ES2967301T3 - Hidden door hinge - Google Patents

Abstract

The invention relates to a concealed door hinge for pivotally fastening a door leaf in a door frame, comprising a first housing (1) that can be inserted into a narrow side of the door leaf or the door frame. In the door frame or on the narrow side of the door leaf, a multi-axis joint with two joint bodies (3, 4) can be inserted, which connects the two housings. (1, 2) with each other, first and second fixing plates. (7, 8), through which one of the housings (1, 2) is connected to the door frame or to the door leaf, the articulation bodies (3, 4) being guided in a sliding manner in a first end through a longitudinal guide (5).) in one of the housings (1, 2) and are rotatably mounted at a second end through a rotation axis (22), the position of the housing (1 , 2) can be changed with respect to the first fixing plates (7). arranged thereon perpendicularly to a front surface of the first fixing plates (7) by means of an adjustment spindle (10), the adjustment spindle (10) being on the respective fixing plate (7) and mounted in such a way stationary but rotating and is housed in a threaded hole in the housing (1, 2). (Automatic translation with Google Translate, without legal value)

Description

DESCRIPTION

Hidden door hinge

The present invention relates to a concealed door hinge for pivotally supporting a door leaf in a door frame according to the preamble of claim 1.

A generic concealed door hinge for concealed installation is known, for example, from EP 2476833 B1. The concealed door hinge known from this document essentially consists of a first hinge part mountable on a door frame and a second hinge part mountable on a door leaf.

In this regard, the two hinge parts are connected to each other by a multi-axis joint. Each of these hinge parts has a housing that can be inserted into the respective recesses in the door frame or into the narrow side of the door leaf.

The multi-axis joint has a solid articulated body and is particularly suitable as a door hinge for heavy door leaves. The articulated bodies have a basic fork-shaped shape, the housings have a pocket into which the joints can be immersed when closing.

Such a hidden door hinge has proven itself in practice.

However, the adjustment device used here for the three-dimensional adjustment of the respective hinge parts is relatively complex and, due to these adjustment possibilities, has a relatively large longitudinal extension. The articulated body is also relatively expensive to manufacture.

Other generic concealed door hinges are known from DE 102009 038 955 A1 and DE 20 2011 001 500 U1.

The objective of the present invention is to provide an easier to manufacture hidden door hinge for the pivotal support of a door leaf in a door frame with a reduced longitudinal extension.

This object is achieved by a concealed door hinge for pivoting support of a door leaf in a door frame with the features of claim 1.

The concealed door hinge according to the invention comprises a first housing insertable into a narrow side of the door leaf or the door frame and a second housing insertable into the door frame or the narrow side of the door leaf.

The concealed door hinge also features a multi-axis joint with two articulated bodies that connects both housings to each other.

The first and second fixing plates of the concealed door hinge are respectively connected via one of the housings to the door frame or the door leaf.

The articulated bodies are movably guided at a first end through a longitudinal guide in respectively one of the housings and are pivotally mounted at a second end through an axis of rotation.

The position of one of the housings can be changed with respect to the first fixing plates arranged thereon perpendicular to a front surface of the first fixing plates by means of an adjusting spindle. In this case, the adjusting spindle is fixedly but rotatably mounted on the respective mounting plate and is housed in a threaded hole in the housing.

Each of the casings has a free space in which the articulated bodies are inserted.

The free spaces are designed as two-level pockets with different pocket depths, into which the hinged bodies are immersed in the closed position of the concealed door hinge. The longitudinal guides are arranged on a deeper pocket boundary wall, which is oriented parallel to the threaded holes and abuts a flatter pocket bottom, and on the housing boundary wall opposite this, with a groove guide to receive a bearing body rotatably placed at one end of the articulated body.

By adjusting the concealed door hinge in one direction via an adjustment spindle that is only mounted on the mounting plate, an additional rear clamping plate and spacer sleeves can be dispensed with.

Advantageous embodiment variants of the invention are the subject of the dependent claims.

According to an advantageous development of the hidden door hinge according to the invention, the second fixing plates have an elongated hole for receiving a screw that can be screwed into a threaded hole in the housing, with which the position of the housing can be fixed with respect to this to the second fixing plates arranged on it.

Here, too, the rear clamping plate can be advantageously dispensed with. The screw is screwed directly into the housing.

The elongated hole is preferably oriented parallel to a pivot axis of the joint.

According to another embodiment variant, the two articulated bodies are connected to each other in a rotary movable manner by means of an axle and the axle rests fixedly on a first of the articulated bodies and is rotatably mounted on a second of the articulated bodies.

According to an advantageous embodiment variant, the articulated bodies have a basic rectangular shape in a projection onto an imaginary plane in which the axis is located.

Therefore, the articulated bodies of the hidden door hinge according to the invention are simply designed, the basic shape is rectangular and does not have projections, notches or projections. Only holes should be incorporated.

According to an advantageous development, the two articulated bodies are identical in shape, which further simplifies the manufacture of the articulated bodies.

According to another variant of configuration, the elongated hole in the fixing plate has a countersunk shape, in which a screw head preferably configured as a countersunk screw rests in the tightened state of the screw.

Similarly, according to a preferred embodiment variant, the two housings are also constructed in the same way except for different diameters of the threaded holes for the adjusting spindles in one of the housings and for the screws in the other of the housings. Thanks to the identical construction of the housings, manufacturing is simple.

According to a preferred embodiment variant, the adjusting spindle is fixed in a rotary movable manner on the fixing plate by riveting.

According to another embodiment variant, the housings have ribs that laterally delimit the respective free space on their facing sides, seen in the case of housings connected by the joint and positioned next to each other, where the length of the ribs in the direction of the axis corresponds approximately to the width of one of the articulated bodies in the direction of the axis.

According to an advantageous embodiment variant, the articulated bodies are fixed to the bearing body by means of a support washer to increase the support surface and reduce play in the support.

Next, a variant embodiment of the invention is explained with the help of the attached drawings. They show:

Figure 1: a perspective view of a variant embodiment of a concealed door hinge according to the invention in the open position from the front,

Figure 2: a perspective view of the hidden door hinge according to Figure 1 from behind, Figure 3: a perspective side view of the hidden door hinge without representing one of the articulated bodies,

Figure 4: An exploded perspective representation of the hidden door hinge shown in Figure 1,

Figure 5: a sectional representation of the hidden door hinge according to Figure 1 through a first of the housings, and

Figure 6: a sectional representation of the hidden door hinge according to Figure 1 through a second of the housings.

In the following description of the figures, terms such as up, down, left, right, front, behind, etc. They refer exclusively to the exemplary representation and position of the hidden door hinge, the multi-axis joint, the housing, the housing bodies, the articulated bodies and the like selected in the respective figures. These terms should not be understood in a limiting manner, i.e. these relationships may change due to different working positions or mirror symmetrical design or the like.

A preferred embodiment variant of a hidden door hinge is shown in Figures 1 to 6. The concealed door hinge has a first housing 1 and a second housing 2. The two housings 1, 2 are connected to each other by a joint.

The fixing plates 7, 8 fixable on the housings 1,2 serve to fix the housings 1,2 to a door frame or door leaf not shown here.

The joint consists of the joint bodies 3, 4, which are rotatably connected to each other via an axis 19. Between the joint bodies 3, 4 there is preferably a support washer 12. One of the joint bodies 3 , 4 serves as a fixed seat for the axle 19, in the other of the articulated bodies 3, 4 the axle 19 is mounted rotatably by means of a support bushing 13.

Each of the articulated bodies 3, 4 of the joint is rotatably mounted in one of the housings 1, 2 by means of a shaft 22 and support washers 14 and is guided in a longitudinally movable manner in the other of the housings. 1, 2 by means of bearing bodies 24 of a longitudinal guide 5. The bearing bodies 24 are mounted on the articulated bodies 3, 4 by means of an extension or support washer and are rotatably connected to the articulated bodies 3 , 4 with a 6 axis.

As shown in particular in Figure 4, housing extensions 16 are formed on the housings 1, 2, extending in the z direction, which normally corresponds to the vertical in the installed state of the hidden door hinge, to which the fixing plates 7, 8 can be fixed. Each of the housing extensions 16 has a threaded hole 20, 25.

The threaded hole 20 in the housing extensions 16 of the first housing 1 serves to accommodate an adjusting spindle 10 guided through a hole 30 in the respective first fixing plate 7.

The threaded hole 25 in the housing extensions 16 of the second housing 2 serves to accommodate a screw 9 guided through an elongated hole 17 in the respective second fixing plate 8.

Figure 2 shows the door hinge hidden from behind with the adjusting spindles 10 and the screws 9 protruding through the housings 1, 2. There is no counter plate as, for example, in the previously known document EP 2476 833 B1 as state of the art. The fixing plates 7, 8 are movably fixed to the housing extensions 16 of the housing 1,2 with the screw 9 or the adjusting spindle 10.

Preferably, both housings 1,2 are made geometrically identical. Only the threaded holes 20, 25 in the housing extensions 16 can be different, provided that the screw 9 and the adjusting spindle 10 have a different thread, in particular in terms of their diameter, as in the exemplary embodiment shown here. For fixing the fixing plates 7, 8 to the frame or door leaf, the fixing plates 7, 8 have fixing holes 11, through which fixing screws can be screwed into the frame or door leaf. door.

To adjust the hidden door hinge in the z direction, the elongated hole 17 provided in the fixing plates 8 is used, through which the screw 9 is guided and screwed directly into the threaded hole 25 of the housing extension 16, as It is represented in figure 6.

The elongated hole 17 is preferably provided with a conical longitudinal depression, suitable for the screw 9 preferably configured as a countersunk screw. After loosening the screws 9, the fixing plates 8 can be moved in the longitudinal direction of the elongated hole 17, here in the z direction. After tightening the screw 9, the fixing plate 8 is fixed to the housing 2, so the housing 2 is also fixed to the door leaf or door frame. The screw 9 can be configured as a flat head or also as a countersunk head screw. A corresponding countersink (flat or conical) is incorporated into the elongated hole 17 in the fixing plate 8, so that the head of the screw 9 can be immersed in the fixing plate 8. A resting screw head is also conceivable.

The threaded hole 20 formed in the fixing plate 7, into which the adjusting spindle 10 can be screwed, serves to adjust the hidden door hinge in the y direction, which corresponds to the longitudinal extension of the spindle 10, as shown. in figure 5.

The fixing is carried out in such a way that the adjusting spindle 10 can be rotated, but can no longer be removed from the fixing plate 7. This is preferably done by configuring the hole 30 as a countersunk hole 31 and riveting or flanging a head 32 of the adjusting spindle. 10.

By turning the adjusting spindle 10, the distance between the fixing plate 7 and the housing 1 changes. This allows the position of the door leaf inside the frame to be changed when the concealed door hinge is installed. On flush doors, the visible clearance distance can be adjusted around the entire perimeter.

As further shown in Figures 1, 3 and 4, each of the housings 1, 2 has a free space in which the articulated bodies 3, 4 are inserted.

In the variant embodiment shown here, the free spaces are configured as two-level pockets 15, 21 with different pocket depths T1, T2, into which the articulated bodies 3, 4 are immersed in the closed position of the door hinge. hidden

A respective end of the articulated bodies 3, 4 is mounted in the housings 1, 2 in precisely adjusted recesses. The recess is as wide as the articulated bodies 3, 4, if necessary also somewhat wider to be able to incorporate the support washers. In this way a high level of stability is achieved. In this design the use of spacer bushings can be dispensed with.

To this end, the housings 1,2 have the ribs 18 that laterally delimit the respective free space 15, on their sides facing each other, seen in the case of the housings 1, 2 connected by the joint and positioned side by side. , as shown in Figure 4, where the length L of the ribs 18 in the direction of the axis 19 corresponds approximately to the width B of one of the articulated bodies 3, 4 in the direction of the axis 19. On a front side of the rib 18, as well as in a surface of the housing 1, 2 opposite this front surface in the z direction, a respective bearing hole 33 is incorporated, which serves to accommodate a rotation axis 22 housed in the respective articulated body. 3. 4.

The rotation shafts 22 are press-fitted into the housings 1, 2, so that the articulated bodies 3, 4 are rotatably mounted at one end through the rotation shafts.

The longitudinal guides 5 at the other end of the articulated bodies 3, 4 are partially incorporated into the pockets 15, 21. Thus, as can be clearly recognized in Figures 1 and 4, the longitudinal guides 5 are arranged in a boundary wall 28 of the deepest pocket 21 oriented parallel to the threaded holes 20, 25 that abuts a bottom 26 of the flattest pocket 15, and on the boundary wall 29 of the housing 1,2 opposite this, with a slot guide 23 to receive a bearing body 24 rotatably placed at one end of the articulated body 3, 4.

An advantageous configuration of the longitudinal guide 5 is the use of bearing bodies 24 configured as bearing pistons. A polygonal, in particular parallelepiped, embodiment of the longitudinal guide 5 is also possible.

Between the longitudinal guides 5 and the articulated body 3, 4, support washers 6 are preferably additionally incorporated to additionally support the articulated bodies 3, 4 and increase the support surface.

The longitudinal guide 5 can also be configured as a guide body with extension. In this case the support washer can be omitted. The support washers limit the support play between the articulated bodies 3, 4 and the bearing bodies 24 of the longitudinal guides 5. The articulated bodies 3, 4 are mounted in a rotary movable manner with one or two axes in the bearing bodies 24, the shaft or shafts are pressed into the articulated body and are rotatably mounted in the bearing body 24.

Figure 3 shows the two-level pocket 15, 21 in the housings 1,2. The articulated body 4 is mounted between the rib 18 and the lateral pocket limit of the pocket 15.

The articulated body 4 is mounted in the other housing 2 with longitudinally movable bearing bodies 24. The bearing bodies 24 are located directly in the articulated body 4, in the transition between the pocket 15 and 21 a bearing body 24 sits. When the hidden door hinge is closed, the bearing body 24 disappears into the housing 1, 2, the other articulated body 3 can be completely immersed in the pocket part 15.

List of reference numbers

1 Housing

2 Housing

3 Articulated body

4 Articulated body

5 Longitudinal guide

6 Support washer

7 Fixing plate

8 Fixing plate

9 Screw

10 Adjustment spindle

11 Adjustment hole

12 Support washer

13 Support bushing

14 Support washer

15 Pocket

16 Extension

17 Elongated hole

18 Nerve

19 Axis

20 Threaded hole

21 Pocket

22 Rotation axis

23 Guide groove

24 Bearing body

25 Threaded hole

26 Background

27 Background

28 Wall

29 Wall

30 Hole

31 Countersunk hole

32 Rivet

33 Rotary axis housing

34 Thread

T1 Pocket Depth

T2 Pocket Depth

L Nerve length

B Width of articulated body

Claims (11)

1. Concealed door hinge for the pivotal support of a door leaf in a door frame, comprising - a first housing (1) insertable into a narrow side of the door leaf or the door frame and a second housing (2) insertable into the door frame or into the narrow side of the door leaf, - a multi-axis joint with two articulated bodies (3, 4), which connects the two housings (1,2) to each other, - first and second fixing plates (7, 8), through which one of the housings (1,2) with the door frame or with the door leaf, - where the articulated bodies (3, 4) are movably guided at a first end through a longitudinal guide (5) in respectively one of the housings (1, 2) and are pivotally mounted at a second end at through a rotation axis (22), - where the position of one of the housings (1,2) with respect to the first fixing plates (7) arranged therein can be changed perpendicularly to a front surface of the first fixing plates (7) by means of a spindle adjustment (10), where the adjustment spindle (10) is fixed but rotatable mounted on the respective fixing plate (7) and housed in a threaded hole in the housing (1, 2), - where each of the casings (1, 2) has a free space in which the articulated bodies (3, 4) are inserted, characterized because - the free spaces are configured as two-level pockets (15, 21) with pocket depths (T1, T2) different from each other, in which the articulated bodies (3, 4) are immersed in a closed position of the hinge of hidden door, - where the longitudinal guide (5) is arranged on a boundary wall (28) of the deepest pocket (21) oriented parallel to the threaded holes (20, 25) that adjoins a bottom (26) of the flattest pocket (15). ), and on the boundary wall (29) of the housing (1,2) opposite this, with a guide groove (23) to accommodate a bearing body (24) rotatably placed at one end of the articulated body (3 , 4). 2. Concealed door hinge according to claim 1, characterized in that the second fixing plates (8) have an elongated hole (17) to house a screw (9) that can be screwed into a threaded hole in the housing (1, 2), with the which the position of the housing (2) can be fixed with respect to the second fixing plates (8) arranged on it. 3. Concealed door hinge according to claim 2, characterized in that the elongated hole (17) is oriented parallel to a pivot axis of the joint. 4. Concealed door hinge according to one of the preceding claims, characterized in that the two articulated bodies (3, 4) are connected to each other in a rotary movable manner by an axis (19) and the axis (1) is fixedly seated in a first of the articulated bodies (3, 4) and is rotatably mounted on a second of the articulated bodies (3, 4). 5. Hidden door hinge according to claim 4, characterized in that the articulated bodies (3, 4) have a basic rectangular shape in a projection on an imaginary plane in which the axis (19) is located. 6. Hidden door hinge according to one of the preceding claims, characterized in that the two articulated bodies (3, 4) are the same in shape. 7. Concealed door hinge according to claim 2 and optionally according to one of claims 3 to 6, characterized in that the elongated hole (17) in the fixing plate (8) has a countersunk shape, in which in the tightened state of the screw (9) a screw head (9) configured as a countersunk screw is inserted. 8. Concealed door hinge according to one of the preceding claims, characterized in that the two housings (1, 2) are configured identically constructively except for different diameters of the threaded holes (20, 25) for the adjustment spindles (10) in one of the the housings (1,2) and for the screws (9) in the other of the housings (1,2). 9. Concealed door hinge according to one of the preceding claims, characterized in that the adjustment spindle (10) is fixed in a rotary movable manner on the fixing plate (7) by riveting. 10. Hidden door hinge according to one of the preceding claims, characterized in that the housings (1, 2) have ribs (18) that laterally delimit the respective free space (15) on their sides facing each other, as seen in the case of housings (1,2) connected by the joint and positioned next to each other, where the length (L) of the ribs in the direction of the axis (19) corresponds approximately to the width (B) of one of the articulated bodies (3, 4) in the direction of the axis (19). 11. Concealed door hinge according to one of the preceding claims, characterized in that the articulated bodies (3, 4) are mounted on the bearing body (24) by means of a support washer (6) to increase the support surface and reduce the support game.