EP1101893B1 - Blocking device for door closer, electromagnet and slider - Google Patents

Abstract

The fixing device has a sliding arm attached to a closure shaft and movable in a guide rail at the ends, an electrically switched holder with a movable stop, a movable bearing supporting the stop and/or a spring and an electromagnet that interacts with the bearing if it is adjacent. The bearing is connected to a plate forming/connected to the electromagnet's armature plate. The force of the electromagnet acts perpendicularly to the door plane. The fixing device (20) has a sliding arm attached to a closure shaft at one end and movable in a guide rail at the other, an electrically switched holder with a movable stop, a movable bearing (31) on which the stop (30,32) and/or spring (35) is supported and an electromagnet (21-23) that interacts with the bearing when it is immediately adjacent. The bearing is connected to a plate forming the electromagnet's armature plate or connected to the armature plate. The force of the electromagnet acts in a direction perpendicular to the plane of the door.

Description

The invention relates to a locking device having the features of the preamble of claim 1.

EP 0 321 649 A2 discloses a locking device for a door provided with a door closer, with a sliding arm arranged between the door and the frame, which is articulated at one end on the wing or on the frame and at its other end in a frame or frame . arranged on the door guide rail is displaceably guided, and in which an electrically lockable holding device is arranged. In this case, a movable stop is urged by a spring in the movement path of the sliding arm. The stop cooperates with a plate, which is designed as an anchor plate of an electromagnet, wherein the plate is arranged on the side remote from the movement path of the sliding arm side.

Another construction is known from DE 38 06 662 A1. There, the magnetic force acting parallel to the slider track is deflected by means of two levers and a spring cooperating therewith to the slider track, that the movable stop engages in the movement path of the slider.

In DE 89 02 002 U1, the magnetic force also acts parallel to the slider track on a sliding member which urges a trained as a double-armed lever pivot member in the trajectory of the slider via a spring.

In DE 93 06 539 U1, the armature plate of the magnet is connected to a locking pin, which cooperates with a pivotable housing, which carries the stop. Again, the magnetic force acts parallel to the direction of movement of the slider.

From US 3,926,461 a device is known which comprises an electromagnet, which cooperates fixedly on the frame non-displaceable via a spring and lever mechanism with a full length of the slider track sweeping clamping rod. This clamp rod can be moved by the magnetic force perpendicular to the slider track, whereby the slider is locked in its just assumed position by clamping.

In these constructions in which the electromagnet is arranged in a common horizontal plane with the slider track, a low construction of the rail results. The constructions are each constructed so that the magnetic force acts in the direction of the slider movement. There are therefore elaborate lever structures provided, each deflecting the magnetic force in the direction transverse to the slider track.

The invention has for its object to provide a locking device, which allows a low construction of the guide rail and has a simple structure.

This object is achieved with the features of claim 1.

Due to the inventive arrangement of the locking device with a force acting perpendicular to the door frame plane magnetic force can be dispensed with elaborate lever designs for deflection.

In preferred embodiments, it is provided that the plate plane and the effective surface of the electromagnet are parallel to the door frame plane, wherein the plate either on the side remote from the movement path of the slider side or between the trajectory of the slider and the electromagnet can lie. With a guide device for the plate, which leads them perpendicular to the door frame level, particularly functionally reliable, structurally simple versions arise. Preferably, the guide means for the plate consists of two sleeves, one of which is connected to the body of the magnet and the other to the plate.

The plate is preferably designed as an anchor plate, and the electromagnet as a magnet. In alternative embodiments, the electromagnet is designed as a lifting magnet, wherein the armature can be an engaging in the magnets lifting armature.

Particularly simple embodiments are obtained when the movable bearing is rigidly connected to the plate and the plate is mounted on the electromagnet, without physical pivot point, stored. As a result, can be dispensed with a hinge for pivotal mounting of the movable bearing.

Preferably, the movable stop is mounted in a recess of the electromagnet. This allows the use of large magnets with multiple coils, wherein the recess is arranged in a space between the coils.

Preferably, the movable stop and the guide sleeves for the plate are designed as plastic parts. The plastic material prevents interfering interactions with the electromagnet and thus achieves high functional reliability.

Particularly maintenance- and repair-friendly versions result from a multi-chamber design of the guide rail, especially when the chamber in which the slider is located, is clipped only as a panel on the guide rail.

Figur 1

eine perspektivische Darstellung der Ausführung bei offener Tür;

Figur 2

einen horizontalen Schnitt durch das Schienengehäuse mit der Feststellvorrichtung entlang der Linie C - C in Figur 1;

Figur 3

einen vertikalen Schnitt durch das Schienengehäuse mit der Feststellvorrichtung entlang der Linie A - A in Figur 1.

An embodiment is shown in the following figures. Showing:

FIG. 1

a perspective view of the embodiment with the door open;

FIG. 2

a horizontal section through the rail housing with the locking device along the line C - C in Figure 1;

FIG. 3

a vertical section through the rail housing with the locking device along the line A - A in Figure 1.

In Figure 1 , the overhead door closer 1 is mounted with its housing 4 on the door leaf 5 and the rail 3 on the door frame 6. In other corresponding embodiments, this may also be provided vice versa, so that the door closer housing 4 is attached to the frame 6 and the rail 3 on the door leaf 5.

In the door closer housing 4 is a drive unit, not shown, e.g. consisting of one or more closer springs and / or a third-party powered drive motor and a preferably hydraulic damping device. Furthermore, in the door closer housing 4, a closer to the drive unit in operative connection closer shaft 7 is mounted. The closer shaft 7 is rotatably connected to a sliding arm 2. The sliding arm 2 is slidably guided with its free end by means of a slider 16 in the rail 3, in which the locking device 20 is arranged.

The rail 3 has a multi-chamber housing 10. The chambers 11, 12, 13 extend parallel to each other, wherein adjacent chambers 11, 12, 13 adjoin each other on their longitudinal sides. They are successively arranged successively in a common horizontal plane in the direction perpendicular to the door frame plane.

In the embodiment of the frame side, hereinafter referred to as the rear chamber chamber 11, the locking device 20 is arranged. In the exemplary embodiment in the middle or on the side facing away from the frame chambers 12, 13, hereinafter referred to as the middle chamber 12 and front chamber 13, the slider 16 is guided. Between the rear chamber 11 and the middle chamber 12 and between the middle chamber 12 and the front chamber 13 respectively opposite web edges 14, 15 are arranged.

The web edges 14, 15 delimit longitudinally extending openings 14a, 15a, with which the rear chamber 11 and middle chamber 12 and the middle chamber 12 and front chamber 13 are interconnected.

In the exemplary embodiment, the slider 16 is shaped such that the web edges 15 between the middle chamber 12 and the front chamber 13 engage in recesses on the side of the slider 16 and thus in the direction of the slider track lead stable. A part of the slider body, in the embodiment frame side, (16a, in Figure 3 below) therefore moves in the middle chamber 12, another part, in the embodiment facing away from the frame (16b, in Figure 3 above), in the front chamber 13. The slider 16 is further guided on the web edges 14 on its rear chamber 11 side facing.

At the frame remote from the slider 16 of the sliding arm 2 is hinged. For this purpose, the sliding arm 2 has at its free end a vertical pin 2a, which engages in a bore in the frame-facing part of the slider 16 to form a rotary bearing. The pin 2a engages from below through a formed in the bottom of the cover 18 of the front chamber 13 slot 17. In the exemplary embodiment, this Abdeckblende 18, which extends over the entire longitudinal front of the guide rail 3, front clipped on this.

The locking device 20 has a body 21 in the form of a steel block, in which two electric coils 22, 23 are used. The body 21 has between the two coils 22, 23 a round cross-section recess 24 into which a plastic sleeve 25 connected to the body is inserted. Sideways, i. in the horizontal direction on the frame side facing away from the body 21 supports a steel plate 31, which adheres to the energized in the coil 22, 23 on the magnetized body 22 in the region of the coils 22, 23. With the plate 31, a plastic sleeve 26 is connected, which engages in the sleeve 25 connected to the steel body 21 and thus ensures a guidance of the plate 31 in the horizontal direction perpendicular to the door frame plane.

The body 21 has in the region of its longitudinal edges facing away from the frame on both sides a stepped edge with which it is supported on the respective web 14. The protrusion of the body 21 formed between the stepped edges protrudes through the opening 14a and terminates flush with the side of the webs 14 facing away from the frame.

In the sleeve 26, a slider 30 is arranged axially movable. This has a latching nose 32, with which it protrudes into the middle chamber 12 in the movement path of the slider 16.

The detent 32 has on the right side a steeper inclined surface 32a and on the left a flatter oblique surface 32b. The surface 32a forms the abutment surface for the slider 16 in the locking position. With the surface 32b of the slider 16 acts when opening the door 5 together. The slider 30 is formed as a plastic injection-molded part, in which a spacer screw 33 is injected, which is in contact with its free head end 34 with the door frame facing side of the plate 31. Between the slider 30 and the plate 31, a compression spring 35 is mounted, which urges the slider 30 with the locking lug 32 in the movement path of the slider 16 in the middle chamber 12. The plate 31 thus forms in the area between the coils 22, 23, the movable bearing of the movable stopper with slide 30 and locking lug 32. Between the plate 31 and the frame-side inner wall 40 of the rear chamber 11, a leaf spring 41 is mounted, which acts as a return spring and the plate 31 to the body 21 pushes. In the body 21, a clamping screw 42 is screwed in a thread, which is supported with its protruding free end of the frame-side inner wall 40 of the rear chamber 11 and the body 21 clamped in the rear chamber 11 in this way.

At the right in Figure 2 end of the body 21, the electrical supply line 43 is connected. It is guided in the rear chamber 11.

The illustrated locking device 20 can be locked with the clamping screw 42 in any position in the longitudinal direction of the rail 3.

The device of the invention operates as follows: When the electric coils 22, 23 are energized, the steel body 21 is magnetized, that is, the electromagnet 21, 22, 23 is turned on. In this switching position, the locking device 20 is turned on. Accordingly, by switching off the current of the solenoid 21, 22, 23 and thus the locking device 20 is turned off.

When opening the door 5, the slider 16 slides in the illustration in Figure 2 from left to right. When closing the slider 16 slides from right to left.

When opening the door 5, the slider 16 passes the latching nose 32 by engaging the inclined surface 32b and sliding the slider 30 into the magnetic body 21, regardless of whether the magnet 21, 22, 23 is turned on or off. When the magnet 21, 22, 23, the slider 30 is displaced under compression of the compression spring 35. The plate 31 remains adhered to the magnetic body 21. When the magnet 21, 22, 23, the plate 31 can lift off, so that when passing the slider 16, the slider 30 is moved together with the plate 31 perpendicular to the door frame plane to the rear. The compression spring 35 remains unchanged. When closing the door 5, the slider 16 comes to stop surface 32a in abutment. When the solenoid 21, 22, 23 is turned on, the slider 16 is thereby stopped in the relevant position in abutment position. Thus, the door 5 is detected.

A further closing of the door 5 takes place only when the power supply of the magnet 21, 22, 23 is turned off or the door 5 is pressed by hand.

When switching off the magnet 21, 22, 23, the slider 30 is moved by means of the slider 16 perpendicular to the door frame plane backwards under the effect of the closing torque of the door closer, wherein the plate 31 lifts and is moved to the frame-side inner wall of the rear chamber 11 and the spring 35th remains unchanged. The plate plane is always held by the guide sleeves 25, 26 in the vertical direction. When pressing by hand, the slider 30 is also moved perpendicular to the door frame plane when passing the slider 16, but the plate 31 adheres to the magnetic body 21 and instead the spring 35 is compressed for the deflection of the slider 30.

The locking angle of the door 5 can by any choice of the position of the locking device 20 and the displaceable body 21 in the longitudinal direction of Rail 3 can be adjusted. To adjust it is necessary to clamp the locking device 20 in the appropriate position with the screw 42.

LIST OF REFERENCE NUMBERS

1

door closers

2

sliding arm

2a

spigot

3

rail

4

Door closer housing

5

door leaf

6

doorframe

7

closer shaft

10

More chamber housing

11

rear chamber

12

middle chamber

13

front chamber

14

Steg edge

14a

opening

15

Steg edge

15a

opening

16

skid

17

slot

18

cover panel

20

Locking device

21

body

22

Kitchen sink

23

Kitchen sink

24

recess

25

Plastic sleeve

26

Plastic sleeve

30

pusher

31

steel plate

32

locking lug

32a

sloping surface

32b

area

33

distance screw

34

free headboard

35

compression spring

40

inner wall

41

leaf spring

42

clamping screw

43

supply

Claims (10)

1. Arresting arrangement (2) for a door provided with a door closer (1),
   it being the case that the door closer has a closer shaft (7) and is arr anged on the door leaf (5) or on the frame (6),
   having a sliding arm (2) which, at one end, is mounted in a rotationally fixed manner on the closer shaft (7) and, at its other end, is guided, by means of a slider (16) arranged in an articulated manner on the sliding arm (2) via a pin (2a), such that it can be displaced in a guide rail (3) which is ar ranged on the frame (6) or on the door (5) and comprises a plurality of chambers (11, 12, 13) extending in the longitudinal direction, the pin (2a) engaging through a slot (17) arranged in the guide rail (3),
   and having an electrically switchable retaining device with a moveable stop (30, 32), which is forced into the movement path of the slide (16) under the action of a spring (35), with a plate (31), on which the stop (30, 32) and/or the spring (35) are/is supported, and with an electromagnet (21, 22, 23), which is arranged outside the movement path of the slider (16) and with which the plate (31), located in its immediate vicinity, interacts,
   it being the case that the plate (31) is designed as an armature plate of the electromagnet (21, 22, 23), or is connected to the armature of the electromagnet (21, 22, 23), and is arranged in a common horizontal plane with the electromagnet (21, 22, 23) and the slider path and interacts with the electromagnet (21, 22, 23),
   characterized
   in that crosspiece peripheries (14, 15), which are oriented in accordance with the direction in which the pin (2a) engages through the slot (17) and bound the central chamber (12) for guiding the slider (16), are arranged, and in that the electromagnet (21, 22, 23) and the plate (31) are arranged in the chamber (11) and the slider (16) is arranged in the two other chambers (12, 13), and the force of the electromagnet (21, 22, 23) acts in the direction perpendicular to the plane of the door frame by the armature plate of the electromagnet (21, 22, 23) being arranged parallel to the plane of the door frame.
2. Arresting arrangement according to Claim 1,
   characterized in that the plane of the plate and/or the active surface of the electromagnet (21, 22, 23) are/is located parallel to the plane of the door frame.
3. Arresting arrangement according to Claim 2, characterized in that the plate (31) is located either on that side of the electromagnet (21, 22, 23) which is directed away from the movement path of the slider (16) or between the movement path of the slider (16) and the electromagnet (21, 22, 23).
4. Arresting arrangement according to Claim 3,
   characterized in that a guide device guides the plate (31) in the direction perpendicular to the plane of the door frame.
5. Arresting arrangement according to Claim 1,
   characterized in that the plate (31) is mounted such that it butts against the electromagnet (21, 22, 23) without a physical point of rotation.
6. Arresting arrangement according to Claim 1,
   characterized in that the moveable stop (30, 32) is mounted in a recess (24) of the electromagnet (21, 22, 23).
7. Arresting arrangement according to Claim 1,
   characterized in that the electromagnet (21, 22, 23) has a plurality of coils (22, 23), and in that the recess (24) is arranged in an interspace between the coils (22, 23).
8. Arresting arrangement according to Claim 1,
   characterized in that the stop (30, 32) is designed as a plastic injection moulding into which a spacer screw (33) which interacts with the bearing is inserted and in which the spring (35) engages.
9. Arresting arrangement according to Claim 4, characterized in that a sleeve (26) which is connected to the plate (31), is arranged in the recess (24) of the electromagnet (21, 22, 23) and is made of sliding material serves as the guide device for the stop (30, 32).
10. Arresting arrangement according to Claim 1,
    characterized in that the chamber (12, 13), in which a portion of the slider (16) is located, is formed integrally with the rail (3) or is clipped on as a screen (18).

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