Mounting bracket for a door operator

Abstract

The invention relates to a mounting bracket (1) for a door operator (102), comprising a first mounting element (3) and a second mounting element (4), one of the two mounting elements (3) being configured for fixing to a mounting surface (101), in particular a door, a door frame or a wall, and the other mounting element (4) being configured for receiving the door operator (102); at least one connecting device (5) having a latch element (14) movably arranged on the first mounting element (3) and a thermally activatable trigger element (15), the latch element (14) being movable from a holding position to a release position, the latch element (14) holding the second mounting element (4) in the holding position and releasing the second mounting element (4) in the release position, the trigger element (15) releasing the movement of the latch element (14) to the release position upon thermal activation and / or the trigger element (15) causing the latch element (14) to move to the release position upon thermal activation.

Description

Technical Field

[0001] The present invention relates to a mounting bracket for a door operator. Background Art

[0002] A door operator is used to close and / or open a door. A door closer and a door drive are particularly referred to as door operators. In a door closer, a spring-loaded energy storage device is usually loaded by a manual opening movement. The energy stored therein is used to close the door. In a door drive, for example, a door can be independently opened and / or closed by means of an electric motor system or a hydraulic system. A door operator is usually fixed to a door leaf or a door frame or a wall. In order to fix the door operator, a mounting plate is mostly used. The mounting plate is fixed to its mounting surface, that is, fixed to the door, the door frame or the wall. The door operator is in turn fixed to the mounting plate.

[0003] Especially in the case of a fire door, it should be noted that combustible fluids, especially hydraulic oil, are often used in a door operator. By appropriate measures, it should be avoided as much as possible that the fluid in the door operator is overheated too strongly in a fire situation and may catch fire. Summary of the Invention

[0004] The object of the present invention is to provide a mounting bracket for a door operator, which mounting bracket enables a safe fixing of the door operator and at the same time meets safety-related requirements, especially for a fire situation.

[0005] The above object is achieved by a mounting bracket for a door operator according to the present invention. The following are advantageous design solutions of the present invention.

[0006] The present invention describes a mounting bracket, which safety bracket is used to fix a door operator instead of a traditional mounting plate. The mounting bracket has a first mounting element and at least one second mounting element. The mounting elements are connected to each other via at least one connecting device. In a corresponding heat load, the connecting device disengages, so that the two mounting elements are separated from each other. Thereby, the door operator is disengaged from the mounting surface, that is, from the door, the door frame or the wall. Herein, it is especially considered that the door operator is located on the side of the door away from the fire. By separating the door operator from its mounting surface, overheating of the door operator is avoided, thereby avoiding ignition of the fluid in the door operator.

[0007] A mounting axis is defined on the mounting bracket for describing directions. The mounting axis is, for example, parallel to a screw used to screw the mounting bracket onto the mounting surface. According to an alternative definition, the mounting axis is perpendicular to the output axis of the door operator. According to another alternative definition, the mounting axis is perpendicular to the mounting surface, that is, perpendicular to the surface of the door, the door frame or the wall.

[0008] As already described, the mounting bracket includes a first mounting element and at least one second mounting element. According to one embodiment described herein, the two mounting elements are plates or plate-like elements that are abutted against each other to form the mounting bracket. However, according to a second embodiment, a plurality of second mounting elements are used, in particular second mounting elements in the form of sleeves that are inserted into the first mounting element. For the sake of clarity, the second mounting element is generally described in the singular form. However, it is always also disclosed herein that a plurality of second mounting elements with corresponding design solutions can be used.

[0009] In particular, it is proposed that the first mounting element is fixed, in particular screwed, to the mounting surface by its back surface. The mounting surface is formed by a door, a frame or a wall. Correspondingly, the second mounting element is connected to the door operator. The second mounting element particularly has a front surface to which the door operator is fixed, in particular screwed. Preferably, the second mounting element is an independent component to which the door operator is fixed. However, alternatively, the second mounting element can also be an integral part of the door operator.

[0010] Furthermore, the opposite design is also feasible, according to which the first mounting element is configured to accommodate the door operator and the second mounting element is fixed to the mounting surface.

[0011] The mounting bracket includes at least one connecting device. In particular, one, two, three, four or five such connecting arrangements are provided.

[0012] A single connecting device includes at least one latch element. The latch element is movably arranged on the first mounting element. In particular, the latch element is linearly movably arranged relative to the first mounting element. The first mounting element is particularly configured as a plate and, correspondingly, has a plate plane perpendicular to the mounting axis. In order to achieve as thin a construction as possible of the mounting bracket, it is in particular proposed that the latch element moves parallel to the plane of the plate and thus perpendicular to the mounting axis.

[0013] Furthermore, the connecting device includes at least one triggering element. The triggering element is thermally activatable; in particular in the temperature range from 90 °C to 200 °C. "Activating the triggering element" is synonymous with "triggering the triggering element". For example, the triggering element is a glass ampoule filled with fluid, as is known from automatic fire extinguishing facilities. The triggering element is configured such that it triggers at the corresponding temperature, which is measured to prevent the uncontrolled escape of fluid from the door operator.

[0014] The latch element can be moved from its holding position to the release position. In the basic state, that is, when the triggering element has not been triggered, the latch element is in its holding position and holds the second mounting element there. If there are multiple second mounting elements, in particular sleeves, the latch element can also hold multiple second mounting elements. In the release position, the latch element releases the second mounting element so that the two mounting elements (the first and the second mounting elements) can be disengaged from each other. Thereby, the door operator is disengaged from the mounting surface, in particular the door, frame or wall.

[0015] The triggering element is configured to release the movement of the latch element to its release position upon thermal activation. In particular, it is proposed here that the triggering element only releases the movement and does not exert any force on the latch element to move the latch element. After the release by the triggering element, the latch element can then move to its release position under the action of gravity and / or by means of a so-called "driving element".

[0016] However, in an alternative design, it is also feasible that the triggering element moves the latch element to the release position upon thermal activation. This is particularly feasible in such a way that the triggering element includes a thermally expandable material. This thermally expandable material expands when heated accordingly. This expansion of the material can be used to move the latch element in the desired direction. In this design, the latch element is preferably locked in its holding position via a mechanical blocking element. This mechanical blocking element is detachable such that when the triggering element moves the latch element to, in particular, press it into the release position in the case of thermal activation, the mechanical blocking element detaches. For detachability, the blocking element can in particular be deformable and / or destructible and / or detachable in some other way under tension or pressure.

[0017] However, a particularly preferred variant, which will be described below, is one in which the triggering element only releases the latch element and the movement of the latch element takes place in some other way, in particular under the action of gravity and / or by means of a driving element.

[0018] In a preferred embodiment, it is proposed that the triggering element is arranged, in particular clamped, between the latch element and the first mounting element in order to block the movement of the latch element to the release position. For this purpose, in particular, it is proposed that the triggering element is destructible and / or deformable and / or meltable in the presence of a thermal load.

[0019] An exemplary design of the triggering element is the above-mentioned glass ampoule. Another example is a fusible alloy or a correspondingly fusible or thermally deformable plastic.

[0020] Preferably, the triggering element is clamped between the first mounting element and the latch element by means of a compensation spring. This compensation spring avoids excessive clamping or undesired destruction of the triggering element.

[0021] Preferably, a screw is provided by means of which the trigger element can be tensioned against the compensation spring.

[0022] The latch element is preferably arranged in a cut-out of the first mounting element. Preferably, the cut-out for receiving the latch element is at least partially designed in a bag-like manner and is closed on one of the two sides perpendicular to the mounting axis.

[0023] The latch element and the second mounting element preferably engage with one another in a form-fitting manner in its holding position. When the second mounting element is designed as a plate, it is preferably provided that the second mounting element has a plate body and at least one form-fitting element extends from the plate body towards the mounting surface. The form-fitting element is preferably arranged in a corresponding cut-out in the first mounting element designed as a plate. In the holding position, the latch element preferably engages in the associated form-fitting element.

[0024] When using a plurality of second mounting elements configured, for example, as sleeves, it is preferably provided that the second mounting elements have a groove on their outer circumference. The fork-shaped section of the latch element can engage in this groove so as to protect the second mounting element from falling out. In addition, the outer circumference in the groove can be non-circular, in particular can have multiple edges, so that the fork-shaped section of the latch element can also lock the sleeve against torsion.

[0025] In a preferred embodiment, it is provided that the connecting device includes the drive element mentioned above. The drive element particularly includes a thermally expandable material and / or a spring. The drive element is configured to move the latch element into the release position. Thus, the drive element particularly moves the latch element in a direction perpendicular to the mounting axis.

[0026] Once the trigger element has been triggered, the blocking of the latch element is cancelled. Thereby, the drive element, possibly by means of a thermally expandable material and / or a spring, moves the latch element into the release position.

[0027] The drive element is preferably arranged in a cut-out in the first mounting element and / or in a cut-out in the second mounting element. In order to use a drive element as large as possible, in particular a drive element having a thermally expandable material, it is preferably provided that the two cut-outs in the two mounting elements are aligned with one another so that the drive element can be arranged in the two mounting elements designed as plates. Here, it is then also preferably provided that the latch element extends into the cut-out of the second mounting element so that the drive element can act on the latch element over as large a surface as possible.

[0028] Furthermore, a separating element is preferably provided. The separating element can likewise include a thermally expandable material and / or a spring. The separating element is arranged to press the two mounting elements apart from each other. The separating element essentially performs a movement parallel to the mounting axis. The separating element can act directly on the two mounting elements here and press them apart from each other. However, it is also feasible for the separating element on the back side to be supported directly against the mounting surface. Similarly, the separating element on the front side can be supported directly against the door operator. The essential function of the separating element is that, after the movement of the latch element, the door operator moves away from the mounting surface.

[0029] For a compact construction, it is preferably proposed that the separating element is located in a cutout of the first mounting element and / or in a cutout of the second mounting element.

[0030] Furthermore, it is preferably proposed that a thermally expandable material is used for the separating element, which thermally expandable material is triggered only at a higher temperature compared to the thermally expandable material used in the drive element.

[0031] As already described, it is preferably proposed that the first mounting element is configured as a plate. In a preferred embodiment, the second mounting element is also configured as a plate. The two plates each have inner faces that abut against each other. The first mounting element forms a back face that abuts against the mounting surface, in particular against a door, a frame or a wall. The second mounting element forms a front face on which the door operator is fixed.

[0032] As an alternative to the design of the second mounting element as a plate, it is preferably proposed that a plurality of second mounting elements are provided. The plurality of second mounting elements are preferably each configured as a sleeve. The sleeve preferably has an internal thread. The door operator can be screwed onto the second mounting element via this internal thread.

[0033] As an alternative to the design as a sleeve, the second mounting element can also be configured, for example, as a threaded pin that projects from the first mounting element.

[0034] Regardless of whether the second mounting element is configured as a plate, the mounting bracket preferably has a thickness of at most 60 mm, in particular at most 40 mm. With this relatively thin design, an appearance similar to that of a normal mounting plate is produced. In particular, the thickness is measured from the back face to the front face. Any positioning projections or other elements onto which the door operator is plugged are not considered here.

[0035] The invention also includes a device that includes the described mounting bracket and a door operator. The door operator is fixed in particular to the second mounting element or the plurality of second mounting elements. Preferably, the mounting bracket is fixed to the mounting surface, in particular to a door, a frame or a wall. Description of the Drawings

[0036] The invention will now be described in detail based on embodiments. It is shown here:

[0037] Figure 1 Shows a device according to the present invention, the device having a mounting bracket according to a first embodiment of the present invention,

[0038] Figure 2 Shows the back side of the mounting bracket according to the present invention according to the first embodiment,

[0039] Figure 3 Shows the inner surface of the second mounting element of the mounting bracket according to the present invention according to the first embodiment,

[0040] Figure 4 Shows the inner surface of the first mounting element of the mounting bracket according to the present invention according to the first embodiment,

[0041] Figure 5 Shows in Figure 2 section A-A shown,

[0042] Figure 6 Shows in Figure 2 section B-B shown,

[0043] Figure 7 Shows a schematic view of the mounting bracket according to the present invention according to the first embodiment when the door operator is separated;

[0044] Figure 8 Shows the back side of the mounting bracket according to the present invention according to the second embodiment,

[0045] Figure 9 Shows in Figure 8 section C-C shown,

[0046] Figure 10 Shows another cross-sectional view of the mounting bracket according to the present invention according to the second embodiment,

[0047] Figure 11 Shows in Figure 8 section D-D shown,

[0048] Figure 12 Shows a first variant regarding the second embodiment,

[0049] Figure 13 Shows a second variant regarding the second embodiment. Detailed description of the specific implementation

[0050] The device 100 and the mounting bracket 1 are described in detail below with reference to the drawings. Figures 1 to 7 Shows a design according to the first embodiment. Figures 8 to 13 Shows a second embodiment of the mounting bracket 1.

[0051] ReferenceFigures 1 to 7 To describe the first embodiment. Figure 1 The mounting surface 101 of the device 100 is shown purely schematically. The mounting surface 101 is formed, for example, by a door, a frame or a wall. A mounting axis 2 is defined perpendicular to the mounting surface 101. The mounting bracket 1 is fixed to the mounting surface 101. The door operator 102 is in turn mounted on the mounting bracket 1. The door operator 102, which is configured here as a door closer, has an output shaft 103. The output axis 103 is perpendicular to the mounting axis 2. The mounting axis 2 is perpendicular to the mounting surface 101.

[0052] The mounting bracket 1 includes a first mounting element 3 and a second mounting element 4. The first mounting element 3 abuts against the mounting surface 101 via its back surface 6. The two inner surfaces 7 of the two mounting elements 3, 4 abut against each other. The front surface 8 of the second mounting element 4 is used to accommodate the door operator 102.

[0053] Figure 2 Showing the back surface 6 of the mounting bracket 1, Figure 3 Showing the inner surface 7 of the second mounting element 4, Figure 4 Showing the inner surface 7 of the first mounting element 3. Figure 5 Showing in Figure 2 the sectional view A-A shown in, while Figure 6 showing in Figure 2 the sectional view B-B shown in. Figure 7 Showing a schematic view of the mounting bracket 1 when the door operator 102 is separated.

[0054] The two mounting elements 3, 4 are each configured in a plate shape and perpendicular to the mounting axis 2. The two mounting elements 3, 4 are connected to each other via three connecting devices 5.

[0055] The second mounting element 4, for example according to Figure 3 the view in, has a plate body 9. A plurality of form-fitting elements 10 extend from the plate body 9 towards the first mounting element 3.

[0056] In addition, the plate body 9 has a plurality of first cutouts 11. The first cutouts 11 are through cutouts.

[0057] In addition, the plate body 9 has a plurality of second cutouts 12 configured as pockets. The second cutouts 12 are open at the inner surface 7.

[0058] The plate body 9 of the second mounting element 4 and the first mounting element 3 include a plurality of mounting openings 13. The mounting openings 13 are through voids, in particular through holes, which extend through the two mounting elements 3, 4 in alignment. When the mounting bracket is installed, the two mounting elements 3, 4 are already connected to each other, in particular. Screws for fixing to the mounting surface 101 pass through the two mounting elements 3, 4 from the front side 8. The mounting openings 13 in the second mounting element 4 are correspondingly large and serve as tool openings, such that only the first mounting element 3 is fixed to the mounting surface 101 by means of the screws.

[0059] Each single connecting device 5 includes a latching element 14. In the illustrated embodiment, the single latching element 14 is configured in a U-shape. The latching element 14 is located in a third void 18 in the plate-shaped first mounting element 3. In this third void 18, the latching element 14 can move linearly perpendicular to the mounting axis 2.

[0060] For example, Figure 2 shows the latching element 14 in its holding position. Here, the latching element 14 engages form-fittingly into a form-fitting element 10 of the second mounting element 4.

[0061] In each connecting device 5, a triggering element 15 is provided. The triggering element 15 is configured as a glass ampoule here. The triggering element 15 holds the respective latching element 14 in the upper holding position. In addition, for each connecting device 5, a drive element 16 is present in the third void 18. The respective drive element 16 is arranged between the latching element 14 and the first mounting element 3. The drive element 16 is formed of a thermally expandable material here.

[0062] As shown, for example, in Figure 6 the cross-sectional view, the third void 18 in the first mounting element 3 continues into a first void 11 in the second mounting element 4. Thereby, the latching element 14 and the drive element 16 can extend into the two voids 18, 11.

[0063] Likewise, Figure 6 the cross-sectional view in shows that the triggering element 15 is tensioned against a compensation spring 20 by means of an adjusting screw 19. Thereby, the triggering element 15 is clamped between the latching element 14 and the first mounting element 3.

[0064] In a second void 12 of the second mounting element 4, a separating element 17 is present (see Figure 4 ), which is also configured as a thermally expandable material here.

[0065] In a corresponding thermal load, the triggering element 15 is destroyed. In addition, the drive element 16 expands due to the thermal effect and presses the latching element 14 downwards here. The form fit between the two mounting elements 3, 4 is disengaged. AsFigure 7 As schematically shown, the separating element 17 expands in the next step and thereby presses the two mounting elements 3, 4 apart from each other in a direction parallel to the mounting axis 2. This causes the door operator 102 to separate from the mounting surface 101.

[0066] Regarding the second embodiment, Figure 8 The back side 6 of the mounting bracket 1 is shown. Figure 9 Shown in Figure 8 is the sectional view C-C represented in Figure 10 Another sectional view of a section parallel to the Figure 8 plane of the drawing is shown. Figure 11 Shown in Figure 8 is the sectional view D-D represented in Figure 12 and 13 show a variant of the second embodiment.

[0067] In the second embodiment, the latch element 14 does not move from top to bottom but moves in the horizontal direction. Figure 8 Regarding this, the back side 6 of the mounting bracket 1 is shown. The holding element 14 is in the holding position. The second mounting element 4 is not configured as a plate. Rather, a plurality of second mounting elements 4 are used here, six in a specific example. Each second mounting element 4 is configured as a sleeve having an internal thread 30. These sleeves are inserted into the plate-shaped first mounting element 3. In the view according to Figure 8 the upper right second mounting element 4 is obscured.

[0068] The second mounting element 4 configured as a sleeve has a groove which preferably has a non-circular cross-section. This area serves as the form-fitting element 10. Correspondingly, the forked area of the latch element 14 engages into the form-fitting element 10. Thereby, the second mounting element 4 is protected against distortion and falling out.

[0069] The door operator 102 is connected directly or via another plate-shaped element to the sleeve-shaped second mounting element 4, in particular screwed. If the second mounting element 4 becomes detached from the first mounting element 3, then the door operator 102 also falls off.

[0070] As, for example, explained in Figure 10 in the second embodiment, the triggering element 15 is also supported between the latch element 14 and the first mounting element 3. For this purpose, an adjusting screw 19 is again provided, which enables the triggering element 15 to be tensioned towards the compensation spring 20.

[0071] The drive element 16 is in turn formed from a thermally expandable material and, in the corresponding thermal load and the resulting expansion, presses the latch element 14 into its release position.

[0072] Figure 11 Shows the setting of the separating element 17 in the corresponding cutouts in the first mounting element 3. By means of this separating element 17, the door operator 102 is directly pressed away from the first mounting element 3.

[0073] The cross-sectional views in these two embodiments show the thickness 22 of the mounting bracket 1 defined parallel to the mounting axis 2. Any positioning projections 21 on which the door operator 102 is inserted are not considered when observing the thickness 22.

[0074] Figure 12 Shows a variant of the design of the connecting device 5 in the second embodiment. Here, instead of the rigid latch element 14, a latch element 14 is used which has two levers 31 rotatably supported relative to one another. Figure 12 It is shown schematically that when the trigger element 15 is triggered via the corresponding drive element 16, the pivot point between these two levers 31 can move, whereby the latch element 14 moves into its release position - the fork-shaped sections of these two levers 31 disengage from the second mounting element 4.

[0075] Figure 13 Shows another schematically shown variant of the second embodiment. Here, the latch element 14 is again formed by two levers 31 rotatable relative to one another. The axes of rotation of these two levers 31 are fixed in position. On one side of the axis of rotation, these two levers 31 are connected via the trigger element 15. If the trigger element 15 no longer holds these two ends of these two levers 31 at a certain distance, then on the opposite side of the axis of rotation, the drive element 16, which is designed as a spring here, can pull these two ends with a fork-shaped design together, such that the latch element 14 moves into its release position.

[0076] List of reference numerals

[0077] 1 Mounting bracket

[0078] 2 Mounting axis

[0079] 3 First mounting element

[0080] 4 Second mounting element

[0081] 5 Connecting device

[0082] 6 Rear side

[0083] 7 Inner side

[0084] 8 Front side

[0085] 9 Plate body

[0086] 10 Form-fitting element

[0087] 11 First blank part

[0088] 12 Second blank part

[0089] 13 Mounting opening

[0090] 14 Latch element

[0091] 15 Trigger element

[0092] 16 Driving element

[0093] 17 Separation element

[0094] 18 Third blank part

[0095] 19 Adjusting screw

[0096] 20 Compensation spring

[0097] 21 Positioning protrusion

[0098] 22 Thickness

[0099] 30 Internal thread

[0100] 31 Lever

[0101] 100 Device

[0102] 101 Mounting surface

[0103] 102 Door operator

[0104] 103 Output shaft

Claims

1. An installation bracket (1) for a door operator (102), comprising · a first installation element (3) and a second installation element (4), wherein one of the two installation elements is configured for fixing to an installation surface (101), and the other installation element is configured for receiving the door operator (102), · at least one connecting device (5), the connecting device having a latch element (14) movably arranged on the first installation element (3) and a thermally activatable trigger element (15), · wherein the latch element (14) is movable from a holding position to a release position, wherein the latch element (14) holds the second installation element (4) in the holding position and releases the second installation element (4) in the release position, · wherein the trigger element (15) releases the movement of the latch element (14) to the release position upon thermal activation, and / or the trigger element (15) causes the latch element (14) to move to the release position upon thermal activation, and · wherein the trigger element (15) is arranged between the latch element (14) and the first installation element (3) so as to block the movement of the latch element (14) to the release position.

2. The installation bracket according to claim 1, wherein the installation surface (101) is a door, a door frame or a wall.

3. The installation bracket according to claim 1, wherein the trigger element (15) is clamped between the latch element (14) and the first installation element (3).

4. The installation bracket according to any one of claims 1 to 3, wherein the trigger element (15) is destructible and / or deformable and / or meltable under thermal load.

5. The installation bracket according to any one of claims 1 to 3, wherein the latch element (14) is received in a cut-out (18) of the first installation element (3).

6. The installation bracket according to any one of claims 1 to 3, wherein the latch element (14) engages with the second installation element (4) in a form-fitting manner in its holding position.

7. The installation bracket according to any one of claims 1 to 3, wherein the connecting device (5) comprises a drive element (16) for moving the latch element (14) to the release position.

8. The installation bracket according to claim 7, wherein the drive element (16) has a thermally expandable material and / or a spring.

9. The installation bracket according to claim 7, wherein the drive element (16) is arranged in the cut-out (18) of the first installation element (3) and / or in a first cut-out (11) of the second installation element (4).

10. The installation bracket according to any one of claims 1 to 3, wherein a separating element (17) is provided, the separating element (17) being arranged for pressing the first installation element (3) and the second installation element (4) apart from each other.

11. The mounting bracket according to claim 10, wherein the separating element (17) comprises a thermally foaming material and / or a spring.

12. The mounting bracket according to claim 10, wherein the separating element (17) is arranged in the cut-out of the first mounting element (3) and / or in the second cut-out (12) of the second mounting element (4).

13. The mounting bracket according to any one of claims 1 to 3, wherein the first mounting element (3) is configured as a plate.

14. The mounting bracket according to any one of claims 1 to 3, wherein the second mounting element (4) is configured as a plate.

15. The mounting bracket according to any one of claims 1 to 3, wherein a plurality of second mounting elements (4) are provided, the plurality of second mounting elements being configured to receive the door operator (102) and / or to be fixed to the mounting surface (101).

16. The mounting bracket according to claim 15, wherein the plurality of second mounting elements (4) are inserted into the first mounting element (3).

17. The mounting bracket according to claim 16, wherein the plurality of second mounting elements are configured as sleeves having internal threads (30).

18. The mounting bracket according to any one of claims 1 to 3, wherein the mounting bracket (1) has a maximum thickness (22) of 60 mm.

19. The mounting bracket according to claim 18, wherein the mounting bracket (1) has a maximum thickness (22) of 40 mm.

20. An apparatus (100) comprising a mounting bracket (1) according to any one of claims 1 to 19 and a door operator (102) fixed to the mounting bracket (1).

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