

As can also be seen from FIG. 5, the reinforcement plate 55 forms two prongs 60 on the head and foot sides, each of these prongs 60 having a support leg 61 bent out of the plane of the reinforcement plate 55 at its free end. The head-side support feet 61 and the foot-side support feet 61 extend in opposite directions, so that the reinforcement plate 55 can be reliably supported in a casting mold for the casting process of the housing 12 via the support feet 61 and can be held in place.

In addition, the reinforcement plate 55 with its prongs 60 and the support feet 61 formed thereon forms an additional form fit with the material of the bearing base 50, which ensures a particularly shear-resistant force transmission between the reinforcement plate 55 and the bearing base 50. List of reference symbols

10 clasp

1 1 swivel axis from 19

12 housing

13 side walls

14 closure element

15 swivel axis 14

16 Holding fixture

17 toothing of 14

18 toothing of 19

19 gear element

20 sliding cams from 19

21 bolt slide

22 sliding cams on 21

23 engine

24 drive spindle

25 spindle drive

26 spindle nut

27 cover

28 springs

29 Opening in the housing wall

30 (counter) sliding surface of 20

31 sliding surface 22

50 bearing pedestals

52 through hole

53 through hole

54 through hole 55 reinforcement plate

56 bulges, indentations

57 holes

58 holes

59 holes

60 tines

61 support feet

E unlocked position

S barrier division

F Release position

B blocking position R opening direction

Claims

Expectations

1. 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 with respect to the frame, the closure comprising: a Ge designed for attachment to the frame or sash housing (12);

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).

2. Closure according to claim 1,

wherein the housing (12) is designed in one piece as a metal casting and the reinforcement plate (55) is cast into the bearing base (50).

3. Closure according to claim 1 or 2,

wherein the reinforcement plate (55) is at least partially bounded irregularly.

4. Closure according to one of the preceding claims,

wherein the housing (12) is made of a first metal material and the reinforcement plate (55) is made of a second metal material, the second metal material having a lower tendency to brittle fracture than the first metal material and / or the second metal material having a higher ductility and / or Having toughness as the first metal material.

5. 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 made of

X14CrMoS17.

6. 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).

7. Closure according to one of the preceding claims,

wherein the closure element (14) is rotatably supported 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).

8. Closure according to one of the preceding claims,

wherein the housing (12) has a side wall (13) in which an opening (29) for the closure element (14) is formed, the opening (29) opening directly into a housing area above the bearing base (50),

9. Closure according to claim 8,

wherein the reinforcement plate (55) in the bearing base (50) extends over the housing area into which the opening (29) opens.

10. 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 plane of the plate of the reinforcement plate (55) and which are cast into the bearing pedestal (50).