EP3604719B1 - Hand lever - Google Patents

Description

The invention relates to a hand lever according to the preamble of claim 1 and a method for operating one or a group of hand levers. A drive rod fitting of a window or French door is driven with the hand lever and allows at least one open and one closed position to be set. In the case of a tilt and turn fitting, two opening positions can be set.

the WO 2014/152240 A1 reveals a lock with a lock follower and an actuator. The lock follower, which is rotatably mounted in the housing, has a radial locking recess. A pawl, which can be actuated by the actuator, engages in this. If the pawl is engaged, then a handle coupled to the lock follower is locked against rotation.

From the DE 29913939 U1 a hand lever is known. The known hand lever has a rotatable handle part and an electrically activatable blocking device which blocks rotation of the handle part relative to a rosette forming the pivot bearing of the handle part.

From the DE 20000320 U1 a locking device for opening and closing windows and doors has become known, which has a locking disk non-rotatably connected to a polygonal pin. The locking disk is assigned an actuator which locks the locking disk in one direction of rotation by means of an electrical activation signal. This is to prevent unwanted operation of the window or door.

the DE10114214A1 discloses a control device for access or operation authorization for doors or windows. A sensor for checking the access authorization and a release device, which is fitted in a lock, are provided here.

the DE 8705383 U1 shows an electromechanically lockable hand lever. A locking slide is provided in the rosette, which can be moved via an electromagnet. A sensor is also provided, but it only detects the position of the locking slide and not the lever. A control center is only mentioned in general terms.

None of the above configurations are able to meet the desire for a locking system for one or a group of windows that is easy to operate and set up.

To solve this problem, it is provided that the control device is connected to the sensor unit, and the transmitter device allows the transmission of the data of the sensor device and the receipt of activation and deactivation commands for the actuator of the control device and at least one sensor unit is provided which determines the rotational position of the handle part relative to the fastening device. The arrangement makes it possible to prevent unauthorized handling of the hand lever via the sensor and the actuator and to allow only permitted operations.

In order to achieve a simple and at the same time effective locking, it is provided that a displaceable locking sleeve, which interacts with the actuator, is effective between the handle part and the fastening device in the locking position. As a component, the locking sleeve is easy to store on the neck of the handle and requires little installation space when absorbing large amounts of force.

A simple first embodiment provides that the actuator acts on a displaceable pin, which acts on the switching sleeve, which interacts with the locking sleeve.

It is provided in the first exemplary embodiment that the switching sleeve is provided with an actuating edge running parallel to the handle neck and an inclined ramp-like actuating edge lying offset thereto. The switching sleeve is moved via these actuation edges.

It is also provided that the actuating edge interacts with a coiled inner wall of the bell in order to set the switching sleeve in rotation.

For this purpose, it is also provided that the pin moves back into an actuating position through the switching sleeve by means of a spring when the switching sleeve is axially displaced.

In order to be able to carry out specific actuations on the hand lever, it is provided that the handle part or the fastening device has a button that can be actuated manually.

The invention also includes a method for operating one or a group of hand levers, containing a request triggered by pressing the button to the control device, and possibly forwarding to an existing control center and determining a status as to whether the locking device can be deactivated and the receipt of a Response and, if necessary, deactivation of the blocking device. As a result, a hand lever can only be actuated manually if a corresponding release is provided for the hand lever.

Provision is also made for the control device of the or each hand lever to activate the locking device after a determinable time interval has elapsed by retracting the actuator and longitudinally displacing the locking sleeve. As a result, the lever can only be actuated shortly after a request to the control center and is blocked again after the time interval has elapsed.

In order to achieve the greatest possible security, it is provided that an initialization process includes a search for a control center and in doing so sends two consecutive requests, namely an encrypted request and an unencrypted request, and if an encryption-capable communication interface is present, only uses this for communication.

In order to be able to use the controller even in the presence of a control center that communicates in unencrypted form, it is provided that the communication takes place in unencrypted form in the presence of a control center that communicates in unencrypted form.

Finally, if there is no feedback from a control center, provision should be made for the control device to switch to a single handle mode. In the intervention mode, only a single hand lever is provided without a control center, so that the control device takes over this task.

Fig. 1

eine Explosionsdarstellung eines erfindungsgemäßen Handhebels,

Fig. 2

einen Längsschnitt durch einen Hebel in entriegelter Stellung,

Fig. 3

einen Querschnitt entlang der Linie III-III in Fig. 2,

Fig. 4

eine räumliche Darstellung des Hebels nach Fig. 2 und 3 mit einem Ausbruch der Befestigungseinrichtung,

Fig. 5

eine Darstellung entsprechend Fig. 4 mit eingefahrenem Aktor,

Fig. 6

eine Darstellung entsprechend Fig. 4 und 5, mit verriegeltem Griff, mit teilweise verdrehter Sperrhülse,

Fig. 7

eine Explosionsdarstellung eines zweiten Ausführungsbeispiels,

Fig. 8

einen Längsschnitt des Handhebels nach Fig. 7 in verriegelter Stellung,

Fig. 9

eine Darstellung nach Fig. 8 mit einem versetzten Schnittverlauf durch den Aktor,

Fig. 10

eine dreidimensionale Darstellung des zweiten Ausführungsbeispiels mit entriegeltem Griffteil,

Fig. 11

eine Darstellung nach Fig. 10 mit zurückgezogenem Aktor bzw. Anschlag und entriegeltem Griffteil,

Fig. 12

eine Darstellung nach Fig. 11, mit verriegeltem Griffteil,

Fig. 13

eine Draufsicht auf die Platine 15 mit der Schaltstellungserfassung,

Fig. 14

einen Schnitt entlang der Linie XIV-XIV in Fig. 12, bei dem nur die Glocke und das Griffteil im Schnitt dargestellt sind,

Fig. 15

ein Ablaufdiagramm, welches die Steuerungsabläufe verdeutlicht, und

Fig. 16

den Initialisierungsvorgang, der sich unmittelbar an die Montage des Handhebels anschließt.

Further advantageous configurations result from the drawings. It shows:

1

an exploded view of a hand lever according to the invention,

2

a longitudinal section through a lever in the unlocked position,

3

a cross-section along the line III-III in 2 ,

4

a spatial representation of the lever Figures 2 and 3 with a rupture of the fastening device,

figure 5

a representation accordingly 4 with retracted actuator,

6

a representation accordingly Figures 4 and 5 , with locked handle, with partially twisted locking sleeve,

7

an exploded view of a second embodiment,

8

a longitudinal section of the hand lever 7 in locked position,

9

a representation after 8 with a staggered cut through the actuator,

10

a three-dimensional representation of the second exemplary embodiment with the handle part unlocked,

11

a representation after 10 with retracted actuator or stop and unlocked grip part,

12

a representation after 11 , with locked grip part,

13

a top view of the circuit board 15 with the switch position detection,

14

a section along the line XIV-XIV in 12 , in which only the bell and the handle part are shown in section,

15

a flowchart that explains the control processes, and

16

the initialization process, which immediately follows the assembly of the hand lever.

1 shows a hand lever 1 for a window or door. The hand lever 1 consists of a rotatably mounted handle part 2 and a fastening device 3 on the sash or frame in the form of a rosette. The handle part 2 is a polygonal pin 4 with a - coupled rod drive - not shown here. A latching device 5 between the fastening device 3 and the handle part 2 is effective for indicating handle positions. This consists of locking balls 6 mounted in the fastening device 3 axially to the axis of rotation of the handle part 2 , which are subjected to a force by springs 7 and dip into locking recesses on the handle part 2 . A locking device effective between the handle part 2 and the fastening device 3 is also provided. This consists of a locking sleeve 9 and a switching sleeve 10, with the locking device preventing a rotary movement of the handle part 2 relative to the fastening device 3 in the activated state. The blocking device 8 has an actuator 11 that can be activated by means of electrical energy. The actuator 11 is a miniature electric motor, which moves a stop 12 longitudinally by means of a gear.

The stop 12 interacts with the locking sleeve 9 and the switching sleeve 10, as will be shown. The blocking device is connected to a control device 13, the control device 13 comprising a transmitter/receiver device 14 which communicates with a possible control center--not shown here. As will be shown later, the control center can communicate with each control device 13 and can thus also communicate with a number of hand levers 1 . The control device 13 is arranged on a circuit board 15 which is accommodated in the fastening device 3 . Replaceable energy stores 16 are also provided on circuit board 15 and a sensor unit in the form of a pair of microswitches 17 and a button 18 is also provided. The pair of microswitches 17 interacts with a disk 19 and allows the position of the handle part 2 relative to the fastening device 3 to be determined. On the circuit board 15, the control device 13 and the pair of microswitches 17 are connected to the sensor unit, so that the transceiver 14 detects the switching position determined by the control device 13 from data from the sensor device. On the one hand, the transmitter/receiver device 14 allows activation and deactivation commands for the actuator 11 of the control device 13 to be received and enables the rotational position of the handle part 2 to be transmitted. The control device can also transmit status information about the handle, such as battery and alarm statuses, to the control center via the transmitting and receiving device.

A cover plate 20 is provided to protect the circuit board 15 . A cap 21 covers the fastening device 3 and allows the color to be matched.

2 shows the structure of the fully assembled hand lever 1 in a longitudinal section. A bearing sleeve 27 provides mutual support near the bell roof. The polygonal pin 4 is accommodated in a receptacle 28 of the handle neck 25 and secured with a screw 29 . The outside diameter 30 of the handle neck 25 is provided with axial grooves and the locking sleeve 9 is mounted on the outside diameter 30 in a displaceable but non-rotatable manner. The switching sleeve 10 surrounds the locking sleeve 9 and is subjected to a force together with this via the thrust washer 31 and the spring 32 acting on it in the direction of a bell roof 33 . The thrust washer 31 is connected to the locking sleeve 9 in a fixed and axially non-displaceable manner by means of a detent and can transmit compressive and tensile forces. The pressure washer 31 thus acts on the switching sleeve 10 and the locking sleeve 9 equally and the switching sleeve 10 engages under a toothed ring 34 of the locking sleeve 9. The toothed ring 34 is dimensionally and in its outer contour matched to the inner contour of the bell roof 33, and has at least two protruding teeth , which engage in only two rotational positions in recesses of the bell roof 33 and the locking sleeve 9 and the bell roof 33 rotatably can connect with each other. Between these positions, the teeth rest on the edge of the bell roof 33 and prevent engagement. Deviating from this, a wider tooth dimension can also be selected. In both versions it is achieved that the projecting teeth of the ring gear 34 abut against the bell roof 33 and prevent engagement in other rotational positions.

In the in the Figs. 2 and 3 shown unlocked position, the locking sleeve 9 is disengaged from the bell roof 33, so that the handle part 2 relative to the fastening device 3 is freely rotatable. From the 3 it is still clear that a pin 35 is provided in the fastening device 3 in the area of the switching sleeve 10 . The pin 35 is aligned tangentially to the shift sleeve 10 and acts like 4 is clear, over the longitudinal edge 36 of a peripheral recess 38 with the actuating edge 39 of the switching sleeve 10 together. While the actuating edge 39 runs axially to the polygonal pin 4, the actuating edge 40 forms a ramp. The end 41 of the pin 35 abuts against a stop 12 . in the, in 4 shown unlocked position, the ring gear 34 is not in engagement with the bell roof 33, so that the handle part 2 is freely rotatable.

If the actuator 11 is retracted, based on the results 4 the position of the components figure 5 . The stop 12 has moved back into the actuator 11 . The pin 35 is freely movable in a bore in the fastening device 3 and both the switching sleeve 10 and the locking sleeve 9 are pushed upwards in the illustration by the spring 32 and the locking sleeve 9 is caused by the simultaneous positive engagement of the ring gear 34 in the Lock bell roof 33. In the bell roof 33 are on the inner wall 43 ( 3 ) inclined projections 44 are provided, which cooperate above the plane of the pin 35 with the ramp (actuating edge 40). The switching sleeve 10 is thereby set in rotation during an upward movement and pushes the pin 35 towards the actuator 11 .

This final state is in the 6 shown. The actuator 11 is fully retracted here and the end 41 of the pin 35 rests against the stop 12 . The locking sleeve 9 is engaged with the ring gear 34 in an internal toothing 45 of the bell roof 33 and the handle part 2 is fixed by the form-fitting engagement of the locking sleeve 9 on the handle neck 25 and the bell roof 33 . Actuation is not possible.

The exemplary embodiment therefore provides that the handle part 2 is locked by the interaction of the switching sleeve 10 with the locking sleeve 9 and the circumferential teeth of the handle neck 25 and the inner teeth 45 of the bell roof 33 . The locking sleeve 9 is longitudinally displaceable on the handle neck 25 and along this axis through the switching sleeve emotional. The actuator 11 acts on the switching sleeve 10 and allows the handling of the handle 1.

In the 7 and 8th a second embodiment is shown. The structure largely corresponds to the known structure according to the first exemplary embodiment. The arrangement of the actuator 11 is different, which is arranged parallel to the axis of rotation of the handle part 2 and is seated in a radial bulge 50 of the dome-like bell 26 . Here, too, the locking sleeve 9 is subjected to a force by means of a spring 32 and this is supported on the disc 19 . Analogously to the first exemplary embodiment, the locking sleeve 9 is mounted on the handle neck 25 in a rotationally fixed but longitudinally displaceable manner.

Figures 8 and 9 show that the locking sleeve 9 is in the locking position with the ring gear 34 in engagement with the recess in the bell roof 33. The locking sleeve 9 has a flange 52 at its lower end, which serves as an abutment for the spring 32 and forms a stop for a driver 53 of the actuator 11 . The driver 53 and the flange 52 are matched to one another in such a way that the locking sleeve 9 enables an axial displacement of the locking sleeve 9 above the flange 52 and a rotational movement of the locking sleeve 9 is also possible. The disengagement and engagement of the locking sleeve 9 is controlled via the actuator 11, which acts directly on the locking sleeve 9 with the driver 53. The driver 53 is designed in such a way that it can only move the locking sleeve 9 into the unlocked position. The locking sleeve 9 is in the locked position by the spring 32 .

the Figs.10 and 11 show the hand lever 1 according to the second embodiment in an unlocked position. In 10 it can be seen that the actuator 11 with the driver 53 pushes the locking sleeve 9 downwards. The spring 32 is tensioned. The locking sleeve 9 is prevented with its teeth 56, 57 of the ring gear 34 from engaging in the internal toothing 45 above the step 55 of the bell roof 33, so that the handle part 2 can be pivoted by at least a small angle. The actuator 11 is retracted again and due to the slight change in angle of the handle part 2, the in 11 position shown. The circumferential dimension of tooth 56 along the pitch circle of ring gear 34 is wider than tooth 57, so that tooth 56 cannot penetrate into internal toothing 45 until the right position for tooth 57 is found and ring gear 34 is therefore on the Stage 55 grinds until tooth 56 has been rotated through 180°. 14 shows a section of the arrangement of the ring gear 34 in FIG 12 indicated sectional plane, in which only the essential parts of the engagement of the locking sleeve are shown in section. Provide the bell roof 33 with the internal toothing 45. The intermeshing teeth 56, 57 in the locked position are placed to fit engagement 58, 59 respectively and tooth 56 does not fit in the engagement 59. The locking sleeve 9 can therefore only engage in the internal toothing 45 in a 0° and a 180° position.

in the in 13 The section shown shows the disk 19 interacting with the pair of microswitches 17 mounted on the circuit board 15 . There are two switches which are at an angle of 180° to one another and have a button 60 on the disc 19 . The disk 19 has a recess 61 into which the button 60 engages, thereby opening or closing a circuit. Since the switches 17 are diametrically opposed, the 0° position (locked position), the 180° position (tilt open position) and the 90° position (turn open position) can be determined by means of the microswitch. For the last switching position, it is decisive that none of the microswitches 17 is actuated. Instead of the microswitch 17, Hall sensors or optical sensors can also be used.

Both configurations permit the operation of one or more hand levers 1 as follows: In the normal state, the lever is locked, i.e. the locking sleeve 9 engages in the internal toothing 45 of the bell roof 33.

Using the flow chart in 15 should this be explained. If the hand lever 1 is now to be actuated, then the button 18 is actuated (button actuation 65). As a result, the sleep mode of the control device 13 is interrupted and the control device 13 sends a request 66 to a control center, together with an identification number. of the hand lever 1. The control center then answers the query using the identification number. of the hand lever 1 and the authorization 67 released for the time. If the hand lever 1 is released at the specified time, the control center sends a release signal 68 to the hand lever 1 and the control device 13 energizes the actuator 11. This unlocks the handle part 2 and the Hand lever 1 can be actuated. If the handle part 2 is only rotated through an angle of less than 180°, then the ring gear 34 does not engage in the bell roof 33 since the two radially further projecting teeth prevent it from plunging into the bell roof 33 . The control device 13 recognizes that one or no switch of the pair of microswitches 17 is actuated and sends a message 69 to the control center. After a period of time, the interrogation 70 of the pair of microswitches 17 is repeated cyclically and a control signal 71 is sent once to the actuator 11, which returns to its initial position.

For example, if the hand lever is assigned to a tilt and turn window, the sash can be opened by turning it. For this purpose, the grip part 2 is pivoted through 90° and the grip part 2 is not locked because the locking sleeve 9 cannot dip into the internal toothing 45 of the bell roof 33 . If the sash is to be closed again, the sash can brought up to the frame and the hand lever 1 in rotated back by 90° or by another 90°. As a result, the espagnolette fitting reaches either its locking or tilting gap position. In these two positions, the locking sleeve 9 engages in the bell roof 33 under the influence of the spring 32 and locks the handle part 2 against further actuation. The control device 13 enters the standby mode and waits for further button actuations 65.

After a defined time elapses, the control device 13 lets the actuator 11 run back. The spring 32 then moves the control sleeve 10 or, in the second exemplary embodiment, directly the locking sleeve 9.

Only after the button 18 has been actuated again and a request to the control center and release of the same is the handle part 2 released again and can be actuated.

If the handle part 2 is rotated by 180° after being released by the control center, the two protruding teeth move back into the receptacles in the bell roof 33 dimensioned for this purpose, and the handle part 2 is thereby locked.

Therefore, a tilt and turn window can be brought from the locked position immediately into the tilted position and locked there. If the leaf is to be opened by turning it from there, the handle part 2 can be swiveled back by 90° after the request has been made by means of the button 18 and the release has then taken place. Here, too, the locking sleeve 9 does not snap into the bell roof 33, but remains in front of it due to the special design described above of two teeth and grinds on the edge.

The embodiment described above therefore causes the handle part 2 to be automatically locked again in the two locking positions, closed position and tilt locking position, after actuation and cannot be locked in the rotary/open position.

The method already outlined above for operating one or a group of hand levers therefore contains a request to the control device 13 triggered by actuation of the switching element. If only one hand lever 1 of the type described above is provided in the building and no control center for several hand levers 1, then the in the authorization stored in the control device 13 as to whether the hand lever 1 may be unlocked. The stored conditions are time-controlled and can be programmed by an external device. The external device is preferably an already existing device with radio data transmission and allows the execution of a corresponding one administration program, which allows the input and transmission of corresponding data.

If several hand levers 1 are provided, then the hand lever 1 to be controlled is selected using a uniquely assigned address or ID. If there is a control center and the hand lever or levers 1 is or are set up for two-way communication, then when the button 18 is actuated, the current switching position of the handle part 2 is transmitted to the control center together with the query as to whether the locking device can be deactivated. The control center evaluates from which hand lever 1 the request was made and sends a response. Depending on the authorization, the answer can result in the deactivation of the blocking device.

To put the hand lever 1 into operation, the following procedure ( 16 ) intended:
When the control device 13 is energized for the first time, a counter 75 in a permanent memory is set to one. The control device 13 can now assume an initial setup and queries a reset status in a query 76 . If a reset has been triggered, then the control device 13 generates an encrypted request signal 77 and sends it out. A query 78 in the control center awaits a response from the same. If no control center responds, the control device 13 generates an unencrypted signal in the generator 79 and waits for an answer in the query 80. If the control device 13 does not receive an answer, it assumes a single hand lever 1 and sets the communication mode "stand-alone" or Single grip mode 81 fixed. The authorizations in the control device 13 are therefore decisive for the operation and this is stored in the permanent memory, so that an initialization process includes a search for a control center and two requests, namely an encrypted request and an unencrypted request are sent and only if there is an encryption-capable communication interface used for communication.

If the control device 13 receives an answer in the query 80, then the communication mode control center 82 is activated and the communication takes place unencrypted.

If the query 78 is answered positively by a control center, then the control device 13 defines the communication mode control center encryption 83 . The control center and the control device now only communicate in encrypted form.

Each of the three modes mentioned above is stored in the control device 13 and retrieved from a memory 84 if the reset status is negative and no reset was triggered.

The operating mode is stored in a function memory 85 .

The method described above prevents the hand lever 1 from being reset into an open state on site. If the window is closed, the cap 21 cannot be removed and therefore the batteries cannot be removed. The hand lever is thus secured against manipulation on site.

Reference List

1

hand lever

2

handle part

3

fastening device

4

polygon pin

5

locking device

6

detent ball

7

feather

9

locking sleeve

10

switch sleeve

11

actuator

12

attack

13

control device

14

Transmitting/receiving device

15

circuit board

16

energy storage

17

pair of microswitches

18

button

19

disc

20

cover plate

21

cap

25

grip neck

26

Bell jar

27

bearing sleeve

28

admission

29

screw

30

outer diameter

31

thrust washer

32

feather

33

bell roof

34

sprocket

35

pen

36

long edge

38

circumferential recess

39

actuation edge

40

actuation edge

41

end

43

inner wall

44

head Start

45

internal teeth

50

bulge

52

flange

53

driver

55

step

56

tooth

57

tooth

58

intervention

59

intervention

60

button

61

recess

65

button actuation

66

inquiry

67

authorization

68

release signal

69

report

70

query

71

control signal

75

counter

76

query

77

request signal

78

inquiry

79

generator

80

query

81

Stand alone mode

82

Control center mode unencrypted

83

Encryption control center mode

84

Storage

85

function memory

Claims (11)

1. A hand lever (1) for a window or a door, wherein the hand lever (1) comprises a pivoted handle part (2) and a fastening device (3) at the casement or frame, the handle part (2) can be coupled with a connecting rod drive, and a locking device operative between the handle part (2) and the fastening device (3) is provided, wherein the locking device, in its activated state, prevents a rotary movement of the handle part (2) relative to the fastening device (3), the locking device has an actuator (11), which can be activated by means of electrical energy, and the locking device is connected with a control device (13), wherein the control device (13) comprises a transmitting device, which communicates with a possible control center, wherein the control center communicates with each control device (13),

   wherein the control device (13) is connected with sensors (17), and wherein the transmitting device permits transmission of the data of the sensors (17) and enables receipt of activation and deactivation commands for the actuator (11) of the control device (13) and at least one sensor (17) determines the rotational position of the handle part (2) relative to the fastening device (3),

   characterized in that,

   a slidable locking sleeve (9) is operative between the handle part (2) and the fastening device (3) in its locking position, which sleeve interacts with the actuator (11).
2. The hand lever according to claim 1,
   characterized in that
   the actuator (11) acts on a slidable pin (35), which in turn acts on the switching sleeve (10), which interacts with the locking sleeve (9).
3. The hand lever according to claim 2,
   characterized in that
   the switching sleeve (10) is provided with an actuation edge (39) running in parallel to the handle neck (25) and a ramp-like actuation edge (40) offset therefrom and inclined thereto.
4. The hand lever according to claim 3,
   characterized in that
   the actuation edge (40) interacts with a coiled inner wall (43) of the cover (26).
5. The hand lever according to claim 4,
   characterized in that,
   upon axial displacement of the switching sleeve (10) by means of a spring (32), the pin returns into an actuating position by the switching sleeve (10).
6. The hand lever according to any one of claims 1 to 5,
   characterized in that
   the handle part (2) or the fastening device (3) has a manually actuatable switching element (18).
7. A method for operating one or a group of hand levers according to claim 6, comprising a request to the control device (13) triggered by actuation of the switching element (18), and, if applicable, passing on to an existing control center and determination of a status, whether the locking device can be deactivated, and receipt of a response and, if applicable, deactivation of the locking device.
8. The method according to claim 7,
   characterized in that,
   upon expiry of a definable time interval, the control device (13) of the or each hand lever (1) activates the locking device by actuating the actuator (11) and longitudinal displacement of the locking sleeve (9).
9. The method according to claim 8,
   characterized in that
   an initialization process comprises a search for a control center and in that sends two requests, namely an encrypted request and an unencrypted request, and, upon presence of an encryption enabled communications interface, only uses this one for communication.
10. The method according to claim 9,
    characterized in that,
    upon presence of a control center communicating without encryption, communication is undertaken without encryption.
11. The method according to claim 9 or 10,
    characterized in that,
    lacking a response from a control center, the control device switches into a single handle mode (81).

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