EP3070244B1 - Upper door fitting of a sliding door - Google Patents

Description

The invention relates to an upper door fitting a sliding door, which has a housing with a bottom plate lying on a housing cover, and two rotatably mounted on each axle journal mounted transverse guide rollers, wherein both axle arranged parallel to each other and symmetrical to a vertical central longitudinal plane of the door fitting are, both axle stubs are rigidly mounted in the housing and wherein the two transverse guide rollers define an insertion opening of the housing.

From the CN 203 145 671 U Such door fittings are known. Should there be any play between the door fitting and a door guide rail, this can lead to striking noises or jerky movements of the sliding door.

From the US 1,925,473 A An upper door guide is known in which four rollers hang in a pivotable housing and are prevented at its lower end by means of a square on the twisting.

The present invention is therefore an object of the invention to develop a door fitting that prevents impact noise and jerky movements of the sliding door.

Figur 1:

Isometrische Ansicht einer oberen Führung einer Schiebetür;

Figur 2:

Stirnansicht der oberen Führung einer Schiebetür;

Figur 3:

Türbeschlag;

Figur 4:

Querschnitt des Türbeschlags aus Figur 3;

Figur 5:

Achszapfen vor dem Einbau.

This problem is solved with the features of the main claim. For this purpose, the axle journal cantilevered and one-sided trivalent fixed in the housing. In addition, the housing overhangs the free ends of the journal, the housing cover overhanging a portion of the transverse guide rollers, wherein it is spaced therefrom and has no contact with the journal. Further details of the invention will become apparent from the dependent claims and the following description of schematically illustrated embodiments.

FIG. 1:

Isometric view of an upper guide of a sliding door;

FIG. 2:

Front view of the upper guide of a sliding door;

FIG. 3:

Door hardware;

FIG. 4:

Cross-section of the door fitting off FIG. 3 ;

FIG. 5:

Spigot before installation.

In the FIGS. 1 and 2 the upper guide of a sliding door (10) is shown. The sliding door (10) is seated in a U-shaped door guide rail (1). Along this door guide rail (1), the sliding door (10) is displaceable or movable between an open and a closed position. The sliding door can be driven manually or by motor.

The sliding door (10) comprises a multi-part support frame (12), which carries a sliding door leaf (11) inserted into it. On the support frame (12), a door fitting (30) is arranged, which is fastened at its two ends lying in the longitudinal direction (5) on the support frame (12). By means of the door fitting (30), the sliding door (10) in the door guide rail (1) is guided. Optionally, to guide the sliding door (10) has a second, z. B. identically constructed door fitting (30) at the other in the longitudinal direction (5) oriented end of the sliding door (10) may be arranged. At the lower end of the sliding door (10), for example, rollers are arranged.

The support frame (12) in the exemplary embodiment comprises a horizontal profile element (13) and a vertical profile element (23) connected thereto. The vertical profile element (23) limits the front side of the sliding door (10). In the presentation of the FIG. 1 For example, in the closing direction (6) front vertical profile element (23) is shown.

The door fitting (30) comprises a support plate (38) and a retaining element (61) for attachment to the support frame (12). The abutment plate (38) projects downwards from the bottom plate (37) of the door fitting (30) on the front side (33) of the door fitting (30) oriented in the closing direction (6). By means of a fastening screw (22), it is screwed together with the vertical profile element (23) with the horizontal profile element (13).

The retaining element (61) is arranged on the rear side of the door fitting (30) facing away from the front side (33). In the exemplary embodiment, the holding element (61) is attached to an on the back of the door fitting (30) outstanding elbow (53). In addition, it is for example - spaced from the angle piece (53) - locked with the door fitting (30). The holding element (61) comprises two clamping legs (64), with which it is locked non-positively and / or positively in the horizontal profile element (13). The door fitting (30) sits firmly on the support frame (12).

The FIG. 3 shows a door fitting (30). The door fitting (30) comprises a housing (34). This housing (34) has a lower floor plate (37) to which a housing cover (35) is attached. In the embodiment, the bottom plate (37) is made of a metallic material. The housing cover (35) consists for example of a thermoplastic or a thermosetting plastic. However, it is also conceivable to produce the bottom plate (37) and the housing cover (35) from the same material. A sliding shoe (46) on the upper side (47) of the door fitting (30) limits a tilting of the sliding door (10), for example, during abrupt braking.

In the housing (34) an acceleration and deceleration device (41) is arranged. This includes a driving element (42) which can be moved between a parked and / or positively locked parking position and an end position. For example, when closing the sliding door (10) contacted in the door guide rail (1) arranged driver (2), the driving element (42) and coupled with this. The entrainment element (42) is released from the parking position. As a result, it is simultaneously activated by means of an accelerator, e.g. a relaxing Federenergiespeichers, accelerated and decelerated by means of a delay device. The delay device comprises, for example, a cylinder-piston unit. The resultant force from the accelerator and decelerator acts on the driver element (42). The sliding door (10) is controlled in the e.g. closed end position, where it stops without striking.

Parallel to the longitudinal direction (5), the door fitting (30) has an insertion opening (36) adjacent to the front side (33). This is arranged in the housing cover (35) and comprises the entire travel of the driving element (42). In this insertion opening (36), the carrier element (42) makes contact with the driver (2) projecting into the insertion opening (36).

At the outer corners of the front side (33) of the housing (34), two transverse guide rollers (31, 32) are rotatably mounted. The transverse guide rollers (31, 32) are symmetrical to one vertical center longitudinal plane of the door fitting (30). The axis of rotation of the transverse guide rollers (31, 32) is normal to the longitudinal direction (5) and aligned parallel to the vertical center longitudinal plane. The cylindrically shaped transverse guide rollers (31, 32) project laterally, for example, by 15% of their diameter over the envelope contour of the housing (34). They are thus more than 10% of their diameter out of the housing (34), so that a collision of the longitudinal webs (3, 4) of the door guide rail (1) with the housing (34) is prevented. The inner width of the door guide rail (1) delimited by the longitudinal webs (3, 4) corresponds, for example, to the nominal dimension of the width of the door fitting (30) measured via the transverse guide rollers (31, 32). In the operating state, the door fitting (30) for example rolls with both transverse guide rollers (31, 32) on the longitudinal webs (3, 4).

In the embodiment, the transverse guide rollers (31, 32) also on the front side (33) from the housing (34) out. In this direction, the supernatant, for example, 15% of the diameter of a transverse guide roller (31, 32).

The transverse guide rollers (31, 32) continue to protrude into the limited by two mutually parallel housing edges insertion opening (35). Here, the supernatant is for example 5% of the diameter of a transverse guide roller (31, 32).

In the FIG. 4 a cross section of the door fitting (30) is shown, wherein the cutting plane is normal to the vertical center longitudinal plane of the door fitting (30) and the transverse guide rollers (31, 32) cuts in the middle. The two, for example, identical transverse guide rollers (31, 32) are cylindrical. They comprise a tire-like rubber sleeve (71), which engages around the outer ring (76) of a rolling bearing (77) in a form-fitting manner. In this case, the center transverse plane of the rolling bearing penetrates (77) in the middle of the tread (72) of the rubber boot (71). The pot-shaped in the embodiment rubber sleeve (71) is closed at its top. It engages under the outer ring (76) of the rolling bearing (77) with 20% of its height. The outer diameter of the rubber sleeve (71) measured via the running surface (72) is 23% greater than the outer diameter of the rolling bearing (77).

The rolling bearing (77) is in the embodiment a sealed on both sides, single-row deep groove ball bearings with a grease life lubrication. Its outer diameter in this example is 3.25 times the inner diameter. The height of the transverse to the vertical center longitudinal plane of the door fitting (30) arranged rolling bearing (77) is 25% larger than its inner diameter. The use of differently constructed bearings (77) or the use of plain bearings is conceivable.

The single roller bearing (77) sits with its inner ring (78) on a journal (81). This journal (81) is fixed in the bottom plate (37) of the door fitting (30) and cantilevered out of this.

The FIG. 5 shows a journal (81) prior to installation in the door fitting (30). The axle journal (81) produced, for example, from a metallic material is a shaft component with four mutually coaxial sections (82-85) of different diameters. Its two end faces (86, 88) have central depressions (87, 89). These depressions (87, 89) have in the representation of FIG. 5 in each case a cylindrical depression section (91) and a conical depression base (92). The wall thickness of the journal (81) surrounding the cylindrical recess portion (91) is smaller than 20% of the outside diameter of the journal (81) in the area of the respective one Depression (87, 89). The length of the journal (81) is twice its diameter.

The lowest section (82) of the in FIG. 5 Achszapfens (81) is shown an insertion portion (82). Its diameter is, for example, three quarters of the diameter of the uppermost portion (85), which is hereinafter referred to as bearing seat portion (85). The length of the Einsetzabschnitts (82) is for example one-eighth of the total length of the journal (81). Above the Einsetzubschnitts (82) increases the diameter in a cone portion (83) on the outer diameter of the journal (81). This is also the diameter of the support section (84) adjoining the conical section (83). It is 25% larger than the diameter of the bearing seat section (85). The support portion (84) has a normal to the longitudinal axis (93) of the journal (81) arranged support surface (94). This goes over in a transition groove (95) in the bearing seat portion (85). The length of the bearing seat portion (85) is for example 55% of the length of the journal (81). The diameter of the bearing seat portion (85) is four millimeters in the embodiment.

During assembly, the axle journals (81) with the insertion sections (82) are inserted into openings (39) in the base plate (37). From the bottom, for example, by means of a grain tool, the lower depressions (89) are widened, so that they engage behind the bottom plate (37), cf. FIG. 4 , The stub axles (81) now sit firmly and non-rotatably in the bottom plate (37) of the door fitting (30). On the bearing seat portions (85) of the axle journal (81) in each case a roller bearing (77) is pushed. After the bearing assembly, the respective inner ring (78) of the rolling bearing (77) is seated with a press fit or with a transition fit on the bearing seat portion (85). The single inner ring (78) abuts the support surface (95). To secure the roller bearing (77), the upper recess (87) of the axle journal (81) is widened, for example by means of a grain tool, so that the inner ring (78) in the direction of the longitudinal axis (93) of the axle journal (81) is firmly clamped. Subsequently, the elastically deformable rubber sleeve (71) is slipped over the outer ring (76) of the rolling bearing (77). The two transverse guide rollers (31, 32) now have a constant distance from each other.

After installation of the acceleration and deceleration device (41) in the door fitting (30) of the housing cover (35) can be placed and secured, for example, with fasteners on the bottom plate (37). The housing cover (35) projects over a portion of the transverse guide rollers (31, 32). It is spaced therefrom and has no contact with the stub axles (81). Another order of assembly is conceivable.

When opening and closing the sliding door (10) roll with ideal adjustment both transverse guide rollers (31, 32) along the entire useful length of the longitudinal webs (3, 4) of the door guide rail (1) from. In a clearance fit between the door guide rail (1) and the door fitting (30), for example, only one transverse guide roller (31; 32) bears against one of the longitudinal webs (3; 4). The other transverse guide roller (32; 31) stands still. When approaching the driver (2) this first contacted the stationary transverse guide roller (32, 31). This transverse guide roller (32; 31) rolls on the driver (2), wherein the sliding door (10) is centered. Upon further displacement of the driver (2) immovable moves into the insertion opening (36) of the housing (34). Here, the driving element (42) contacts the driver (2). As described above, solves the Carrier (2) the driving element (42) from its locked parking position and leads coupled in the final position. If the sliding door (10) and / or the door guide rail (1) in the longitudinal direction (5) have a bend or a ripple, allows the door fitting (30) - for example, together with a second similar door fitting (30) at the other end of the door - a jerk - And stop-free guidance of the sliding door (10). In this case, for example, the right and the left transverse guide rollers (31, 32) alternately rest against a longitudinal web (3, 4) or both transverse guide rollers (31, 32) can roll off at the two opposite longitudinal webs (3, 4) at the same time. When approaching the end position centered in this case, the fixed driver (2), the sliding door (10), which is promoted without cross-stroke in the example closed end position.

LIST OF REFERENCE NUMBERS

1

Door guide rail

2

takeaway

3

longitudinal web

4

longitudinal web

5

longitudinal direction

6

closing direction

10

sliding door

11

sliding sheet

12

supporting frame

13

horizontal profile element

22

fixing screw

23

vertical profile element

30

door fittings

31

Transverse guide roller

32

Transverse guide roller

33

front

34

casing

35

housing cover

36

insertion

37

baseplate

38

bearing plate

39

breakthroughs

41

Acceleration and deceleration device

42

driving element

46

shoe

47

top

53

elbow

61

retaining element

64

clamping leg

71

rubber sleeve

72

tread

76

outer ring

77

roller bearing

78

inner ring

81

journal

82

insertion

83

cone section

84

support section

85

Bearing seat section

86

Front side, top

87

Depression, above

88

Front side, bottom

89

Depression, below

91

Depression section

92

Depression base

93

Longitudinal axis of (81)

94

support surface

95

transition groove

Claims (6)

1. An upper door armature assembly (30) of a sliding door (10), said assembly comprising a housing (34) having a lower bottom panel (37) and a housing lid (35) secured thereto, as well as a pair of transverse guide rollers (31, 32) each mounted for rotation on an axle trunnion (81), with the axle trunnions (81) arranged to be parallel with each other and symmetrically relative to a vertical central longitudinal plane of the door armature assembly (30), with both axle trunnions (81) rigidly secured in the housing (34), with the pair of transverse guide rollers defining an insertion opening (36) of the housing (34) and with the axle trunnions (81) mounted immovably in a freely cantilevered relationship and secured at one end thereof in the housing (34), characterized in that

   - the housing (34) extends beyond the free ends of the axle trunnions (81) and in that the housing lid (35) extends over a section of the transverse guide rollers (31, 32) in a spaced relationship thereto and without contacting the axle trunnions (81).
2. Upper door armature assembly (30) as claimed in claim 1, characterized in that the transverse guide rollers (31, 32) are journalled on axle trunnions (81) by rolling-motion bearings (77) sealed on both sides and lubricated for long service life.
3. Upper door armature assembly (30) as claimed in claim 1, characterized in that the transverse guide rollers (31, 32) protrude from the housing (34) by at least 10 % of their diameter in a direction normal to said central longitudinal plane.
4. Upper door armature assembly (30) as claimed in claim 1, characterized in that the transverse guide roller (31, 32) extend to protrude from the housing (34) in the longitudinal direction (5) of the door armature assembly (30).
5. Upper door armature assembly (30) as claimed in claim 1, characterized by comprising an accelerating and retarding mechanism (41).
6. Sliding door (10) comprising a door armature assembly (30) as claimed in claim 1.

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