DE4416698C2 - Fastening device for wall mounting of hanging parts - Google Patents

Description

The present invention relates to a fastener gung device according to the preamble of claim 1.

Such fastening devices are known and are widely used in the interior of Räu men, where they can be used, for example, for wall mounting Panels used on supporting stand elements will.

For fastening the wall panels to the pedestal The plug-in parts are first known fastening devices on the back of the Wall panels attached and then to the Verbin extension with the stand elements formed therein Opening openings under elastic deformation of the Inserted parts used. After insertion the wall panels by the return spring forces of the Insert parts held on the stand elements.

A decrease in the known with the fastening directions attached to the wall elements Paneling is only through one of the previous ones  guiding movement of the plug-in parts opposite Return movement possible, in which the Rückstellfe forces must be overcome. With the known Fastening devices can therefore be observed that at the latest after repeated weight loss a wall panel - for example for maintenance or repair to wake up - at least a slight plastic ver shaping of the elastic insert parts occurs, so that their spring preload in the used stood decreases, resulting in decreased holding power of the insert parts in the receiving parts, so that the wall panels are held securely on the pedestal ment is no longer guaranteed in every case.

DE 70 12 123 U1 is a fastening device direction with a plug-in part and a receptacle known part, in which the insert part for fastening gung behind a locking edge of the receiving part an essentially horizontal one guide movement can be snapped in and in the snapped closed stood on a vertical support, where the insert part with at least one return lock device is provided in the introduced Zu stood behind the locking edge of the Receiving part is arranged. In the well-known Be fastening device is a loosening only by the Overcoming return spring forces of the insert partly possible. From DE 15 75 257 A1 is a Be Fastening device known in which a loosening only by destroying the fastening device can be done.

The present invention is based on the object de, a fastening device of the ge above named way of creating which is a repeated disassembly enables without overcoming return spring forces.

This task is accomplished by a fortification device tion solved with the features of claim 1.

In the fastening device according to the invention comes the insert in the introduced Zu stood below a return opening in the receiving part.

The fastening device according to the invention enables light the assembly of a hanging part by a hori zonal insertion movement of the insert part in the Recording part. The spring independent Holding force is due to the between the receiving part and the insert part effective return lock device  guaranteed. Dismantling one by means of Fastening device according to the invention fastened However, the hanging part remains easily possible, since that Hanging part together with the insert part in vertical Moved upwards and when reaching the Return opening for removing the hanging part from the Wall moved horizontally out of the receiving part can be.

In a first advantageous embodiment of the Fastening device has the plug-in part min at least one Fe arranged on an insertion base derzunge with a rest area, the back is limited by a stop edge, and the Return lock device is by at least one Contour protrusion formed, the opposite of that Stop edge is arranged. The receiving part is by, for example, integrally in a stand the element-formed receiving frame is formed, wherein the return opening as a frame recess is formed.

This first advantageous embodiment created a fastening device in which the advantageous effects already discussed above due to very slight modifications compared to the be knew Be with resilient plug-in parts fastening devices can be achieved. The training a contour protrusion on the insert part and a frame recess on the receiving part can by be carried out without a complete redesign the known plug-in parts or receiving parts not would be agile. This means that the beneficial Modifications with the least possible constructive Effort is feasible, and essentially the manufacturing facilities for manufacturing the be knew fastening devices for the manufacture  development of this first embodiment of the invention ß fastening device can be used.

It is particularly simple and effective if the Contour protrusion from a rigid, tongue-shaped Spinous process is formed from the surface the spring tongue is bent out. Thus, in Ver same as the conventional insert parts an essentially the same sheet metal blank Manufacture of the male part to be worked on only an incision is to be added to a bending out of the spinous process from the surface surface of the spring tongue.

A particularly high reliability of the fasteners supply device is achieved when several, approximately alternately on both sides of the insertion base Orderly spring tongues are provided, each have at least one contour projection, and meh rere frame recesses are provided in ih number and arrangement of the contour projections of the Spring tongues correspond.

If transverse to the insertion base of the insert Fastening section for connection to the slope part is provided with a positioning ment is provided, for example as a folding web is a particularly precise position, ver rotation-proof fastening of the plug-in part on the slope partly possible.

It is particularly advantageous if between the An striking edge or the stop edges of the spring tongue (s) and the mounting section a distance trained to interpose intermediate elements is. This makes it possible to maintain the holding force of the  spring-elastic plug-in part the same early for clamping insulation or other Materials between the stand element and the hanger to use partially.

In a further advantageous embodiment of the Fastening device according to the invention Insert part designed as a rigid part with a return lock provided in the front end area device, which is designed as a locking paragraph, and the receiving part is an insert frame with a frame base arranged cheeks trained det, the free, forming the return opening Space in one below the return opening trained locking area of at least one an inside of the spring cheeks trained Kon head start is limited.

In this embodiment, the elastic ver malleable receiving part as insert frame provided for the arrangement in the stand element and the rigid, rigid insert for the Attachment provided on the hanging part. Because of his rigid, rigid construction proves itself the insert as insensitive to improper proper treatment. This is particularly the case with Handling the wall panels before inserting the Plug-in parts are an advantage as they are in this condition exposed plug-in parts at a bie soft version can be easily bent and thus a correct insertion of the insert parts can be prevented in the assigned receiving parts could.

A particularly simple and technically ko is the most cost-effective production of the contour projection possible if this consists of a rigid, tongue-shaped  gene web is formed from the surface of the Spring cheek is bent out. This type also offers the formation of the contour projection the advantage that with appropriate specification of the turning angle Bridge can be aligned so that it is Insert the insert part on the contour of the the end area of the plug-in part creates and thus the introduction is simplified.

If the latching heel on the plug-in part is replaced by a flange ke a notch incorporated in the insert is formed, the locking device acts in both Axial directions of the insert part, so that between the stand element and the wall panels a firm one Distance is adjustable.

This distance can be specified exactly, if between the locking groove and a rear fastening end of the plug-in part for attachment to the Wall panels a spacer to create the Ab stands is formed, this distance the Arrangement of intermediate elements, as with insulation, for example.

It is particularly advantageous if the insert part is designed as a pin on its fastening end with a fastening thread is so that the attachment of the male part on the Wall panels can be screwed in.

Below are two particularly advantageous leadership forms of the attachment according to the invention device explained with reference to the drawings. Show it:  

Figure 1 shows a first embodiment of a fastening supply device with a male part and a female part in a plan view.

Figure 2 shows the plug-in part in an individual representation.

Figure 3 shows the plug-in part shown in Figure 2 in a view in the direction of arrow III.

Fig. 4, the Befestigungsvor direction shown in Figure 1 in a sectional view according to section line IV-IV;

Figure 5 shows the Befestigungsvor direction shown in Figure 1 in a sectional view according to section line course VV.

FIG. 6 shows a sheet metal blank for producing the insert part shown in FIG. 2;

Fig. 7 shows a second embodiment of the fastening device in a plan view;

Fig. 8, the Befestigungsvor direction shown in Fig. 7 in a sectional view according to section line VIII-VIII.

Fig. 1 shows a first embodiment of a fastening device 10 having a male part 11 and a receiving part 12 which serves for attaching a wall panels 13 to a stand member 14. The fastening device 10 allows, for example, the combination of a plurality of wall panels 13 and a corresponding number of stand elements 14 to form an overall partition wall not shown in detail. In Fig. 1, only a half te of a symmetrically formed stand element 14 and an edge region of a wall panel 13 connected thereto is shown.

Fig. 2 shows the male part 11 in a not a built, relaxed state, whereas the male part 11 is in the in Fig. 1 in the receiving part 12 built-in state under tension.

As is clear from FIGS. 2 and 3, the insert 11, for example made of a hardened spring steel, has a fastening section 15 and an insertion base 16 arranged transversely thereto. On the insertion base 16 there are a plurality of spring tongues 17 , 18 and 19 arranged alternately on both sides of the insertion base 16 , which are formed from mutually bent end regions 20 , 21 and 22 in the initial state of flat sheet metal tongues 23 , 24 and 25 ( FIG. 6 ).

As shown in FIG. 2, the individual spring tongues each have an insertion bevel 26 and a latching bevel 27 inclined towards the insertion bevel 26 , which together with a rear stop edge 28 oriented transversely to the bevel 27 form a latching region 29 .

In the transition from the insertion slope 26 to Rastschrä ge 27 , the outer spring tongues 17 and 19 arranged on one side are each provided with a spinous process 30 . The middle spring tongue 18, which is arranged on the opposite side of the insertion base 16 , is provided with two spinous projections 30 in the transition from the insertion slope 26 to the locking slope 27 ( FIG. 3) in accordance with its greater width.

The receiving part 12 is formed in the shown in FIG. 1 exemplary embodiment of the fastening device 10 by an integrally formed in the stand member 14 receiving frame. For the introduction of the plug-in part 11 into the receiving part 12 , that is to say for fastening the wall panels 13 to the stand element 14 , the plug-in part 11 , which is connected via the fastening section 15 approximately by screwing to the wall panels 13 , by pressing on the wall panels 13 in Direction of arrow 31 in the receiving part 12 moved into. The spring tongues 17 , 18 and 19 move according to their A bevels 26 continuously against the Einführba sis 16 until they are finally inserted as far into the receiving part 12 that a locking edge 32 engages behind the spinous processes 30 and range 29 in the Rastbe Spring tongues 17 , 18 and 19 come to rest. The latching edge 32 is then firmly anchored between the stop edges 28 of the spring tongues 17 , 18 and 19 and the associated spinous processes 30 .

In this position, the elastic return spring forces of the spring tongues 17 , 18 and 19 cause the spring tongues 17 , 18 , 19 to spread against the opposite regions of the latching edge 32 of the receiving part 12 .

In order to enable a clear positioning of the insertion part 11 relative to the wall panels 13 and to prevent rotation, an edge web 33 of the fastening section 15 engages in a positioning groove 34 on an inside 35 of the wall panels 13 .

Between the stop edges 28 of the spring tongues 17 , 18 and 19 and the fastening portion 15 of a plug-in part 11 , a distance A is formed which allows the arrangement of intermediate elements, such as the sound insulation layer 36 indicated here. Instead of the example chosen sound insulation layer, which is intended to prevent the formation of sound bridges between the stand element 14 and the wall panels 13 , it is equally possible to provide a heat insulation layer, for example, which prevents the formation of cold bridges.

With reference to FIGS. 4 and 5 is intended to be explained in front part exemplary disassembly possibility which is given by the fixing device 10 below. As is clear from Fig. 4, the locking edge 32 of the receiving part 12 is seen ver with frame recesses 37 which, with regard to their arrangement apart from a vertical offset V, match the arrangement of the spinous processes 30 . In addition, the frame recesses 37 are dimensioned such that the mandrel extensions 30 can be moved horizontally through the frame recesses 37 while eliminating the vertical offset V.

In the positioning shown in FIG. 4, the insertion part 11 is due to the weight of the wall panels 13 on a lower edge 39 of the receiving part 12 and the spinous processes 30 are arranged with the vertical offset V to the respectively assigned frame recesses 37 . This corresponds to the mounting position of a plug-in part 11 shown in FIG. 1.

The illustration in Fig. 5 illustrates how by a vertical shift V eliminating lifting movement in the direction of arrow 38, the spinous processes can be brought 30 into register with the Rahmenausnehmungen 37, and so the effect of the spinous processes 30 as a feedback disabling means for preventing the insertion 31 opposite return movement is canceled. Thus, after compensation for the vertical offset V, ie a corresponding lifting of the wall panels 13 , these can be easily removed from the stand element 14 .

Fig. 7 shows in a further embodiment of a mounting device 40 having a male 41 and a female portion 42.

As is clear from Fig. 7, the receiving part 42 is formed as an insertion frame with two par allel mutually arranged spring cheeks 43 , 44 , which are connected to each other via a common, transverse frame base 45 . The spring cheeks 43 , 44 are each provided at their free ends with locking areas 46 , 47 . The latching areas 46 , 47 each have a latching bevel 48 which is delimited on one side by a stop edge 49 and on the opposite side by a spinous extension 50 .

In the inserted state shown in FIG. 7, the insertion frame 42 is resiliently locked over its locking areas 46 , 47 with a locking edge 51 of a receiving opening 52 in the stand element 14 .

To insert at its fastening end 53 via a fastening thread 54 connected to the wall panels 13 insert 11 into the insertion frame 42 , the wall panels 13 with the insert 41 in the direction of arrow 31 in the space between the Fe cheeks 43 , 44 are inserted. During the insertion, the pin-shaped insertion part is supported on two bottom cheeks 55 , 56 , which are arranged transversely to unerrims 57 , 58 ( FIG. 8) of the spring cheeks 43 , 44 . The bottom cheeks 55 , 56 are separated from one another by a slot 59 .

When the plug-in part 41 is inserted, it engages with its latching head 60 against two latching webs 61 , 62 which are arranged opposite one another on the inner sides of the spring cheeks 43 , 44 . The locking webs 61 , 62 are spread against the action of the return spring forces of the Fe derwangen 43 , 44 until they snap into a locking groove 63 behind the locking head 60 , with a locking shoulder 64 formed by a groove flank acting as a return locking device for the insert part 41 .

Fig. 8 clearly shows that a free space between the spring cheeks is formed above the locking webs 61 , 62 , which serves as a return opening 65 . In Fig. 8 with the broken circumferential line, the latching state of the plug-in part 41 and with the dash-dotted circumferential line, the return state of the plug-in part 41 is shown, in which the Wandpa neele 13 can be removed from the stand member 14 .

The illustration according to FIG. 8 makes it clear that in the same way as with the fastening element 10, the insertion part 41 of the fastening element 40 can be released from the receiving part 42 by a vertical movement in the direction of the arrow 38 and a subsequent return movement in the opposite direction.

Claims (11)

1. Fastening device for wall fastening of hanging parts, in particular for fastening wall panels, with a plug-in part and a receiving part, in which the plug-in part can be latched by means of a substantially horizontally directed insertion movement and fastened in the latched state for fastening towards a locking edge of the receiving part a vertical support rests, the insertion part being provided with at least one return locking device which, in the inserted state, is arranged in the insertion direction behind the latching edge of the receiving part, characterized in that the return locking device ( 30 , 64 ) in the inserted state of the insertion part ( 11 , 41 ) comes to lie with a vertical distance (V) below half of the associated return opening ( 37 , 65 ) in the receiving part ( 12 , 42 ). 2. Fastening device according to claim 1, characterized in that the plug-in part ( 11 ) has at least one on an insertion base ( 16 ) arranged spring tongue ( 17 , 18 , 19 ) with a locking area ( 29 ), the rear by egg nen stop edge ( 28th ) is limited, and the return locking device is formed by a contour projection ( 30 ) which is arranged opposite the stop edge ( 28 ), and the receiving part ( 12 ) is formed by a preferably integrally formed in a stand element ( 14 ) receiving frame ( 12 ) , wherein the return opening is designed as a frame recess ( 37 ). 3. Fastening device according to claim 2, characterized in that the contour projection is formed from a rigid, tongue-shaped spinous extension ( 30 ) which is bent out of the surface of the spring tongue ( 17 , 18 , 19 ). 4. Fastening device according to claim 2 or 3, characterized in that a plurality, preferably alternating on both sides of the insertion base ( 16 ) arranged spring tongues ( 17 , 18 , 19 ) are vorgese hen, each having at least one contour projection ( 30 ), and Several re frame recesses ( 37 ) are provided, the number and arrangement of which correspond to the contour projections ( 39 ) of the spring tongues ( 17 , 18 , 19 ). 5. Fastening device according to one or more of claims 2 to 4, characterized in that transversely to the insertion base ( 16 ) of the insert part ( 11 ) has a fastening section ( 15 ) for connection to the hanging part is provided, the fastening section ( 15 ) with a positioning element preferably configured as a folding web ( 33 ) can be seen ver. 6. Fastening device according to one or more of claims 2 to 5, characterized in that between the stop edge ( 29 ) or the stop edges of the spring tongue (s) ( 17 , 18 , 19 ) and the fastening section ( 15 ) a distance (A) is arranged for the arrangement of intermediate elements ( 36 ). 7. Fastening device according to claim 1, characterized in that the insertion part ( 41 ) is designed as a rigid part with a provided in the front end area Rückführsperreinrich device, which is designed as a locking paragraph ( 64 ), and the receiving part as a insert frame ( 42 ) with on a frame base ( 45 ) arranged spring cheeks ( 43 , 44 ) is formed, the free, the return opening ( 65 ) forming space in a trained below the return opening th latching area ( 67 ) of at least one on an inside of the spring cheeks ( 43 , 44 ) trained contour projection ( 61 , 62 ) is restricted. 8. Fastening device according to claim 7, characterized in that the contour projection is formed from a rigid, tongue-shaped web ( 61 , 62 ) which is bent out of the surface of the spring cheek ( 43 , 44 ). 9. Fastening device according to claim 7 or 8, characterized in that the latching shoulder is formed by a flank of a latching groove ( 63 ) incorporated in the insert part ( 41 ). 10. Fastening device according to one or more of claims 7 to 9, characterized in that between the locking groove ( 63 ) and a rear end fastening end ( 53 ) of a plug-in part ( 41 ) a spacer ( 68 ) to create a distance for the arrangement of Intermediate elements ( 36 ) is ausgebil det. 11. Fastening device according to one or more of claims 7 to 10, characterized in that the insertion part is ausgebil det as a pin ( 41 ) which is provided at its fastening end ( 53 ) with a fastening thread ( 54 ).