Articulated ligament

Abstract

The invention relates to a hinge, particularly for glass doors, comprising two hinge parts (11, 12) pivotally connected to one another about a pivot axis (16) of an axle bolt (20), and comprising a locking device (24) acting between the two hinge parts (11, 12), which essentially consists of at least one locking element (25) associated with the first hinge part (11) and movably guided against the action of at least one spring element (27), and a locking body (30) associated with the second hinge part (12) having at least one locking surface (31) cooperating with the locking element (24) in a locking position, wherein the locking body (30) is arranged between two hinge webs (13, 14) formed on the second hinge part (12) coaxially to the pivot axis (16) and can be locked in various angular positions of its locking surface (31). In order to improve such a hinge,that it can be assembled and adjusted more easily than known constructions and that the adjustment found is subsequently reliably maintained, the invention proposes that the closing body (30) is formed by the axle bolt (20), which forms a bearing receptacle (21) for the first hinge part (11) between a first axle bolt end (18) and a second axle bolt end (19), on the circumference of which bearing receptacle the locking surface (31) is formed, wherein the first axle bolt end (18) is rotatably engaged in a first axle receptacle (17a) arranged on the first hinge web (13) of the second hinge part (12) and the second axle bolt end (19) is rotatably engaged in a second axle receptacle (17b) arranged on the second hinge web (14) of the second hinge part (12), wherein at least one of the axle bolt ends (18, 19) is provided with a threaded bore (33) arranged transversely to the pivot axis (16) and a in this for clamping the axle bolt end (18,19) is provided with a clamping screw (34) screwed into the associated axle receptacle (17), which is adjustable from an outer side of the second hinge part (12) in the threaded bore (33). With the invention, the adjustment and locking of the locking body relative to the second hinge part in various angular positions can be achieved very simply and quickly by adjusting the clamping screw, which is received transversely to the pivot axis in the threaded bore in the axle bolt end, from the outer side of the hinge part in such a way that the axle bolt end clamps itself inside the axle receptacle receiving it, thus preventing the initially existing rotational mobility.

Description

[0001] The invention relates to a hinge, in particular for glass doors, with two hinge parts which are connected to one another in an articulated manner about a pivot axis of an axle bolt, and with a locking device which acts between the two hinge parts and which essentially consists of at least one locking element which is assigned to the first hinge part and is guided so as to be movable against the action of at least one spring element, and a closing body which is assigned to the second hinge part and has at least one locking surface which interacts with the locking element in a locking position, wherein the closing body is arranged between two hinge webs formed on the second hinge part coaxially to the pivot axis and can be locked in various angular positions of its locking surface.

[0002] Such hinges, which can be used, for example, for furniture doors or a glass door of a shower enclosure, are known from DE 10 2005 025 278 B3 and EP 3 741 944 A1. With the help of the adjustable locking device, the closed position of the door hinged to the hinge can be adjusted by adjusting the locking surface of the locking body, which is arranged coaxially to the pivot axis between the two hinge webs of the second hinge part, so that the door assumes the desired angular position when the locking element is pressed against the locking surface by the spring element.

[0003] To ensure that the closed position of the door or hinge, once found, does not change unintentionally, it is necessary to reliably lock the locking body in its correct angular position on the second hinge part. In the prior art, this is achieved by the two hinge webs on the second hinge part each being divided in a plane parallel to the pivot axis and comprising a first clamping jaw fixed to the second hinge part and a second clamping jaw formed on a detachable clamping means part, which can be adjusted against each other by means of a screw connection and, if necessary, a locking mechanism. The clamping jaws clamp end sections of the locking body between them, thus securing its position relative to the second hinge part and thus the desired angular position of the locking recess.

[0004] The problem with existing hinged hinges is the assembly of the individual components to create the finished hinged hinge, particularly the installation of the locking element and its adjustment to the correct angular position. This is because installation and, in particular, the adjustment of the closed position (zero position) can only be achieved if the clamping jaws, by sufficiently opening the screw connection, release the intermediate end sections of the locking element sufficiently so that the locking element can be adjusted to the desired position relative to the second hinge part. Precise adjustment is very difficult to achieve, especially if the adjustment process is to be carried out with the hinged hinge assembled and the door attached.The weight of the door means that the locking body does not maintain its coaxial positioning to the pivot axis during the adjustment process, but is loaded with a relatively large force transverse to the direction of the pivot axis during the assembly and / or adjustment process, which makes precise work difficult.

[0005] The object of the invention is to avoid these disadvantages and to design a hinge of the generic type in such a way that it can be assembled and adjusted more easily than known designs and that the adjustment found is then reliably maintained.

[0006] This object is achieved with the invention in that the closing body is formed by the axle bolt, which forms a bearing receptacle for the first hinge part between a first axle bolt end and a second axle bolt end, on the circumference of which bearing receptacle the locking surface is formed, wherein the first axle bolt end is rotatably adjustable in a first axle receptacle arranged on the first hinge web of the second hinge part and the second axle bolt end is rotatably adjustable in a second axle receptacle arranged on the second hinge web of the second hinge part, wherein at least one of the axle bolt ends is provided with a threaded bore arranged transversely to the pivot axis and a clamping screw screwed into this for clamping the axle bolt end in the associated axle receptacle, which clamping screw is adjustable from an outer side of the second hinge part in the threaded bore.

[0007] With the invention, the adjustment and locking of the locking body relative to the second hinge part in various angular positions can be achieved very easily and quickly by adjusting the clamping screw, which is located transversely to the pivot axis in the threaded hole in the axle pin end, from the outside of the hinge part in such a way that the axle pin end clamps internally in the axle receptacle that receives it, thus preventing the initially existing rotational mobility. As long as the clamping function is not used by actuating the clamping screw, the axle pin forming the locking body can rotate with its axle pin ends essentially freely in the axle receptacles.When the locking element engages its associated locking surface in the locked position, thus preventing (force-free) adjustment of the locking body relative to the first hinge part, the second hinge part can be adjusted to the desired position relative to the locking body (and thus also relative to the first hinge part). When the clamping screw is then screwed into the threaded hole from the outside of the second hinge part, this creates a radially directed clamping force acting between the wall of the axle mount and the end of the axle bolt, preventing relative rotation between the second hinge part and the locking body and thus locking the previously adjusted position of the locking surface relative to the second hinge part.The inventive design not only allows for easy adjustment of the desired position of the locking body, but the screw connection perpendicular to the pivot axis also enables a high clamping force to be achieved between the axle pin end and the axle mount that accommodates it, thus largely eliminating any subsequent unintentional adjustment of the position once achieved. Nevertheless, readjustment is possible at any time without difficulty thanks to the easy accessibility of the clamping screw from the outside of the hinge part, and in particular without the laborious disassembly of the (door) element held by the hinge.

[0008] In a particularly advantageous development of the invention, the at least one axle bolt end is slotted over at least part of its length parallel to the pivot axis and forms two clamping jaws that can be spread radially outwards relative to one another by means of the clamping screw. The arrangement can also be such that the two clamping jaws are of different thicknesses, i.e. one of the two clamping jaws has a stronger cross-section than the other of the two clamping jaws. Since the clamping jaws can be adapted on the outside to the circular cylindrical contour of the axle mount, the preferred embodiment allows high spreading forces caused by the clamping screw between the two clamping jaws to be achieved with comparatively low surface pressure between the clamped parts.There is therefore no need to worry that when the end of the axle bolt is jammed in the associated axle holder, there will be localized damage to the cylindrical wall in an area where the clamping screw comes into contact with the wall with its end. In this preferred embodiment, the arrangement can be such that the threaded hole and the clamping screw that can be screwed into it are provided in only one of the two clamping jaws, preferably in the larger clamping jaw if the clamping jaws are asymmetrical (i.e. have different cross-sections). However, it is also possible to provide threaded holes with different threads in the two clamping jaws and to equip the clamping screw accordingly with one end with a left-hand thread and one end with a right-hand thread in order to cause the clamping jaws to spread apart or contract relative to one another when actuated.However, the design with different threads makes the assembly of the construction more difficult and requires special design measures.

[0009] In an advantageous embodiment, the clamping screw can be a grub screw that can be fully screwed into the threaded hole, preferably with a continuous thread along its length. Such a grub screw, without a screw head that protrudes radially beyond the diameter of the thread, can be fully screwed into the threaded hole and thus does not protrude from the threaded hole laterally. This would not only represent a visual disadvantage in the design of the hinge, but could also negatively affect the relative mobility between the hinge part and the locking body.

[0010] In an advantageous development of the invention, the clamping screw can have a front clamping tip whose diameter is smaller than the effective thread diameter of the clamping screw or the threaded hole. In the embodiment with two clamping jaws that can be spread open relative to one another, the clamping tip can be adjusted against the inside of one clamping jaw (particularly the one with the smaller cross-section) or directly against the wall of the axle mount. It is possible that - in the embodiment with two clamping jaws - the front clamping tip of the screw engages in a centering guide that is provided on one of the two clamping jaws on the inside facing the other clamping jaw having the threaded hole.

[0011] To ensure particularly high reliability of the locking element's clamping relative to the respective hinge part, both axle pin ends are provided with threaded holes arranged transversely to the pivot axis and with clamping screws screwed into these holes to clamp the respective axle pin end in the corresponding axle mount. The locking action thus occurs on both sides of the locking surface located between them, thus avoiding torsional loading of the locking element when the hinge is opened and the locking element is moved from its locking position on the locking surface.

[0012] The second hinge part is preferably provided with at least one access opening to the axle bolt end provided with the threaded hole and the clamping screw received therein. Through the access opening, the fitter can easily reach the clamping screw with a suitable tool, e.g. an external hexagon or a hexalobular socket wrench. The access opening is preferably designed as an elongated hole aligned transversely to the pivot axis, so that the accessibility of the tool holder formed on the clamping screw, e.g. a hexagon socket or hexalobular socket, is easily guaranteed in various angular positions of the locking body. The access opening can advantageously be closable or closed by means of a cover so that it is only visible when the cover is removed or opened for adjustment work.

[0013] The locking surface on the locking body is preferably aligned at least substantially parallel to the axis of rotation of the clamping screw(s).

[0014] Further features and advantages of the invention will become apparent from the following description and the drawing, in which a preferred embodiment of the invention is explained in more detail using an example. It shows: Fig. 1 a first embodiment of a hinge according to the invention in a perspective view; Fig. 2 the ligament after Fig. 1 in a perspective, exploded view of its individual components; Fig. 3 the joint band according to Fig. 1 in a side view; Fig. 4 the subject of Fig. 3 in a section along the line IV -IV; Fig. 5 the first embodiment of the hinge according to the Fig. 1 bis 4 used locking body in a side view ( Fig.5A ), front view ( Fig.5B ) and on average ( Fig.5C ) along the line AA in Fig.5A ; Fig. 6 a second embodiment of a hinge according to the invention in a Fig. 4 corresponding sectional view; and Fig. 7 the second embodiment of the hinge according to Fig. 6 used closing body in a Fig.5 corresponding representation.

[0015] With the hinge according to the invention, designated overall by 10, a glass shower door can be pivotally mounted on a wall according to the preferred embodiments shown. Of course, the invention is not limited to this application.

[0016] As is known, the hinge 10 essentially consists of a first hinge part 11, which can be screwed to a wall by means of a perforated mounting plate, and a second hinge part 12, which is pivotally connected to the first hinge part 11. For this purpose, the second hinge part 12 is provided with a first hinge web 13 and a second hinge web 14, with associated axle supports 15, in which axle receptacles 17 are drilled coaxially to the pivot axis 16. The axle receptacles 17 each accommodate a first and second axle pin end 18 and 19 of an axle pin 20 extending between the two hinge webs 13, 14.In its central region, located between the two axle pin ends 18, 19, this forms a bearing receptacle 21 for a support bracket 22 formed on the first band part 11, which is provided with a through-bore 23 adapted to the diameter of the axle pin 20, in which the axle pin 20 with its bearing receptacle 21 is rotatably received about the pivot axis 16.

[0017] The hinge 10 is equipped with a locking device, designated overall by 24, which has a locking element 25 assigned to the first hinge part 11, which is received in a transverse bore 26 arranged transversely to the pivot axis 16 in the support bracket 22. The locking element 25 is movable in the support bracket 22 transversely to the pivot axis 16. It is preloaded by a compression spring 27, which engages in a spring receptacle 28 open at the rear in the locking element 25 and presses there against the rear of the locking element 25 facing away from the pivot axis 16. With its rear end protruding from the spring receptacle 28, the spring 27 is supported on a closure cap 29, which closes the rear of the transverse bore 26 in the support bracket 22 of the first hinge part 11.

[0018] The locking device 24 also includes the locking body 30 of the axle bolt 20, which has a flat locking surface 31 milled around the circumference in the area of ​​the bearing support 21 for the support bracket 22, which interacts with the front, likewise flat, end face 32 of the locking element 25. In the locked state, the locking surface 31 and the end face 32 of the locking element 25 lie flat against one another under the action of the spring force of the compression spring 27. In order to bring the locking device 24 out of the locking state, the locking body 30 formed by the axle bolt 20 must be rotated about the pivot axis relative to the locking element 25 and thus to the first hinge part 11, wherein one or the other of the two axially parallel edges, at which the flat locking surface 31 borders on the otherwise circular-cylindrical circumferential surface of the axle bolt 20 in the region of the bearing receptacle 21, slides along the end face 32 of the locking element 25 and presses it into the transverse bore against the spring.

[0019] In order to firmly connect the pivot pin 20 to the second hinge part 12 so that the locking body 30 rotates when the second hinge part 12 pivots relative to the first hinge part 11, thereby releasing the locking action, and in order to also enable the angle of the second hinge part 12 to be adjusted relative to the first hinge part 11 in the locked state, the two pivot pin ends 18, 19, which initially engage in the pivot receptacles 17 formed on the hinge webs 14 in a rotationally adjustable manner during assembly of the hinge, are provided with threaded bores 33 arranged transversely to the pivot axis 16. A clamping screw 34 is screwed into each of the threaded bores to clamp the respective pivot pin end 18, 19 in such a way that it can be adjusted in the threaded bore 33 from an outer side of the second hinge part 12.In a known manner, the second hinge part 12 is designed to be divided in a plane of the glass door to be supported (not shown) and has two clamping plates, of which the first clamping plate 12a has the axle supports 15 with the axle receptacles 17 arranged therein for the axle bolt ends 18, 19. The second of the two clamping plates 12b can be clamped to the first clamping plate 12a with a total of four countersunk screws 35 in the exemplary embodiment, wherein the glass shower door (not shown) is then clamped and securely held between the two clamping plates 12a, 12b of the second hinge part 12 with the interposition of several elastic compensating plates 36, as is known to those skilled in the art.

[0020] In order to provide access to the clamping screws from the outside of the second hinge part 12, elongated holes 37b and 37a are arranged on the second clamping plate 12b thereof, as well as on the axle supports 14 on the first clamping plate 12a, such that the clamping screws screwed into the threaded holes 33 can be reached through these holes with a suitable tool and can be screwed in and out. In the exemplary embodiments, the clamping screws 34 are grub screws that can be screwed fully into the respective threaded hole 33 and have a hexagon socket at the rear head end, which can be reached from the outside through the elongated holes. By inserting a suitable hexagon socket wrench through the elongated holes 37, the clamping screws can be screwed in and out of their threaded holes.

[0021] In the first exemplary embodiment, the axle bolt 20 is designed with asymmetrical slots at its two bolt ends 18, 19 parallel to the pivot axis 16 and forms two clamping jaws 38, 39 with different cross-sections that can be spread radially outwards relative to one another by means of the clamping screw 34. The threaded bore 33 is only located in the first of the two clamping jaws 38, 39, which has a significantly larger cross-section than the second clamping jaw 39. The clamping screw 34 has a front clamping tip 40, the diameter of which is smaller than the effective thread diameter of the clamping screw 34 or the threaded bore 33. The clamping screw engages with the clamping tip 40 in a centering recess 41 provided on the inside of the second clamping jaw 39, so that when the clamping screw 34 is screwed into the threaded bore 33 and the spreading force thereby caused between the two clamping jaws, it is guided and cannot run sideways.The clamping jaws 38, 39, which are spread radially outward relative to one another, press firmly against the cylindrical bores in the axle receptacles 17 and thus clamp the axle bolt ends 18, 19 in a rotationally fixed manner therein, so that the previously set angular position between the locking body 30 and the second hinge part 12 is secured by screwing in the clamping screws 34. A cover 42 that can be locked to the clamping plate can be attached to the outside of the second clamping plate 12b, so that the four countersunk screws 35 and the elongated holes 37 are then no longer visible.

[0022] In the Fig. 6 and 7In the embodiment shown, the axle bolt ends 18, 19 are not slotted and thus not divided into two clamping jaws each as in the first embodiment, but the threaded bore 33 penetrates the one-piece axle bolt end 18, 19 transversely across its entire diameter, so that the screwed-in clamping screw, with its flattened front end here, comes into contact directly with the inner wall 43 of the respective axle receptacle 17 when the clamping screw 34 is screwed into the threaded bore by means of the appropriate tool attached to its rear screw head through the elongated hole 37. This also radially clamps the axle bolt end 18, 19 in the associated axle receptacle and thereby locks the locking body 30 in its angular position relative to the second hinge part 12.Access to the clamping screws in various angular positions is ensured by the elongated holes, because the tool holder at the rear end of the clamping screws can be easily reached from various positions using the appropriate socket wrench.

Claims

1. Hinge, in particular for glass doors, with two hinge parts (11, 12) which are connected to one another in an articulated manner about a pivot axis (16) of an axle bolt (20), and with a locking device (24) acting between the two hinge parts (11, 12), which essentially consists of at least one locking element (25) assigned to the first hinge part (11) and guided so as to be movable against the action of at least one spring element (27), and a closing body (30) assigned to the second hinge part (12) with at least one locking surface (31) cooperating with the locking element (24) in a locking position, wherein the closing body (30) is arranged between two hinge webs (13, 14) formed on the second hinge part (12) coaxially to the pivot axis (16) and can be locked in various angular positions of its locking surface (31), characterized in thatthe closing body (30) is formed by the axle bolt (20), which forms a bearing receptacle (21) for the first hinge part (11) between a first axle bolt end (18) and a second axle bolt end (19), on the circumference of which bearing receptacle the locking surface (31) is formed, wherein the first axle bolt end (18) is rotatably engaged in a first axle receptacle (17a) arranged on the first hinge web (13) of the second hinge part (12) and the second axle bolt end (19) is rotatably engaged in a second axle receptacle (17b) arranged on the second hinge web (14) of the second hinge part (12), wherein at least one of the axle bolt ends (18, 19) is provided with a threaded bore (33) arranged transversely to the pivot axis (16) and a recess in said bore for clamping the axle bolt end (18, 19) in the associated axle receptacle (17) screwed-in clamping screw (34) which is adjustable from an outer side of the second band part (12) in the threaded bore (33).

2. Joint band according to claim 1, characterized in thatthe at least one axle bolt end (18, 19) is slotted over at least part of its length parallel to the pivot axis (16) and forms two clamping jaws (38, 39) which can be spread radially outwards relative to one another by means of the clamping screw (34).

3. Joint band according to claim 2, characterized in that the threaded bore (33) and the clamping screw (34) that can be screwed into it are only provided in one of the two clamping jaws (38).

4. Joint band according to one of claims 1 to 3, characterized in that the clamping screw (34) is a grub screw that can be screwed completely into the threaded bore and preferably has a continuous thread over its length.

5. Joint band according to one of claims 1 to 4, characterized in that the clamping screw (34) has a front clamping tip (40) whose diameter is smaller than the effective thread diameter of the clamping screw (34) or the threaded bore (33).

6. Joint band according to one of claims 1 to 5, characterized in thatboth axle bolt ends (18, 19) are provided with threaded bores (33) arranged transversely to the pivot axis (16) and with clamping screws (34) screwed into these for clamping the respective axle bolt end (18, 19) in the associated axle holder (17).

7. Joint band according to one of claims 1 to 6, characterized in that the second band part (12) is provided with at least one access opening (37) to the axle bolt end (18, 19) provided with the threaded bore (33) and the clamping screw (34) received therein.

8. Joint band according to claim 7, characterized in that the access opening (37) is designed as an elongated hole aligned transversely to the pivot axis (16).

9. Joint band according to claim 7 or 8, characterized in that the access opening (37) can be closed or is closed by means of a cover (42).

10. Joint band according to one of claims 1 to 9, characterized in thatthe locking surface (31) is aligned substantially parallel to the axis of rotation of the clamping screw(s) (34).

Images