CA2222647A1 - Universal, modular guiding rail for printed circuit boards - Google Patents
Universal, modular guiding rail for printed circuit boards Download PDFInfo
- Publication number
- CA2222647A1 CA2222647A1 CA002222647A CA2222647A CA2222647A1 CA 2222647 A1 CA2222647 A1 CA 2222647A1 CA 002222647 A CA002222647 A CA 002222647A CA 2222647 A CA2222647 A CA 2222647A CA 2222647 A1 CA2222647 A1 CA 2222647A1
- Authority
- CA
- Canada
- Prior art keywords
- supporting rail
- groove segment
- fsn
- groove
- rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
- H05K7/1418—Card guides, e.g. grooves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Platform Screen Doors And Railroad Systems (AREA)
- Moving Of Heads (AREA)
Abstract
A guiding rail for holding plug-in modules in a module carrier has a supporting rail (TS) that can be adapted to the length of the plug-in module, two end pieces (K) that have each a coupling area (KP) for joining them to one end (ES) of the supporting rail (TS) and a guiding groove (FN; FN1, FN2, FN3) on their top side to receive the edge of a plug-in module, as well as groove segment-bearing pieces (FSn) that have each on their top side a guiding groove segment (FNn) to receive the edge of a plug-in module and at their bottom snapin elements (KLT1, KLT2, RKT1, RKT2, HNT1, HNT2). The snap-in elements can be locked or plugged upside down onto the supporting rail (TS), so that the guiding grooves in the end pieces (K) and in the intermediate groove segmentbearing pieces (FSn) lie flush with each other. An advantage of this design is that the guiding groove segments and the side walls that form them on the groove segment-bearing parts may be laterally expanded or extended in an unlimited manner to receive thicker printed circuit boards.
Description
Description ~~~ ~
Universal modular guide rail for printed circuit boards DE 36 24 839 C2 disclones a guide rail for printed circuit boards in which a side wall of the guide groove is separated in sections from the base of the groove by means of slots. These free parts of the side wall of the guide groove are each configured as leaf ~pringfi curved in a bell ~hape, in such a way that the width of the guide groove is tapered in each case. These leaf springs curved in a bell shape constrict the guide groove in such a way that not only are printed circuit boards having a very small thickness still guided at both sides, but also it is still possible to push in printed circuit boards having a very large thickness.
A further boundary condition occurring in practice with guide rails is that they must have, if appropriate, different lengths correspo~;ng to the respective depth of a printed circuit board. To date it has been customary and necessary to provide a speci~ically matched, 6eparate type of guide rail for each printed circuit board depth. This has entailed an increa~e in the outlay on components and production and an increase in the cost~.
The invention is based on the object, then, of ~pecifying a universal guide rail for printed circuit boards which can be matched modularly, without a relatively high outlay, to printed circuit boards w~ich may have nGt only a different thickness but also a different edge length or depth.
The o~ject is achieved by meaIls of the guide rail specified in Claim 1. Further advantageous r~finements thereof are specified in the subclaimR.
One advantage of the modular guide rail accordins to the in~ention is manife~t in the fact that, fir~tly, the matching of the length cf the ~lide rai~ to the current edge length of a plug-in a~sembly i~ faciiitated by the capability of latchl.lg or plugging the groove segment parts onto the supporting rail in the manner of a head. To this end, the length of the supporting rail is correspo~;ngly matched to the respective plug-in assembly. Subsequently, groove segment parts are modularly fitted onto the supporting rail until the region on the top side of the supporting rail between the two end pieces is covered as completely as possible with groove segment parts, consequently producing a flush guide groove which is as continuous as possible over the entire length of the edge of the plug-in assembly.
A further advantage is moreover manifest in the fact that the matching of the guide rail to plug-in assemblies of different thicknesses is also considerably assisted by the configuration according to the invention.
By virtue of fitting the groove segment parts onto the supporting rail in the manner of a head, the prime functional importance of the supporting rail is its action purely as a support; the supporting rail in no way constricts the guide groove segments on the top side of the groove segment parts with regard to their cross-sectional extent. In this way, on the one hand, it is possible to fit different groove segment parts which are provided for printed circuit boards of differing thickness with regard to the width of the guide groove segments. On the other hand, however, the two side walls, which bound a guide groove segment on the top side of a groove segment part, are also completely free and can yield laterally, according to their material properties, when a thick printed circuit board i~ introduced into the guide groove.
It i8 particularly advantageous if, in accordance with the configuration disclosed in DE 36 24 839 C2, in the case of a groove segment part, a side wall of the guide groove segment there is separated in sections from the base of the groove by mean~ of a 810t and this free part of the side wall is in each case configured as a leaf spring curved in ~ bell shape, such that the width of the guide gr~ove segme.lt cn the top ~ide of the respective groove segment part is tapered.
The invention is explained further using the examples illustrated in the figures which are referred to briefly below and in which Figure 1 shows a cross-sectional representation of a guide rail according to the invention, the supporting rail of which has, by way of example, a rectangular cross-section and onto which a groove segment part is fitted in the manner of a head,~0 Figure 2 shows a perspective plan view of a preferred embodiment of an end piece and of a supporting rail of the guide rail according to the invention with a groove segment part fitted on by way of example,~5 Figure 3 shows a cross-sectional representation of the preferred embodiment of the guide rail of Figure 2 in the region of the supporting rail, Figure 4 shows a plan view of the coupling region of the end piece of the guide rail of Figure 2, and~0 Figure 5 shows a cross-sectional representation of a further embodiment of the guide rail, the underside, in particular, of the supporting rail having a preferred boat-shaped outer contour which is favourable in terms of flow.
Figure 1 shows a cross-sectional representation of a first embodiment of the guide rail according to the invention, in which the supporting rail TS has, by way of example, a rectangular cross-section. According to the invention, a groove segment part FSn is fitted or latched or plugged onto the supporting rail in the manner of a head. For this purpose, the groove segment part FSn has latching elements starting at its underside. In the example of Figure 1, these latching element~ are embodied in the form of two edge strips RLTl and RLT2, which lead downwards from the sides of the supporting body TR of the groove segment part and have a respective projecting latching edge RRTl, RRT2 at their end. Said latching edges project inward~ in the example of Figure 1 and consequently form, behind them, a respective groove region HNT1, HNT2, into which the rectangular supporting rail TS comes to lie after being latched into place. In the example illustrated, the supporting rail TS is consequently ~hraced by the latching elements RLT1, RLT2. In other designs, one of which will be explained in more detail below with reference to Figures 2 to 4, it is possible to provide grooves on the sides of the supporting rail as well, into which grooves the latching elements of the groove segment part engage. On the other hand, the latching elements may also be a component part of the supporting rail and engage, for example, into webs, grooves and the like located on the underside of the supporting body TK of the groove segment part.
It is crucial that the connection between the groove segment part and the supporting rail take place underneath the supporting body TR of the groove segment part FSn, 80 that the head-like top side of the groove segment part FSn, on which the guide groove segment FSn serving to accommodate the edge of a plug-in assembly is formed, bounded by two side walls SW1, SW2, can be constructed to be completely lln; , cded. The guide groove segment and the side walls forming it are consequently in no way restricted, on account of the configuration according to the invention, with regard to lateral extension or expansion, in particular for the purpose of accommodating printed circuit boards having a relatively large thickness. Thus, in the example of Figure 1, the right-hand side wall SW2 is separated in regions from the base of the groove and constructed like a leaf spring, constricting the guide groove segment FSn in sections. In particular when an especially thick printed circuit board is pushed in, this leaf spring-like region is deformed in such a way that it is forced beyond the right-hand boundary, illustrated in Figure 1, of the ide wall SW2.
Expansions of this type in the tran~verse direction are easily possible on account of the connection according to the invention of the supporting rail and guide grooYe segment by means o~ latching elements Eituated on the underside of the guide groove segment.
A further embodiment of the invention is explained with reference to the perspective plan view of Figure 2. A preferred design of an end piece R of the guide rail according to the invention i8 illustrated there. This is preferably the so-called front end piece of a guide rail, which additionally has encoding ch~hers RR in the case which is illustrated. The said encoding chambers face the printed circuit board to be inserted and can be filled with encoding pins. By this means, it can be ensured that only the printed circuit board intended for an insertion location can actually be pushed completely into the correspo~;ng guide rail. For reasons of clarity, that end piece of the guide rail which is situated at the other end of the supporting rail TS i~
not illustrated. It can advantageously have the same configuration as the front end piece R which is shown, or at least the encoding chambers may be omitted, since the latter are not required on the rear side of a mounting rack.
The front end piece K illustrated in Figure 2 has a coupling region RP for connection to an opposite insertion region ES of a supporting rail TS. Constructed, by way of example, on the top side of the supporting body TR of the end piece R, by means of two laterally bollnAing side walls SW, is a guide groove segment FN for accommodating the edge of a printed circuit board. On the underside of the supporting body TR, there are further securing elements BE, in particular latching hooks and/or guide pins or insertion knobs, which serve to retain the end piece R and hence the entire modular guide rail in correspo~; ng openings or slots of a transverse rail (not illustrated in Figure 1) of a mounting rack.
In the example illustrated in Figure 2, the guide groove is ~plit into three, for example, on the top side of the end piece R. A first region FNl at the end side has introduction bevels for easier introduction of the edge of a plug-in asse~bly. Behind this, there follows a second reyion FN2 of the guide groove, approximately in the centre of the top side of the supporting body. In the case of this second region, perforations for accommodating a contact spring are provided, to replace the side walls, on both sides of the base of the groove.
Such a contact spring is described, for example, in 5 DE 36 24 883 C2 and serves to interconnect the earth potential of the printed circuit board and of the mounting rack. Finally, there is a third region FN3, situated above the coupling region KP, of the guide groove. This third region forms the transition to the guide groove segments FSn on the top sides of the groove segment parts FSn which are latched onto the supporting rail TS.
In the example of Figure 2, by way of example, only a single groove segment part of this type is latched on the supporting rail TS. Normally, the entire top side of the supporting rail, which is matched to the length of the plug-in assemblies to be pushed in in each case, is completely occupied by groove segment parts. In this case, the two end pieces, the supporting rail and the application-dependent nl~her of groove segment parts are coordinated with one another in such a way that the guide groove segments on the individual parts come to lie flush with one another, that is to say without any edges, consequently producing a smooth continuous guide groove from the beg;nning of the front end piece via all of the groove segment parts right up to the rear end piece.
The preferred design of the supporting rail TS
and of the groove segment parts FSn of the guide rail of Figure 2 i8 described in more detail below with reference to a cross-sectional representation in the region of the supporting rail according to Figure 3. In thi~ case, both the groove segment parts FNn and the supporting rail TS
have latch~ng elements, which are shaped approximately inversely with respect to one another and consequently engage into one another in an optimally po itively locking manner.
For this purpose, in Figure 2 the latching elements of the ~upportin~ rail TS a~e e~bo~ied, by Wdy of example, in the form of two edge ~trips RL51, KLS2 which protrude at the top of the supporting rail TS and have projecting, preferably outwardly facing latching edges RRS1, RRS2. As a result, it i8 possible, on the one hand, for the edge strips RLTl, RLT2 of the groove segment parts FSn to engage into the groove regions HNS1, HNS2 formed by the edge strips RLS1, RLS2 of the supporting rail TS, and conversely for the edge strips RLS1, RLS2 of the supporting rail TS to engage into the groove regions HNTl, HNT2 formed by the edge strips RLT1, RLT2 of the groove segment parts FSn. Optimum intermeshing regions VR are consequently produced between the edge strips RLS1, RLS2 of the supporting rail TS and the edge strips RLT1, RLT2 of the groove segment parts FSn.
The guide rail TS advantageously has an approximately u-shaped cross-sectional profile. In the example of Figure 2, this is ensured by a longitudinal slot LS which is preferably expanded in the shape of a drop in the lower region in the centre of the supporting rail. The elasticity of the edge strips RLS1, KLS2 of the supporting rail TS which is also achieved by this means assists the capability of latching on the groove segment parts. According to a further embodiment already illustrated in Figure 3, the underside US, which faces away from the groove segment parts FSn plugged on in the manner of a head, of the supporting rail TS has two roof-shaped bevelled faces AB. As a result, a cooling air stream which serves to cool components on the top sides of the plug-in assemblies and is introduced from the underside US of the guide rail is optimally routed. This is particularly necessary when, given dense population of a mounting rack with plug-in assemblies, a large number of guide rails are arranged closely parallel next to one another.
Figure 4 finally shows a plan view of the coupling region RP of the end piece R of the guide rail of Figure 2. The rear view of the supporting body TR and the l~tching elements BE of the end piece R are illustrated on the left-hand side. The coupling region RP
of the end piece K advantageously has an insertion opening EO which corresponds to the cross-sectional profile of the supporting rail TS and is intended for that end of the supporting rail TS which forms the insertion region ES. This ensures particularly secure retention of the inserted supporting rail TS in the end piece K. That part OT of the coupling region KP of the end piece K which is situated above the insertion opening EO advantageously has a cross-sectional shape which corresponds as far as possible to the groove segment parts FSn. This is the case in the example of Figure 4.
Thus, the end piece also has edge strips which engage in an optimally positive locking manner into the complementary edge strips of the supporting rail. This has the further advantage that the transition between an end piece and a groove segment part is completely free of edges, at the same time avoiding any overhangs. In the example of Figure 4, the support skid AU for the roof-shaped bevelled faces AB on the underside of the supporting rail TS is designed to be particularly robust.
As a result, it is possible to avoid undesired torsion between the two end pieces and the supporting rail.
Additional latching elements (not visible in Figure 4) are advantageously provided in the interior of the coupling region KP of the end pieces R, being for example let into the interior of the support skid AU. The said latching elements either latch in a positively locking manner into correspo~i ng cutouts in the supporting rail TS or rest flat on the outer sides of the supporting rail with the application of an appropriate pressure load. As a result, the retention or clamping between the insertion region ES of a supporting rail TS
and the coupling region KP of an end piece K can be considerably improved.
Finally, Figure 5 shows a further cross-sectional representation through a guide rail TS with a groove segment part FSn fitted on. In this case, the outer sides AB, in particular, on ~he under~ide US of the supporting rail TS are configured to be particularly favourable in terms of flow for a cooling air stream supplied from below. In the example illustrated, the underside has approximately the shape of a boat hull. According to a design which is not illustrated, it may also be V-shaped.
This hull shape is extended upwards on both sides right up to the two downwardly pointing edge strips RLT1, RLT2, 80 that the outer sides, in particular, of the inwardly projecting latching edges RRTl, RRT2 are likewise bevelled downwards.
Universal modular guide rail for printed circuit boards DE 36 24 839 C2 disclones a guide rail for printed circuit boards in which a side wall of the guide groove is separated in sections from the base of the groove by means of slots. These free parts of the side wall of the guide groove are each configured as leaf ~pringfi curved in a bell ~hape, in such a way that the width of the guide groove is tapered in each case. These leaf springs curved in a bell shape constrict the guide groove in such a way that not only are printed circuit boards having a very small thickness still guided at both sides, but also it is still possible to push in printed circuit boards having a very large thickness.
A further boundary condition occurring in practice with guide rails is that they must have, if appropriate, different lengths correspo~;ng to the respective depth of a printed circuit board. To date it has been customary and necessary to provide a speci~ically matched, 6eparate type of guide rail for each printed circuit board depth. This has entailed an increa~e in the outlay on components and production and an increase in the cost~.
The invention is based on the object, then, of ~pecifying a universal guide rail for printed circuit boards which can be matched modularly, without a relatively high outlay, to printed circuit boards w~ich may have nGt only a different thickness but also a different edge length or depth.
The o~ject is achieved by meaIls of the guide rail specified in Claim 1. Further advantageous r~finements thereof are specified in the subclaimR.
One advantage of the modular guide rail accordins to the in~ention is manife~t in the fact that, fir~tly, the matching of the length cf the ~lide rai~ to the current edge length of a plug-in a~sembly i~ faciiitated by the capability of latchl.lg or plugging the groove segment parts onto the supporting rail in the manner of a head. To this end, the length of the supporting rail is correspo~;ngly matched to the respective plug-in assembly. Subsequently, groove segment parts are modularly fitted onto the supporting rail until the region on the top side of the supporting rail between the two end pieces is covered as completely as possible with groove segment parts, consequently producing a flush guide groove which is as continuous as possible over the entire length of the edge of the plug-in assembly.
A further advantage is moreover manifest in the fact that the matching of the guide rail to plug-in assemblies of different thicknesses is also considerably assisted by the configuration according to the invention.
By virtue of fitting the groove segment parts onto the supporting rail in the manner of a head, the prime functional importance of the supporting rail is its action purely as a support; the supporting rail in no way constricts the guide groove segments on the top side of the groove segment parts with regard to their cross-sectional extent. In this way, on the one hand, it is possible to fit different groove segment parts which are provided for printed circuit boards of differing thickness with regard to the width of the guide groove segments. On the other hand, however, the two side walls, which bound a guide groove segment on the top side of a groove segment part, are also completely free and can yield laterally, according to their material properties, when a thick printed circuit board i~ introduced into the guide groove.
It i8 particularly advantageous if, in accordance with the configuration disclosed in DE 36 24 839 C2, in the case of a groove segment part, a side wall of the guide groove segment there is separated in sections from the base of the groove by mean~ of a 810t and this free part of the side wall is in each case configured as a leaf spring curved in ~ bell shape, such that the width of the guide gr~ove segme.lt cn the top ~ide of the respective groove segment part is tapered.
The invention is explained further using the examples illustrated in the figures which are referred to briefly below and in which Figure 1 shows a cross-sectional representation of a guide rail according to the invention, the supporting rail of which has, by way of example, a rectangular cross-section and onto which a groove segment part is fitted in the manner of a head,~0 Figure 2 shows a perspective plan view of a preferred embodiment of an end piece and of a supporting rail of the guide rail according to the invention with a groove segment part fitted on by way of example,~5 Figure 3 shows a cross-sectional representation of the preferred embodiment of the guide rail of Figure 2 in the region of the supporting rail, Figure 4 shows a plan view of the coupling region of the end piece of the guide rail of Figure 2, and~0 Figure 5 shows a cross-sectional representation of a further embodiment of the guide rail, the underside, in particular, of the supporting rail having a preferred boat-shaped outer contour which is favourable in terms of flow.
Figure 1 shows a cross-sectional representation of a first embodiment of the guide rail according to the invention, in which the supporting rail TS has, by way of example, a rectangular cross-section. According to the invention, a groove segment part FSn is fitted or latched or plugged onto the supporting rail in the manner of a head. For this purpose, the groove segment part FSn has latching elements starting at its underside. In the example of Figure 1, these latching element~ are embodied in the form of two edge strips RLTl and RLT2, which lead downwards from the sides of the supporting body TR of the groove segment part and have a respective projecting latching edge RRTl, RRT2 at their end. Said latching edges project inward~ in the example of Figure 1 and consequently form, behind them, a respective groove region HNT1, HNT2, into which the rectangular supporting rail TS comes to lie after being latched into place. In the example illustrated, the supporting rail TS is consequently ~hraced by the latching elements RLT1, RLT2. In other designs, one of which will be explained in more detail below with reference to Figures 2 to 4, it is possible to provide grooves on the sides of the supporting rail as well, into which grooves the latching elements of the groove segment part engage. On the other hand, the latching elements may also be a component part of the supporting rail and engage, for example, into webs, grooves and the like located on the underside of the supporting body TK of the groove segment part.
It is crucial that the connection between the groove segment part and the supporting rail take place underneath the supporting body TR of the groove segment part FSn, 80 that the head-like top side of the groove segment part FSn, on which the guide groove segment FSn serving to accommodate the edge of a plug-in assembly is formed, bounded by two side walls SW1, SW2, can be constructed to be completely lln; , cded. The guide groove segment and the side walls forming it are consequently in no way restricted, on account of the configuration according to the invention, with regard to lateral extension or expansion, in particular for the purpose of accommodating printed circuit boards having a relatively large thickness. Thus, in the example of Figure 1, the right-hand side wall SW2 is separated in regions from the base of the groove and constructed like a leaf spring, constricting the guide groove segment FSn in sections. In particular when an especially thick printed circuit board is pushed in, this leaf spring-like region is deformed in such a way that it is forced beyond the right-hand boundary, illustrated in Figure 1, of the ide wall SW2.
Expansions of this type in the tran~verse direction are easily possible on account of the connection according to the invention of the supporting rail and guide grooYe segment by means o~ latching elements Eituated on the underside of the guide groove segment.
A further embodiment of the invention is explained with reference to the perspective plan view of Figure 2. A preferred design of an end piece R of the guide rail according to the invention i8 illustrated there. This is preferably the so-called front end piece of a guide rail, which additionally has encoding ch~hers RR in the case which is illustrated. The said encoding chambers face the printed circuit board to be inserted and can be filled with encoding pins. By this means, it can be ensured that only the printed circuit board intended for an insertion location can actually be pushed completely into the correspo~;ng guide rail. For reasons of clarity, that end piece of the guide rail which is situated at the other end of the supporting rail TS i~
not illustrated. It can advantageously have the same configuration as the front end piece R which is shown, or at least the encoding chambers may be omitted, since the latter are not required on the rear side of a mounting rack.
The front end piece K illustrated in Figure 2 has a coupling region RP for connection to an opposite insertion region ES of a supporting rail TS. Constructed, by way of example, on the top side of the supporting body TR of the end piece R, by means of two laterally bollnAing side walls SW, is a guide groove segment FN for accommodating the edge of a printed circuit board. On the underside of the supporting body TR, there are further securing elements BE, in particular latching hooks and/or guide pins or insertion knobs, which serve to retain the end piece R and hence the entire modular guide rail in correspo~; ng openings or slots of a transverse rail (not illustrated in Figure 1) of a mounting rack.
In the example illustrated in Figure 2, the guide groove is ~plit into three, for example, on the top side of the end piece R. A first region FNl at the end side has introduction bevels for easier introduction of the edge of a plug-in asse~bly. Behind this, there follows a second reyion FN2 of the guide groove, approximately in the centre of the top side of the supporting body. In the case of this second region, perforations for accommodating a contact spring are provided, to replace the side walls, on both sides of the base of the groove.
Such a contact spring is described, for example, in 5 DE 36 24 883 C2 and serves to interconnect the earth potential of the printed circuit board and of the mounting rack. Finally, there is a third region FN3, situated above the coupling region KP, of the guide groove. This third region forms the transition to the guide groove segments FSn on the top sides of the groove segment parts FSn which are latched onto the supporting rail TS.
In the example of Figure 2, by way of example, only a single groove segment part of this type is latched on the supporting rail TS. Normally, the entire top side of the supporting rail, which is matched to the length of the plug-in assemblies to be pushed in in each case, is completely occupied by groove segment parts. In this case, the two end pieces, the supporting rail and the application-dependent nl~her of groove segment parts are coordinated with one another in such a way that the guide groove segments on the individual parts come to lie flush with one another, that is to say without any edges, consequently producing a smooth continuous guide groove from the beg;nning of the front end piece via all of the groove segment parts right up to the rear end piece.
The preferred design of the supporting rail TS
and of the groove segment parts FSn of the guide rail of Figure 2 i8 described in more detail below with reference to a cross-sectional representation in the region of the supporting rail according to Figure 3. In thi~ case, both the groove segment parts FNn and the supporting rail TS
have latch~ng elements, which are shaped approximately inversely with respect to one another and consequently engage into one another in an optimally po itively locking manner.
For this purpose, in Figure 2 the latching elements of the ~upportin~ rail TS a~e e~bo~ied, by Wdy of example, in the form of two edge ~trips RL51, KLS2 which protrude at the top of the supporting rail TS and have projecting, preferably outwardly facing latching edges RRS1, RRS2. As a result, it i8 possible, on the one hand, for the edge strips RLTl, RLT2 of the groove segment parts FSn to engage into the groove regions HNS1, HNS2 formed by the edge strips RLS1, RLS2 of the supporting rail TS, and conversely for the edge strips RLS1, RLS2 of the supporting rail TS to engage into the groove regions HNTl, HNT2 formed by the edge strips RLT1, RLT2 of the groove segment parts FSn. Optimum intermeshing regions VR are consequently produced between the edge strips RLS1, RLS2 of the supporting rail TS and the edge strips RLT1, RLT2 of the groove segment parts FSn.
The guide rail TS advantageously has an approximately u-shaped cross-sectional profile. In the example of Figure 2, this is ensured by a longitudinal slot LS which is preferably expanded in the shape of a drop in the lower region in the centre of the supporting rail. The elasticity of the edge strips RLS1, KLS2 of the supporting rail TS which is also achieved by this means assists the capability of latching on the groove segment parts. According to a further embodiment already illustrated in Figure 3, the underside US, which faces away from the groove segment parts FSn plugged on in the manner of a head, of the supporting rail TS has two roof-shaped bevelled faces AB. As a result, a cooling air stream which serves to cool components on the top sides of the plug-in assemblies and is introduced from the underside US of the guide rail is optimally routed. This is particularly necessary when, given dense population of a mounting rack with plug-in assemblies, a large number of guide rails are arranged closely parallel next to one another.
Figure 4 finally shows a plan view of the coupling region RP of the end piece R of the guide rail of Figure 2. The rear view of the supporting body TR and the l~tching elements BE of the end piece R are illustrated on the left-hand side. The coupling region RP
of the end piece K advantageously has an insertion opening EO which corresponds to the cross-sectional profile of the supporting rail TS and is intended for that end of the supporting rail TS which forms the insertion region ES. This ensures particularly secure retention of the inserted supporting rail TS in the end piece K. That part OT of the coupling region KP of the end piece K which is situated above the insertion opening EO advantageously has a cross-sectional shape which corresponds as far as possible to the groove segment parts FSn. This is the case in the example of Figure 4.
Thus, the end piece also has edge strips which engage in an optimally positive locking manner into the complementary edge strips of the supporting rail. This has the further advantage that the transition between an end piece and a groove segment part is completely free of edges, at the same time avoiding any overhangs. In the example of Figure 4, the support skid AU for the roof-shaped bevelled faces AB on the underside of the supporting rail TS is designed to be particularly robust.
As a result, it is possible to avoid undesired torsion between the two end pieces and the supporting rail.
Additional latching elements (not visible in Figure 4) are advantageously provided in the interior of the coupling region KP of the end pieces R, being for example let into the interior of the support skid AU. The said latching elements either latch in a positively locking manner into correspo~i ng cutouts in the supporting rail TS or rest flat on the outer sides of the supporting rail with the application of an appropriate pressure load. As a result, the retention or clamping between the insertion region ES of a supporting rail TS
and the coupling region KP of an end piece K can be considerably improved.
Finally, Figure 5 shows a further cross-sectional representation through a guide rail TS with a groove segment part FSn fitted on. In this case, the outer sides AB, in particular, on ~he under~ide US of the supporting rail TS are configured to be particularly favourable in terms of flow for a cooling air stream supplied from below. In the example illustrated, the underside has approximately the shape of a boat hull. According to a design which is not illustrated, it may also be V-shaped.
This hull shape is extended upwards on both sides right up to the two downwardly pointing edge strips RLT1, RLT2, 80 that the outer sides, in particular, of the inwardly projecting latching edges RRTl, RRT2 are likewise bevelled downwards.
Claims (10)
1. Guide rail for retaining plug-in assemblies in a mounting rack, having a) a supporting rail (TS) which can be matched to the length of the respective plug-in assembly, b) two end pieces (K) which each have a coupling region (KP) for connection to one end (ES) of the supporting rail (TS), and each have, on the top side, a guide groove (FN; FN1, FN2, FN3) for accommodating the edge of a plug-in assembly, and having c) groove segment parts (FSn) which each have, on the top side, a guide groove segment (FNn) for accommodating the edge of a plug-in assembly and, on the underside, latching elements (KLT1, KLT2, RKT1, RKT2, HNT1, HNT2), by means of which the said groove segment parts can be latched to, or plugged onto, the supporting rail (TS) in the manner of a head in such a way that the guide grooves of the end pieces (K) and of the groove segment parts (FSn) fitted on in between are flush.
2. Device according to Claim 1, the groove segment parts (FSn) each containing a) a head-like supporting body (TK) with the associated groove segment part (FSn), and b) latching elements for fixing on the supporting rail (TS), in the form of two edge strips (KLT1, KLT2) which protrude at the underside of the supporting body (TK) and have projecting latching edges (RKT1, RKT2) which preferably face inwards and engage around the supporting rail (TS) or engage into corresponding groove regions (HNT1, HNT2) of the supporting rail (TS).
3. Device according to Claim 1, the supporting rail (TS) having latching elements (KLS1, KLS2, RKS1, RKS2, HNS1, HNS2) which have an approximately inverse shape with respect to the latching elements of the groove segment parts (FNn).
4. Device according to Claims 2 and 3, a) the latching elements of the supporting rail (TS) being designed in the form of two edge strips (KLS1, KLS2) which protrude at the top of the supporting rail (TS) and have projecting latching edges (RRS1, RKS2) which preferably face outwards, b) the edge strips (KLT1, KLT2) of the groove segment parts (FSn) engaging into the groove regions (HNS1, HNS2) formed by the edge strips (KLS1, KLS2) of the supporting rail (TS), and c) the edge strips (KLS1, KLS2) of the supporting rail (TS) engaging into the groove regions (HNT1, HNT2) formed by the edge strips (KLT1, KLT2) of the groove segment parts (FSn).
5. Device according to one of the preceding claims, the guide rail (TS) having an approximately u- or v-shaped cross-sectional profile.
6. Device according to one of the preceding claims, the underside (US) of the supporting rail (TS) having an approximately boat-shaped outer contour (Figure 5).
7. Device according to one of the preceding claims, a region of one (SW2) of the side walls which form the guide groove segment (FNn) of a groove segment part (FSn) being separated from the base of the groove and shaped like a leaf spring curved in a bell shape, forming an elastic constriction of the width of the guide groove segment (FNn).
8. Device according to one of the preceding claims, a coupling region (KP) of the end pieces (K) having an insertion opening (EO) which corresponds to the cross-sectional profile of the supporting rail (TS) and is intended for a part, which forms an insertion region (ES), of the supporting rail (TS).
9. Device according to Claim 8, that part (OT) of the coupling region (KP) of an end piece (K) which is situated above the insertion opening (EO) having a cross-sectional shape which approximately corresponds to a groove segment part (FSn).
10. Device according to one of the preceding claims, the underside (US), which faces away from the groove segment parts (FSn) plugged on in the manner of a head, of the supporting rail (TS) having two roof-shaped bevelled faces (AB).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29508853.2 | 1995-05-29 | ||
| DE29508853U DE29508853U1 (en) | 1995-05-29 | 1995-05-29 | Universal, modular guide rail for printed circuit boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2222647A1 true CA2222647A1 (en) | 1996-12-05 |
Family
ID=8008682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002222647A Abandoned CA2222647A1 (en) | 1995-05-29 | 1995-08-16 | Universal, modular guiding rail for printed circuit boards |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0829189B1 (en) |
| JP (1) | JPH11505964A (en) |
| KR (1) | KR19990022037A (en) |
| CN (1) | CN1186590A (en) |
| AT (1) | ATE176372T1 (en) |
| CA (1) | CA2222647A1 (en) |
| CZ (1) | CZ288783B6 (en) |
| DE (2) | DE29508853U1 (en) |
| ES (1) | ES2128072T3 (en) |
| HU (1) | HUT77986A (en) |
| IN (1) | IN184997B (en) |
| RU (1) | RU2146857C1 (en) |
| SK (1) | SK280105B6 (en) |
| WO (1) | WO1996039013A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59910860D1 (en) | 1998-11-09 | 2004-11-18 | Rittal Electronic Systems Gmbh | ASSEMBLY SYSTEM FOR ELECTRIC FLAT ASSEMBLIES WITH CENTERING CONTACT PARTS ON FRONT ELEMENTS AND SEPARATE RECESSING CONTACT PARTS, ESPECIALLY WITH CONTACT KNIVES IN THE ASSEMBLY CARRIER |
| CN106582008B (en) * | 2016-12-01 | 2020-07-17 | 嘉兴市立特电子科技有限公司 | Virtual reality sightseeing formula bamboo raft experiences equipment |
| DE102020200784A1 (en) * | 2020-01-23 | 2021-01-07 | Sivantos Pte. Ltd. | Electronics frame for a hearing instrument |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1053352A (en) * | 1900-01-01 | |||
| BE794849A (en) * | 1972-02-08 | 1973-05-29 | Elco Corp | PRINTED CIRCUIT PLATE |
| DE2320909A1 (en) * | 1973-04-25 | 1974-11-07 | Siemens Ag | SUPPORTING FRAME FOR ACCOMMODATION OF FLAT ASSEMBLIES |
| DE2648661B2 (en) * | 1976-10-27 | 1978-11-09 | Willi 4044 Kaarst Beyerle | Holding device for printed circuit boards or the like that can be provided with a plug. Components of electromechanical components |
| DE7703581U1 (en) * | 1977-02-08 | 1977-05-12 | Schroff & Co Gesellschaft Fuer Messtechnik Mbh, 7541 Straubenhardt | Set of components for guide rails |
| DE3624883A1 (en) * | 1986-07-23 | 1988-01-28 | Siemens Ag | Contact spring |
| DE3624839A1 (en) * | 1986-07-23 | 1988-01-28 | Siemens Ag | Guide rail |
| US5001606A (en) * | 1989-09-12 | 1991-03-19 | Honeywell Inc. | Circuit board programmer |
| DE4210466C1 (en) * | 1992-02-26 | 1993-06-03 | Rittal-Werk Rudolf Loh Gmbh & Co Kg, 6348 Herborn, De | Electrical circuit module carrier frame adaptable for different circuit boards - uses spacer blocks fitted at variable height to allow different circuit board sizes to be employed |
-
1995
- 1995-05-29 DE DE29508853U patent/DE29508853U1/en not_active Expired - Lifetime
- 1995-08-16 RU RU97122079A patent/RU2146857C1/en active
- 1995-08-16 SK SK1623-97A patent/SK280105B6/en unknown
- 1995-08-16 DE DE59505013T patent/DE59505013D1/en not_active Expired - Lifetime
- 1995-08-16 EP EP95928429A patent/EP0829189B1/en not_active Expired - Lifetime
- 1995-08-16 CZ CZ19973773A patent/CZ288783B6/en not_active IP Right Cessation
- 1995-08-16 KR KR1019970708516A patent/KR19990022037A/en active IP Right Grant
- 1995-08-16 JP JP8536075A patent/JPH11505964A/en not_active Ceased
- 1995-08-16 CA CA002222647A patent/CA2222647A1/en not_active Abandoned
- 1995-08-16 HU HU9802743A patent/HUT77986A/en unknown
- 1995-08-16 AT AT95928429T patent/ATE176372T1/en not_active IP Right Cessation
- 1995-08-16 WO PCT/DE1995/001075 patent/WO1996039013A1/en active IP Right Grant
- 1995-08-16 CN CN95197889A patent/CN1186590A/en active Pending
- 1995-08-16 ES ES95928429T patent/ES2128072T3/en not_active Expired - Lifetime
-
1996
- 1996-02-23 IN IN329CA1996 patent/IN184997B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0829189A1 (en) | 1998-03-18 |
| EP0829189B1 (en) | 1999-01-27 |
| CN1186590A (en) | 1998-07-01 |
| RU2146857C1 (en) | 2000-03-20 |
| DE59505013D1 (en) | 1999-03-11 |
| KR19990022037A (en) | 1999-03-25 |
| WO1996039013A1 (en) | 1996-12-05 |
| ES2128072T3 (en) | 1999-05-01 |
| HUT77986A (en) | 1999-03-29 |
| JPH11505964A (en) | 1999-05-25 |
| CZ377397A3 (en) | 1998-03-18 |
| ATE176372T1 (en) | 1999-02-15 |
| IN184997B (en) | 2000-10-21 |
| CZ288783B6 (en) | 2001-08-15 |
| DE29508853U1 (en) | 1996-07-04 |
| SK162397A3 (en) | 1998-05-06 |
| SK280105B6 (en) | 1999-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |