DOOR CLOSER ASSEMBLY

Abstract

A door closer assembly includes a door closer without a powered drive for closing a door. The door closer includes an energy accumulator, wherein the energy accumulator is chargeable by manually opening the door and wherein the energy accumulator discharges for closing the door. A sensor unit is also included for detecting an angle information with regard to the opening angle of the door.

Claims

1. A door closer assembly, comprising: a door closer without powered drive for closing a door, wherein the door closer includes an energy accumulator, wherein the energy accumulator is chargeable by manually opening the door and wherein the energy accumulator is dischargeable by closing the door; and a sensor unit configured for detecting an angle information with regard to an opening angle of the door.

2. The door closer assembly according to claim 1, further comprising an interface unit configured for sending the angle information to a building control unit superordinate to the door closer assembly.

3. The door closer assembly according to claim 2, further comprising a blocking device configured for holding open the door against a closing force of the door closer, wherein the interface unit is formed for receiving a closing signal form the building control unit, and wherein the interface unit is formed for controlling the blocking device upon responding to the closing signal.

4. The door closer assembly according to claim 1, wherein the sensor unit comprises a transmitter and a sensor, wherein the sensor is formed for contactlessly detecting a position of the transmitter.

5. The door closer assembly according to claim 1, wherein the door closer further comprises an output shaft, wherein the sensor unit is disposed at the output shaft for detecting the rotation of the output shaft.

6. The door closer assembly according to claim 5, wherein a first end of the output shaft is torque-proof connected to an arm assembly of the door closer assembly, and the sensor unit is disposed at a second end of the output shaft, the second end disposed opposite the first end.

7. The door closer assembly according to claim 5, wherein a first end of the output shaft is torque-proof connected to an arm assembly of the door closer assembly, and wherein the sensor unit is disposed at the connection of the output shaft to the arm assembly.

8. The door closer assembly according to claim 1, wherein the door closer further comprises an output shaft, wherein a first end of the output shaft is torque-proof connected to an arm assembly of the door closer assembly, wherein the arm assembly is formed with two rods rotatable to each other as a scissor arm assembly, and wherein the sensor unit is disposed at the connection of the two rods for detecting the rotation between the two rods.

9. The door closer assembly according to claim 1, wherein the door closer comprises an output shaft, wherein a first end of the output shaft is torque-proof connected to an arm assembly of the door closer assembly, wherein the arm assembly comprises a rod which is torque-proof connected to the output shaft, a sliding rail and a sliding member linearly guided in the sliding rail, wherein the rod is rotatably mobile connected to the sliding member.

10. The door closer assembly according to claim 9, wherein the sensor unit is disposed at the connection of the rod to the sliding member for detecting the rotation between the rod and the sliding member.

11. The door closer assembly according to claim 9, wherein the sensor unit is disposed in the sliding rail for detecting the position of the sliding member.

12. The door closer assembly according to claim 11, wherein the sensor unit comprises a tensioning element, which can be wound up and unwound from a spindle, wherein moving the sliding member makes the tensioning element windable up and unwindable, and wherein the sensor unit is formed for detecting the rotation of the spindle.

13. A method for operating a door closer assembly, in particular the door closer assembly according to claim 1, the method including the step of a sensor unit detecting angle information with regard to the opening angle of the door at a door closer without powered drive.

14. The method according to claim 13, wherein the method further includes the step of sending detected angle information to a superordinate building control unit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The disclosure is now described in more detail based on exemplary embodiments. In this case, it shows:

[0039] FIG. 1 an inventive door closer assembly according to a first exemplary embodiment,

[0040] FIG. 2 a sectional view of a door closer of the inventive door closer assembly according to the first exemplary embodiment,

[0041] FIG. 3 a detail of the inventive door closer assembly according to the first exemplary embodiment,

[0042] FIG. 4 another detail of the inventive door closer assembly according to the first exemplary embodiment,

[0043] FIG. 5 an inventive door closer assembly according to a second exemplary embodiment,

[0044] FIG. 6 a detail of the inventive door closer assembly according to the second exemplary embodiment,

[0045] FIG. 7 another detail of the inventive door closer assembly according to the second exemplary embodiment,

[0046] FIG. 8 an inventive door closer assembly according to a third exemplary embodiment,

[0047] FIG. 9 a detail of the inventive door closer assembly according to the third exemplary embodiment,

[0048] FIG. 10 another detail of the inventive door closer assembly according to the third exemplary embodiment,

[0049] FIG. 11 an inventive door closer assembly according to a fourth exemplary embodiment,

[0050] FIG. 12 a detail of the inventive door closer assembly according to the fourth exemplary embodiment,

[0051] FIG. 13 another detail of the inventive door closer assembly according to the fourth exemplary embodiment,

[0052] FIG. 14 a diagrammatic view of a sliding rail of the inventive door closer assembly according to the fourth exemplary embodiment, and

[0053] FIG. 15 a diagrammatic view of an inventive door closer assembly according to a fifth exemplary embodiment.

DETAILED DESCRIPTION OF THE DRAWINGS

[0054] In the following are described door closer assemblies 1 of different exemplary embodiments. Same, respectively functionally same parts are identified with the same reference numerals in all exemplary embodiments. The same door closer 2 can be employed in all exemplary embodiments.

[0055] By way of example, the door closer 2 for all exemplary embodiments is described based on the first exemplary embodiment and FIGS. 1 and 2. The door closer 2 comprises a door closer covering 21, for example made from plastic material or from sheet metal. A door closer housing 22, for example a cast part, is located inside the door closer covering 21. An output shaft 23 is rotatably mobile supported in the door closer housing 22. The output shaft 23 includes a first end 24 and a second end 25. The output is realized via the first end 24, for example via an arm assembly 4.

[0056] An energy accumulator 26, herein formed as a spring, is located inside the door closer housing 22. A closing piston 27 and a dampening piston 28 are linearly mobile guided in the door closer housing 22. Both pistons 27, 28 roll on a cam contour 29 of the output shaft 23. Thereby, a conversion is possible between linear and rotary movement and between the pistons 27, 28 and the output shaft 23.

[0057] Opening the door causes a rotation of the output shaft 23 and tensioning the energy accumulator 26 by means of a movement of the closing piston 27. When closing the door, the energy accumulator 26 relaxes and thereby moves the output shaft 23 via the closing piston 27.

[0058] In each exemplary embodiment, the door closer assembly 1 comprises a sensor unit 5. The sensor unit 5 is disposed such as to detect the movement of a component of the door closer assembly 1, whereby angle information can be determined with regard to the opening angle of the door.

[0059] Preferably, in all exemplary embodiments, it is provided for the sensor unit 5 to comprise a sensor 51 and a transmitter 52. The transmitter 52 is formed as a permanent magnet with two opposing poles. In this case, the transmitter axis 57 of the transmitter 52, which connects the two poles to each other, is thereby preferably always vertical to the axis of rotation 58. Correspondingly, the sensor 51 is disposed above or below the transmitter 52 such that the axis of rotation 58 extends through the sensor 51. Preferably, transmitter axis 57 and axis of rotation 58 are vertical to each other.

[0060] In all exemplary embodiments, preferably, the sensor 51 is disposed on a printed circuit board 53. Preferably, the door closer assembly 1 comprises an interface unit 54. Preferably, said interface unit 54 is likewise located on the printed circuit board 53.

[0061] In the exemplary embodiments shown, the interface unit is connected to the building control unit 55 via an optional cabling 56. Instead of the cabling 56, also a cordless connection can be used between the interface unit 54 and the building control unit 55.

[0062] In the first exemplary embodiment according to the FIGS. 1 to 4, the transmitter 52 is located at the front side at the second end 25 of the output shaft 23. Thus, the transmitter 52 rotates with the output shaft 23.

[0063] FIG. 1 shows the exterior door closer covering 21. In the sectional illustration according to FIG. 2, the door closer covering 21 is omitted. The arrangement of the sensor 51 is not shown either herein for the sake of clarity.

[0064] As in particular shown in the illustration of FIG. 3, the door closer covering 21 has a recess 30. A sensor cover 60 closes said recess 30. The sensor cover 60 is linearly displaceably disposed on a sensor cover frame 61. The sensor cover frame 61 in turn is attached to the door closer covering 21 such that the sensor cover frame 61 surrounds the recess 30 and the sensor cover 60 closes the recess. FIG. 4 shows the sensor cover frame 61 with the sensor cover 60 in the opened location.

[0065] The printed circuit board 53 with the sensor 51 is disposed on the inside of the sensor cover 60.

[0066] The cabling 56 extends from the interface unit 54 through the recess 30 into the inside of the door closer covering 21.

[0067] In the second exemplary embodiment shown in the FIGS. 5 to 7, the first end 24 of the output shaft 23 is torque-proof connected to a rod 41 of the arm assembly 4. Said rod 41 can be the rod of a scissor arm assembly or can be connected to a sliding member 42.

[0068] For this purpose, FIG. 6 just shows the output shaft 23 of the door closer 2 and the end of the rod 41 attached thereto. A covering of the rod 41 is omitted. As in particular shown in FIG. 6, the sensor unit 5 comprises a cantilever arm 62. The cantilever arm 62 is torque-proof connected to the door closer 2; for example to the door closer housing 22. Thereby, the cantilever arm 62 does not rotate with the output shaft 23, respectively with the rod 41. The transmitter 52 is located at the cantilever arm 62.

[0069] The sensor 51 is located opposite the transmitter 52. Herein, the sensor 51 is firmly connected to the rod 41. In particular for this purpose, it is provided for the printed circuit board 53, which carries the sensor 51, to be disposed on the rod 41.

[0070] FIG. 7 shows the arrangement without the cantilever arm 62 and the transmitter 52. In this case, it is diagrammatically drawn in that the cabling 56 can extend from the interface unit 54 through the rod 41 or along the rod 41.

[0071] For the third exemplary embodiment, FIGS. 8 to 10 show the embodiment of the arm assembly 4 with the rod 41 and the sliding member 42. Said sliding member 42 is guided in a sliding rail 43, for example shown in FIG. 11. Herein, the sensor unit 5 is located at the connection between the rod 41 and the sliding member 42.

[0072] FIG. 9 shows the inside of the sliding member 42. A sliding housing of the sliding member 42 is omitted. FIG. 10 shows the underside of the printed circuit board 53. According to said Figures, the sensor unit 5 in turn comprises a cantilever arm 62, which is torque-proof connected to the rod 41 and carries the transmitter 52. The sensor 51 is disposed opposite the transmitter 52. Via the printed circuit board 53, the sensor 51 is disposed firmly in the sliding member 42.

[0073] In the fourth exemplary embodiment, corresponding to the FIGS. 11 to 14, the sensor unit 5 is disposed in the sliding rail 43.

[0074] FIG. 11 shows the sliding rail 43, in which the sliding member 42 is linearly mobile guided, as shown in FIG. 8 for example. In FIG. 12 the profile of the sliding rail 43 is omitted such as to reveal the structure of the sensor unit 5.

[0075] The sensor unit 5 comprises a tensioning element 63, which is disposed windable to and un-windable from a spindle 64. A helical spring 65 is provided for winding up the tensioning element 63.

[0076] The free end of the tensioning element 63 is connected to the sliding member 42. When moving the sliding member 42 in the sliding rail 43, the tensioning element 63 is wound up and unwound such that the spindle 64 rotates.

[0077] As shown in FIG. 13, the transmitter 52 is located at a frontal end of the spindle 64 and thus rotates with the spindle 64.

[0078] Like in the other exemplary embodiments, the printed circuit board 53 is omitted and carries the sensor 51, which is disposed opposite the transmitter 52. The cabling 56 can run to the building control unit 55 in an arbitrary manner.

[0079] FIG. 14 purely diagrammatically shows a potential embodiment of the cross-section of the profile of the sliding rail 43. The sliding member 42 is guided in a first channel 66 of the profile. The tensioning element 63 runs in a second channel 67. Through the slot, a connection 68 connects the tensioning element 63 to the sliding member 42. In said embodiment with the two channels 66, 67, the tensioning element 63 extends well protected in its own channel.

[0080] According to a fifth exemplary embodiment, FIG. 15 shows purely diagrammatically an embodiment of the door closer assembly 1 with an arm assembly 4 as a scissor arm assembly 69. In this case, two rods 41 are provided, which are rotatably connected to each other. The sensor unit 5 can be disposed at the connection of the two rods 41. In detail, the sensor unit 5 can be embodied like in the other exemplary embodiments. In this case, for example a cantilever arm 62 torque-proof connects the transmitter 52 to the one rod 41. The sensor 51, in particular on a printed circuit board 53, is located on the other rod 41.