Furniture hinge

[0033] figure 1 The previous perspective view shows the furniture hinge 10 in the first position of the lifting arrangement.

[0034] The hinge arm 20 and the stopper 11 are associated with the furniture hinge 10. The hinge arm 20 is connected to the stopper 11 through a joint. Along the rear span 20.1 of the hinge arm 20, a depth adjustment screw 21.1, a positioning member 21.2, and a support adjustment screw 21.3. are arranged. The side legs 20.4 are connected to the rear span 20.1 on both sides. The hinge arm 20 is engaged in a connecting piece 30 including a connecting hook 31. Towards the joint, the back span 20.1 transitions via a transition section 20.2 into a section 20.3 recessed relative to the back span 20.1. The recessed section 20.3 is connected to an external hinge lever 23 via an external articulation connection 22, the external hinge lever includes an operating surface 23.1 with a protrusion 23. 2 which is oriented towards the hinge cup 52 with the operating member 40. The outer joint connector 22 is formed with an outer joint pin 22.1 as a shaft, which is introduced into the side leg 20.4. Correspondingly, the inner joint pin 24 of the inner joint pin (not shown) is held in the side leg 20.4.

[0035] The stopper 11 is associated with the hinge cup 50 having the hinge cup 52 and the flange cover 51 and with the extension 70, and its second jaw 72.2. can be seen in the selected illustration.

[0036] In the installed state, the stopper 11 is associated with the furniture door, and the hinge arm 20 is associated with the main body of the furniture not shown. Here, the connecting member 30 having the connecting hook 31 is engaged in a connecting member (not shown) fastened to the main body. Through the depth adjustment screw 21.1, the positioning piece 21.2 and the support adjustment screw 21.3, the furniture door can be oriented relative to the main body.

[0037] The manipulator 40 is part of the lifting arrangement. By rotating the operating member 40, figure 2 The lifting and extending movement of the second clamping jaw 72.2 and the first clamping jaw 72.1 shown in FIG. 1 is used to fasten the stopper 11 to the furniture door.

[0038] figure 2 The stop 11 of the furniture hinge 10 is shown in an exploded view. The stopper 11 is associated with the operating member 40, the hinge cup 50, the two cams 60 and the extension member 70. The hinge cup 50 is basically formed by the flange cover 51 and the hinge cup 52. In the extension 70, the first clamping jaw 71. 1 and the second clamping jaw 71. 2 are movably connected to the flange 71. Here, the clamping jaws 71.1, 71.2 are shaped such that they at least partially radially surround the hinge cup 52 in the assembled state of the furniture hinge 10. The manipulation member 40 is designed such that it is completely arranged in the hinge cup 52 in the assembled state.

[0039] In perspective representation, image 3 The hinge cup 50 is shown with a hinge cup 52 and a flange cover 51 connected to the hinge cup 52 so as to form a single piece. The hinge cup 50 is made of metal.

[0040] The flange cover 51 is designed to be substantially flat, the two supporting areas are arranged laterally to the hinge cup 52, and in each case a tool groove 51. 1 is formed thereon. The flange cover 51 surrounds approximately half of the periphery of the hinge cup 52. It opens downwards and thus forms a flange groove 51.2. towards the furniture. With the aid of the transition part realized in the shape of the cup chamfer 52.5, the hinge cup 51 is formed by the cup side wall 52.4 and the cup bottom 52.1. In the bottom 52.1 of the cup, a rectangular groove 52.2 is provided. Adjacent to the flange cover 51, the cup side wall 52.4 of the hinge cup 52 is closed by a contact surface 52.3 oriented in the plane of the flange cover 51. On the side opposite to the flange cover 51, the joint accommodating shell 56 is arranged as a part of the hinge cup 52, and the side wall of the hinge cup also transitions into the cup bottom 52.1 through the shell chamfer 56.1. The joint receiving shell 56 has a shell groove 56.2. that opens toward the cup. On the cup side wall 52.4 of the joint accommodating shell 56, there are provided an outer joint pin bearing 54 and an inner joint pin bearing 55 in the form of perforations, which are arranged so as to face each other. Two additional facing through holes form a cam bearing 53.

[0041] The hinge cup 50 is designed to form a movable connection to the hinge arm 20 via joint pin bearings 54 and 55. Here, with the furniture door closed, the hinge cup 52 forms a groove for one end of the hinge arm 20. When the furniture door is opened, the hinge arm 20 is guided through the housing groove 56. 2 of the joint receiving housing 56 into the hinge cup 52.

[0042] In perspective representation, Figure 4 An extension 70 is shown, which has a flange 71 that is essentially flat and two clamping jaws 72.1, 72.2. The extension 70 is made of plastic. On the flange 71, on each side, a centering pin 71.1 for a tool and an insertion cut 71.2 are respectively provided. The clamping jaws 72.1, 72.2 are connected to the flange 71 via a film hinge 73 from the upper side. The film hinge 73 here includes a first film joint 73.1 oriented towards the flange 71 and a second film joint 73.2 oriented towards the corresponding clamping jaws 72.1, 72.2.

[0043] The clamping jaws 72.1, 72.2 are constructed mirror-symmetrically in the example of embodiment, so in order to simplify the illustration, only one of the clamping jaws 72.1, 72.2 is marked with an identifier in each case. The film hinge 73 is formed on the front surface fastening surface 74.1 of the jaws 72.1, 72.2, that is, the surface oriented toward the flange 71. The fastening surface 74.1 transitions into the recessed support surface 74.2. The clamping jaws 72.1, 72.2 directed radially outward include a cylindrical outer surface 74.3, and anchoring ribs 74.4 are arranged along the cylindrical outer surface. On the side opposite to the flange 71, the jaws 72.1, 72.2 each include a joint pin groove 75 in the form of a groove. The knuckle pin groove 75 is respectively formed by a side surface 75.1 and a ridge 75.5 with a ridge edge 75.6, which side surface transitions into the groove bottom 75.3 via a chamfered section 75.2. The groove bottom 75.3 terminates at a slope 75.4, which ends with a ridge edge 75.6 of a ridge 75.5.

[0044] The jaws 72.1, 72.2 are arranged to face each other so that the joint pin grooves 75 having the ridges 76 face each other at a distance. On the underside of the jaws 72.1, 72.2, below the joint pin groove 75, a front expansion extension 76 is arranged. The front expansion extension 76 has a substantially triangular shape, and thus forms a front expansion surface 76.1 and a front expansion extension edge 76.2, which transition into the inclined surface 75.6 of the joint pin groove 75. The front extended surfaces 76.1 of the two jaws 72.1, 72.2 face each other at a distance. Here, they protrude with respect to the ridge edge 75.6 of the ridge 75.5.

[0045] The extension 70 is shaped so that its flange 71 can be introduced image 3 The hinge cup 50 shown in the flange groove 51. 2 of the flange cover 51 and is thereby covered. When installed, the two clamping jaws 72.1, 72.2 surround the hinge cup 52 on a part of the cup side wall 52.4. The two film hinges 73 enable the jaws 72.1, 72.2 to pivot away from the hinge cup 52 simply and smoothly.

[0046] In perspective representation, Figure 5 Show from Figure 4 The extension 70 has the arrangement of clamping jaws 72.1, 72.2. that exists after the injection molding process. Therefore, the same parts are labeled the same.

[0047] versus Figure 4 In comparison to the representation in the jaws 72.1, 72.2 pivot on the second membrane joint 73.2 of the membrane hinge 73 so that their undersides face each other. Except already in Figure 4 In addition to the components described in Figure 5 In the middle, two rear expansion extensions 78 can be seen, which are respectively arranged on the side of the clamping jaws 72.1, 72. 2 which faces away from the film hinge 73. The expansion extension 78 has a substantially triangular profile, thereby forming an obliquely extending rear expansion surface 78. 1. in Figure 4 In the orientation of the clamping jaws 72.1, 72.2 shown in, the rear expansion extension 78 with the formed rear expansion extension edge 78.2. faces the direction of the hinge cup 52. Here, the rear expansion surface 78.1 and the front expansion surface 76.1 are in the same plane.

[0048] Between the film hinge 73 and the rear expansion extension 78, a cam groove 77 is formed in the jaws 72.1, 72.2. The cam groove 77 includes a flat pressing surface 77. 1 on one side of the film hinge 73.

[0049] in Figure 5 In the orientation of the jaws 72.1, 72.2 shown in, the extension 70 has no undercut in the direction of the surface normal of the flange 71. Therefore, the expansion member 70 can be manufactured relatively cheaply in the plastic injection molding process by means of a relatively simple injection mold without a slider.

[0050] Image 6 The manipulator 40 for the lifting arrangement is shown. The manipulation member 40 is formed by a bracket 45 and two side portions 42 arranged at an angle thereto. The bracket 45 transitions to the side portion 42 through two transition sections 73 arranged obliquely. The edges between the bracket 45 and the transition section 73 and between the transition section 73 and the side portion 42 are reinforced by the protrusion 44. In the side part 42, there are arranged forced interlocking pieces 41 in the form of star-shaped perforations, which face each other along a rotation axis not shown. In order to establish the optimal peripheral position of the forced interlocking member 41, there is no tooth forming a star-shaped perforation in each case.

[0051] In perspective representation, Figure 7 The cam 60 in a lifting arrangement is shown. The cam 60 is formed as a single piece by a forced interlocking fitting 64, the connected shaft 63 and the cam disc 61. The shaft 63 is designed in a cylindrical shape, wherein the center axis of the shaft 63 forms the rotation axis of the cam 60. The outer diameter of the shaft 63 is designed so that the cam 60 can be rotatably installed in the cup side wall 52.4 of the hinge cup 52 by means of the shaft 63 image 3 The cam bearing 53 shown in. Here, the cam 60 is oriented so that the forced interlocking fitting 64 projects into the hinge cup 52, and the cam plate 61 projects into Figure 5 The extension 70 shown in the cam groove 77.

[0052] The cam plate 61 is eccentrically oriented with respect to the rotation axis of the cam 60. It has a flat portion 62 on its peripheral section furthest from the axis of rotation.

[0053] The forced interlocking fitting 64 is adapted to the star shape of the forced interlocking member 41 of the operating member 40 in terms of its outer contour, Image 6 The positive interlock is shown in, in which one tooth of the star profile is omitted again.

[0054] Figure 8 The perspective cross-section shows the stopper 11 of the furniture hinge 10 in the first position of the lifting arrangement in the assembled state. The jaws 72.1, 72.2 of the extension 70 are arranged in contact with the hinge cup 52. The cam 60 is mounted on the image 3 The cam bearing 53 of the hinge cup 50 is shown in. The operating member 40 and its forced interlocking member 41 are engaged in the forced interlocking fitting 64 of the cam 60 and thus form a forced interlocking connection with the cam 60. The manipulation member 40 is completely arranged in the hinge cup 52.

[0055] The cam plate 61 is introduced into the cam groove 77 of the clamping jaws 72.1, 72.2. Here, the cam grooves 77 are realized in the form of grooves in the jaws 72.1, 72.2, each flange groove having a pressing surface 77.1 oriented in the direction of the flange 71, having a side wall 77.2 and having a pressing surface 77.1 facing Bottom surface 77.3. The cam plate 61 contacts the pressing surface 77.1 of the cam groove 77 on its periphery.

[0056] The flange 71 of the extension 70 is introduced into the flange groove 51. 2 of the flange cover 51 and is covered thereby. The centering pin 71.1 points in a direction away from the flange cover 51.

[0057] The cam 60 forms a lifting arrangement with the cam bearing 53 of the hinge cup 50 and the operating member 40. In the first position of the lifting arrangement shown, the bracket 45 of the manipulator 40 is oriented towards the opening of the hinge cup 52. Due to the corresponding lack of teeth in the star-shaped contours of the positive locking element 41 of the operating element 40 and the positive locking mating element 64 of the cam 60, the cam 60 has a clear orientation relative to the operating element 40. In the first position of the lifting arrangement, the cam 60 is rotated so that the cam plate 61 points in the direction of the bottom surface 77.3. of the cam groove 77 with its flat area being furthest from the axis of rotation. In this position, the jaws 72.1, 72.2 and the rear expanded surface 78.1 of the rear expanded extension 78 are in contact with the cup chamfer 52 in the transition from the cup side wall 52.4 to the cup bottom 52.1. Therefore, it is not shown, Figure 4 The front expansion surface 76.1 of the front expansion extension 76 shown in FIG. 1 is in contact with the shell chamfer 56.1 in the transition from the cup side wall 52.4 in the area of ​​the joint housing shell 56 to the cup bottom 52.1 in this area.

[0058] When the furniture hinge 10 is produced, in the assembly of the stopper 11, the operating member 40 is first introduced into the hinge cup 52, and the cam 60 is inserted into the forced interlocking member 41 of the operating member 40 through the cam bearing 53. The manipulation member 40 enters the first position. Subsequently, the extension 70 is displaced above the hinge cup 52 so that the cam 60 is received in the cam groove 77 and the flange 71 is received in the flange groove 51. 2 of the flange cover 51. When the extension 70 is displaced to the hinge cup 52, the jaws 72.1, 72.2 move from Figure 5 Their manufacturing positions are pivoted to Figure 4 with Figure 8 In the installation position shown in.

[0059] In the first position of the lifting arrangement, the jaws 72.1, 72.2 are not expanded, so that the hinge cup 52 with the jaws 72.1, 72.2 can be introduced into the corresponding hole in the furniture door. Here, the correct radial orientation of the furniture hinge 10 is ensured by a centering pin 71.1, which is engaged in a corresponding centering hole provided on the furniture door.

[0060] Picture 9 A perspective section shows the stop 11 of the furniture hinge 10 in the second position of the lifting arrangement, which is Figure 8 Shown in.

[0061] versus Figure 8 Compared with the first position of the lifting arrangement shown in, the operating member 40 is adjusted so that the bracket 45 faces the cup bottom 52.1 of the hinge cup 52. Here, the bracket 45 is partially arranged in the groove 52.2. of the cup bottom 52.1. In this position of the operating member 40, the flat portion 62 of the cam plate 61 of the cam 60 forcibly interlocking with the operating member 40 points in the direction of the pressing surface 77.1 of the cam groove 77. The area of ​​the flat portion 62 of the cam plate 61 is farthest from the rotation axis of the cam 60. Due to the operating member 40 and thus the cam 60 from Picture 9 When the first position shown in FIG. 11 is rotated to the second position shown in FIG. 11, the jaws 72.1, 72.2 are therefore moved in a lifting motion in the direction toward the flange 71 and the flange cover 51. Due to the rear expansion surface 78.1 of the rear expansion extension 78 arranged obliquely with respect to the lifting movement, and due to Figure 4 As shown in the front expansion surface 76.1 of the front expansion extension 76, the clamping jaws 72.1, 72.2 are pressed by the cup chamfer 52.5 or the corresponding hinge cup 52 shell chamfer 56.1, so that due to the lifting movement, the clamping jaws 72.1, 72.2 are forced to perform Additional extended movement. The arrangement of the film hinge 73 and the film joints 73.1 and 73.2 realizes the overlapping lifting and expanding movements of the jaws 72.1 and 72.2.

[0062] Due to the expansion movement, the clamping jaws 72.1, 72.2 are pressed against the hole wall, and the furniture hinge 10 will be installed in the hole wall. Therefore, the stopper 11 is fastened in the hole. In this process, the anchoring rib 74.4 causes the connection between the jaws 72.1, 72.2 and the hole wall capable of withstanding stress.

[0063] Due to the lifting movement overlapping the expansion movement, the hinge cup 50 is pulled in the direction of the hole of the furniture, so that the flange cover 51 and the contact surface 52.3. on the edge of the hole are firmly pressed on the surface of the furniture. Together with the centering pin 71.1 inserted into the corresponding centering hole, the accurate positioning of the stopper 11 and therefore the furniture hinge 10 is achieved.

[0064] The design of the lifting arrangement with the cam 60 has the advantage that by appropriately selecting the cam plate 61, a relatively large lifting movement of the clamping jaws 72.1, 72.2 can be achieved. In this way, the jaws 72.1, 72.2 can be lifted to the point where the extended extension edges 76.2, 78.2 of the front and rear extension extensions 76, 78 contact the cup side wall 52.4, thereby achieving the maximum extension of the jaws 72.1, 72.2 . In addition, in the second position of the lifting arrangement, the expansion extensions 76, 78 no longer contact the cup chamfer 52.5 or the corresponding housing chamfer 56.1 through their expansion surfaces 76.1, 78.1 oriented obliquely, so that due to the external action on the jaws The radially inwardly directed forces on 72.1 and 72.2 will not produce a restoring force that pulls the jaws 72.1 and 72.2 back to their first position again. Compared with the smaller lifting movement, another advantage of the large lifting movement is that the expansion surfaces 76.1 and 76.2 can have a greater inclination under the same condition that the expansion of the jaws 72.1 and 72.2 can be achieved. Therefore, the pressure acting between the hinge cup 52 and the expansion extension portions 76, 78 can be kept small. Conversely, when the inclination of the expansion surfaces 76.1 and 76.2 is the same, a greater expansion movement can be obtained.

[0065] The second position of the lifting arrangement is stopped by the flat portion 62 of the cam disc 61 in contact with the pressing surface 77.1 of the jaws 72.1, 72.2. Due to the flat portion 62, accidental rotation of the cam 60 is prevented. An additional stop for the lifting arrangement in the second position is achieved by a groove 52.2 in the bottom of the cup 52.1, wherein the bracket 45 of the operating member is at least partially engaged with the bottom of the cup. Alternatively, it can be provided that the groove 52. 2 is realized as a perforation in which the bracket 45 is at least partially engaged. This makes it possible first to achieve the stop of the described lifting arrangement, and secondly, the support 45 can be accessed and manipulated via the perforation, for example for removing the furniture hinge 10. In another alternative embodiment, in addition to the groove 52.2, a perforation may be arranged in the cup bottom 52.2, through which the support 45 can be manipulated. Additional perforations can be provided in the groove 52.2 or in a lateral position.

[0066] Since the operating member 40 is completely arranged in the hinge cup 52, accidental opening of the clamping device can be excluded. In addition, due to the flange cover 51, a uniform surface of the hinge cup 50 that does not interfere with the operating member can be produced.

[0067] In order to remove the furniture hinge 10, the manipulation member 40 and thus the lifting arrangement is rotated back into its first position, so that the bracket 45 is again oriented in the direction of the opening of the hinge cup 52. The clamping jaws 72.1, 72.2 are pressed back onto the bottom surface 77.3 of the cam groove 77 by the pressure of the cam plate 61 in this process, and enter their first position, such as Figure 8 Shown in and release the clamp.

[0068] As reference Figure 5 As explained, the extension part 70 can be manufactured inexpensively as an injection molded part made of plastic. In this process, for different extensions 70, the position and size of the centering pin 71.1 can be specified differently. In this way, by selecting the matching extension 70, the furniture hinge 10 can be adapted to different hole arrangements existing in different furniture, without having to change the remaining parts of the furniture hinge 10.