WO2011006477A1

WO2011006477A1 - Self-closing hinge

Info

Publication number: WO2011006477A1
Application number: PCT/DE2010/000804
Authority: WO
Inventors: Günther Zimmer; Martin Zimmer
Original assignee: Zimmer Guenther; Martin Zimmer
Priority date: 2009-07-14
Filing date: 2010-07-13
Publication date: 2011-01-20
Also published as: EP2454433A1; DE102009033222B3; EP2454433B1

Abstract

The invention relates to a hinge having two legs that can be swiveled relative to each other between an initial position and a final position, and having at least one spring element, which acts opposite to the swivel direction starting from the initial position. For this purpose, one leg carries a central shaft and the other leg carries an outer sleeve coaxial to the central shaft. An intermediate sleeve is arranged between the central shaft and the outer sleeve. The hinge comprises at least one displacement element, which, in the initial position of the hinge, is supported in an opening of the intermediate sleeve and either in a hole of the central shaft or in a receptacle of the outer sleeve. The spring element is arranged between the intermediate sleeve and the outer sleeve or central shaft not supporting the displacement element in the initial position. The present invention develops a hinge the self-closing of which is limited to a partial swivel angle.

Description

Hinge with self-closing

Description: The invention relates to a hinge with two relative to each other between a basic position and an end position

pivotable legs and with at least one counter to the outgoing from the basic position pivoting direction acting spring element.

From EP 1 900 896 A2 a self-closing door is known. The door is raised during the pivoting movement against gravity and under load of a compression spring along a backdrop. Closing is assisted by the relaxing compression spring.

The present invention is based on the problem of developing a hinge whose self-closing is limited to a partial pivot angle.

This problem is solved with the features of the main claim. For this purpose, a leg carries a central shaft and the other leg coaxial with the central shaft outer sleeve. Between the central shaft and the outer sleeve, an intermediate sleeve is arranged. The hinge comprises at least one displacement body, which in the basic position of the hinge in a breakthrough of the intermediate sleeve and is mounted either in a recess of the central shaft or in a receptacle of the outer sleeve, wherein at least in the basic position, the recess and the receptacle are not arranged radially to each other. The spring element is arranged between the intermediate sleeve and the outer body or central shaft which does not bear the displacer body in the basic position. The pivot angle range adjacent to the basic position is limited by the pivot angle in which the recess and the receptacle are arranged radially relative to one another. The displaced in the pivoting direction in this pivoting angle of the recess in the receptacle or from the receptacle into the recess displacement body locks the spring element.

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

Figure 1 hinge;

Figure 2 exploded view of Figure 1;

Figure 3 central shaft;

Figure 4 Zwischenhü1se;

Figure 5 extension part;

Figure 6 displacement body;

Figure 7 longitudinal section of Figure 1;

FIG. 8 shows a cross section of FIG. 1;

9 shows a cross section of the hinge at the end of the

Swing angle range;

Figure 10 is a cross-section of the hinged hinge;

FIG. 11, displacement of the displacement body;

Figure 12 model of the hinge;

Figure 13 Figure 12 with swiveled leg; FIG. 14: Hinge with open basic position.

Figure 1 shows a hinge (1), e.g. a cylinder band (1). Such fittings are used on windows or doors whose pivot angle from a closed position to an open position, e.g. up to 180 degrees. The cylinder bands (1) can be designed for the right or left stop of a window or a door. The door can be a building or room or vehicle door. Also, the insert is in the door of a stationary or vehicle-mounted household appliance, e.g. a refrigerator of a mobile home, conceivable. The Anschraubband shown (1) has two relative to each other about a pivot axis (5) pivotable leg (10, 30). It connects e.g. a frame or a frame with a door leaf. The first, for example, fixed leg (10) is e.g. Fastened to the frame by means of fastening screws. The second leg (30) is then struck on the door leaf.

The hinge (1) can also be fastened to the frame with the first leg (10) and with the second leg (30) on the frame. It can also be designed as a boring band, fish tape, pot band, etc.

The fixed leg in the exemplary embodiment (10) consists of a metal sheet. This forms two aligned substantially cylindrical sleeve sections (11, 12) which are connected by means of an L-shaped bent web (13). The imaginary bending line (14) is parallel to the pivot axis (5) of the hinge (1). Adjacent thereto, the fastening tab (16), for example, five countersunk recesses (17) for Recording example of mounting screws has. At its two ends of the fastening tabs (16) eg notches (18). In a sleeve portion (11) arranged aperture (19) sits a retaining pin (23) carrying a first hinge pin (50) as part of the hinge pin.

The leg (30), which can be pivoted in FIG. 1, comprises in the representation of FIG. 1 a largely cylindrical sleeve section (31) and a fastening tab (32). The latter has e.g. three notches (33) for receiving e.g. from mounting screws. In a breakthrough (34) sits a retaining bolt (24) having a second hinge pin (70), see. Figure 2, wears.

The pivotable leg (30) is mounted by means of sliding sleeves (21, 22) in the fixed leg (10). FIG. 2 shows an exploded view of the hinge (1). The first hinge pin (50) comprises a central shaft (51). The central shaft (51) is shown as a single part in FIG. This is a cylindrical shaft with two diameter ranges (52, 53). The larger diameter region (52) has, for example, two radial bores (54) offset by a quarter circle from each other. In the assembled state, one of these bores (54) receives the retaining bolt (23). The offset region (53) has, for example, a total of three recesses (55), of which only one longitudinal groove (55) is shown in the illustration of FIGS. 2 and 3. The two other longitudinal grooves are arranged, for example, on the same imaginary cylinder as the first longitudinal groove (55). In the direction of the swivel Axle (5), the grooves are offset from one another, so that the cylinder sections comprising the longitudinal grooves do not overde ^¬ ck. The single longitudinal groove (55), for example, has the shape of a keyway. It has in cross-section a flat groove bottom (56) and at right angles to the groove bottom (56) arranged groove flanks (57). The cross section of the groove (55) can also be circular segment-shaped. The individual longitudinal grooves may have different lengths.

On the central shaft (51) sits an intermediate sleeve (60). In the mounted state, the intermediate sleeve (60) engages around the peripheral surface (59) of the central shaft (51). In the figure 4, the intermediate sleeve (60) is shown as a single part. The intermediate sleeve (60) comprises a sleeve-like portion (61), a guide pin (62) and a stop (63).

The sleeve-like section (61), for example, has a constant wall thickness. The outer diameter of the sleeve-like portion (61) is smaller than the diameter of the larger diameter portion (53) of the central shaft (51). The sleeve wall (64) has, for example, three radially oriented apertures (65) whose arrangement and size correspond to the arrangement and size of the longitudinal grooves (55) of the central shaft (51).

The guide pin (62) is for example a cylindrical pin whose diameter is about 40% of the outer diameter of the intermediate sleeve (60).

On the guide pin (62) and on the end face (66) of the sleeve-like portion (61) of the stop (63) is formed, for example. The block-shaped stop (63) has, for example, a stop surface (67). The pivot axis (5) is for example parallel IeI to the plane of this stop surface (67). It can also be in this plane.

The second hinge pin (70) comprises in the exemplary embodiment an outer sleeve (71) and an extension part (72).

The inner diameter of the cylinder jacket-shaped outer sleeve (71), for example, larger than the outer diameter of the intermediate sleeve (60). The outer diameter of the outer sleeve (71) is smaller than the inner diameter of the sleeve portion (31) of the movable leg (30). The sleeve wall (73) has a constant cross-section. It has four each through a quarter circle offset through holes (74) and three receptacles (75), of which in the illustration of Figure 2, only one receptacle (75) is shown. The receptacles (75) are formed in the embodiment as elongated holes (75). But they can also be formed as depressions of the inner wall (76) of the outer sleeve (71). The location and size of the receptacles (75) corresponds to the position and size of the openings (65) of the intermediate sleeve (60).

The extension part (72) consists in the embodiment of a cylindrical portion (77), a remote for this, also cylindrical portion (78), a guide pin (79) and a stop (81). In the figure 5, the extension part is shown as a single part. The cylindrical portion (77) has an end-side adjustment slot (83). The offset cylindrical section (78) has two through-bores (82) offset by a quarter circle, for example. The stop (81) and the guide pin (79) are constructed as the stop (63) and the guide pin (62) of the intermediate sleeve (60). The visible in Figure 5 stop surface (86) of the stop (81) has in the illustration of Figure 2 downwards. Furthermore, the hinge (1) comprises, for example, three displacement bodies (90) and a spring element (100). The displacement body (90) are in the embodiment cylinder (91, 92), whose end faces (93) are formed as tips, see. Figure 6. The displacement body (90) may also be formed disc or ball-like. The displacement bodies (90) shown in FIG. 2 have different lengths. The long cylindrical body (91) is slightly shorter than the long hole (65). Its diameter is smaller than the width of this slot (65). The two shorter bodies (92) are shorter than the shorter oblong holes (65) concealed in FIGS. 2 and 4. The spring element (100) is in the exemplary embodiment, a coil spring (101) in the design of a torsion spring. The torsion spring (101) has straight ends (102), for example.

When mounting the hinge (1), for example, first the intermediate sleeve (60) is fitted onto the central shaft (51). Here, the intermediate sleeve (60) is rotated so that the slots (65) over the longitudinal grooves (55) are. Next, the displacers (90) are then inserted into the elongated holes (65). After insertion, the displacement bodies (90) are flush with the lateral surface (68) of the intermediate sleeve (60) or dip into the sleeve wall (64). The outer sleeve (71) is placed on the intermediate sleeve (60) so that the receptacles (75) are not aligned with the oblong holes (65). The unit prepared in this way can be inserted into the two aligned legs (10, 30) which are aligned with one another, with the sliding sleeves (21, 22) being interposed. Now, the first retaining pin (23) through the openings (19) and the through holes (54) are mounted. From the other side of the hinge, the spring (100) and the extension Part (72) used. Lastly, the second retaining bolt (24) is mounted through the apertures (34) and through-holes (74) and (82). After assembly, the central shaft (51), the intermediate sleeve (60) and the outer sleeve (71) are coaxial with each other and coaxial with the pivot axis (5). To adjust the pivoting angle of the hinge (1) can after rotation of the retaining pin (24) of the extension part (72), for example, rotated in 90 degree increments. For this purpose, for example, a screwdriver can be used, which engages in the adjustment slot (83).

The thus prepared hinge is e.g. mounted on a frame and on a door leaf. After assembly is the second

Hinge pin (70) about the pivot axis (5) relative to the first hinge pin (50) pivotally. The swivel angle of the

Hinge (1) from the basic position (6) to the end position in the exemplary embodiment is 110 degrees. It can also be 130 degrees. FIG. 7 shows a longitudinal section of the hinge (1). FIG. 8 shows a cross section of this hinge (1). The sectional plane of this illustration, for example, intersects the long cylindrical body (91). The door leaf is closed, for example. This closed pivoting position of the hinge (1) is referred to below as the basic position (6).

When the door is opened, the movable leg (30) pivots counterclockwise with the outer sleeve (71) and the extension part (72) in the illustration of FIGS. 8 and 9 in the pivoting direction (8). In a pivoting angle range (7) adjoining the basic position (6), the outer sleeve (71) rotates about the pivot axis (5) relative to the fixed central shaft (51), the intermediate sleeve (60) and the displacement body. pern (90). The stops (63, 81) abut with the abutment surfaces (67, 86) against the ends (102) of the spring (100). The spring element (100) is twisted and thereby tightened. The displacers (90) maintain their position relative to the fixed leg (10). The holding forces are distributed in the embodiment over all three displacement body (90).

The described, to the basic position (6) adjacent

Pivoting angle range (7) is limited by the pivoting angle, in which the receptacles (75) of the outer sleeve (71) are radially outside the slots (65) and the longitudinal grooves (55). This pivot angle, shown in FIG. 9, is for example 45 degrees. Upon further pivoting in the pivoting direction (8), the displacement bodies (90) are displaced radially outwards in the direction of the receptacles (75) of the outer sleeve (71) by means of the off-center acting force of the central shaft (51). FIG. 11. In this illustration, the displacement bodies (90) are already displaced radially outward from the groove base (56) in the direction of the outer sleeve (71). The displacement bodies (90) project over the sleeve wall (64) both in the direction of the outer sleeve (71) and also in the direction of the longitudinal groove (55). Upon further rotation of the movable leg (30) in the pivoting direction (8), the displacement body (90) are further displaced into the receptacle (75) of the outer sleeve (71). After displacement, the displacement body (90) in the slots (65) and in the receptacles (75). They prevent further rotation of the intermediate sleeve (60) relative to the outer sleeve (71). Since the outer sleeve (71) and the intermediate sleeve (60) no longer rotate relative to each other during further pivoting in the pivoting direction (8), the spring element (100) is not stretched further. The spring element (100) now remains in the cocked position. Upon further pivoting of the door leaf, the movable leg (30) continues to rotate with the outer sleeve (71) and the intermediate sleeve (60). The spring element (100) remains taut so that the door leaf can be opened further in the freewheel. It can now be stopped in any position and then stand in that position. Such a hinge position is shown in FIG. The hinge (1) is pivoted in this illustration by an angle of 90 degrees.

When closing the door panel, the door hinge (1) is e.g. from the position shown in FIG. 10 in the clockwise direction, that is to say pivoted counter to the pivoting direction (8) into the position shown in FIG. The spring element (100) is initially stretched. The outer sleeve (71), the intermediate sleeve (60) and the displacement body (90) are pivoted. The door leaf can be stopped at any time until the position shown in FIG. 9 has been reached. As soon as the apertures (65) are above the recesses (55), the relaxing spring (100) causes a relative movement of the intermediate sleeve (60) to the outer sleeve (71). The displacement bodies (90) are entrained and displaced radially inwards by the edge (84) of the receptacles (75). The displacement bodies (90) are received by the longitudinal grooves (55). The spring (100) continues to relax. It presses apart the abutment surfaces (67, 86) of the intermediate sleeve (60) and of the extension part (72) and pulls the door leaf into its closed basic position (6).

Figures 12 and 13 show a simplified example of a hinge (1) with freewheel and self-closing. In this embodiment, the outer sleeve (71) with the receptacle men (75) fixed and the central shaft (51) with the adjustment slot (58) rotatable. The device comprises two displacement bodies (90) and two spring elements (100). The latter are tension springs (103) which are each arranged between two spring pins (69, 85) of the intermediate sleeve (60) and the outer sleeve (71).

When rotating the central shaft (51) clockwise or counterclockwise from the position shown in Figure 12, the displacement body (90) and the intermediate sleeve (60) are taken. During this rotation, the spring elements (100) are tensioned.

As soon as the receptacle (75) of the outer sleeve (71) is above the apertures (65) of the intermediate sleeve (60), the displacement body (90) is displaced to the outside upon further rotation of the central shaft (51). They are pushed out of the longitudinal grooves (55) of the central shaft (51) and pushed into the receptacles (75) of the outer sleeve (71). Upon further rotation of the central shaft (51) only this turns on alone. The intermediate sleeve (60) with the displacement bodies (90) stops. The spring tension is not changed during further rotation of the central shaft (51). The spring (100) is locked by means of the displacement body (90). The turning back of the central shaft (51) from the position shown in Figure 13 in the position shown in Figure 12 initially takes place as a free rotation. As soon as the longitudinal grooves (55) lie radially within the apertures (65), the locking of the displacers (90) is released. The displacement body (90) are pushed into the longitudinal grooves (55). The spring elements (100) pull the intermediate sleeve (60) and via the displacement body (90) the central shaft (51) back to the starting position. The intermediate sleeve (60) may be constructed like a segment, for example in two shells. In the assembled state, the displacement body (90) then lie between the shells. The central shaft (51) can be integrated in one of the hinge wings (10, 30). It is also conceivable that the outer sleeve (71) in the other leg (30, 10) is integrated. For example, then the recesses (75) are introduced into the movable leg (30).

The hinge (1) can also be constructed so that it is open in its basic position (9), cf. Figure 14. For example, in this embodiment, the pivot angle of the basic position (9) to the closed end position is 110 degrees. In this case, the spring element (100) is clamped and locked in a predetermined pivoting angle position when closing in a pivoting angle region adjoining the basic position (9). The further closing of the hinge (1) then takes place without further tensioning of the spring element (100). When opening, the hinge (1) is pulled into the open basic position (9) with relaxation of the spring element (100) starting at the predetermined pivoting angle position.

It is also conceivable, in the case of several hinges (1), to insert on a door one with a feed device into the closed position and one with a feed device in the open position. Between the two pivoting angle ranges, in each of which a hinge is pulled into its basic position, may be a freewheeling angle range.

The self-closing hinge (1) may be combined with a cushioning and / or a retarding device. Combinations of the various embodiments are conceivable.

List of reference numbers:

1 hinge, cylinder belt, bolting 5 pivot axis

6 basic position, closed

7 Swivel angle range, adjacent to (6)

8 swing direction

9 basic position, open

10 fixed leg, first leg

11 sleeve section

12 sleeve section

13 footbridge

14 bending line

16 fastening lugs

17 recesses

18 notches

19 breakthrough

21 sliding sleeve

22 sliding sleeve

23 retaining bolts

24 retaining bolts

30 movable thigh, second thigh

31 sleeve section

32 fixing lugs

33 notches

34 breakthrough

50 hinge pin, mandrel part

51 inner shaft, central shaft

52 diameter range 53 diameter range

54 through holes

55 recess, longitudinal groove

56 groove base

57 groove flanks

58 adjustment slot

59 peripheral surface

60 intermediate sleeve

61 sleeve-like section

62 guide pins

63 stop

64 Hü1senwandung

65 breakthroughs; slots

66 front side

67 stop surface

68 lateral surface

69 spring pin

70 second hinge pin, mandrel part

71 outer sleeve

72 extension part

73 Hü1senwandung

74 through holes

75 shots, long holes

76 inner wall

77 cylindrical section

78 stepped section

79 guide pins

81 stop

82 through holes

83 insertion slot

84 edge 85 spring pin

86 stop surface

90 displacement body

91 cylinders, long

92 cylinders, short

93 faces

100 spring element

101 coil spring, torsion spring

102 ends of (101)

103 tension springs

Claims

claims:

1. Hinge (1) with two relative to each other between a basic position (6, 9) and an end position of pivotable legs (10, 30) and with at least one against the of the basic position (6, 9) outgoing pivot direction (8) acting spring element ( 100), characterized

in that one leg (10, 30) carries a central shaft (51) and the other leg (30, 10) carries an outer sleeve (71) coaxial with the central shaft (51),

that between the central shaft (51) and the outer sleeve (71) an intermediate sleeve (60) is arranged,

in that the hinge (1) comprises at least one displacement body (90) which, in the basic position (6, 9) of the hinge (1), is located in an opening (65) of the intermediate sleeve (60) and either in a recess (55). of the

Central shaft (51) or in a receptacle (75) of the outer sleeve (71) is mounted, wherein at least in the basic position (6, 9), the recess (55) and the receptacle (75) are not arranged radially to each other,

that the spring element (100) is arranged between the intermediate sleeve (60) and the outer sleeve (71) or central shaft (51) which does not bear the displacement body (90) in the basic position (6, 9),

- that one to the basic position (6, 9) adjacent

Swivel angle range (7) is limited by the pivot angle, in which the recess (55) and the receptacle (75) are arranged radially to each other and

- That when pivoting in the pivoting direction (8) in

this pivoting angle from the recess (55) into the receptacle (75) or from the receptacle (75) into the recess (75). (55) displaced displacement body (90) the spring ^¬ element (100) locked.

2. Hinge (1) according to claim 1, characterized in that it is a ZyIinderband (1).

3. Hinge (1) according to claim 1, characterized in that the spring element (100) between the intermediate sleeve (60) and the outer sleeve (71) is arranged.

4. Hinge (1) according to claim 1, characterized in that the spring element (100) is a torsion spring (101).

5. Hinge (1) according to claim 4, characterized in that the torsion spring (101) with both ends (102) stops (63, 81) of the intermediate sleeve (60) and the outer sleeve (71) loaded.

6. Hinge (1) according to claim 1, characterized in that the spring element (100) when opening the hinge (1) is tensioned.

7. hinge (1) according to claim 1, characterized in that it comprises at least two displacement body (90).

8. Hinge (1) according to claim 7, characterized in that the displacement body (90) on a common imaginary Cylinders about the pivot axis (5) and are offset in the direction of the pivot axis (5) to each other.

9. Hinge (1) according to claim 1, characterized in that at least one receptacle (75) or a recess (55) in a leg (10, 30) is integrated.

10. Door arrangement with a frame and with a door leaf, wherein the frame and the door leaf are connected by means of at least two hinges (1) according to claim 1.

11. Door arrangement according to claim 10, characterized in that a hinge (1) has an open basic position (9) and another hinge (1) has a closed basic position (6).