EP3892802B1 - Door handle - Google Patents

Description

The invention relates to a door device with a door handle arrangement for a building door with a mortise lock.

The door handle arrangement of the door device considered here is used on building doors. Building doors can be any single-leaf or double-leaf door, in particular revolving doors, on or in buildings. A mortise lock is typically used in a building door. Therefore, a door handle with a spike is inserted into the nut of the mortise lock from one side of the door. On the opposite side, a complementary second door handle is attached to the mandrel and usually secured with a grub screw.

Depending on local conditions and passage widths, the door handle, e.g. B. with the door open, protrude into a passage area and be a hindrance. For example, clothing can get caught on the door handle or the passage area can be too narrow due to the door handle. This is particularly relevant, for example, if the door cannot be opened more than 90° and the door handle protrudes into the passage area as a result.

WO 03/064794 A1 shows a security lock for a cupboard, in which the door handle in the rest position closes with the front of the door of the cupboard and is locked by a locking element. The locking element can be pulled by actuating an electromagnet, whereby the door handle is released and pushed outwards by means of a spring, so that the door handle can be operated.

GB 666 937 A shows a handle assembly for doors of an aircraft. On an outside of this arrangement, the door handle can be recessed in order to offer the lowest possible air resistance. On the inside of the arrangement there is a knob with which the door can be opened from the inside.

It is therefore the object of the present invention to specify a door device with a door handle arrangement for a building door, which enables safe and practical operation of a door.

The task is solved by the combination of features of the independent claims. The dependent claims relate to advantageous configurations of the invention.

Within the scope of the invention, it was recognized that a retractable and extendable door handle on at least one side of a building door can enable safe and practical use of the door. In particular, this makes it possible to move the door handle into the retracted position when it is not in use, so that it does not protrude into a passage area, for example.

The invention shows a door device. The door assembly includes the building door, a follower mortise lock and a door handle assembly. The door handle assembly includes first and second door handles adapted to be located on two opposite sides of the building door. The door handles are preferably door handles. Door handles can also be referred to as doorknobs. In particular, the door handle has a gripping area that can be gripped by a user and pressed down. Because of this pressing down on the handle area rotates the door handle. This turning movement is transferred to the follower of the mortise lock, whereby the latch of the mortise lock can be retracted.

However, it is also provided that at least one of the two door handles is designed in some other way, for example as a knob. The knob is preferably rotatable so as to also rotate the follower of the mortise lock.

The door handle assembly also includes a spike member. This spike element can also be referred to as a "thorn" and performs the torque-transmitting function from the door handle assembly to the follower of the mortise lock. The nut of the mortise lock can in turn be designed as a square socket, as in conventional mortise locks. However, it is also provided within the scope of the present invention that the nut of the mortise lock is designed in some other way, in particular as any form-fitting element. The decisive factor is that the pin element of the door handle arrangement can be inserted into the nut of the mortise lock, thereby enabling a torque-transmitting connection between the pin element and the nut. In particular, it is provided that the mandrel element has a non-circular cross section, so that a positive torque transmission to the nut is made possible.

The mandrel element is "at least non-rotatably connected" to one of the two door handles. This means that in addition to the non-rotatable connection, the pin element can also be connected to this door handle in a linearly fixed manner, ie not in a linearly movable manner. In particular, the spike element can also be manufactured in one piece with this door handle. In addition, it is also possible that the mandrel element additionally with the other door handle is rotatably connected, so that the mandrel element can be rotated by actuating both door handles.

At least one of the two door handles can be moved into a retracted position and into an extended position. In the retracted position, the door handle or the handle area of the door handle is as close as possible to the mortise lock or the building door. In particular, the door handle cannot be grasped and cannot be used in the retracted position. In contrast to this, the door handle in the extended position is correspondingly far away from the mortise lock or the building door, so that the handle area of this door handle can be grasped and consequently used. Usable here means in particular that the door handle can be pressed by the user.

In particular, it is provided that the handle area of the movable door handle in the retracted position rests against a sign and/or the building door, in particular is sunk in the sign and/or the building door.

The two door handles can be slid into each other to adjust between the two positions. In particular, it is provided that one of the two door handles cannot be moved and the other door handle can be moved, so that the door handle on one side of the building door can be moved into the retracted and extended position, whereas the door handle on the other side of the building door cannot be moved - and is extendable.

Preferably, the door handle assembly includes an actuator assembly. The actuator arrangement is for moving at least one of the two door handles into the retracted position and/or into the extended position educated. The actuator arrangement is preferably located inside the door handle arrangement.

Both door handles preferably each comprise a grip area and a plug-in area. The two plug-in areas of the door handles plug into one another at least partially. In particular, it is provided that the actuator arrangement is located inside the two plug-in areas of the door handles.

The actuator arrangement can be designed to move the corresponding door handle in only one direction, i.e., for example, into the retracted or extended position, or can be designed to move the door handle in both directions, i.e. both into the retracted position and into the move to extended position.

Provision is preferably made for the actuator arrangement to include a push catch and/or a controllable unit.

The push catch is a component that is known, for example, from furniture construction. Such push catches are also referred to as furniture dampers with a push-to-open function.

The controllable unit is in particular an electromechanical, pneumatic or hydraulic unit.

The actuator arrangement can also include both: For example, in such a constellation, the controllable unit can be used to move the door handle into the retracted position and thereby tension the push catch. The push latch can then be relaxed again for movement into the extended position. The The push catch is arranged in particular in such a way that it is compressed when the door handle is moved into the retracted position, either by a user pressing on the door handle or by moving the door handle by means of the controllable unit. In particular, a spiral spring is compressed inside the push catch and held in this state. By pressing the door handle again or by another trigger impulse, the push catch relaxes again and moves the door handle into the extended position.

A nut axis is preferably defined on the door handle arrangement. When using the door handle arrangement in the mortise lock, this nut axis corresponds to the axis of rotation of the nut. In particular, the two plug-in areas of the door handles extend parallel to the nut axis. The movement between the retracted and extended position takes place in particular parallel to the nut axis.

The snap fastener described is preferably arranged parallel to the axis of the nut. The compression or relaxation of the pressure catch also takes place parallel to the nut axis.

The electromechanical, pneumatic or hydraulic unit for moving the door handle is preferably actuated by means of a control unit as part of the door device. The control unit can be located at the building door or anywhere else. The data connection between the control unit and the actuator arrangement can be wired or wireless.

The control unit can be used to activate and/or extend the door handle in any desired manner. In particular is provided that the control unit can detect a user's access authorization and controls the actuator arrangement in response to this access authorization.

The access authorization is detected by the control unit in particular by sending a corresponding signal from the user's smartphone to the control unit and/or by recognizing the user in some other way, for example via a fingerprint or an optical detection.

When the access authorization is recognized, the door handle can be moved accordingly via the control unit and the actuator arrangement.

Provision is preferably made for the first door handle to be connected to the pin element in a rotationally and linearly fixed manner or to be manufactured in one piece with the pin element. In this constellation, the first door handle does not move relative to the spike element. The second door handle is in the first door handle. Only the second door handle can be moved into the retracted position and into the extended position.

In this case, the spike element is preferably formed by an outer contour of the first door handle. This outer contour can be an integral part of the first door handle, in particular of the plug-in area of the first door handle. Alternatively, a member is placed on the outer periphery of the mating portion of the first door handle to form the spike member.

Both door handles are preferably plugged into one another in the region of the spike element. This means in particular that the two plug-in areas overlap at the level of the mandrel element.

Provision is preferably made for the first door handle to have an outer tube. This outer tube is located in particular in the plug-in area of the first door handle. The mandrel element is formed or arranged on the outside of the outer tube. Furthermore, the first door handle comprises an inner element arranged in the outer tube and an annular gap between the outer tube and the inner element. The inner element is in particular an elongate component inserted into the outer tube. The inner element and the outer tube are preferably connected to one another in a rotationally and linearly fixed manner, for example by means of a grub screw and/or a corresponding form fit. The second door handle is linearly movable in the annular gap.

The inner element is preferably hollow on the inside for receiving the actuator arrangement. The controllable unit and/or the pressure catch are preferably located in the inner element which is hollow on the inside. Because the hollow inner element is open towards the second door handle, the actuator arrangement can protrude out of the inner element in the direction of the second door handle and thereby move the second door handle relative to the first door handle.

The inner element preferably has an outer polygon. The second door handle, in particular in its hollow plug-in area, preferably has a polygonal socket seated in a rotationally fixed manner on the polygonal socket. This results in a connection between the two door handles that can be moved linearly along the nut axis but is non-rotatable. The mandrel element can be turned by means of both door handles.

In an alternative embodiment, it is provided that the second door handle is connected to the pin element in a rotationally and linearly fixed manner or is manufactured in one piece with the pin element. In particular, the plug-in area of the second door handle is designed as a spike or spike element. The second door handle is in the first door handle and only the second door handle can be moved into the retracted and extended position. The first door handle remains fixed relative to the mortise lock. In this variant, provision is made in particular for the spike element, ie in particular the plug-in area of the second door handle, to be inserted in a guide sleeve. The second door handle can be moved linearly along the nut axis in this guide sleeve, but is held in a rotationally fixed manner. The guide sleeve, in turn, is preferably fastened in the building door or on the mortise lock in such a way that it can be rotated but not moved linearly.

Furthermore, it is preferably provided here that the plug-in area of the second door handle has a slot. A guide pin is arranged in this slot. The guide pin, in turn, is fixed in the guide sleeve, so that the combination of guide pin and slot limits the linear movement of the second door handle. This ensures that the second door handle cannot be completely pulled out of the nut.

Furthermore, in this configuration, it is preferably provided that the plug-in area of the first door handle is hollow for receiving the plug-in area of the second door handle. In particular, the second door handle is linearly movable and non-rotatable in the first door handle, so that the mandrel element can be rotated by turning both door handles.

According to a preferred embodiment, the two door handles are designed in an arc shape. In particular, the respective grip areas merge directly and in an arc into the plug-in areas. The two arched door handles also fit into one another and at least one of the two door handles can be retracted and extended. During this movement between the retracted and extended positions, the two door handles are displaced or inserted into one another in an arcuate manner relative to one another, in particular along an arc of a circle.

In particular, it is provided that the door device includes the described control unit. In particular, the described actuator arrangement is located in the door handle arrangement, which can be controlled by the control unit.

Fig. 1

eine erfindungsgemäße Türvorrichtung mit Türgriffanordnung gemäß einem Ausführungsbeispiel in ausgefahrener Position,

Fig. 2

die erfindungsgemäße Türvorrichtung mit Türgriffanordnung gemäß dem Ausführungsbeispiel in eingefahrener Position,

Fig. 3

ein Einsteckschloss der erfindungsgemäßen Türvorrichtung,

Fig. 4

ein weiteres Einsteckschloss der erfindungsgemäßen Türvorrichtung,

Fig. 5

eine schematische Ansicht der Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß einer ersten Variante,

Fig. 6

eine schematische Ansicht der Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß einer zweiten Variante,

Fig. 7

eine Explosionsdarstellung der Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß einer dritten Variante,

Fig. 8

eine Schnittansicht zur Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß der dritten Variante,

Fig. 9

eine Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß einer vierten Variante,

Fig. 10

eine Explosionsdarstellung der Türgriffanordnung der erfindungsgemäßen Türvorrichtung gemäß der vierten Variante, und

Fig. 11

ein Türschild der Türgriffanordnung der erfindungsgemäßen Türvorrichtung.

The invention will now be described in more detail using exemplary embodiments. show:

1

a door device according to the invention with a door handle arrangement according to an exemplary embodiment in the extended position,

2

the door device according to the invention with a door handle arrangement according to the exemplary embodiment in the retracted position,

3

a mortise lock of the door device according to the invention,

4

another mortise lock of the door device according to the invention,

figure 5

a schematic view of the door handle assembly of the door device according to the invention according to a first variant,

6

a schematic view of the door handle assembly of the door device according to the invention according to a second variant,

7

an exploded view of the door handle assembly of the door device according to the invention according to a third variant,

8

a sectional view of the door handle arrangement of the door device according to the invention according to the third variant,

9

a door handle arrangement of the door device according to the invention according to a fourth variant,

10

an exploded view of the door handle assembly of the door device according to the invention according to the fourth variant, and

11

a door plate of the door handle arrangement of the door device according to the invention.

The following is based on the Figures 1 to 11 an exemplary embodiment of a door device 100 with a door handle arrangement 1 is described. Figures 1 to 4 show the basic structure for all variants of the door handle assembly 1 shown here Figures 5 to 10 become four different variants of the door handle assembly 1 shown. figure 11 shows a door sign 40 in detail, which can be used in all variants.

According to the figures 1 and 2 includes the door device 100 a building door 101, which can be used on or in a building. In the building door 101 is a mortice lock 102. Two possible configurations of the mortice lock 102 are in the Figures 3 and 4 shown.

Furthermore, the door device 100 includes the door handle assembly 1, which will be described in detail later. In the door handle arrangement 1, an actuator arrangement 7 can be used, which can be controlled via a control unit 109. The control unit 109 and the data connection to the door handle assembly 1 is in the figures 1 and 2 shown purely schematically.

The door handle assembly 1 comprises a first door handle 3 and a second door handle 4 on the two opposite sides of the building door 101. figure 1 shows an extended position of the second door handle 4. The second door handle 4 can be grasped and used. figure 2 shows the second door handle 4 in a retracted position. In this case, the second door handle 4 cannot be grasped and is therefore not usable.

Figures 3 and 4 show two possible configurations of the mortise lock 102. As usual, the mortise lock 102 includes a lock case 104, which is inserted into the building door 101 up to the stop of the forend 105. A nut 103 is provided in the lock case 104 and can be rotated about a nut axis 108 . In the interior of the lock case 104, which is not shown, the rotatable nut 103 is mechanical with a latch 106 and possibly also a bolt 107 connected. By turning the nut 103, the latch 106 and/or the bolt 107 can be moved.

figure 4 shows a typical embodiment of the nut 103 with an internal square into which a conventional mandrel with a square cross-section can be inserted along the nut axis 108 .

figure 3 makes it clear that, within the scope of the present invention, sockets 103 of a different design can also be used on mortise locks 102. Since at least one of the door handles 3, 4 can be inserted into the other door handle 3, 4, it can be advantageous to provide the largest possible cross-section in the area of the nut 103. So shows figure 3 that the mortise lock 102 can also have a relatively large nut 103 with any desired cross-section designed to transmit a form-fitting torque.

In the Figures 5 to 8 the first door handle 3 is firmly connected to a mandrel element 2 or designed in one piece. Correspondingly, the second door handle 4 is inserted in the first door handle 3 and can be moved parallel to the nut axis 108 into the retracted position and the extended position.

The mandrel element 2 is inserted into the nut 103 and is non-rotatably connected to the nut 103 due to the cross sections of the mandrel element 2 or the nut 103 .

The two door handles 3, 4 each have a handle area 5 and a plug-in area 6. The two plug-in areas 6 of the door handles 3, 4 plug into one another in a linearly movable manner.

In the variant after figure 5 the outer contour of the entire plug-in area 6 of the first door handle 3 forms the spike element 2.

Both plug-in areas 6 are hollow on the inside and plug into one another. Due to the hollow configuration, the actuator arrangement 7 shown purely schematically can be arranged inside the two plug-in areas 6 .

In all of the variants shown here, the actuator arrangement 7 includes the push button and/or the controllable unit described in the general part of the description.

figure 6 shows another variant in a purely schematic representation. In this variant, the two door handles 3, 4 are curved and also plug into each other. When the second door handle 4 is extended and retracted, the two door handles 3, 4 are inserted into one another or pulled apart relative to one another along an arc, in particular an arc of a circle. Due to the arcuate configuration, the handle areas 5 in the two door handles 3 , 4 merge directly into the plug-in areas 6 . When moving into the retracted position, the plug-in area 6 or the handle area 5 of the second door handle 4 can dip into the entire first door handle 3 , ie both into the handle area 5 and into the plug-in area 6 of the first door handle 3 .

Furthermore, the illustration in figure 6 that the mandrel element 2 is not as in figure 5 must be formed directly by the outer contour of the first door handle 3, but can also be formed by an attached or otherwise applied element.

The Figures 7 and 8 show another variant of the door handle assembly 1. In contrast to the schematic representations in the Figures 5 and 6 is the construction in the Figures 7 and 8 shown in much more detail. figure 7 shows an exploded view of the door handle assembly 1. figure 8 shows a corresponding sectional view. The two Figures 7, 8 show that the first door handle 3 has an outer tube 20 which essentially represents the plug-in area 6 of the first door handle 3 . The mandrel element 2 is located on this outer tube 20. This mandrel element 2 fits, for example, into the nut 103 of the mortise lock 102 according to FIG figure 3 .

The outer tube 20 is hollow on the inside for receiving an inner element 21 . The inner element 21 is inserted in the bottom of the outer tube 20 in a form-fitting manner and is secured by means of a grub screw 25 . As a result, the inner element 21 is connected to the outer tube 20 in a rotationally as well as linearly fixed manner.

An annular gap 22 is formed between the outer tube 20 and the inner element 21 . The plug-in area 6 of the second door handle 4 is also hollow and is inserted in the annular gap 22. As a result, the inner element 21 protrudes into the plug-in area 6 of the second door handle 4.

The inner element 22 has an outer polygon 23 . The plug-in area 6 of the second door handle 4 has a polygonal socket 24 . The outer polygon 23 and inner polygon 24 are plugged into one another so that they can move linearly, so that the two door handles 3 , 4 are non-rotatable with respect to one another, but are linearly moveable along the nut axis 108 . A ring lock 26 fastened to the plug-in area 6 of the second door handle 4 serves as a guide and/or protection against being pulled out.

The inner element 21 is preferably hollow for receiving the actuator arrangement 7 and in the direction of the second Door handle 4 open, so that the actuator arrangement 7 can protrude from the inner element 21.

Figures 9 and 10 show a further variant of the door handle arrangement 1. In this variant, the second door handle 4, ie the movable door handle, is connected to the pin element 2 in a rotationally and linearly fixed manner or is formed in one piece. As the illustrations in Figures 9 and 10 show, in particular the entire plug-in area 6 of the second door handle 4 is designed as a spike element 2 . The plug-in area 6 of the first door handle 3 has a corresponding cavity for plugging in the spike element 2 . In particular, the connection between the spike element 2 and the first door handle 3 is linearly movable and non-rotatable, so that the spike element 2 can be rotated via both door handles 3 , 4 .

A guide sleeve 30 is preferably provided here. The guide sleeve 30 is located inside the door leaf, in particular between the mortise lock 102 and the escutcheon 40.

The mandrel element 2 can move linearly in the guide sleeve 30, but is guided in a rotationally fixed manner. Provision is preferably made for the mandrel element 2 to have a slot 32 for securing against being pulled out. A guide pin 33 is arranged in this slot 32 and is in turn firmly connected to the guide sleeve 30 . As a result, the length of the slot 32 limits the linear mobility of the second door handle 4.

On the immovable first door handle 3 there is preferably a clamping sleeve 31, by means of which the first door handle 3 can be rotatably but linearly fixed to the building door 101 or the mortise lock 102.

figure 11 shows a possible construction of the plate 40 for all variants presented here. The plate 40 covers, as usual, the openings in the door leaf leading to the mortise lock 102 . The shield 40 has a through hole 41 through which the plug-in area 6 of the second door handle 4 protrudes. A handle recess 42 is provided in the area of this through-hole 41 . In particular, the handle recess 42 is an area of the shield 40 of reduced thickness. The thickness is measured here parallel to the nut axis 108. The shape of the handle recess 42 corresponds to the shape of the handle area 5 of the second door handle 4. Such as, for example figure 2 clarified, the handle area 5 dives into this handle recess 42 of the sign 40 in the retracted position, so that the second door handle 4 can be positioned as close as possible to the building door 1 .

Reference List

1

door handle assembly

2

spike element

3

First door handle

4

Second door handle

5

grip area

6

mating area

7

actuator arrangement

20

outer tube

21

interior element

22

annular gap

23

external polygon

24

internal polygon

25

grub screw

26

ring clasp

30

guide sleeve

31

collet

32

slot

33

guide pin

40

Sign

41

through hole

42

handle recess

100

door device

101

building door

102

mortise lock

103

nut

104

lock box

105

forend

106

Cases

107

bars

108

nut axle

109

control unit

Claims (14)

1. A door device (100) with a building door (101), a mortise lock (102) with follower (103) in the building door (101) and a door handle arrangement (1), the door handle arrangement (1) comprising:

   • a first and a second door handle (3, 4) designed to be arranged on two opposing sides of the building door (101),

   • a pin element (2) connected at least in a rotationally-fixed manner to one of the two door handles (3, 4) for insertion into the follower (103) of the mortise lock (102),

   • wherein at least one of the two door handles (4) can be moved into a retracted position and into an extended position, wherein the door handle (4) can be grasped and used in the extended position, in contrast to the retracted position,

   • wherein the two door handles (3, 4) insert into one another in a displaceable manner for adjustment between the retracted position and the extended position.
2. The door device according to claim 1, wherein both door handles (3, 4) are designed as door levers.
3. The door device according to one of the preceding claims, wherein the two door handles (3, 4) are connected to one another in a rotationally-fixed manner such that the pin element (2) can be rotated with both door handles (3, 4).
4. The door device according to one of the preceding claims, comprising an actuator arrangement (7) for moving at least one of the two door handles (4) into the retracted position and/or into the extended position.
5. The door device according to claim 4,

   • wherein the actuator arrangement (7) comprises a push catch inside the two door handles (3, 4), which can be compressed when being adjusted into the retracted position and is released when being adjusted into the extended position,

   • and/or wherein the actuator arrangement (7) comprises an actuatable electromechanical, pneumatic or hydraulic unit.
6. The door device according to one of the preceding claims, wherein the first door handle (3) is connected to the pin element (2) in a rotationally- and linearly-fixed manner or is manufactured in one piece with the pin element (2) and the second door handle (4) inserts in the first door handle (3), wherein only the second door handle (4) can be moved into the retracted position and into the extended position.
7. The door device according to claim 6, wherein the pin element (2) is formed by the outer contour of the first door handle (3).
8. The door device according to one of claims 6 or 7, wherein the two door handles (3, 4) insert into one another in the region of the pin element (2).
9. The door device according to one of claims 6 to 8, wherein the first door handle (3) has an outer tube (20) with the pin element (2), an inner element (21) arranged in the outer tube (20) and an annular gap (22) between the outer tube (20) and the inner element (21), wherein the second door handle (4) is inserted in a linearly movable manner in the annular gap (22).
10. The door device according to claims 4 and 9, wherein the inner element (21) is hollow for receiving the actuator arrangement (7).
11. The door device according to one of claims 9 or 10, wherein the inner element (21) has an outer polygon (23) and the second door handle (4) has an inner polygon (24) sitting in a rotationally-fixed manner on the outer polygon (23).
12. The door device according to one of claims 1 to 5, wherein the second door handle (4) is connected to the pin element (2) in a rotationally- and linearly-fixed manner or is manufactured in one piece with the pin element (2) and the second door handle (4) inserts in the first door handle (3), wherein only the second door handle (4) can be moved into the retracted position and into the extended position.
13. The door device according to one of the preceding claims, wherein the two door handles (3, 4) are arched and can be displaced relative to one another in an arched manner, in particular along a circular arc, during the adjustment between the retracted position and the extended position.
14. The door device according to one of the preceding claims, comprising a control unit (109) and the actuator arrangement (7), wherein the actuator arrangement (7) is actuated by the control unit (109) for moving at least one of the two door handles (3, 4) into the retracted position and/or into the extended position.

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