Patent Publication Number: US-2010129143-A1

Title: Fastener for detachably connecting a profile to a counterprofile

Description:
The invention is directed to a fastener for disengageably connecting of a profile to a counter profile. The counter profile exhibits an undercut groove and the profile exhibits a receiver for a housing of the fastener. An eccentric bolt is rotary supported in the housing, wherein the eccentric bolt in addition to the cam disk disposed in the interior of the case also exhibits a bolt head projecting from the housing and serves for the actuation of rotation of the eccentric bolt. A plate is disposed in the housing, wherein the plate is longitudinally shiftable by the cam disk between a pullout position and a plug in position. At least one hook is disposed at the outer end of the plate, wherein the hook projects from the housing. There is a bevel at the plate running inclined to the longitudinal shifting, wherein the plate is supported at a contact point of the housing. This has the consequence that upon plugging in the hook runs cross behind the groove wall in the counter profile. An inner section at the plate is penetrated by the eccentric bolt. 
     Such a fastener is known from the German printed Patent document DE 3128595. The known case of the fastener is formed as a box with at least regionally walls on all sides, apart from breakouts for mounting its individual components together, and therefore has to be produced by injection molding, for example by zinc die casting. 
     Although the known fastener has proven its value, in some application cases there is noticed an insufficient strength of the fastener. In addition production and assembly costs of the fastener are undesirably high. 
     It is an object of the present invention to develop a fastener of the kind indicated in the preamble of claim  1 , which fastener is economically and distinguishes itself by a high strength. This is accomplished according to the present invention by the features recited in claim  1 , which features have the following special importance. 
     According to the present invention, the fastener is a single piece housing open on two end sides, wherein the housing is generated by multiple bending of a sheet metal blank. In fact, a suitable working material with a sufficient high strength can be employed as material for the sheet metal blank. In particular, steel has proven itself here. The sheet metal ends of the sheet metal blank, abutting against each other and generated during bending of the case, are connected to each other, wherein the connection is directed opposite to a widening of the case resulting from overturning of the cam disk. A bending off of the angles from the sheet metal blank is thereby prevented in the case and the shape of the case is thereby stabilized. This feature results in a surprisingly high strength. At least at the front case end at least a first angling off of wall end pieces is furnished in order to generate a contact point for the plate bevel. 
     An economic production of the case with a high strength can be achieved at least in cases where the two sheet metal ends are held together by shape matching and, as proposed in claim  2 , exhibit two formed edges running in the longitudinal direction of the case, wherein the two formed edges have a border profile undercut and complementary to each other. Then there is present a face flush shape matching connection. One obtains a space saving smooth contour of the case, wherein the contour of the case can be introduced without problem into a correspondingly small dimensioned receiver in the profile to be connected. 
     A leaf spring is disposed at the inner end of the plate according to an embodiment example, wherein the leaf spring presses outwardly the bolt head cross to the longitudinal shifting direction and out of the case. A cross force effective at the bolt head and cross directed is thereby generated. A so-called pushbutton mounting and pushbutton demounting is thereby possible. The free end of the leaf spring supports itself at an inner face of the case and slides along this support face upon longitudinal shifting of the plate. The leaf spring end assumes two extreme positions during the longitudinal shifting. There is a starting position, which is present in the pullout position of the plate. The peculiarity of this embodiment example comprises that the support face for the leaf spring end is furnished with a rising ramp at least in certain regions, wherein the ramp gets higher in the direction of the final position. The leaf spring end rests on the ramp in the final position. A longitudinally directed longitudinal force effective in the pullout sense is generated between the inclined leaf spring end the ramp, wherein the longitudinal force acts on the plate. The latter has the following consequences. 
     The case as well as the plate with its hooks and its bevels are preferably comprising steel for reasons of strength. Problems exist between the bevels of the plates and their housing contact positions during the pullout motion of the plate. The bevels of the plates slide only heavily at the contact positions of the case based on unfavorable friction values. Operational disturbances occur when one wishes to transfer the hook at the plate from its plug in position into a pullout position. Since however a longitudinal force acting in the pullout sense is generated in the plate according to the present invention, this longitudinal force can advance the sliding motion of the bevel of the plate. This longitudinal force supports the push force generated by the cam disk. The means for this longitudinal force of the plate are equally self generated, that is by the contact between the inclined leaf spring and the ramp. Since such a ramp can be generated simply by a dent in the wall of the case, the present invention does need neither additional device components nor additional space. Neither the handling nor the assembling or disassembling are interfered with by the recited inventive steps. It is decisive that the fastener according to the present invention as mentioned is easily actuable and operates reliably. 
    
    
     
       Additional steps and advantages of the invention result from the further claims, the description and drawings. The invention is represented by four embodiment examples in the drawings. A first embodiment example is shown in  FIGS. 1 through 14 , wherein the plate of the fastener is subdivided into four tongues with four hooks in its outer end region and therefore forms a four hook fastener. There is shown in detail: 
         FIGS. 1 through 3  show the front view, the rear view and the top planar view onto such a four hook fastener, wherein the plate is disposed in a push out position, 
         FIGS. 4 through 6  show the same four hook fastener in the analogous front view, rear view and top planar view, wherein the plate is disposed in its plug in position in the housing, 
         FIG. 7  shows the top planar view onto the demounted plate of the four hook fastener of  FIGS. 1 through 6 , 
         FIG. 8  shows a top planar view onto the plate of  FIG. 7 , 
         FIG. 9  shows the perspective view of the plate of  FIG. 7  or  8 , 
         FIG. 10  shows a longitudinal section through the housing of the four hook fastener shown in  FIGS. 1 through 6  along the section line X-X of  FIG. 11 , 
         FIG. 11  shows a top planar view onto the case shown in  FIG. 10 , 
         FIG. 12  shows a cross-sectional view of the case shown in  FIG. 11  along the section line XII-XII shown in  FIG. 11 , 
         FIG. 13  shows a perspective view of the case illustrated in  FIGS. 10 through 12 , 
         FIG. 14  shows a developed view of a sheet metal blank for production of the housing, wherein the canting off or, respectively, the bending lines are illustrated by dash-dotted lines in the blank. 
       Individual components of an alternative embodiment of the fastener according to the present invention are shown in  FIGS. 15 through 18 , wherein the plate of the fastener exhibits two tongues bent at a right angle in an opposite sense to each other in the plate bevel and with the bending of the hooks in an opposite sense to each other. Such a two hook fastener is not shown in detail in the drawings, however its components are shown. The drawings show: 
         FIG. 15  shows a longitudinal section view through a housing of such a two hook fastener along the section line XV-XV of  FIG. 16  in analogy to  FIG. 10 , 
         FIG. 16  shows a front elevational view of the case forming the housing in analogy to  FIG. 11 , 
         FIG. 17  shows a perspective view of the case shown in  FIGS. 15 and 16  at a smaller scale relative to  FIGS. 15 and 16 , and 
         FIG. 18  shows a planar developed view of the sheet metal blank, from which blank the case visible in  FIGS. 15 through 17  is generated by canting off and bending off. 
       Furthermore a third embodiment example of the invention is shown in: 
         FIG. 19  shows a perspective view of only the rear case end and in fact in the shape of double angling off, which generates a particular shape stable support in the fastener, into which the inner end of the plate is moved in the plug in position and thereby blocks the pushbutton actuation mentioned in claims  13  of the bolt head. Thus the disassembly of the fastener from the profile receiving the fastener can be reliably prevented. 
       Finally there is shown a four embodiment example, and in fact with a ramp at the support face for the leaf spring end: 
         FIG. 20  shows the rear view of the fastener according to the present invention prior to its assembly in a receiver of the profile, 
         FIG. 21  shows a top planar view onto the narrow side of the case in the direction of view of the arrow II (translators remark: should be XXI) of  FIG. 1  (translators remark: should be  20 ), 
         FIG. 22  shows a first end view of the fastener of  FIG. 1  (translators remark: should be  20 ) onto the end furnished with the hooks into view direction of the arrow III (translators remark: should be XXII) of  FIG. 1  (translators remark: should be  20 ), 
         FIG. 23  shows a front elevational view of the fastener shown in  FIG. 1  (translators remark: should be  20 ) onto the broad side of the case not visible in  FIG. 1 , 
         FIG. 24  shows a top planar view onto a second narrow side of the fastener of  FIG. 1  (translators remark: should be  20 ) in the direction of view of the arrow V (translators remark: should be XXIV) presented there, 
         FIG. 25  shows a top planar view onto the rear end furnished with the eccentric bolt of the fastener shown in  FIG. 1  (translators remark: should be  20 ), and in fact in the direction of view of the arrow V (translators remark: should be XXIV) presented there, 
         FIG. 26  shows a longitudinal section through the fastener of  FIG. 4  (translator&#39;s remark: should be  23 ) along the there presented jumping section line VII-VII (translators remark: should be XXVI-XXVI), if the plate furnished with the hooks is disposed in its plug in position, 
         FIG. 27  shows the rear region of the longitudinal section shown in  FIG. 7  (translators remark: should be  26 ) if the plate furnished with hooks is disposed in its final plug in position. 
     
    
    
     The fastener  10 . 1  comprises of two parts, namely out of the sheet metal blank  60 . 1  viewable in  FIG. 14  and of the plate  40 . 1  visible in  FIG. 9  the sheet metal blank  60 . 1  is formed as a single piece and is formed to a case  20 . 1  by bending at the edges  22 . 1 ,  23 . 1 ,  24 . 1 ,  25 . 1  as can be recognized in  FIG. 13 . 
     The sheet metal blank  60 . 1  has specially formed edges  68 . 1  at the sheet metal ends  26 . 1 ,  27 . 1  for providing better support after the bending, wherein the specially formed edges  68 . 1  can be brought into working connection with the corresponding counter pieces  69 . 1  for the better support after the bending, in order to maintain the sheet metal blank form matching and/or force matching after the bending. 
     The end flaps  64 . 1 ,  65 . 1 ,  66 . 1  are furnished, which are bent in opposite directions, in order to limit the freedom of motion of the plate  40 . 1  in the sheet metal blank  60 . 1 . On the oppositely disposed side, the freedom of motion of the plate  40 . 1  is limited by the canting  78 . 1 . 
     Such a mounted fastener  10 . 1  is shown in  FIG. 1 . Sensibly this fastener  10 . 1  is inserted into a profile  11  in order to hold this profile  11  in the following by way of the fastener  10 . 1  at a counter profile  12 . For this purpose the plate  40 . 1  is supported movably in the case  20 . 1  formed out of the sheet metal blank  60 . 1  and the plate  40 . 1  can be shifted in the longitudinal direction  15 . 1  of the case. 
     The case  20 . 1  has canted off case noses  16 . 1 ,  16 . 2 , for better guiding the fastener  10 . 1  at a counter profile  12 , wherein the case noses  16 . 1 ,  16 . 2  are applied at the same outer end  49 . 1  of the case  20 . 1 , wherein also the hooks  45 . 1 ,  46 . 1 ,  47 . 1 ,  48 . 1  of the plate  40 . 1  are applied at the case  20 . 1 . These hooks are arranged in an opposite sense in order to be able to grip firmly into a corresponding counter profile  12  and then to attach the fastener  10 . 1  in the receiver of  14  of the profile  11  with the profile  11  at a corresponding counter profile  12 . The hooks  45 . 1 ,  46 . 1 ,  47 . 1 ,  48 . 1  here grip into an undercut groove  13  at the counter profile  12 . 
     During the pulling tight process illustrated in  FIG. 4 , the bolt head  32  of the eccentric bolt  30  is rotated. The plate  40 . 1  of the fastener  10 . 1  is shifted in longitudinal direction based on the cam disk  31  seated under the bolt head  32  such that the hooks  45 . 1 ,  46 . 1 ,  47 . 1 ,  48 . 1  pull in the counter profile  12  to the profile  11 . The path of the cam disk  31  is limited by an inner projection  39 . 1  at the fastener  10 . 1  such that the bolt head  32  cannot be rotated continuously. The case  20 . 1  has canted off bevel faces  51 . 1 ,  52 . 1 ,  53 . 1 ,  54 . 1 , which, upon cooperation with the tongues  41 . 1 ,  42 . 1 ,  43 . 1 ,  44 . 1  of the plate  40 . 1 , spread the hooks disposed at the ends of these tongues in order to supportingly spread the hooks  45 . 1 ,  46 . 1 ,  47 . 1 ,  48 . 1  during the longitudinal motion to for aiding the hooking into the counter profile  12 . This co-operation of the bevel faces  51 . 1 ,  52 . 1 ,  53 . 1 ,  54 . 1  with the tongues  41 . 1 ,  42 . 1 ,  43 . 1 ,  44 . 1  occurs through the corresponding contact points  55 . 1 ,  56 . 1 ,  57 . 1 . 
       FIG. 2  and  FIG. 5  illustrate again what is shown in  FIG. 1  and  FIG. 4  as seen from the opposite side. The journal  34  of the eccentric bolt  30  is visible in this view, which eccentric bolt  30  transfers the fastener  10 . 1  from the open position of  FIG. 1  or, respectively,  FIG. 2  into the closed position of  FIG. 4  or, respectively,  FIG. 5  through the rotary actuation  33 . The pullout position  50 . 1  and the plug in position  50 . 2  are also here again clearly shown. 
       FIGS. 3 and 6  clarify the plug in position  50 . 2  or, respectively, the pullout position  50 . 1  again in a side view. It can be additionally recognized here that a spring loading  70 . 1  cross to the profile  11  is built up during tight pulling of the fastener to the eccentric bolt  30 , which spring loading  70 . 1  holds the fastener in the profile  11 . 
     The plate  40 . 1  is separately considered from the case  20 . 1  and this in side, front and perspective views. A leaf spring  28 . 1  can be recognized in addition to the tongues  41 . 1 ,  42 . 1 ,  43 . 1 ,  44 . 1 , which leaf spring serves to enable the above-mentioned cross force  70 . 1  to the profile  11  upon pulling tight the fastener  10 . 1 . The plate inner section  73 . 1  can be clearly seen in addition in these three figures, which plate inner section  73 . 1  is disposed at the opposite end of the outer end  49 . 1 . 
     The case  20 . 1  shows individually in three views of  FIGS. 10 ,  11 , and  12  and this time the case  20 . 1  in the  FIGS. 10 ,  11  and  12  is shown in the same way as with the  FIGS. 7 ,  8 , and  9 . These three views allow an insight also into the interior case  21 . 1  of the case  20 . 1 . The edges  68 . 1 ,  69 . 1  gripping into each other are presented here again, which edges are presented here as a widened head  71 . 1  or, respectively, as a narrowed neck  72 . 1 . 
     The broad sides  35 . 1 ,  36 . 1  and the associated narrow sides  37 . 1 ,  38 . 1  generated after the canting of the sheet metal blank  60 . 1  are also clearly shown here with additional reference to  FIG. 13  and  FIG. 14 . The plate  40 . 1  with the plate inner section  73 . 1  and the plate cutout  29 . 1  is then laid into this case  20 . 1 , wherein the hooks  45 . 1 ,  46 . 1 ,  47 . 1 ,  48 . 1  are disposed at the plate cut out  29 . 1 . Additionally, it can be recognized in  FIG. 13  that an expansion of the narrow sides  37 . 1 ,  38 . 1  in the direction of the forces  50  (translator&#39;s remark: should be  58 ),  59  is prevented during hard turning of the eccentric bolt  30 . 
     The free cut  61 . 1 ,  62 . 1 ,  63 . 1 , and  80 . 1  caused by the production conditions can be recognized in  FIG. 14  additionally to the end flaps  64 . 1 ,  65 . 1 ,  66 . 1 . An actuator  75  can be furnished at the bolt head  32  in order to be able to unbolt again easier the fastener  10 . 1 , wherein the actuator  75  transfers the fastener  10 . 1  by pressing into the unbolted position. The case  20 . 1  of the fastener  10 . 1  at its front case end  76 . 1  can therewith be easier separated from the counter profile  12 . The case  20 . 1  itself can then completely be taken out of the profile  11  including the rear case end  70 . 1 . 
       FIGS. 15 through 18  show another embodiment of the fastener  10 . 1 , wherein the case  20 . 2  is formed somewhat narrower as compared with the preceding figures. The case  20 . 2  can be recognized with its sheet metal blank  60 . 2  in  FIG. 18 . All elements of the sheet metal blank  60 . 2  can here also again be recognized, such as the end flaps  64 . 2 ,  65 . 2 , the production caused free cuts  61 . 2 ,  62 . 2 ,  63 . 2  and the noses  16 . 2 ,  17 . 2  of the case  20 . 2 . The case  20 . 2  with its interior  21 . 2  of the case  20 . 2  shown in  FIG. 17  is generated by bending the sheet metal blank  60 . 2  at the edges  22 . 2 ,  23 . 2 ,  24 . 2 ,  25 . 2 . The end flaps  64 . 2 ,  65 . 2  are here also beveled in order to cooperate with their end regions  26 . 2 ,  27 . 2  with the plate  40 . 2  laid into the case  20 . 2 . The broad sides  35 . 2 ,  36 . 2  as well as the narrow sides  37 . 2 ,  38 . 2  result then also again by bending. 
     The corresponding plate  40 . 2  contains also two tongues  41 . 2 ,  42 . 2  with the corresponding hooks  45 . 2 ,  46 . 2  at the outer end  49 . 2  of the plate  40 . 2 . The plate  40 . 2  has furthermore the bevels  51 . 2 ,  52 . 2 , which bevels exert the already mentioned spreading effect through the contact positions  55 . 2 ,  56 . 2  and the end flaps  64 . 2 ,  65 . 2  of the case  20 . 2 . 
     The case is again held together by the two edges  68 . 2 ,  69 . 2 , which edges  68 . 2 ,  69 . 2  enter into operating connection with a shape matching through broadened heads  71 . 2  and narrowed necks  72 . 2  as shown in  FIG. 17 . 
     The case  20 . 2  includes again a front case end  76 . 2  and a rear case end  77 . 2 , wherein cantings  78 . 2  are furnished at the rear case end  77 . 2  for limiting the motion of the plate  40 . 2  in the case  20 . 2 . 
     Finally,  FIG. 19  shows that the canting  78 . 3  at the rear case end  77 . 2  can be angled by also 90 degrees and can be held with a second canting  79 . 
     A modified embodiment form of the embodiment form shown already in the  FIGS. 15 through 18  is shown in the drawings to the last embodiment example ( FIG. 20  through  FIG. 27 ). In the shown embodiment example ( FIG. 20  through  FIG. 27 ) however the complete fastener is shown and not only the case shown in  FIGS. 15 through 17 , but also the profiled plate furnished for the interior of the case. An analogous plate  40 . 1 , however with four hooks  45 . 1  through  48 . 1 , is shown in the first embodiment example and in fact in the demounted state in the therewith associated  FIGS. 7 through 9 . As can be best recognized from  FIG. 23 , the fastener  10 . 1  is composed of three components, namely a single part case  20 . 2  forming a housing, a profiled plate  40 . 2  disposed in the interior  21 . 2  of the case, and an eccentric bolt  30  rotary supported in the case. According to  FIG. 26 , the initial section of plate  40 . 2  is subdivided into two tongues  41 ,  42 , wherein a plate cut out  29 . 2  is disposed between the tongues  41 ,  42  and wherein the plate cut out  29 . 2  can be taken from the analogous  FIG. 9 . This plate cut out  29 . 2  serves for forming a canted running leaf spring  28 . 2  in an analogous way as shown in  FIG. 9 . In each case, a hook  45 . 2 ,  46 . 2  is disposed at the outer free end region of the two tongues  41 . 2 ,  42 . 2 , which hooks  45 . 2 ,  46 . 2  are cranked in an opposite sense to each other and project in the assembled case out of the case  40 . 2  (translator&#39;s remark: should be  20 . 2 ) according to  FIG. 20 . 
     In a use situation discussed in a  10 . 1  with its case  40 . 2  (translator&#39;s remark: should be  20 . 2 ) is mounted in the receiver of a profile not shown in detail. The eccentric bolt  30  cooperates with this assembly. The eccentric bolt  30  is furnished with a cam disk  31  disposed in the interior  21 . 1  of the case and with a bolt head  32  projecting from the case  20 . 2 . A rotary stop  85  and the journal  34  follow to the cam disk  31  in the interior  21 . 2  of the case, wherein the journal is here rotary supported in a particular way to be described in the following in more detail in a rear case wall  36 . 2 , which case wall  36 . 2  is generated by the broad sides of the case  20 . 2 . The bolt head  32  has a plug receiver  83  recognizable from  FIG. 23  for a plug tool on the view side, wherein in the use case a rotary actuation  33  of the eccentric bolt  30  indicated in  FIG. 23  can be performed with the plug tool. All this has the following effect. 
     According to  FIG. 26  the eccentric bolt  30  passes through a breakout  89  in the inner section  73 . 2  of the plate  20 . 2  (translator&#39;s remark: should be  40 . 2 ). The cam disk  31  is supported face wise at the inner section  73 . 2 . The already mentioned leaf spring  28 . 2  is seated at the plate inner section  73 . 2 , wherein the leaf spring  28 . 2  is supported at its free end  82  at the inner face  81  of the rear case wall  36 . 2  in an operational situation of  FIG. 7 . The rear case wall  36 . 2  is subjected to spring tension and generates a spring loading in the sense of the force arrow  84  of  FIG. 7  onto the bolt head  32 . The bolt head  22  snaps into a correspondingly dimensioned profile opening after the previously recited mounting in the profile receiver. The spring loading  84  can be designated as a “cross force” relative to the longitudinal shifting direction  86 . The bolt head  32  operates like a “pressure button” based on this cross force  84 . The bolt head  32  has to be pressed backward into the interior of the case like a pressure button in a counter direction to the cross force  84  for the mounting the fastener  10 . 1 , until the bolt head  32  of the fastener  10 . 1  has released the profile opening. Then the fastener  10 . 1  can be pulled out of the profile receiver. 
     The fastener  10 . 1  protrudes with its outer end marked with  49 . 2  in  FIG. 20  out of the profile in the incorporated state of the fastener  10 . 1  in order to therewith be plugged in into an undercut groove of a counter profile not shown in detail. In addition to the two hooks  45 . 2 ,  46 . 2  also two case noses  16 . 1 ,  16 . 2  disposed in the region of the outer end  49 . 2  function here as insertion plug parts. The case noses  16 . 1 ,  16 . 2  are cranked to each other in a mirror image wherein one case nose is generated by extension of the case narrow wall  37 . 2  and the other case nose  16 . 2  is generated by a corresponding extension of the oppositely disposed case narrow wall  38 . 2  as seen in  FIGS. 20 and 24 . 
     The mounted fastener  10 . 1  should take of a holding together between the profile and the counter profile, which holding together is accomplished by a combined spreading and plug in motion of the two end side hooks  45 . 2 ,  46 . 2 . The longitudinal shifting  86  of the plate  40 . 2  shown in  FIGS. 26 and 27  is a trigger therefore. This occurs by the previously mentioned rotary actuation  33  or the eccentric bolt  30 . A pullout position  50 . 1  of the plate  40 . 2  is marked by an auxiliary line in  FIG. 26 . In this case the two in mirror image to each other running hooks  45 . 2 ,  46 . 2  are aligned with the case noses  16 . 1 ,  16 . 2 . This can also be recognized from  FIGS. 21 and 24 . The fastener  10 . 1  mounted in the profile can be plugged into or pulled out of the groove of the counter profile in the pullout position. The cam disk  31  rests with its circumference on an inner and on an outer carrier shoulder  87 ,  88  of the plate  40 . 2 . The carrier shoulders  87 ,  88  are turned toward the recited plate breakout  89  as illustrated in  FIG. 27 . While the outer carrier shoulder  88  is generated by a dent in the plate profile, the inner carrier shoulder is formed by the free leg edge of a backward folded loop  91 . 
     The eccentricity of the cam disk moves the plate  40 . 2  inwardly through the recited rotary actuation  33 . Thus, the recited longitudinal shifting  86  occurs. The plug in position  50 . 2  of the plate  40 . 2  is accomplished after the longitudinal shifting  86  as illustrated by the further auxiliary line in  FIG. 27 . Here a spreading of the two hooks  45 . 2 ,  46 . 2  occurs, wherein the two hooks  45 . 2 ,  46 . 2  are moved cross behind the recited undercut groove wall in the counter profile. This way the holding together between the profile and the counter profile are generated through the fastener  10 . 1 . 
     The spreading of the hook occurs in the course of the longitudinal shifting  86  and is a performed by an interaction between the plate  40 . 2  and the case  20 . 2 . The two tongues  41 . 2 ,  42 . 2  have two bevels  51 . 2 ,  52 . 2  running relative to each other in an opposite sense in the front plate region, wherein the two bevels  51 . 2 ,  52 . 2  springingly support themselves in each case at one of two end flaps  64 . 3 ,  65 . 3  as can be recognized from  FIGS. 20 and 23 . The contact points  55 . 2 ,  56 . 2  recognizable from  FIGS. 20 and 23  of the tongue bevels  51 . 2 ,  52 . 2  occur at the edges of the end flaps  64 . 3 ,  65 . 3 . The previously mentioned spreading of the hooks occurs during the longitudinal shifting  65 , since the contact points  55 . 2 ,  56 . 2  slide along the bevels  51 . 2 ,  52 . 2  having an opposite sense relative to each other. 
     The case  20 . 2  is generated by a multiple bending of a sheet metal blank, wherein the sheet metal blank preferably consists of steel. This way the corner regions of the case  40 . 2  (translator&#39;s remark: should be  20 . 2 ) exhibit a rectangular profile. Abutting sheet metal ends are generated in the sheet metal cutouts through this rectangle folding. The two sheet metal ends  26 . 2 ,  27 . 2  form the front case broad wall  35 . 2  recognizable in  FIG. 23  and have two complementary relative to each other running edges  68 . 2 ,  69 . 2  with an undercut edge profile in the region of the wall middle. A shape matching of the front case broad wall  35 . 2  occurs. The single piece rectangular shaped closed case  20 . 2  is generated in this way. 
     In each case a shoulder  78 . 2  is generated in extension of the two case narrow walls  37 . 2 ,  38 . 2  according to  FIGS. 21 and 24 . The two shoulders  78 . 2  are angled off relative to each other and point with their shoulder ends toward each other as is shown in  FIG. 23 . These shoulders  78 . 2  are in each case furnished with a formed on tappet  92 , wherein the tappet  92  engages in each case in a hole  93  of the neighboring case broad wall  36 . 2  as shown in  FIG. 20 . The angle position of the two shoulders  78 . 2  is thereby stabilized. 
     These shoulders  78 . 2  perform a support function in the plug in position  50 . 2  as seen in  FIG. 27 . The plate  40 . 2  with the end piece of its inner section  73 . 2  supports itself at the upper edge of the angled shoulder  78 . 2  in the plug in position  50 . 2 . The press in motion of the eccentric bolt into the interior  21 . 2  of the case is blocked, since the eccentric bolt  30  with its cam disk  31  rests at the inner section  73 . 2 . The bolt head  32  cannot be pressed in the recited counter direction to its spring loading  84  of  FIG. 26  into the plug in position  15 . 2  (translator&#39;s remark: should be  50 . 2 ) of  FIG. 27 . The recited push button effect of the bolt head  32  is set to be ineffective. The fastener  10 . 1  is thereby secured in its mounted position in the profile. The holding together of profile and counter profile through the fastener  10 . 1  is also thereby completed. 
     One starting position  82 . 1  of the free leaf spring end  28 . 2  is marked by a first auxiliary line in  FIGS. 26 and 27 . This characterizes the position of the leaf spring  28 . 2  in the plug in position  50 . 1 . Also the position of the free spring end  82  is changed during the plate longitudinal shifting  86  as shown in  FIG. 27  and comes to rest in the end position marked with the second auxiliary line  82 . 2 . The spring end  82  slides over the support face region between the two positions  82 . 1 ,  82 . 2  and characterized with  94  in  FIG. 27  during the longitudinal shifting  86 . A ramp  95  is disposed in at least one part piece of this support face region  94  according to the invention, wherein the ramp rises in the direction of the end position  82 . 2 . 
     This ramp  95  is generated by a dent  90  in the case broad wall  35 . 2  in the present case. The dent  90  projects into the interior  21 . 2  of the case and generates the desired ramp  95  with its front flank. The free spring end  82  is disposed still at a distance to the ramp  95  according to  FIG. 26 , wherein the starting position  82 . 1  of the leaf spring  28 . 2  is present. These changes however in the end position  82 . 2  of  FIG. 27 . A contact point  96  results based on the interaction between the inclined running leaf spring  28 . 2  and the ramp  95 , wherein a longitudinally directed longitudinal force  97  effective in the pullout sense is generated on the plate  40 . 2  at the contact point  96 . The free spring end  82  has lifted off from the inner face  81  of the case broad wall  36 . 2  because of the ramp  96  (translator&#39;s remark: should be  95 ), wherein a higher spring force prevails in  FIG. 27  as compared with the pullout position  50 . 1  in  FIG. 26 . The spring end  82  assumes a deeper lying contact position outside of the dent  90  at the wall inner face  81  in the pullout position  50 . 1  where as mentioned the starting position  82 . 1  is present. 
     The previously mentioned longitudinal force  97  becomes effective in the return rotary motion of the bolt head  32  having an opposite sense relative to the rotary motion  33  of  FIG. 23 , where the plate  40 . 2  moves out of its plug in position  50 . 2  of  FIG. 27  in the direction of the pullout position  50 . 1  of  FIG. 26 . A friction is generated at the contact points  55 . 2 ,  56 . 2  between the end flaps  64 . 3  or, respectively,  65 . 3  and the tongue bevels  51 . 2  or, respectively,  52 . 2 , which friction impedes the outward motion and the folding together motion of the associated two hooks  45 . 2 ,  46 . 2 . The previously mentioned longitudinal force  97  between the ramp  95  and the leaf spring  28 . 2  favors this outward motion. The actuation of the eccentric bolt  30  occurs easily according to the invention. 
     The case wall  36 . 2  exhibiting already the ramp generating dent  90 , is furnished with an impression which shows a central breakout  99 . A funnel structure is generated in the case wall  36 . 2  based on the impression  98 , wherein the funnel structure receives and rotary guides the inner end of the journal  34  of the eccentric bolt  30 . 
     The side case walls  37 . 2 ,  38 . 2  are furnished with notches  100  as shown in  FIGS. 21 and 24 , wherein the notches  100  direct into the interior of the housing. One of the notches can also be recognized in  FIG. 26 . Each notch  100  has an apex region  101 , wherein oppositely disposed narrow sides of the plate  20 . 2  in the case interior  21 . 2  support themselves at the apex region  101 . A plate guidance is performed both in the rest position as well as also during the recited longitudinal shifting  86  through this contacting in the apex region  101 . This point wise touching decreases also the friction resistance during the longitudinal shifting  86 . The fastener  10 . 1  according to the invention is easily moving in its rotary actuation  33  also for that reason. 
     LIST OF REFERENCE CHARACTERS 
     
         
           10 . 1  fastener 
           11  profile 
           12  counter profile 
           13  undercut groove at  12   
           14  seat in 11 
           15 . 1  case longitudinal direction of  20 . 1   
           16 . 1  first case nose 
           16 . 2  first case nose 
           17 . 1  second case nose 
           17 . 2  second case nose 
           20 . 1  first case 
           20 . 2  second case 
           20 . 3  third case 
           21 . 1  interior of the case  20 . 1   
           21 . 2  interior of the case  20 . 2   
           22 . 1  first folding of  20 . 1   
           22 . 2  first folding of  20 . 2   
           23 . 1  second folding of  20 . 1   
           23 . 2  second folding of  20 . 2   
           24 . 1  third folding of  20 . 1   
           24 . 2  third folding of  20 . 2   
           25 . 1  fourth folding of  20 . 1   
           25 . 2  fourth folding of  20 . 2   
           26 . 1  first sheet metal end of  20 . 1 , border profile 
           26 . 2  first sheet metal end of  20 . 2 , border profile 
           27 . 1  second sheet metal end of  20 . 1 , border profile 
           27 . 2  second sheet metal and of  20 . 2 , border profile 
           28 . 1  leaf spring of  40 . 1  for  70 . 1  ( FIG. 7 ) 
           28 . 2  leaf spring at  40 . 2  ( FIGS. 26 ,  27 ) 
           29 . 1  plate cut out in  40 . 1  ( FIG. 9 ) 
           29 . 2  plate cut out between  41 . 2 ,  42 . 2  ( FIG. 26 ) 
           30  eccentric bolt 
           31  cam disk of  30   
           32  bolt head of  30  ( FIGS. 1 ,  23 ,  27 ) 
           33  rotary actuation of  30  ( FIGS. 4 ,  23 ) 
           34  journal of  30   
           35 . 1  first broad side of  20 . 1   
           35 . 2  first broad side of  20 . 2   
           36 . 1  second broad side of  20 . 1   
           36 . 2  second broad side of  20 . 2   
           36 . 3  second broad side of  20 . 3  ( FIG. 19 ) 
           37 . 1  first narrow side of  20 . 1   
           37 . 2  first narrow side of  20 . 2   
           37 . 3  first narrow side of  20 . 3  ( FIG. 19 ) 
           38 . 1  second narrow side of  20 . 1   
           38 . 2  second narrow side of  20 . 2   
           38 . 3  second narrow side of  20 . 3  ( FIG. 19 ) 
           39 . 1  inner projection, rotary stop ( FIGS. 1 ,  4 ) 
           40 . 1  plate for  10 . 1   
           40 . 2  plate ( FIGS. 26 ,  27 ) 
           41 . 1  first tongue of  40 . 1   
           41 . 2  first tongue of  40 . 2   
           42 . 1  second tongue of  40 . 1   
           42 . 2  second tongue of  40 . 2   
           43 . 1  third tongue of  40 . 1   
           44 . 1  fourth tongue of  40 . 1   
           45 . 1  first hook at  41 . 1   
           45 . 2  first hook at  41 . 2   
           46 . 1  second hook at  42 . 1   
           46 . 2  second hook at  42 . 2   
           47 . 1  third hook at  43 . 1   
           48 . 1  fourth hook at  44 . 1   
           49 . 1  outer end of  40 . 1   
           49 . 2  outer end at  10 . 2  (translator&#39;s remark: should be  40 . 2 ) 
           50 . 1  pullout position of  40 . 1   
           50 . 2  plug in position of  40 . 1   
           51 . 1  first bevel at  41 . 1   
           51 . 2  bevel at  41 . 2   
           52 . 1  second bevel at  42 . 1   
           52 . 2  bevel at  42 . 2   
           53 . 1  third bevel at  43 . 1   
           54 . 1  fourth bevel at  44 . 1   
           55 . 1  first contact point for  51 . 1   
           55 . 2  first contact point 
           56 . 1  second contact point for  52 . 1   
           56 . 2  second contact point 
           57 . 1  third contact point for  54 . 1   
           58  stretching force ( FIG. 13 ) 
           59  stretching counter force ( FIG. 13 ) 
           60 . 1  sheet metal blank for  20 . 1  ( FIG. 14 ) 
           60 . 2  sheet metal blank for  20 . 2  ( FIG. 18 ) 
           61 . 1  first free cut in  60 . 1   
           61 . 2  first free cut in  60 . 2   
           62 . 1  second free cut in  60 . 1   
           62 . 2  second free cut in  60 . 1  (translator&#39;s remark: should be  60 . 2 ) 
           63 . 1  third free cut in  60 . 1   
           63 . 2  third free cut in  60 . 1  (translator&#39;s remark: should be  60 . 2 ) 
           64 . 1  first end flap at  20 . 1   
           64 . 2  first end flap at  20 . 2   
           64 . 3  end flap at  35 . 2  ( FIG. 23 ) 
           65 . 1  second end flap at  20 . 1   
           65 . 2  second end flap at  20 . 2   
           65 . 3  end flap at  36 . 2  ( FIG. 20 ) 
           66 . 1  third end flap at  20 . 1   
           68 . 1  first edge of  26 . 1 , contour profile ( FIG. 14 ) 
           68 . 2  first edge of  26 . 2 , contour profile ( FIG. 18 ) 
           69 . 1  second edge at  27 . 1 , contour profile ( FIG. 14 ) 
           69 . 2  second edge at  27 . 2 , contour profile ( FIG. 18 ) 
           70 . 1  spring loading of  73 / 30  ( FIG. 3 ) 
           71 . 1  widened head at  68 . 1  or  69 . 1   
           71 . 2  widened head at  68 . 2  or  69 . 2   
           72 . 1  narrowed neck of  68 . 1  or  69 . 1   
           72 . 2  narrowed neck of  68 . 2  or  69 . 2   
           73 . 1  plate inner section of  40 . 1   
           73 . 2  inner section of  20 . 2  ( FIGS. 26 ,  27 ) 
           75  pushbutton press in actuation of  32   
           76 . 1  front case end of  20 . 1   
           76 . 2  front case end of  20 . 2   
           77 . 1  rear case end of  20 . 1   
           77 . 2  rear case end of  20 . 2   
           78 . 1  angling off for support at  37 . 1  and  38 . 1   
           78 . 2  angling off for support at  37 . 2  and  38 . 2   
           78 . 3  angling off of  37 . 3 ,  38 . 3  ( FIG. 19 ) 
           79  second angling off for support at  36 . 3  ( FIG. 19 ) 
           80 . 1  fourth free cut ( FIG. 14 ) 
           81  wall inner face of  36 . 2  ( FIGS. 26 ,  27 ) 
           82  free end of  28 . 2  ( FIGS. 26 ,  27 ) 
           82 . 1  starting position of  82  ( FIGS. 26 ,  27 ) 
           82 . 2  end position of  82  ( FIG. 27 ) 
           83  plug receiver in  32  ( FIG. 23 ) 
           84  force arrow of the spring loading of  32 , cross force to  86  ( FIG. 26 ) 
           85  rotary limit stop at  30  ( FIGS. 24 ,  27 ) 
           86  arrow of the longitudinal shifting of  40 . 2  ( FIGS. 26 ,  27 ) 
           87  inner carrier shoulder between  40 . 2 ,  31  ( FIG. 26 ) 
           88  outer carrier shoulder between  40 . 2 ,  31  ( FIG. 26 ) 
           89  plate breakout in  40 . 2  for  30  ( FIG. 27 ) 
           90  dent in  36 . 2  ( FIGS. 26 ,  27 ) 
           91  end side loop for  87  ( FIGS. 23 ,  27 ) 
           92  tappet at  78 . 2  ( FIGS. 20 ,  21 ,  24 ) 
           93  hole for  92  in  36 . 2  ( FIG. 20 ) 
           94  region of the support face for  82  ( FIG. 27 ) 
           95  ramp in  94  for  28 . 2  ( FIGS. 26 ,  27 ) 
           96  contact point between  28 . 2 ,  95  ( FIG. 27 ) 
           97  longitudinal force acting in the pullout sense of  40 . 2  ( FIG. 27 ) 
           98  impression in  36 . 2  for  34 , funnel structure ( FIGS. 20 ,  27 ) 
           99  central hole in  98   
           100  notch in  37 . 2 ,  38 . 2  ( FIGS. 21 ,  24 ,  26 ) 
           101  apex region of  100  ( FIGS. 21 ,  24 )