EP3070243B1 - Door fitting for height adjustment of sliding doors - Google Patents

Description

The invention relates to a door fitting for height adjustment of a sliding door between a retracted rest position and an extended end position with a housing in which at least one roller is mounted and with a relative to the housing by means of at least two splines as parts spaced grooves and at least four seated in the grooves Guide elements adjustable lift plunger, each Keilbahn having two end stops, of which the first stop limits the rest position and the second stop limits the end position and a sliding door with at least one such door fitting.

Elements of such a door fitting are from the DE 693 06 287 T2 known. When adjusting the height, the lifting tappet may tip over or leave the wedge track.

The CN 102 619 425 A proposes to provide four obliquely arranged longitudinal grooves in the lift plunger, protrude into the guide pin arranged in the housing. The insertion of the guide pin requires a separate operation. The WO-A-2006/097965 discloses a height-adjustable sliding door fitting with a one-sided open keyway and with an elastic return element.

The present invention is therefore based on the object to develop a trouble-free to install and reliable height-adjustable door fitting.

This problem is solved with the features of the main claim. For this purpose, each keyway has a subsequent to a body interface and the end stop of the end position insertion of the one-sided open groove. A restoring element arranged on the housing and on the lifting ram loads the lifting ram relative to the housing in the direction of the rest position.

Figur 1:

Schiebetür mit Türbeschlag;

Figur 2:

Stirnansicht der Schiebetür;

Figur 3:

Figur 2 bei abgenommenem vertikalen Profilelement;

Figur 4:

Unteransicht des Türbeschlags mit Mitnahmeeelement;

Figur 5:

Draufsicht des Türbeschlags;

Figur 6:

Isometrische Ansicht des Türbeschlags;

Figur 7:

Längsschnitt des Türbeschlags;

Figur 8:

Hubstößel;

Figur 9:

Beschleunigungs- und Verzögerungsvorrichtung;

Figur 10:

Türbeschlag in der Ruhelage;

Figur 11:

Türbeschlag in der Endlage.

Further details of the invention will become apparent from the dependent claims and the following description of schematically illustrated embodiments.

FIG. 1:

Sliding door with door fitting;

FIG. 2:

Front view of the sliding door;

FIG. 3:

FIG. 2 with removed vertical profile element;

FIG. 4:

Bottom view of the door fitting with entrainment element;

FIG. 5:

Top view of the door fitting;

FIG. 6:

Isometric view of the door fitting;

FIG. 7:

Longitudinal section of the door fitting;

FIG. 8:

push member;

FIG. 9:

Acceleration and deceleration device;

FIG. 10:

Door fitting in the rest position;

FIG. 11:

Door fitting in the end position.

The FIGS. 1 and 2 show a sliding door (1). Such sliding doors (1) are used, for example, for closing cabinets, for separating rooms, etc. The sliding doors (1) are in an open position from an open position in which they allow access to the cabinet or in the room, in which the access is blocked and moved back. The drive of the sliding door (1), for example, relative to the door frame can be done by hand or by motor.

The sliding door (1) comprises in the exemplary embodiment, a support frame (3), a door plate (14) and at least one door fitting (20).

The support frame (3) of the sliding door (1) consists for example of four profile elements (4, 11) which delimit the door plate (14) in the form of a rectangle. The single profile element (4, 11), of which in the FIGS. 1 and 2 only a lower horizontal (4) and a frontal vertical profile element (11) are shown, for example, is made of aluminum extruded section. All profile elements (4, 11) in the direction of the door plate (14) oriented U-shaped profile opening (5, 12).

The horizontal profile element (4) is formed on the side facing away from this profile opening (5) at least approximately U-shaped, see. FIG. 3 , In the example cuboid on receiving opening (9) is arranged on the profile web (6) adjacent cylinder rod (7) with a longitudinal direction (15) oriented internal thread (8).

The vertical profile element (11) is formed on the side facing away from the profile opening (12) as a hollow profile with approximately rectangular cross-section. In this profile element (11) an overhead fastening screw (18) and an underlying adjusting screw (21) are arranged. By means of the fastening screw (18), the vertical profile element (11) with the horizontal profile element (4) is connected. Here, the fastening screw (18) is screwed into the internal thread (8) of the cylinder rod (7).

The door plate (14) is for example a rectangular plate whose width is smaller than the width of the support frame (3). It can be made of metal, wood, plastic, glass or an endermaterial. It is also conceivable to use the door plate (14), e.g. Laminate build or run it, for example, with a glass insert in a wooden frame. The door shield (14) may be solid or lightweight, e.g. be formed with two connected by a honeycomb core cover plates.

The door fitting (20) is inserted into the receiving opening (9) of the horizontal profile element (4). In the exemplary embodiment, it protrudes into the profile opening (12) of the vertical profile element (11). The door fitting (20) comprises a housing (31), a lifting ram (61) and an acceleration and deceleration device (81). The FIGS. 4 to 9 show the door fitting (20) and its individual parts. The door fitting (20) shown in these figures is a left-hand door fitting. It is identical to a right-hand door fitting (20), with the exception of the mirror-inverted acceleration and deceleration device (81).

The housing (31) has two side cheeks (32) arranged parallel to one another, which in the exemplary embodiment are connected to one another by means of spacer pins (34, 35). In the lower area a roller (41) is mounted in the housing (31). This roller (41) has, for example, a flange (42) and an integrated roller bearing whose inner ring (43) on the one axis (35) forming the lower spacer pin (35) sits. On the underside of the housing (31) two stripper brushes (48, 131) are arranged, of which in the illustration of FIGS. 1 . 3 and 4 one in front and the other behind the roller (41) is arranged.

The single side wall (32, 33) of the housing (31) has an at least approximately rectangular contour. The right side cheek (32) has in the exemplary embodiment a brush receiving lug (45) and a spring receiving lug (38).

The strip-shaped brush receiving lug (45) is arranged in the lower region of the side cheek (33). It carries a brush holder (46) with a T-slot (47), in which the frontally oriented stripper brush (48) is inserted.

The spring receiving lug (38) is formed U-shaped. The opening points into the interior (36) of the housing (31). In this spring receiving lug (38) is a return spring (23) mounted as a restoring element (23), whose other end is mounted on the lifting tappet (61).

Adjacent to its upper side (37) each side cheek (32, 33) of the housing (31) has two spaced, unilaterally open grooves (51). The two grooves (51) of a side wall (32; 33) are identical to one another and formed parallel to one another. Both grooves (51) have an overhead insertion area (52) and a guide area (53). This guide region (53) has in each case an underlying key track (54) and an overhead securing track (55). These two tracks (54, 55) are connected at their lower end by means of a stop (56). Another stop (57) is arranged at the upper end of the wedge track (54). This stop (57) is connected to the insertion region (52).

In the grooves (51) of the lift rod (61) is guided. The lifting ram (61), which is constructed largely in the form of a horizontal H in cross-section, comprises a spring receiver (67), four guide elements (65) and longitudinal webs (62) arranged in the longitudinal direction (15). At the front end of the example has Plastic-made lifting ram (61) has a transverse receiving groove (68) in which in the exemplary embodiment a threaded insert (69) is arranged. In this threaded insert (69), the adjusting screw (21) is screwed. The adjusting screw (21) and the threaded insert (69) form the adjusting device (21, 69) of the door fitting (20).

The guide elements (65) are arranged on the opposite outer sides (64) of the Hubstößels (61). They each have an oval cross-sectional area. In each case a guide element (65) is seated in a groove (51) of the housing (31). The longitudinal direction of the cross-sectional area of the guide elements (65) is oriented in the longitudinal direction of the respective groove (51).

The longitudinal webs (62) are arranged on the upper side (66) of the lifting tappet (61). They are aligned with the outer sides (64) of the Hubstößels (61) and have a constant distance to each other. In the rear and in the front area, the longitudinal webs (62) have elevations (63). In these areas, the longitudinal webs (62) are formed as bearing webs (63). The tops of the contact webs (63) lie in a common plane.

The acceleration and deceleration device (81) is mounted in the housing (31), for example, it is locked there. It comprises a supporting part (82) in which a cylinder-piston unit (111), an energy store (121) and a driving element (91) are arranged.

The support member (82) has in the exemplary embodiment a guide surface (83). This comprises a parallel to the longitudinal direction (15) of the door fitting (20) oriented straight guide portion (84) and arranged for example normal thereto Holding section (85). The two sections (84, 85) are connected to one another by means of an arc section (86). The holding (85) and the arc portion (86) are part of a guide groove (87) having an expansion (88) in the end region.

Along the guide surface (83) the entrainment element (91) is movable. This driving element (91) engages over the supporting part (82). It has for example two sliding elements (92), a guiding and receiving element (93) and a driving area (101).

The rod-shaped sliding elements (92) are spaced from each other and abut the guide surface (83). The sliding elements (92) connect the driving area (101) and the guiding and receiving element (93).

The entrainment area (101) comprises two stop pins (102, 103) facing towards each other, e.g. arranged parallel to each other stop surfaces (104) are arranged. These are aligned, for example, normal to the tangential plane of the sliding elements (92). The two stop surfaces (104) define together with a bottom surface (105) a Mitnehmerausnehmung (106). The entrainment region (101) has a first guide surface (94) facing the support part (82). The holding section (85) facing Anschlagzafen (102) is formed elastically deformable in the embodiment.

The guiding and receiving element (93) comprises a second guide surface (95) arranged parallel to the first-mentioned guide surface (94) and a spring receptacle (96). The spring receiver (96) points in the direction away from the holding section (85).

In the spring receptacle (96) one end of a tension spring (121) is mounted. The other end of the tension spring (121) is mounted in the support part (82). In the exemplary embodiment, the tension spring (121) forms the energy store of the acceleration and deceleration device (81).

The cylinder-piston unit (111) comprises a cylinder (112) and a piston (117) guided therein by means of a piston rod (115). The piston rod (115) has on its end facing away from the piston (117) a piston rod head (116), which is pivotally mounted in the driving element (91).

The cylinder (112) has a closed bottom (113). Its inner wall may be cylindrical or conical. The cylinder inner wall has, for example, two longitudinally oriented grooves of different lengths, both of which adjoin the cylinder bottom (113). For example, the length of the short longitudinal groove is a quarter of the length of the cylinder. The length of the long longitudinal groove is e.g. three quarters of the length of the cylinder (112). At the piston rod end, the cylinder (112) is closed by means of a cylinder head cover (114) with a piston rod seal.

In the exemplary embodiment, the piston (117) has a piston seal (118) with a sealing lip oriented in the direction of the cylinder bottom (113). The piston (117) may be formed integrally with the piston rod (115) and / or with the piston seal (118).

At the acceleration and deceleration device (81), a brush holder (132) with the brush (131) is further arranged.

On a door rail (140) a driver (150) is arranged. This is in the exemplary embodiment, a symmetrical to its transverse axis component with four driving lugs (151, 152). Each of the two adjacent, by a notch (153) separated catch lugs (151, 152) together have a length which is slightly shorter than the distance of the stop surfaces (104) of the driving element (91).

During assembly, for example, first the acceleration and deceleration device (81) is pre-assembled. Here, the piston rod (115) is inserted with the piston (117) in the cylinder (112) and this closed by means of the cylinder head cover (114). Subsequently, the cylinder-piston unit (111) with the driving element (91) in the support member (82) is inserted and secured. At the driving element (91) and the support member (82) the tension spring (121) is suspended. Furthermore, the brush holder (132) is inserted with the wiper brush (131) in the support member (82).

The acceleration and deceleration device (81) is inserted together with the roller (41) and the front brush (48) in one half of the housing (31). Now, the spacer pins (31, 35) and the second half of the housing (31) can be placed and secured.

In a next step, the first tension spring (23) on the housing (31) and on the Hubstößel (61) are hung. The lifting plunger (61) is then inserted into the housing (31) with the threaded insert (69) inserted therein, wherein the guide elements (65) engage in the grooves (51). The tension spring (23) pulls the lift rod (61) into the retracted rest position (24). The pre-assembled fitting (20) has compact dimensions. It is also conceivable to carry out the assembly of the fitting (20) in a different order.

The fitting (20) can now be inserted into the supporting frame (3) of the sliding door (1). In this case, for example, it lies precisely in the receiving opening (9) of the horizontal profile element (4). A stop (89) on the support part (82) of the acceleration and deceleration device (81) prevents too far insertion of the fitting (20). From the front side of the vertical profile element (11), the adjusting screw (21) is inserted and screwed into the threaded insert (69).

After inserting the sliding door (1) in the door frame, the roller (41) is in the door rail (140). The two wiper brushes (48, 131) touch the door rail (140) in front of and behind the roller (41). The sliding door (1) is in its lowest position, cf. FIG. 10 , The Hubstößel (61) is in the rest position (24). The piston (117) of the acceleration and deceleration device (81) is retracted. The entrainment element (91) is in its end position in the straight guide section (84). The energy store (121) is discharged.

On the door rail (140), for example, on the inside of the cabinet, the driver (150) can be arranged. This can be done either by means of a template or with the sliding door closed (1) by adapting to the driving element (91) in the retracted position.

Now the height of the sliding door (1) can be adjusted. To raise the adjusting screw (21) is screwed into the thread (69). The Hubstößel (61) is tightened in the direction of the vertical profile element (11). He wanders along the Keilbahnen (54) upwards. The door plate (14) with the support frame (3) is raised relative to the door rail (140) and the roller (41). The maximum lifting height is limited by the upper stop (57) of the groove (51), cf. FIG. 11 ,

To lower the sliding door (1), the adjusting screw (21) can be rotated in the release direction. The gravity of the sliding door (1) causes together with the tension spring (23) lifting of the housing (31) relative to the lift rod (61). The sliding door leaf (2) lowers until the stop (56) of the grooves (51) prevents further lowering, cf. FIG. 10 ,

Before the sliding door (1) is closed for the first time, the acceleration and deceleration device (81) stands, for example, in the end position described above, in which the energy store (121) is discharged. When first closing the sliding door (1), the driver (150) contacts the front stop pin (102) of the driving element (91) and deforms it. The catch lugs (151, 152) of the driver (150) jump into the Mitnehmerausnehmung (106). The stop pin (102) deforms elastically back. The sliding door (1) is now ready for use.

When manual or motorized opening of the sliding door (1) from the closed position of the driver (150) pulls the driving element (91) from the end position along the guide surface (83) in the direction of a parking position. The energy store (121) is loaded. As soon as the front sliding element (92) in the opening direction (17) reaches the guide groove (87), the driving element (91) tilts under the action of the spring (121). It is now in a locked and positively locked parking position. Upon further opening of the sliding door (1), the entrainment element (91) releases from the driver (150). The entrainment element (91) remains in the parking position. The sliding door (1) can now be opened further.

When closing the sliding door (1) contacted before reaching the closed end position, the driving element (91) the driver (150). The driver (150) releases the carrier element (91) from the parking position. The energy store (121) is relieved and pulls the entrainment element (91) in the direction of the end position. The sliding door (1) is thus pulled into the closed position. At the same time, the driving element (91) moved relative to the cylinder (112) displaces the piston (117) into the cylinder (112). The sealing lip of the piston seal (118) abruptly abuts against the cylinder inner wall and seals in the cylinder interior a displacement chamber against a compensation chamber quasi hermetically. The sliding door (1) is braked. As soon as the further closing of the sliding door (1), the piston passes over the first longitudinal groove of the cylinder inner wall, e.g. Gas is displaced from the displacement chamber into the expansion chamber along this throttle groove. The movement of the sliding door (1) is determined by the acceleration applied by the energy accumulator (121) and by the delay caused simultaneously by the cylinder-piston unit (111). As soon as the piston (117) passes over the short longitudinal groove, the deceleration rate is further reduced. The sliding door (1) moves slowly into its closed end position. There she stays without jerking.

The sliding door (1) can have a further fitting (20), which is arranged on the side of the sliding door (1) facing in the opening direction (17). By adjusting the height of both fittings (20), the door leaf (2) can be aligned accurately. In such an arrangement, the acceleration and deceleration device (81) of the second Fittings (20) for the controlled start of the open end position of the sliding door (1) are used.

The fitting (20) can be used with both light and heavy sliding doors (1). Due to its compact design, it is easy to install as a whole. The two longitudinal webs (62) surround the threaded sleeve (7) of the profile element (4) and are centered there, so that a secure system of the fitting (20) is ensured on the door profile. The fitting (20) is thus compatible with existing guides.

Combinations of the individual embodiments are conceivable.

LIST OF REFERENCE NUMBERS

1

sliding door

2

door leaf

3

supporting frame

4

Profile element, horizontal

5

Profile opening of (4)

6

profile web

7

Cylinder rod, threaded sleeve

8th

inner thread

9

receiving opening

11

Profile element, vertical

12

Profile opening of (11)

13

Adjusting bearing surface

14

nameplate

15

longitudinal direction

16

closing direction

17

opening direction

18

fixing screw

20

door fittings

21

Adjusting screw, adjusting device

23

Reset element, first tension spring

24

End position, retracted, rest position

31

casing

32

Sidewall, right

33

Sidewall, left

34

spacer pins

35

Spacer pin, axle

36

Interior of (31)

37

Top of (32, 33), body interface

38

Spring receiving tab

41

caster

42

flange

43

inner ring

45

Brush record tab

46

brush carrier

47

T-slot

48

wiper brush

51

groove

52

insertion region

53

guide region

54

keyway

55

securement web

56

attack

57

Stop, upper stroke position

61

lift tappet

62

longitudinal webs

63

Elevations, contact strips

64

outsides

65

guide elements

66

top

67

spring mount

68

receiving groove

69

Threaded insert, adjustment device

81

Acceleration and deceleration device

82

supporting part

83

guide surface

84

guide section

85

holding section

86

arc section

87

guide

88

widening

89

attack

91

driving element

92

Sliding elements

93

Guiding and receiving element

94

first guide surface

95

second guide surface

96

spring mount

101

driving region

102

Stop pin, elastically deformable

103

stop pin

104

stop surfaces

105

floor area

106

driver recess

111

Cylinder-piston unit

112

cylinder

113

Bottom of (112)

114

Cylinder head cover

115

piston rod

116

Piston rod head

117

piston

118

piston seal

121

Energy storage, tension spring

131

wiper brush

132

brush carrier

140

door rail

150

takeaway

151

impact dogs

152

impact dogs

153

score

Claims (9)

1. Door accessory mechanism (20) for adjusting the height of a sliding door (1) between a retracted rest position (24) and an extended end position, comprising a housing (31) having two sidewalls (32, 33) disposed in a mutually parallel relationship and mounting at least one roller (41) adjustable relative to the housing (31) by means of a pair of wedge tracks (54) provided in the side walls (32, 33) as parts of spaced part grooves (51) and at least four guide elements (65) disposed in the grooves (51), with each groove (51) having a guide element (65) therein, and with each wedge track (54) comprising two end stops (56, 57), the first one (56) of which delimits said rest position and the second (57) of which delimits the end position,
   characterized by

   - each wedge track (54) comprising a insertion area (52) of the groove (51), which insertion area adjoins a body limit surface (37) and the end position end stop (57), said groove (51) configured to be open on one side thereof, and

   - a return element (23) connected to the housing (31) and to the lift plunger (61) provided to load the lift plunger (61) relative to the housing (31) in a direction towards the rest position (24),

   - with the return element (23) being a draw spring connected to the housing and to the lift plunger.
2. Door accessory mechanism (20) as claimed in claim 1, characterized by comprising adjusting means (21, 69) with an adjusting element (21), with a tension load acting on the adjusting element (21) to lift the lift plunger (61) relative to the housing (31).
3. Door accessory mechanism (20) as claimed in claim 1, characterized by comprising an accelerating and retarding unit (81).
4. Door accessory mechanism (20) as claimed in claim 1, characterized in that the lift plunger (61) comprises two longitudinal web elements (62).
5. Door accessory mechanism (20) as claimed in claim 1, characterized in that the guide elements (65) have an oval cross section area.
6. Door accessory mechanism (20) as claimed in claim 1, characterized in that the wedge tracks (54) are provided in the housing (31) and the guide elements (65) are provided in the lift plunger (61).
7. Sliding door (1) comprising at least one door accessory mechanism (20) as claimed in claim 1.
8. Sliding door (1) as claimed in claim 7, characterized in that the lift plunger (61) has longitudinal web elements (62) encompassing a threaded sleeve (7) of a supporting frame (3) of the sliding door (1).
9. Sliding door (1) as claimed in claim 7, characterized by a supporting frame (3) having thereon an engagement surface (13) for an adjusting element.

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