EP3483373A1 - Door closer - Google Patents

Abstract

The invention relates to a door closer (14), in particular a slide rail door closer, for a door leaf (10), wherein the door closer (14) has a closing hydraulics (22) for setting a closing speed of the door leaf (10). The closing hydraulic system (22) has a first fluid path (E) with a first fluid flow regulating valve (36) through which fluid flow flows during closing of the door leaf (10) within a first door angle closing area (A) of the door closer (14). The closing hydraulic system (22) has a second fluid path (F) with the first fluid flow regulating valve (36) and a second fluid flow regulating valve (38), through which a fluid flow during closing of the door leaf (10) within a second Türwinkelschließbereichs (B) the door closer (14) flows on, wherein by means of the second fluid flow regulating valve (38) a closing speed change, in particular closing delay, of the door closer (14) which can be engaged with respect to the first door angle closing area (A) can be set within the second door angle closing area (B).

Description

The invention relates to a door closer, in particular a slide rail door closer, for a door leaf.

From the EP 1 362 155 B1 is a sliding rail door closer known. The slide rail door closer has a guided in a housing, supported against a closing spring piston and an eccentrically rotatably mounted on the housing, meshing with a rack of the piston pinion.

The DE 20 2008 005 721 U1 discloses a door closer with hydraulic closing delay. The door closer has a can be coupled to a door closer shaft, which is rotatable from a closed position in at least one direction of rotation and connected to a bearing within a housing Hubkurvenscheibe. This cooperates with at least one tapping element, which is in communication with a hydraulic damping device and is received in an oil-displacing hydraulic piston. The cooperating with the tapping element contour portion of the Hubkurvenscheibe has an angular portion, based on the angle of rotation of the Hubkurvenscheibe causes an increased stroke of the hydraulic piston to increase the oil displacement to create a delay in the closing movement of the door leaf over the angle section.

It is also known to provide a door closer with a closing hydraulic system having a plurality of fluid paths with regulating valves for setting a closing speed of a door leaf in successive closing phases or door closing angle ranges. Adjustment of the regulating valves must be carried out individually for the closing phases in order to prevent slamming of the door leaf. This can be error prone and time consuming.

The invention is therefore based on the object to provide a door closer, the simple and rapid adjustment of the closing speed for several closing phases, d. H. Door angle closing areas, allows.

The object is achieved by a door closer according to the independent claim. Advantageous developments are specified in the dependent claims and the description.

The door closer is in particular a slide rail door closer for a door leaf. The door closer has a closing hydraulic (for example, a damping hydraulic) for setting a closing speed of the door leaf. The closing hydraulic system has a first fluid path with a first fluid flow regulating valve. Through the first fluid flow regulating valve, a fluid flow flows during a closing of the door leaf within a first door angle closing area of the door closer. The closure hydraulic has a second fluid path with the first fluid flow regulating valve and a second fluid flow regulating valve. Through the first fluid flow regulating valve and the second fluid flow regulating valve, a fluid flow flows during a closing of the door leaf within a second door angle closing area of the door closer. By means of the second fluid flow regulating valve, it is possible to set a closing speed change, in particular a closing delay, of the door closer within the second door angle closing range that can be activated in relation to the first door angle closing region.

The common use of a regulating valve by two fluid paths and the use of a switchable second regulating valve for one of the fluid paths allow a change in the closing speed of the door leaf by the second door angle closing area can optionally be provided switchable. This also makes it possible to adjust the second regulating valve from a basic position out. A slamming of the door leaf within the first and second Türwinkelschließbereichs can already be prevented by the setting of the first regulating valve. By not necessarily necessary adjustment of the second regulating valve, the setting of the door closer can be made faster and easier. By means of the second regulating valve, if desired, an additional closing delay can be set within the second door angle closing area.

In particular, the first fluid path may not have the second regulating valve.

In a particularly preferred embodiment, the second door angle closing area lies within the first door angle closing area. Thus, for example, a closing delay may be provided by the second door angle closing portion in a portion of the first door angle closing portion.

In one embodiment, in the second fluid path, the second fluid flow regulating valve is connected in series with the first fluid flow regulating valve. As a result, in particular a switchable closing delay can be set by means of the second fluid flow regulating valve.

In one embodiment, the first door angle closing area and the second door angle closing area have a common beginning. Alternatively or additionally, the second door angle closing area is smaller than the first door angle closing area. With this, too, for example, a closing delay by the second door angle closing area may be provided in a portion of the first door angle closing area.

In a further embodiment, the closing hydraulic system has a first pressure chamber and a second pressure chamber. The first fluid path fluidly interconnects the first pressure chamber and the second pressure chamber within a portion of the first door angle closing area that does not intersect the second door angle closing area. The second fluid path fluidly connects the first pressure chamber and the second pressure chamber within the second door angle closing area. Thus, an adjustment of the first regulating valve for the first Türwinkelschließbereich and the second Türwinkelschließbereich contained therein affects. On the other hand, an adjustment of the second regulating valve has an effect only for the second door angle closing area.

In particular, the first fluid path and the second fluid path can have a fluid connection between the first pressure chamber and the first fluid flow regulating valve, wherein the fluid connection is formed by a first channel, in particular a bore (eg blind hole), in the housing of the door closer. The second fluid path may preferably have a fluid connection between the first fluid flow regulating valve and the second fluid flow regulating valve, wherein the fluid connection is formed by a second channel, in particular a bore (eg blind hole), in the housing of the door closer. Preferably, the first channel and the second channel may be arranged side by side.

In a preferred embodiment, a closing speed of the door closer (and thus of the door leaf) within the first Türwinkelschließbereichs and the second Türwinkelschließbereichs is adjustable by means of the first fluid flow regulating valve

In a preferred embodiment, the first door angle closing range begins in a range between 180 ° closing angle and 120 ° closing angle (for example at 180 °, 125 ° or 110 ° closing angle) and / or ends in a range between 30 ° closing angle and 10 ° closing angle (z B. at 15 °). Alternatively or additionally, the second door angle closing range begins in a range between 180 ° closing angle and 120 ° closing angle (eg at 125 ° or 120 ° closing angle) and / or ends in a range between 90 ° closing angle and 60 ° closing angle (eg at 70 ° closing angle). The switchable in the second Türwinkelschließbereich closing delay can thus, for example, provide enough time to pass the door with luggage, a stroller, hospital beds, etc., without having to hold the door.

In particular, the door leaf is closed at 0 ° closing angle.

It is possible that in a door angle closing range larger than the first door angle closing range, for example, in a range between 180 ° closing angle and 125 ° or 120 ° closing angle, the closing hydraulic for adjusting the closing speed of the door leaf can not act. However, it is also possible for the closing hydraulics to already act at a closing angle of, for example, 180 ° and / or the first door-closing area to begin at a 180 ° closing angle.

In another embodiment, the first fluid path and the second fluid path have a common fluid path portion provided upstream of the first fluid flow regulating valve. Thus, common channels for the first fluid path and the second fluid path can advantageously be used, so that, for example, fewer holes are necessary for providing the first fluid path and the second fluid path.

In one embodiment variant, in the second fluid path, the second fluid flow regulating valve is provided downstream of the first fluid flow regulating valve. This ensures that in the second fluid path through the second regulating valve a switchable throttling of the already throttled by the first regulating valve fluid flow is possible. The switchable throttling corresponds to the switchable closing delay.

In a further embodiment variant, the closing hydraulic system has a third fluid path with a third fluid flow regulating valve. Through the third fluid path (and the third fluid flow regulating valve) flows during a closing of the door leaf within a third Türwinkelschließbereichs the door closer. In addition, the closure hydraulics may further include a fourth fluid path having a fourth fluid flow regulating valve. Through the fourth fluid path (and the fourth fluid flow regulating valve) flows during a closing of the door leaf within a fourth Türwinkelschließbereichs the door closer. Thus, more Türwinkelschließbereiche can be provided for the door closer to provide, for example, a gentle closing of the doors and a quick stop for securely closing the door.

In one embodiment, the third door angle closing area adjoins the first door angle closing area and / or the fourth door angle closing area is within the third door angle closing area. There is thus no gap between the first door angle closing area and the second door angle closing area. In addition, over the fourth door angle closing area, a closing speed in a portion of the third door angle closing area may be changed.

In a further exemplary embodiment, the third door angle closing range begins in a range between 30 ° closing angle and 10 ° closing angle (eg at 15 ° closing angle) and / or ending at 0 ° closing angle. Alternatively or additionally, the fourth door angle closing range begins in a range between 15 ° closing angle and 5 ° closing angle (eg at 7 ° closing angle) and / or ending at 0 ° closing angle. Thus, in the third Türwinkelschließbereich a gentle closing of the door can be adjusted, whereas in the fourth Türwinkelschließbereich a faster closing speed can be provided so that the door securely closes.

In one embodiment, the closure hydraulics further includes a housing having a plurality of through holes. In the through holes, the fluid flow regulating valves (for example, the first fluid flow regulating valve, the second fluid flow regulating valve, the third fluid flow regulating valve, and / or the fourth fluid flow regulating valve) are accommodated. The fluid flow regulating valves are formed so that the fluid flow regulating valves are respectively adjustable from both end faces of the through holes. This increases the possibilities for mounting the door closer.

Thus, the door closer may in particular be designed for door leaf mounting on a door leaf hinge side, frame head mounting on a door hinge side, frame head mounting on a door hinge side and door leaf mounting on a door hinge side.

In a further embodiment, the closing hydraulic further comprises a rotatably mounted closer shaft with a cam disc, a hydraulic piston with a cam follower (eg a roller) following the cam disc, and / or a housing in which the hydraulic piston between a first pressure chamber and a second pressure chamber is performed on.

In particular, the closer shaft may be connected to a linkage of the door closer for connection to a slide rail of the door closer.

In one embodiment, the first fluid path has a first groove in the hydraulic piston, which predetermines a beginning and / or a length of the first door angle closing area. Alternatively or additionally, the second fluid path has a second groove in the hydraulic piston, which predetermines a beginning and / or a length of the second door angle closing region. Alternatively or additionally, the third fluid path has a third groove in the hydraulic piston, which predetermines a beginning and / or a length of the third door angle closing region. Alternatively or additionally, the fourth fluid path has a shoulder on the hydraulic piston, which predetermines a beginning of the fourth door angle closing area. Thus, the door angle closing areas are determined by a displacement of the hydraulic piston caused by the cam when pivoting the door leaf.

In a further exemplary embodiment, the first fluid path has a first radial channel in the hydraulic piston, the second fluid path has a second radial channel in the hydraulic piston, the third fluid path has a third radial channel in the hydraulic piston and / or the fourth fluid path has no radial channel in the hydraulic piston.

Figur 1

eine schematische Ansicht eines Türflügels, der mittels eines Türschließers innerhalb eines Türwinkelschließbereichs von 180° schließbar ist;

Figur 2

eine schematische Darstellung der Schließbereiche des Türschließers;

Figur 3

eine Schnittansicht durch einen Schließkörper des Türschließers bei geschlossenem Türflügel (d. h. einem Türschließwinkel von 0°);

Figur 4

eine Schnittansicht durch den Schließkörper des Türschließers beim Schließen des Türflügels zu Beginn eines ersten und zweiten Türwinkelschließbereichs beispielsweise bei einem Türschließwinkel von ungefähr 125°;

Figur 5

eine Schnittansicht durch den Schließkörper des Türschließers beim Schließen des Türflügels zum Ende des zweiten Türwinkelschließbereichs beispielsweise bei einem Türschließwinkel von ungefähr 70°;

Figur 6

eine Schnittansicht durch den Schließkörper des Türschließers beim Schließen des Türflügels zum Ende des ersten Türwinkelschließbereichs und bei Beginn eines dritten Türwinkelschließbereichs beispielsweise bei einem Türschließwinkel von ungefähr 15°; und

Figur 7

eine Schnittansicht durch den Schließkörper des Türschließers beim Schließen des Türflügels bei Beginn eines vierten Türwinkelschließbereichs beispielsweise bei einem Türschließwinkel von ungefähr 7°.

The preferred embodiments and features of the invention described above can be combined with one another as desired. Further details and advantages of the invention will be described below with reference to the accompanying drawings. Show it:

FIG. 1

a schematic view of a door leaf, which is closable by means of a door closer within a Türwinkelschließbereichs of 180 °;

FIG. 2

a schematic representation of the closing areas of the door closer;

FIG. 3

a sectional view through a closing body of the door closer with the door closed (ie, a door closing angle of 0 °);

FIG. 4

a sectional view through the closing body of the door closer when closing the door leaf at the beginning of a first and second Türwinkelschließbereichs, for example, at a door closing angle of about 125 °;

FIG. 5

a sectional view through the closing body of the door closer when closing the door leaf to the end of the second Türwinkelschließbereichs for example at a door closing angle of about 70 °;

FIG. 6

a sectional view through the closing body of the door closer when closing the door leaf to the end of the first Türwinkelschließbereichs and at the beginning of a third Türwinkelschließbereichs, for example, at a door closing angle of about 15 °; and

FIG. 7

a sectional view through the closing body of the door closer when closing the door leaf at the beginning of a fourth Türwinkelschließbereichs for example at a door closing angle of about 7 °.

The embodiments shown in the figures are at least partially identical, so that similar or identical parts are provided with the same reference numerals and to the explanation of which reference is also made to the description of the other embodiments or figures in order to avoid repetition.

In FIG. 1 a door leaf (door leaf) 10 is shown schematically in a view from above. The door leaf 10 is pivotally connected via one or more door hinges 12 with a door frame. The door leaf 10 can be opened and closed within a range of about 180 °. By means of a door closer 14 and in particular a closing characteristic of the door leaf 10 can be adjusted when closing.

As in FIG. 1 is shown, the door closer 14 may be formed, for example, as a so-called slide rail door closer. The door closer 14 has a closer body 16, a linkage 18 and a slide rail 20. The modular design allows the closer body 16 to be combined with different slide rails 20.

In the illustrated embodiment, the closer body 16 is mounted on the door leaf 10 on a hinge side of the door leaf 10 with respect to the door hinge 12. In other embodiments the closer body 16 may also be mounted on the door frame (head mounting) and / or on a hinge opposite side.

By means of the closer body 16, different closing speeds and delays can be set as a function of a door closing angle during the closing of the door leaf 10. In other words, during closing, the door 10 can close quickly in certain angular ranges and close slowly in certain angular ranges.

In FIG. 1 schematically four angular closure regions are shown, for the use of the shutter body 16 different closing speeds and delays are adjustable. In particular, a closing hydraulics of the closing body 16 can be used to set a closing speed within a first door angle closing range A. Optionally, in addition, in a second door angle closing area B located within the first door angle closing area A, a closing delay can be set. Subsequent to the first door angle closing area A, a third door angle closing area C and within the third door angle closing area C a fourth door angle closing area D can be set.

The closing hydraulics of the door closer 14 may be designed such that it acts, for example, already from 180 ° or only from 125 ° or 120 °. The first door angle closing area A may extend, for example, between 125 ° and 15 °. In the first door angle closing area A, a basic closing speed of the door leaf 10 can be set. The second Türwinkelschließbereich B may for example extend between 125 ° and 70 °. It is also possible that the first and / or the second door angle closing area, for example, begins earlier and / or ends later. In the second door angle closing area B, an additional delay can be set, if desired. For example, enough time can be provided to pass the door with luggage, a stroller, hospital beds, and so on. The third Türwinkelschließbereich C may, for example, between 15 ° and 0 ° extend. The third Türwinkelschließbereich C can for example be set so that a nearly silent closing of the door leaf 10 is made possible. The fourth Türwinkelschließbereich D may, for example, between 7 ° and 0 ° extend. Here, the speed can be adjusted during the final impact, so that it is ensured that the door 10 actually closes, for example under elastic deformation of a door seal.

The four door angle closing areas A to D are again schematically in the diagram of FIG. 2 shown. Here, it should be emphasized that the door closer 14 of the present disclosure in particular allows to set the second door angle closing area B only optionally. Without adjusting the second door angle closing range B, the door leaf 10 can close at a uniform speed within the first door angle closing range A. The Türwinkelschließbereich B can be added in addition as a closing delay, if desired. Due to the only optional closing delay in the door angle closing area B, the basic setting of the door closer 14 can be made easier and above all faster.

It should also be emphasized that the Türwinkelschließbereiche A and B influence each other. That is, the setting regarding the closing speed within the door angle closing area A represents the exit speed for the delay within the door angle closing area B. Specifically, for providing the four door angle closing areas A to D, a plurality of regulating valves are provided as described below with reference to FIGS FIGS. 3 to 7 is described in detail.

The FIG. 3 shows a longitudinal section through the closer body 16 in the closed state of the door leaf 10. The closing body 16 has a closing hydraulic (damping hydraulics) 22 for influencing a closing characteristic of the door leaf 10 and an unspecified opening hydraulic 24 for influencing an opening characteristic of the door leaf 10.

The closing hydraulics 22 has a closer shaft 26, a hydraulic piston 28, a housing 30, a first pressure chamber (damping chamber) 32 and a second pressure chamber 34. In addition, the closing hydraulics 22 has four regulating valves 36, 38, 40 and 42 for regulating fluid flows.

The closer shaft 26 is above the linkage 18 with the slide rail 20 (see FIG. 1 ) connected. The closer shaft 26 is rotatably supported in the housing 30. The closer shaft 26 has a cam plate 44. The cam plate 44 may be formed heart-shaped, for example.

The hydraulic piston 28 is reciprocally arranged in the housing 30. The hydraulic piston 28 defines the first pressure chamber 32 and the second pressure chamber 34. A displacement of the hydraulic piston 28 changes a volume of the first pressure chamber 32 and the second pressure chamber 34. The hydraulic piston 28 has a cam follower 46, for example a rotatable roller, for following a cam contour of the cam plate 44. The hydraulic piston 28 is supported via a damping spring 48 on a cover 50 which is fixed to the housing 30.

The hydraulic piston 28 has a safety valve (check valve) 52. When the door is opened, the hydraulic piston 28 is moved in a direction toward the closer shaft 26 (to the right in FIG FIG. 3 ), the safety valve 52 opens and fluid flows from the second pressure chamber 34 into the first pressure chamber 32. Upon closing the door, the hydraulic piston 28 is moved in a direction away from the closer shaft 26 (to the left in FIG FIG. 3 ) is displaced by the cam plate 44. The safety valve 52 is closed. Depending on the instantaneous door closing angle, the fluid flows out of the first pressure chamber 32 into the second pressure chamber 34 via at least one of a plurality of fluid paths. A desired closing characteristic of the door can be adjusted by selectively influencing the fluid flow in the fluid paths.

The regulating valves 36, 38, 40, 42 are received in through holes 37, 39, 41, 43 in the housing 30. For example, the first regulator valve 36 is disposed in the first through hole 37. The through holes 37, 39, 41, 43 connect opposite longitudinal outer sides of the housing 30 of the shutter body 16. The regulating valves 36, 38, 40, 42 can be adjusted from both sides of the through holes 37, 39, 41, 43 ago. This increases the possibilities for mounting the closing body 16 and thus the flexibility of the door closer 14th

The FIG. 4 FIG. 12 shows a dotted fluid path F (also referred to herein as the second fluid path) including the first pressure chamber 32 with the second pressure chamber 34 within the second door angle closing area B (see FIG Figures 1 and 2 ) connects. A start, a width and an end of the second Türwinkelschließbereichs B are determined by a positioning and length of a groove 58 in the hydraulic piston 28. Via the groove 58, a fluid flow from the first and second regulating valve 36, 38 is directed into a radial passage 60 of the hydraulic piston 28 to the second pressure chamber 34. In particular, the second fluid path F has the first regulating valve 36 and the second regulating valve 38. In the second fluid path F, the first regulating valve 36 and the second regulating valve 38 are connected in series. The second regulator valve 38 is provided downstream of the first regulator valve 36.

The FIG. 5 shows a first dotted fluid path E. The first fluid path E connects the first pressure chamber 32 to the second pressure chamber 34 in a portion of the first door angle closing area A that does not interfere with the second door angle closing area B (see FIG Figures 1 and 2 ) overlaps. A beginning, a width and an end of the first Türwinkelschließbereichs A are determined by a positioning and length of a groove 54 in the hydraulic piston 28. Via the groove 54, a fluid flow from the first regulating valve 36 is directed into a radial passage 56 of the hydraulic piston 28 to the second pressure chamber 34. In particular, the first fluid path E has the first regulating valve 36. In contrast to the second fluid path F, the first fluid path E does not have the second regulating valve 38.

Thus, by adjusting the first regulator valve 36, a closing speed of the door panel 10 within the first door angle closing area A can be adjusted. If the second regulating valve 38 is not adjusted, the closing speed set by the first regulating valve 36 is maintained within the second door angle closing area B, with the second fluid path F flowing through. The second regulating valve 38 does not throttle the fluid flow in a normal position. However, it can also be adjusted from a basic position, the second regulating valve 38. Then, within the second door angle closing area B, an additional closing delay can be set by adjusting the second regulating valve 38.

The FIG. 6 shows a third dotted fluid path G. The third fluid path G connects the first pressure chamber 32 to the second pressure chamber 34 within the third door angle closing range C (see FIG Figures 1 and 2 ). Via the groove 62, a fluid flow from the third regulating valve 40 is directed into a radial passage 64 of the hydraulic piston 28 to the second pressure chamber 34.

The FIG. 7 shows the third dotted fluid path G and a fourth dotted fluid path H. In addition to the third fluid path G, the fourth fluid path H connects the first pressure chamber 32 to the second pressure chamber 34 within the fourth door angle closing range D (see FIG Figures 1 and 2 ). A start, a width and an end of the third Türwinkelschließbereichs C are determined by a positioning and length of a shoulder 66 on the hydraulic piston 28. In the fourth fluid path H, the third regulating valve 40 flows around (not flowed through). Via the shoulder 66, a fluid flow from the fourth regulating valve 42 to the second pressure chamber 34 is passed.

The invention is not limited to the preferred embodiments described above. Rather, a variety of variants and modifications is possible, which also make use of the inventive idea and therefore fall within the scope. In particular, the invention also claims protection of the subject matter and the features of the subclaims independently of the claims referred to. In particular, the features of the subclaims are also independent of all the features of independent claim 1 and, for example, independent of the features relating to the presence and the configuration of the closing hydraulics, the first fluid path, the second fluid path, the first regulating valve and / or the second regulating valve of the independent claim 1 discloses.

LIST OF REFERENCE NUMBERS

10

door

12

hinge

14

door closers

16

closer body

18

linkage

20

slide

22

closing hydraulic

24

opening hydraulic

26

closer shaft

28

hydraulic pistons

30

casing

32

First pressure chamber

34

Second pressure chamber

36

First regulating valve

37

First through hole

38

Second regulating valve

39

Second through hole

40

Third regulating valve

41

Third through hole

42

Fourth regulating valve

43

Fourth through hole

44

cam

46

cam follower

48

damping spring

50

cover

52

safety valve

54

First groove

56

First radial canal

58

Second groove

60

Second radial channel

62

Third groove

64

Third radial canal

66

paragraph

A

First door angle closing area

B

Second door angle closing area

C

Third door angle closing area

D

Fourth door angle closing area

e

First fluid path

F

Second fluid path

G

Third fluid path

H

Fourth fluid path

Claims (15)

Door closer (14), in particular slide rail door closer, for a door leaf (10), wherein the door closer (14) has a closing hydraulics (22) for setting a closing speed of the door leaf (10), wherein the closing hydraulics (22) comprises: a first fluid path (E) having a first fluid flow regulating valve (36) through which fluid flow flows during closing of the door leaf (10) within a first door angle closing area (A) of the door closer (14); and a second fluid path (F) including the first fluid flow regulating valve (36) and a second fluid flow regulating valve (38) through which fluid flow flows during closing of the door leaf (10) within a second door angular closure area (B) of the door closer (14) wherein, by means of the second fluid flow regulating valve (38), a closing speed change, in particular closing delay, of the door closer (14) which can be engaged with respect to the first door angle closing area (A) is adjustable within the second door angle closing area (B). The door closer (14) of claim 1, wherein: the second door angle closing area (B) is within the first door angle closing area (A); and or in the second fluid path (F), the second fluid flow regulating valve (38) is connected in series with the first fluid flow regulating valve (36). A door closer (14) according to claim 1 or claim 2, wherein: the first door angle closing area (A) and the second door angle closing area (B) have a common beginning; and or the second door angle closing area (B) is smaller than the first door angle closing area (A). Door closer (14) according to one of the preceding claims, wherein: the closing hydraulic system (22) has a first pressure chamber (32) and a second pressure chamber (34); the first fluid path (E) fluidly connects the first pressure chamber (32) and the second pressure chamber (34) within a portion of the first door angle closing portion (A) that does not intersect the second door angle closing portion (B); and the second fluid path (F) fluidly connects the first pressure chamber (32) and the second pressure chamber (34) within the second door angle closing area (B). Door closer (14) according to one of the preceding claims, wherein: a closing speed of the door closer (14) within the first Türwinkelschließbereichs (A) and the second Türwinkelschließbereichs (B) is adjustable by means of the first fluid flow regulating valve (36). Door closer (14) according to one of the preceding claims, wherein: the first door angle closing area (A) starts in a range between 180 ° closing angle and 120 ° closing angle and / or ends in a range between 30 ° closing angle and 10 ° closing angle; and or the second door angle closing area (B) starts in a range between 180 ° closing angle and 120 ° closing angle and / or ends in a range between 90 ° closing angle and 60 ° closing angle. Door closer (14) according to one of the preceding claims, wherein: the first fluid path (E) and the second fluid path (F) have a common fluid path portion provided upstream of the first fluid flow regulating valve (36). Door closer (14) according to one of the preceding claims, wherein: in the second fluid path (F), the second fluid flow regulating valve (38) is provided downstream of the first fluid flow regulating valve (36). Door closer (14) according to one of the preceding claims, wherein the closing hydraulic system (22) comprises: a third fluid path (G) having a third fluid flow regulating valve (40) through which fluid flow flows during closing of the door leaf (10) within a third door angle closing area (C) of the door closer (14); and or a fourth fluid path (H) having a fourth fluid flow regulating valve (42) through which fluid flow flows during closing of the door leaf (10) within a fourth door angle closing area (D) of the door closer (14). A door closer (14) according to claim 9, wherein: the third door angle closing area (C) connects to the first door angle closing area (A), and the fourth door angle closing area (D) is located within the third door angle closing area (C). A door closer (14) according to claim 9 or claim 10, wherein: the third door angle closing area (C) starts in a range between 30 ° closing angle and 10 ° closing angle and / or ends at 0 ° closing angle; and or the fourth door angle closing range (D) starts in a range between 15 ° closing angle and 5 ° closing angle and / or ends at 0 ° closing angle. The door closer (14) of any one of the preceding claims, wherein the closure hydraulics (22) further comprises: a housing having a plurality of through holes (37, 39, 41, 43) in which the fluid flow regulating valves (36, 38, 40, 42) are received, wherein the fluid flow regulating valves (36, 38, 40, 42 ) are formed so that the fluid flow regulating valves (36, 38, 40, 42) are respectively adjustable from both end faces of the through holes (37, 39, 41, 43). The door closer (14) of any one of the preceding claims, wherein the closure hydraulics (22) further comprises: a rotatably mounted closer shaft (26) with a cam disc (44); a hydraulic piston (28) having a cam follower (46) following the cam disc (44); and a housing (30) in which the hydraulic piston (28) between a first pressure chamber (32) and a second pressure chamber (34) is guided. The door closer (14) of claim 13, wherein: the first fluid path (E) has a first groove (54) in the hydraulic piston (28) defining a beginning and a length of the first door angle closing portion (A); and or the second fluid path (F) has a second groove (58) in the hydraulic piston (28) that defines a beginning and a length of the second door angle closing portion (B); and or the third fluid path (G) has a third groove (62) in the hydraulic piston (28) defining a beginning and a length of the third door-angle closing portion (C); and or the fourth fluid path (H) has a shoulder (66) on the hydraulic piston (28), which predetermines a beginning of the fourth door angle closing region (D). A door closer (14) according to claim 13 or claim 14, wherein: the first fluid path (E) has a first radial passage (56) in the hydraulic piston (28);
and or the second fluid path (F) has a second radial passage (60) in the hydraulic piston (28);
and or the third fluid path (G) has a third radial passage (64) in the hydraulic piston (28);
and or the fourth fluid path (H) has no radial passage in the hydraulic piston (28).

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