EP0052803A2 - Hinge arm with mounting plate - Google Patents

Abstract

A hinge arm with mounting plate is provided on both sides with mutually parallel guide grooves in which sliding webs angled inwards from the legs of the pushed-on U-shaped hinge arm to the stops formed by the end walls delimiting the grooves can be advanced. The hinge arm can be locked in its open position and released again. In order to ensure a secure connection and simple assembly, in a recess (9) connecting the guide grooves (5, 6) and extending transversely to these are two plates (1o, 11) overlapping one another in the central region of the fastening plate (1) are provided approximately diagonally from their inner corner regions which extend in the direction of insertion of the hinge arm (24) to their rear outer corner regions and which intersect elongated holes (16, 17). The fastening plate (1) is provided in the center plane between the guide grooves (5, 6) with a bore (12) running parallel to the latter, in which a bolt (13) protruding from the front is guided so as to be longitudinally displaceable. carries a radial pin (14) which penetrates the bottom of the recess (9) in an elongated hole (15) parallel to the bore (12) and engages in the elongated holes (16, 17) of the plates (1o, 11) (12) is provided at its rear end in the insertion direction of the hinge arm (24) with an abutment (2o) for the compression spring (19), which is clamped between the latter and the bolt (13) under tension Pin (14) abutting the bottom of the elongated hole (15) holds the plates (10, 11) in a position which at least partially penetrates the guide grooves (5, 6) and the length of the guide grooves (5, 6) corresponds to the front of the plate in the direction of insertion (33) up to the forehead bounding them nden (8) the length of the sliding webs (3o, 31).

Description

The invention relates to a hinge arm with a mounting plate, which is provided on both sides with mutually parallel guide grooves, in which from the legs of the deferred U-shaped hinge arm inwardly angled sliding webs are displaceable up to the stops formed by the end walls defining the grooves, and with a Hinge arm in its deferred position locking and releasable device.

Snap-in connections for fastening hinge arms to fastening plates which have already been preassembled, for example, on supporting wall abutment parts are in different embodiments already known. They serve the need to be able to assemble furniture parts provided with hinge joints quickly and easily. Usually, it is necessary to screw the hinge arms onto the associated fastening plates, which is simple work, but still requires a cumulative expenditure of time, for example, in the case of doors provided with several hinge joints. It should also be taken into account that usually the hinge arms must be screwed on while holding the door at the same time, which makes the work more difficult for the fitter. Hinge arms locked in place with snap-in connections to the mounting plates help here.

A hinge arm with mounting plate of the type specified is known from the earlier patent application P 30 26 796.0-23.

, The object of the invention is to provide an easy to assemble and secure attachment of a hinge arm to a mounting plate ensuring locking connection.

According to the invention, this object is achieved in a hinge arm with a mounting plate of the type specified in the introduction in that in a recess connecting the guide grooves and extending transversely to these two overlapping plates in the central region of the mounting plate, which are approximately diagonal from the front in the insertion direction of the hinge arm are inner corner regions to the rear outer _e ckbe- rich extending and mutually crossing elongated holes are provided, out that the mounting plate is provided in the center plane between the guide grooves with a direction parallel to this bore in which a front outstanding from this bolt guided longitudinally displaceably is that the bolt carries a radial pin which passes through the bottom of the recess in an elongated hole parallel to the bore and engages in the elongated holes of the plates, that the bore is provided at its rear end in the insertion direction with an abutment for a compression spring which is between this and the bolt is clamped under pretension, and that the pin striking the front end of the elongated hole located in the bottom holds the plates in an at least partially penetrating position through the guide grooves and the length of the guide grooves from the front side of the insert in the direction of insertion to the limits thereof End walls corresponds to the length of the sliding webs. To assemble the hinge arms and to release them from the mounting plates, it is only necessary to press the bolt so far into the hole that the pin thereby displaced in the elongated holes pulls the overlapping plates back from the area of the guide grooves, so that the sliding webs in the Guide grooves can drive over the area of the recess.

According to an inventive development, it is provided that the bolt can be locked in the bore by a ballpoint pen mechanism in two end positions of different heights and can be transferred from one end position to the other by pressing in and then relieving pressure, and that in the lower end position the pin is so far in the slot of the bottom is pushed back so that the plates are withdrawn from the guide grooves. To mount the hinge arms only the bolts need to be pressed in so that the locks in the mounting plate are released. The hinge arms can then be pushed onto the mounting plates without further manipulation being necessary to unlock them. This makes work easier, in particular if, for example, several hinge arms attached to a door have to be pushed onto the associated mounting plates at the same time.

After pushing on the hinge arms, the locking plates are extended by pressing the bolts again. To remove the hinge arms from the mounting plates, it is only necessary to release the locks by pressing the bolts.

The edge areas of the plates which engage in the extended positions in the guide grooves are expediently bent in opposite directions in such a way that they lie in the plane of the guide grooves.

In a further embodiment of the invention, the front edges of the plates which lock the sliding webs or the rear edges of the sliding webs are chamfered. As a result, the plates which have not yet been fully extended into their end position can be supported on the rear edges of the sliding webs in such a way that they are pressed against the end walls of the guide grooves and clamped without play.

In a further embodiment of the invention it is provided that. In the hinge arm, a setting screw serving for joint adjustment is screwed in, which is provided with an annular groove, is guided in the slot-shaped guide of the fastening plate therein and overlaps the upper and lower edges of the guide with the flanks of the annular groove. In order to be able to simply insert the groove in the adjusting screw into the slot guide, it is expediently open on one side.

In a further embodiment of the invention, the distance of the sliding webs from the adjusting screw is greater than the distance of the recess from the open end of the slot guide and the guide grooves are open towards the top in the region of the recess. With this configuration, it is possible for plates to be drawn in by the ballpoint pen mechanism, the hinge arm simply by connecting it to the mounting plate by inserting its sliding webs into the guide grooves from above in the area of the recess and then moving the hinge arm into its end position, in which the locking is then carried out by actuating the bolt.

The slide bars can be guided with play in the guide grooves, the end regions of the guide slots, in which the slide bars are locked, being inclined upwards or downwards to compensate for play.

• Fig. 1 einen Längsschnitt durch die Befestigungsplatte,
• Fig. 2 eine Draufsicht auf die Befestigungsplatte nach Fig. 1, teilweise im Schnitt,
• Fig. 3 eine Rückansicht der Befestigungsplatte nach Fig. 1,
• Fig. 4 eine Vorderansicht des Scharnierarms,
• Fig. 5 einen Längsschnitt durch den Scharnierarm nch Fig. 4,
• Fig. 6 den axial verschiebbaren Bolzen mit radialem Stift und von diesem verschiebbaren Platten im auseinandergezogenen Zustand und in.perspektivischer Darstellung,
• Fig. 7 eine Draufsicht auf den Scharnierarm während des Aufschiebens auf die Befestigungsplatte, teilweise im Schnitt,
• Fig. 8 eine der Fig. 7 entsprechende Darstellung im verrasteten Zustand von Scharnierarm und Befestigungsplatte,
• Fig. 9 einen Schnitt entlang der Linie IX - IX der Fig. 10 durch den mit der Bohrung für den Bolzen versehenen Teil der Befestigungsplatte in Höhe der mit den Führungsrippen der Druckkugelschreibermechanik versehenen Wandung,
• Fig. 10 einen Längsschnitt durch die Bohrung längs der Linie X - X in Fig. 9,
• Fig. 11 eine Seitenansicht des Druckstücks der Druckkugelschreibermechanik,
• Fig. 12 eine Unteransicht des Bolzens,
• Fig. 13 eine Draufsicht auf das Druckstück nach Fig. 11,
• Fig. 14 eine Seitenansicht des Bolzens nach Fig. 12, und
• Fig. 16 bis 18. Abwickelungen der mit Rippen versehenen Wandung der Bohrung sowie- der seitlichen Profile des Druckstücks und des Bolzens in der unteren und in der oberen Endstellung des Bolzens.

An embodiment of the invention is explained below with reference to the drawing. In this shows

• 1 is a longitudinal section through the mounting plate,
• 2 is a plan view of the mounting plate of FIG. 1, partially in section,
• 3 is a rear view of the mounting plate of FIG. 1,
• 4 is a front view of the hinge arm,
• 5 shows a longitudinal section through the hinge arm according to FIG. 4,
• 6 shows the axially displaceable bolt with a radial pin and plates displaceable therefrom in the exploded state and in a perspective view,
• 7 is a plan view of the hinge arm while being pushed onto the fastening plate, partly in section,
• 8 shows a representation corresponding to FIG. 7 in the locked state of the hinge arm and fastening plate,
• 9 shows a section along the line IX-IX of FIG. 10 through the part of the fastening plate provided with the hole for the bolt at the level of the wall provided with the guide ribs of the ballpoint pen mechanism,
• 10 shows a longitudinal section through the bore along the line X - X in FIG. 9,
• 11 is a side view of the pressure piece of the ballpoint pen mechanism,
• 12 is a bottom view of the bolt,
• 13 is a plan view of the pressure piece of FIG. 11,
• 14 is a side view of the bolt of FIG. 12, and
• Fig. 16 to 18. Developments of the ribbed wall of the bore and the lateral profiles of the pressure piece and the bolt in the lower and in the upper end position of the bolt.

The fastening plate 1 has an essentially cuboid shape and has lateral fastening flanges 2, 3 provided with bores 4 for fastening screws. The fastening plate is provided with lateral guide grooves 5, 6, which are formed between a recess in the fastening plate 1 and a screwed-on cover plate 7. The guide grooves 5, 6 are delimited by front end walls 8 forming stops.

Between the cover plate 7 and the main body of the fastening plate 1, a transverse recess 9, which opens into the guide grooves 5, 6, is provided, in which plates 10, 11, which partially overlap one another, are displaceably guided.

The mounting plate is provided with a central, axially extending bore 12 in which the bolt 13 is guided in a longitudinally displaceable manner. The bolt 13 carries a pin 14 which projects radially therefrom and which penetrates the bottom of the recess 9 in an elongated hole 15. The transversely displaceable plates 10, 11 are provided in the manner shown in FIG. 2 with diagonally extending and intersecting elongated holes 16, 17. The pin 14 also passes through these elongated holes in the manner shown in FIG. 1, so that the overlapping plates 10, 11 are pushed together and pulled apart by moving the pin 14 in the elongated hole 15.

The bolt 13 has at its lower end a profiling described in more detail below, which belongs to a ballpoint pen mechanism. This profiling interacts with the bevelled ribs of a pressure piece 18, which is loaded in the direction of the bolt 13 by a pressure spring ^: 19. The compression spring 19 is between a screw closure 20 which closes the bore 12 and forms an abutment and the pressure piece 18 clamped. The inner wall of the bore 12 is also provided with a rib-shaped filter which, together with the profiling of the bolt 13 and the pressure piece 18, forms the ballpoint pen mechanism described in more detail below.

Due to the ballpoint pen mechanism, the bolt 13 has two end positions in which it projects out of the bore 12 at different heights. In the position shown in FIGS. 1 and 2, the bolt 13 is in its higher end position, in which it holds the plates 10, 11 in their position advanced into the guide grooves 5, 6. 7, due to the ballpoint pen mechanism lower end position of the bolt 13, the plates 10, 11 are withdrawn from the area of the guide grooves.

The fastening plate 1 is provided in the region of the top of its rear end with a recess 21 with a T-shaped cross section, which is open towards the end of the fastening plate and rounded at its front, closed end. This recess 21 forms a guide for the adjusting screw 23 which is provided with an annular groove 22 and which is screwed into the hinge arm 24. The edge strips 25 partially covering the recess 21, the inner sides of which delimit guide grooves with the bottom of the recess, are formed by the screwed-on plate 7 and bevelled at the end in the manner shown in FIG. 1 in order to insert the T-shaped end piece 26 of the adjusting screw 23 to facilitate.

The hinge arm 24, as can be seen in particular from FIG. 4, has a U-shaped cross section. It consists of lateral legs 27, 28 which are connected to one another by the central web part 29. In the front area of the hinge arm 24 there are sliding webs 30, 31 of the side legs 27, 28 . forming edges angled inwards. A bore 32 with a collar is punched into the web part 29 and a nut thread for the fastening screw 23 is cut into it.

The length of the sliding webs 30, 31 corresponds to the length of the front parts of the guide grooves 5, 6 between the end walls 8 and the front edges 33 of the plates 10, 11.

The front edges 34, 35 of the plates 10, 11 are bent in opposite directions in the manner shown in FIG. 6, so that they lie in the plane of the guide grooves 5, 6 despite the overlap of the plates 10, 11.

The hinge arm 24 is pushed onto the mounting plate 1 in the manner shown in FIG. 7. The sliding webs 30, 31 can pass over the end edges of the plates 10, 11 without hindrance. because these are held in their retracted position due to the ballpoint pen mechanism. As soon as the hinge arm 24 is pushed into its end position, in which the sliding webs 30, 31 abut against the end walls 8 of the guide grooves 5, 6, the bolt 13 is actuated by pressure, so that it springs into its higher end position due to the ballpoint pen mechanism, in which he extends the plates 10, 11 in such a way that their edge regions 34, 35 block the guide grooves 5, 6 and lock the sliding webs. 30, 31 in the manner shown in FIG. 8.

The sliding webs 30, 31 are guided in the guide grooves 5, 6 with a slight play. Since the front area of the guide grooves is angled slightly upward in the manner shown in FIG. 1, the sliding webs 30, 31 are tilted and slightly deformed in this area so that they are held without play in the grooves in the locked position.

For releasing the position shown in Fig. 8 locked position of _'hinge arm and mounting plate of the bolt be depressed 13 so that it is arrested due to the ballpoint pen mechanism in its in FIG. 7 apparent lower end position, the hinge 24 can be easily peeled off in which.

The ballpoint pen mechanism is explained in more detail below with reference to FIGS. 9 to 17.

The wall of the bore 12 is provided in the manner shown in FIGS. 9 and 10 at the same distance from one another with six axially extending guide ribs 36. The guide ribs 36 have a crown-shaped pixel, the end faces 37 of the ribs, which are beveled in the same direction, point in the direction of the abutment 20 of the compression spring 19. The ribs 36 alternately define grooves 38 and 39. The grooves 38 have a greater depth over their entire length, the groove bases of which correspond to the radius of the bore 12. Adjacent to the grooves 38, the diameter of the bore decreases towards the outside. The radius of this smaller diameter corresponds to the radius of the circle touching the tops of the ribs 36.

The grooves 39 are stepped in depth. They have an inlet area 39 ', the depth of which corresponds to the depth of the grooves 38. The area 39 'is adjoined by an area 39 "with a smaller depth.

The one in the Pig. 12 and 14 shown bolt 13 has a central, non-continuous bore 40, the edge with a crown-shaped profile is provided. The profiling consists of six guide pieces 41, the diameter of which projects beyond the pin 13, the width of which corresponds to the width of the grooves 38, 39. The guide pieces 41 have stepped and stops 42 forming rear sides. The guide pieces 41 are dimensioned such that they can also pass through the area of the grooves 39 with a smaller depth until they abut with their rear sides 42 on the boundary walls 43 of the grooves 38, 39.

The pressure piece 18 shown in FIGS. 11 and 13 is cylindrical and has such a large diameter that it can be inserted into the bore 40 of the bolt 13 without, however, being supported on the bottom of the bore. The pressure piece 18 has three guide pieces 44 protruding radially and externally evenly over its circumference. The guide pieces 44 have beveled end faces 45 which are beveled in opposite directions to the end faces 37 of the guide ribs 36. The guide pieces 44 are of such a height that they can only slide over the bottom of the grooves 38 and in the grooves 39 into the lower region 39 '. If the guide pieces 44 are thus in the grooves 39, they abut against the step formed between the regions 39 'and 39 ".

The edge of the bore of the .Bolzens 13 is chamfered in a zigzag line, two opposing inclined surfaces 46, 47 each collide on the center lines of the guide pieces 41 and form roof-like chamfered end faces. The helix angle of the chamfered surfaces 46, 47 corresponds to that of the chamfer surfaces 37, 45.

The function of the ballpoint pen mechanism will now be explained in more detail with reference to FIGS. 15 to 17. In these figures, the development is by lines not specially marked the guide ribs 36 of the bore 12 shown. The zigzag line provided with short lines represents the development of the crown-shaped edge of the bolt 13. The cut guide pieces 44 of the pressure piece 18 are shown hatched.

Fig. 15 shows the ballpoint pen mechanism in the upper end position of the pin 13. In this, the spring-loaded pressure piece 18 is supported with its guide pieces 44 on the right inclined surfaces 46 of the edge of the pin 13 and presses this with the rear sides 42 of its guide pieces 41 against the stops 43.

If pressure is exerted on the bolt 13 in the axial direction in the manner shown in FIG. 16, this pushes the pressure piece 18 in the grooves 38 back against the force of the spring 19 until the front edges of the guide pieces 44 on the front edges of the Ribs 36 have passed. As soon as the guide pieces 44 have come free from the grooves 38 in this way, the inclined surfaces 45 slide on the inclined surfaces 46 of the guide pieces 41 of the bolt 13 until the front edges. of the guide pieces 44 abut the oppositely curved inclined surfaces 47. When the inclined surfaces slide off one another, the pressure piece 18 rotates. If the bolt 13 is now relieved, the inclined surfaces 45 slide on the inclined surfaces 37 of the guide ribs 36 until the guide pieces 44 fall into the grooves 39. In these, however, they are only able to advance the guide pieces 41 of the bolt 13 until the front edges of the guide pieces 44 abut the steps which are formed between the regions 39 ¹ , 39 "of different depths. This position of the bolt 13 or Pressure piece 18 can be seen from FIG. 17.

Claims (8)

1. Hinge arm with mounting plate, which is provided on both sides with mutually parallel guide grooves, in which from the legs of the slid-on U-shaped hinge arm inwardly angled sliding webs can be pushed up to the stops formed by the groove-defining end walls, and with one. Hinge arm in its pushed-on position and releasable device, characterized in that in a recess (9) connecting the guide grooves (5, 6) and extending transversely to these, two plates (10, 11) overlapping one another in the central region of the fastening plate (1) ), which run and intersect with each other approximately diagonally from their inner corner regions in the insertion direction of the hinge arm (24) to their rear outer corner regions Elongated holes (16, 17) are provided, that the fastening plate (1) is provided in the central plane between the guide grooves (5, 6) with a bore (12) running parallel to the latter, in which a bolt projecting from the front (13) is guided so that it can move longitudinally so that the bolt (13) carries a radial pin (14) which passes through the bottom of the recess (9) in an elongated hole (15) parallel to the bore (12) and into the elongated holes (16, 17) of the plates (10, 11) engages in that the bore (12) is provided at its rear end in the insertion direction of the hinge arm (24) with an abutment (20) for the compression spring (19) which is located between the latter and the bolts ( 13) is clamped under pretension, and that the pin (14) striking the front end of the elongated hole (15) in the bottom holds the plates (10, 11) in a position at least partially penetrating the guide grooves (5, 6) and the length of the guide grooves (5, 6) from the in the insertion direction v order the plate sides (33) up to the end walls (8) that delimit this corresponds to the length of the sliding webs (30, 31). 2. Hinge arm according to claim 1, characterized in that the bolt (13) in the bore (12) can be locked by a ballpoint pen mechanism in two end positions of different heights and can be transferred from one end position to the other by pressing in and then relieving it, and in that lower end position of the pin (14) is pushed back so far in the slot (15) of the bottom that the plates (10, 11) are withdrawn from the guide grooves (5, 6). 3. Hinge arm according to claim 1 or 2, characterized in that the edge regions (34, 35) of the plates (10, 11), which in their extended position in the guide grooves (5, 6) grip, are bent in opposite directions so that they lie in the plane of the guide grooves (5, 6). 4. Hinge arm according to one of claims 1 to 3, characterized in that the front, the sliding webs (30, 31) locking edges (33) of the plates (10, 11) or the rear edges of the sliding webs (30, 31) beveled are. 5. Hinge arm according to one of claims 1 to 4, characterized in that in the hinge arm (24) one of the joint adjustment serving screw (23) is screwed, which is provided with an annular groove (22), in this in an elongated guide (21) the mounting plate (1) is guided and with the flanks of the annular groove (22) overlaps the upper and lower edges (25) of the guide (21). 6. Hinge arm according to claim 5, characterized in that the slot guide (21) is open on one side. 7. Hinge arm according to one of claims 1 to 6, characterized in that the distance of the sliding webs (30, 31) from the adjusting screw (23) is greater than the distance of the recess (9) from the open end of the slot guide (21) and that the guide grooves (5, 6) in the region of the recess (9) are open at the top. 8. Hinge arm according to one of claims 1 to 7, characterized in that the sliding webs (30, 31) with play in the grooves (5, 6) and the end portions of the grooves (5, 6) inclined upwards or downwards to compensate for play are.

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