Door locking device, in particular an electromagnetic door locking device

Abstract

A door locking device, in particular an electromagnetic door locking device, for a door with a rotary catch for a closing bolt of the door, wherein in particular said rotary catch can be acted upon or is acted upon in particular by a torque, wherein the rotary catch has a closing bearing surface. The door locking device includes a pivoting body, in particular a pivoting locking body, and a lever body, wherein the pivoting body is connected to the lever body by a connecting body, wherein the connecting body is connected by a first joint to the pivoting body and by a second joint to the lever body, wherein in a closed position of the rotary catch the closing bearing surface of the rotary catch is in contact or is able to be brought into contact with the first joint between the pivoting body and the connecting body.

Claims

1. A door locking device for a door having a closing bolt, the door locking device comprising: a rotary catch for the closing bolt of the door; a pivoting body; a connecting body; and a lever body; and wherein the rotary catch is configured to be acted upon by a torque, wherein the rotary catch includes a recess with a closing bearing surface, wherein the connecting body is connected by a first joint to the pivoting body and by a second joint to the lever body, wherein, in a closed position of the rotary catch, the closing bearing surface of the recess of the rotary catch directly contacts the first joint between the pivoting body and the connecting body, and wherein, in an open position of the rotary catch, the closing bearing surface of the recess of the rotary catch does not directly contact the first joint between the pivoting body and the connecting body.

2. The door locking device according to claim 1, wherein spacing between a pivot axis of the pivoting body and a pivot point of the first joint is smaller than a lever length of the lever body.

3. The door locking device according to claim 2, wherein spacing between the pivot axis of the pivoting body and the pivot point of the first joint is smaller than spacing between a pivot point of the second joint between the connecting body and the lever body and a rotational axis of the lever body.

4. The door locking device according to claim 1, wherein spacing between a pivot axis of the pivoting body and a pivot point of the first joint and spacing between pivot points of the first joint and the second joint are not equal.

5. The door locking device according to claim 4, wherein the pivoting body is configured as an internal link of a roller chain and the connecting body is configured as an external link of a roller chain, or wherein the pivoting body is configured as an external link of a roller chain and the connecting body is configured as an internal link of a roller chain.

6. The door locking device according to claim 1, wherein the pivoting body and the connecting body are configured as roller chain links.

7. The door locking device according to claim 1, wherein the lever body and the connecting body are configured as a toggle lever device.

8. The door locking device according to claim 7, wherein a lever length of the lever body is greater than spacing between pivot points of the first joint and the second joint on the connecting body.

9. The door locking device according to claim 1, wherein, in the closed position of the rotary catch, pivot points of the bearing axis of the lever body and of the first and second joint on the connecting body are aligned.

10. The door locking device according to claim 1, wherein in the closed position of the rotary catch the lever body and/or the connecting body bear against a supporting body.

11. The door locking device according to claim 10, wherein the supporting body is in a housing of the door locking device.

12. The door locking device according to claim 1, wherein an arm body is arranged on the lever body.

13. The door locking device according to claim 12, wherein the arm body is a lever arm.

14. The door locking device according to claim 1, wherein an actuating device is provided for moving the lever body.

15. The door locking device according to claim 14, wherein the actuating device has an electric motor or an electromagnet.

16. The door locking device according to claim 14, wherein a control device is provided for the actuating device.

17. The door locking device according to claim 1, wherein the door locking device has a housing.

18. The door locking device according to claim 17, wherein a pivot axis of the rotary catch and/or a pivot axis of the pivoting body and/or a rotational axis of the lever body are mounted in or on the housing.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention is described hereinafter without limiting the general inventive idea by means of exemplary embodiments with reference to the drawings, wherein with regard to all details according to the invention which are not explained in more detail in the text, reference is expressly made to the drawings, in which:

(2) FIG. 1 shows schematically a section through a door locking device in the closed state; and

(3) FIG. 2 shows schematically a detail of the door locking device in the unlocked state.

(4) In the drawings, elements and/or parts which are the same or similar are provided in each case with the same reference numerals, so that in each case a further illustration is omitted.

DETAILED DESCRIPTION OF THE INVENTION

(5) In FIG. 1 a longitudinal section through a door locking device 10 is shown schematically in the closed state. The door locking device 10 has a housing 12. The housing 12 in this case has a housing base plate with a plurality of recesses for the arrangement of the components of the door locking device. The housing 12 has an insertion slot 14, for example a closing bolt 30 of a door or the like being able to be inserted through said insertion slot and being locked in the closed state.

(6) In order to lock the closing bolt 30, a rotary catch 16 is rotatably mounted in the housing 12, said rotary catch having a jaw-shaped recess or opening 18 for receiving the closing bolt 30.

(7) The rotary catch 16 is rotatably mounted by means of a bearing pin 20 in the housing 12, so that the rotary catch 16 can be moved between the closed position (see FIG. 1) and the open position or respectively unlocked position (see FIG. 2). The rotary catch 16 further has a recess with a closing bearing surface 17.

(8) Moreover, a spring 22 is arranged in the housing 12, said spring acting on the rotary catch 16, so that when the rotary catch 16 is opened by means of the spring 22 the rotary catch 16 is automatically rotated into the unlocked position (see FIG. 2).

(9) In the locked position (see FIG. 1) one end of the rotary catch 16 is supported on a pivoting body 24. The pivoting body 24 is pivotable about a bearing pin 26. The pivoting body 24 is connected to a lever body 32 via a connecting body 28. In this case, the pivoting body 24 is connected to the connecting body 28 by means of a (first) joint 34. The connecting body 28 in turn is connected to the lever body 32 via a second joint 36.

(10) In order to rotate the lever body 32, said lever body is rotatably mounted in the housing 12 by means of a bearing pin 38. The bearing pin 26 for the pivoting body 24 and the bearing pin 38 for the lever body 32 in this case are arranged on the housing 12. Moreover, a lever arm 40 is arranged on the lever body 32. For moving or respectively for actuating the lever arm 40 an electromagnet 42 is provided with a moveable tappet, wherein the tappet of the electromagnet 42 is brought into contact with the lever arm 40. In one embodiment, the lever arm 40 is connected to an electromagnet 42.

(11) In the closed position of the rotary catch 16 (see FIG. 1) the lever body 32 and the connecting body 28 are arranged in an over-dead-center position (i.e., pivot points of the bearing axis of the lever body and of the first and second joint on the connecting body are aligned), wherein the lever body 32 in this case is supported on a supporting body 44 of the housing 12. When actuating the electromagnet 42 the lever arm 40 is forced away from the electromagnet 42, so that the lever body 32 connected to the lever arm 40 is rotated or respectively moved away from the supporting body 44 and deflected so that the dead center point of the toggle lever between the connecting body 28 and the lever body 32 is passed through, whereby the pivoting body 24 connected to the connecting body 28 is moved away from the rotary catch 16 and, as a result, the rotary catch 16 is opened (see FIG. 2). By the deflection of the pivoting body 24, the closing bearing surface 17 of the rotary catch 16 no longer bears against the first joint 34, whereby the rotary catch 16 is released.

(12) According to the invention, in one embodiment the pivoting body 24 is configured as an internal link of a roller chain and the connecting body 28 is configured as an external link of a roller chain. Moreover, in one embodiment the spacing 62 of the pivot axis 26 from the rotational axis of the joint 34 is not equal to the spacing 60 between the rotational axes of the joints 34, 36. Moreover, the lever length 64 of the lever body 32, i.e. the spacing between the pivot axis on the bearing pin 26 and the pivot point or respectively the rotational axis of the second joint 36, is greater than the spacing 60 between the rotational axes of the joints 34, 36.

(13) In the locked position or respectively in the closed position the closing bearing surface 17 of the rotary catch 16 bears against the first joint 34 between the pivoting body 24 and the connecting body 28. When the lever body 32 is moved from the closed position, the bearing of the closing bearing surface 17 of the rotary catch 16 on the joint 34 is released and the rotary catch 16 is released, whereby the rotary catch 16 is rotated into the unlocked position in which the closing bearing surface 17 of the rotary catch 16 does not contact the first joint 34 between the pivoting body 24 and the connecting body 28 (see FIG. 2). In the unlocked position, the closing bolt 30 is released or received again for locking.

(14) Moreover, a switch 46 with a control device (not shown here) is arranged in the housing 12 (see FIG. 1), a sensor arm 48 being pivotably arranged thereon. The pivoting body 24 bears with its free end on the outer face of the rotary catch 16, wherein depending on the rotary position of the rotary catch 16 it is detected by means of the sensor arm 48 whether the rotary catch 16 is in the closed position or in the unlocked position.

(15) In order to control the electromagnet 42, for opening the closed position of the rotary catch 16 (see FIG. 1) a control signal is emitted from the control device to the electromagnet 42, whereby the lever arm 40 and the lever body 32 connected thereto are rotated.

(16) All of the cited features and the features to be derived only from the drawings and also individual features, which are disclosed in combination with other features, are regarded as essential to the invention individually and in combination. Embodiments according to the invention may be implemented by individual features or a combination of a plurality of features. Within the scope of the invention features which are identified by in particular or preferably are to be understood as optional features.

LIST OF REFERENCE NUMERALS

(17) 10 door locking device

(18) 12 housing

(19) 14 insertion slot

(20) 16 rotary catch

(21) 17 closing bearing surface

(22) 18 jaw-shaped opening

(23) 20 bearing pin

(24) 22 spring

(25) 24 pivoting body

(26) 26 bearing pin

(27) 28 connecting body

(28) 30 closing bolt

(29) 32 lever body

(30) 34 first joint

(31) 36 second joint

(32) 38 bearing pin

(33) 40 lever arm

(34) 42 electromagnet

(35) 44 supporting body

(36) 46 switch

(37) 48 sensor arm

(38) 60 spacing between rotational axes of joints 34, 36

(39) 62 spacing between rotational axes of bearing pin 26 and joint 34

(40) 64 lever length