DE4403389A1 - Frame corner e.g. for framing pictures - Google Patents

Abstract

The frame corner consists of a corner piece (1) with at least two connecting flanges (4,5) in a common plane and each with a frame beam (2,3) fitted to each flange. The corner piece and the frame beams can be fitted together in the longitudinal direction of the beam. The connecting flange is usually fitted into the end of the frame beam. A transverse locking connection consisting of at least one locking member (8) and one recess (9) secures the joint against unintentional separation. The corner piece may consist of two identical halves (16,17).

Description

The invention relates to a frame corner consisting of a corner piece with at least two connecting legs and each one frame spar per connecting leg, each connection manure leg via an axial connector with the assigned neten frame spar end is connected.

According to the exemplary embodiment, this can be around the corner of a flat, flat frame, but also around a corner of a re act gals, rack or the like. Furthermore, the frame can Element or subframe of a larger one, from several immediately adjoining or interconnected partial frame existing flat frame. The same applies to the frame, shelf or the like. From this it follows that the corner piece according to the embodiment an angular shape, but also one Can have a T shape or a cross shape. All these forms of who for example, if the larger frame consists of several Elements or subframes. In the case of a spatial Ge picture - in contrast to the flat frame - there are two or more rere connecting leg of the corner piece in a common Level, while one or more other legs are perpendicular extend to this common level. In this sense it is To understand the description of the frame corner mentioned at the beginning.

One end of the frame spar is placed on each connecting leg stuck. A flat frame of this kind is due to the  US-A-4 636 105. The frame spars are there pushed onto the corner pieces and only jammed by Rei exercise recorded. However, this clamp connection is not in al len use cases of the frame safe enough.

With a frame consisting of corner pieces and frame bars for a table (FR-A-1,242,195), i.e. an area of application, where in any case greater forces must be expected than for a picture frame, the plug connection is made using conical clamping pieces and a clamping screw secured. These Construction is complex and aesthetically unreliable peaceful, although it should not be overlooked that the most applications very much on the optically favorable out see arrives.

As a result, there is the task of creating a corner of the frame gangs described type so that a better safety tion of the connection of the connecting legs with their frame spar and thus the entire frame, frame, shelf or the like is achieved, the improved security no optical Bring disadvantages and achieve them as cheaply as possible should be.

To solve this problem, the invention proposes that gesi each plug connection via a cross locking device chert is that of at least one integrally molded, cross to the insertion direction protruding locking member of the connection leg and a latching of the frame spar end there or the other way around.

Because the locking member protrudes transversely to the direction of insertion while plugging together a resilient evasion of the Latching member or the catch holder necessary. As soon as the Parts are plugged together far enough so that the latch is aligned with the catch, the spring elastic force, which then causes the latch enters the catch or vice versa. Once this is ge the parts can, at least in the usual  occurring forces can no longer be pulled apart. A later release of the plug connection is then possible, for example, if the cross latching is resilient in a suitable manner can be solved and then after releasing the cross locking Parts apart. Then during the pull apart with appropriate training of the connecting leg and / or the frame spar further impact in the sense of a lifting the cross locking is no longer necessary. If contrary to Embodiment, the locking member is not resilient can give way, so a resilient evasive movement of the latching wall can be possible. This sets if necessary, the presence of run-up slopes, which this resilient expansion of the wall with the snap-in holder possible.

A further development of the invention is that each Ver locking member is integrally formed on a resilient tongue. A one-piece manufacture of the locking member, regardless of whether it is now on a resilient tongue or not, we contributes significantly to the inexpensive production and makes the latter in particular especially suitable for the use of plastic. In the event of a resilient tongue can this when plugged together up to Dodge spring-loaded cross locking so that a spring not elastic expansion of a wall with the catch necessary is.

A further embodiment of the invention results from that at least the corner piece made of flexible material, such as art fabric is made and there are two on each connecting leg resiliently arranged symmetrically to a longitudinal center plane Tongues with a locking member. The ones mentioned there two resilient tongues can be put together when the Connecting leg and the frame spar pivoted in opposite directions are, for example against each other or inside the verb dungsschenkels, where they then go in opposite directions - In this case, cross-lock outwards.  

A particularly preferred variant of the invention is therein see that all connecting legs of the corner piece have one in common have the same longitudinal median plane and at the same time the Plane of symmetry for the two resilient tongues of each connection is thigh. It is a corner piece for a flat frame. This can be two, three or more ver have binding legs. In the case of two connections legs are arranged at an angle to each other, for example. right angle. In the case of three connecting legs, it can are, for example, a T-shaped corner piece, while four Connecting legs and each rectangular assignment otherwise a cross shape arises. A star shape is also possible.

The corner piece consists of two in a very advantageous manner preferably identical corner piece halves, which is manufactured Brings advantages. These two corner piece halves must be in suitably, in particular pluggable, interconnected be, taking the connection if necessary or provided it not secured by the plug connection with the frame spar is secure separately. A known type of connection two-part corner pieces results from the mentioned US-A-4 636 105.

The free end of each connecting leg half is in Weiterbil extension of the invention formed as a flat three-pronged fork where in the middle fork a resilient tongue with across standing pin-like locking member forms. It is about here, as the embodiment shows, to a preferred one Variant. When pushing the frame spar onto each joint manure leg of this corner piece give way to the two resilient Tongues with their locking member towards each other, i.e. inside of the connecting leg until there is sufficient connection insert the peg-like latching element in relation to it Latching is aligned and then spring into this can occur lastingly.

This corner piece can be further developed by the middle fork slightly compared to the two outer  slants and when it is inserted, after each outside. With appropriate training of the recording for the Connecting leg, the locking member is also engaged Condition under the spring tension of his fork, that of the Effect forth corresponds to a leaf spring.

In a further development of the invention, the frame spar is a tube or a tubular hollow profile, preferably made of plastic, whereby the connecting leg can be inserted into the frame spar end is. In this case you can, for example, the frame spars by Ab Manufacture cuts of yard goods, for example an extruded profile. It is particularly advantageous here that the hollow profile a longitudinal center plane is symmetrical and this longitudinal center plane coincides with the plane of symmetry of the corner piece.

Further designs of this frame corner with the associated Effects and advantages result from the sub say and the following description of an execution for example.

The drawing shows the embodiment of the invention explosive in an oblique view.

The frame corner consists of a corner piece 1 and two frame bars 2 and 3 . Accordingly, a rectangular frame is constructed from four such corner pieces and four frame spars. If two of the corner pieces have a T-shape, i.e. they are, so to speak, double corner pieces, you can directly connect a second frame to this rectangular frame. The same applies analogously to spatial structures in which the corner piece not only has two connecting legs 4 and 5 , which lie in a common frame plane, but also at least one further connecting leg, which is defined transversely, preferably perpendicularly to the latter, by the connecting legs 4 and 5 th plane, i.e. extends vertically up or down in the drawing.

The following is for the sake of simplicity and without this being a may be understood restrictively, assumed that the Frame is a rectangular flat frame.

The corner piece 1 or each of its connecting legs 4 , 5 is secured to the associated end of the frame spar 2 or 3 via a cross locking device against unwanted loosening of the fastex connection. The cross locking device consists of a transverse to the insertion direction 6 or 7 projecting Ver locking member 8 and a receiving receiving this 9th In the exemplary embodiment, the latching members 8 are located on the corner piece 1 or its two connecting legs 4 and 5 , which is why the latching receptacles 9 are each attached to the frame bars 2 and 3, respectively. In addition, the embodiment is pin-shaped latching elements, while the latching elements are openings or, in the case of circular pins, holes. The latter are attached to the walls or webs 10 and 11 of the frame bars 2 and 3 designed as profile rails, for example drilled.

From the above it follows indirectly that in the execution example the connecting legs 4 and 5 are inserted into the associated frame spar ends. For this reason, the immediate corner region 12 of the corner piece 1 is thicker than the "total thickness" of the connecting legs 4 and 5 . This means that when the frame spars 2 and 3 are fully pushed on, their outer surfaces merge seamlessly into the outer surfaces of the corner region 12 . In order to ensure a secure transverse locking, however, it is not provided that the front end edges of the frame spars 2 and 3 , when plugged in, rest against the shoulder-like edges 13 and 14 of the corner region or corner piece 1 . A small gap is expediently tolerated here.

Each locking member 8 is integrally formed on a resilient tongue 15 in the embodiment, preferably both the corner piece 1 and the frame spars 2 and 3 are made of plastic be. The resilient tongues 15 act in the manner of leaf springs held at one end.

The corner piece 1 consists of two preferably identical corner piece halves 16 and 17th They can be coupled to one another, for example, via a pin 18 in a manner not shown in detail, the connection also having to be rotationally fixed at the same time. With identical formation from the corner piece halves 16 and 17 , of course, a pin half must be provided on each, the two pin halves then complementing each other to form the pin 18 .

From the foregoing it follows that each connecting leg 4 and 5 consists of two parts, in the drawing an upper tongue-like part and a lower tongue-like part. Both are relatively flat and fork-like at their free end. The middle fork tine forms the resilient tongue 15 with the locking member 8 . In this way, the corner piece 1 receives a total of four resilient tongues 15 , each with a locking member 8 . In a corresponding manner, the cross section of the frame spars 2 and 3 is selected so that there are insertion openings 19 and 20 , each of which takes one of the connecting leg halves and is tight. Since it is in the frame spars 2 and 3 profiles, of course, the insertion openings 19 and 20 through the whole profile, so that at the other end of the frame spar 2 or 3 again a connec tion leg of another corner piece 1 of the same type inserted can be.

The corner piece 1 is, according to the above statements, symmetrical to a transverse plane through the center of the pin 18 . As a result, there are two resilient tongues 15 above and below this plane of symmetry. This plane coincides with a further plane of symmetry 22 which extends through the center of the central web 21 of each frame spar 2 or 3 .

From the drawing it is clear that the central fork tines forming a resilient tongue 15 are slightly inclined relative to the two outer fork tines 25 and 26 , in each case towards the outside, ie away from the plane of symmetry 22 . So if you insert the connecting leg halves 23 into the insertion openings 19 and 20 , the middle fork tines must first be depressed until the free end of the locking member 8 is below the web 10 or above the web 11 . In this case, the resilient tongue 15 must then enter the groove of the frame spar, which is U-shaped in cross-section and internally limited by the web 21 . As soon as the connecting leg is inserted deep enough into the frame spar end or, conversely, this frame spar end is plugged onto the connecting leg and the latching member 8 is aligned with its latching action 9 , the force of the depressed leaf spring or resilient tongue 15 can have an effect, which then causes the peg-shaped latching member 8th from the inside enters the latch 9 . The connection between corner piece 1 and frame spar 2 or 3 is thereby secured against pulling these parts apart. If you later want to release this Querver locking or the frame spars 2 or 3 from the corner piece 1 , you have to press the locking members 8 of each connecting leg far enough inwards with a suitable tool and then pull off the frame spar 2 or 3 .

The inner groove 27 of each frame spar 2 , 3 can, for example, accommodate the longitudinal edge of a pane and an image or other writing material, so that the entire frame can then be used as a picture frame. The opposite outer groove 28 can be closed, for example, by means of a suitable plastic strip, in particular flush on the outside. It is also conceivable that there is no closure for design reasons.

Claims (11)

1. Frame Area, consisting of a corner piece (1) with at least two connecting limbs (4, 5) as well as one frame spar (2, 3) by connecting legs (4, 5), each Verbin dung legs (4, 5) axial via a plug connection is connected to the associated frame spar end, characterized in that each plug-in connection is secured via a Querver locking device which consists of at least one integrally molded, transversely to the insertion direction ( 6 , 7 ) projecting locking member ( 8 ) of the connecting leg ( 4 , 5 ) and a locking receptacle ( 9 ) the frame spar end is available or vice versa. 2. Frame corner according to claim 1, characterized in that each of the locking member ( 8 ) is integrally formed on a resilient tongue ( 15 ). 3. Frame corner according to claim 1 or 2, characterized in that at least the corner piece ( 1 ) is made of flexible material, such as plastic, and on each connecting leg ( 4 , 5 ) two resilient tongues ( 15 ) arranged symmetrically to a longitudinal center plane. with a locking member ( 8 ). 4. Frame corner according to claim 2 or 3, characterized in that all connecting legs ( 4 , 5 ) of the corner piece ( 1 ) have a common longitudinal center plane and this also the plane of symmetry ( 22 ) for the two resilient tongues ( 15 ) of each connecting leg ( 4 , 5 ) is. 5. Frame corner according to one of the preceding claims, characterized in that the corner piece ( 1 ) consists of two preferably identical corner piece halves ( 16 , 17 ). 6. Frame corner according to claim 5, characterized in that the free end of each connecting leg ( 4 , 5 ) of each corner piece half ( 16 , 17 ) is formed as a flat three-pronged fork, the middle prongs having a resilient tongue ( 15 ) with a transversely projecting one pin-like locking member ( 8 ) forms. 7. frame corner according to claim 6, characterized in that the middle fork tines ( 15 ) relative to the two outer ( 25, 26 ) has a slight inclination and protrudes in the locking direction over the common plane of the two outer fork tines ( 25 , 26 ). 8. Frame corner according to one of the preceding claims, characterized in that the frame spar ( 2 , 3 ) is a tube or tubular hollow profile, preferably made of plastic, and the connecting leg ( 4 , 5 ) can be inserted into the frame spar end. 9. Frame corner according to one of the preceding claims, characterized in that the frame spar ( 2 , 3 ) is symmetrical about a longitudinal central plane ( 22 ) and the longitudinal central plane ( 22 ) coincides with the plane of symmetry of the corner piece ( 1 ). 10. Frame corner according to claim 9, characterized in that each symmetry half of the frame spar ( 2 , 3 ) has an insertion channel ( 19 , 20 ) for a connecting leg half ( 23 , 24 ) and formally adapted to one another in the sense of a longitudinal guide with normal play are. 11. frame corner according to at least one of the preceding Ansprü surface, characterized in that the latching receptacle ( 9 ) is in each case an opening in a wall ( 10 , 11 ) of the frame spar ( 2 , 3 ).