DE20305347U1 - Button carrier frame used during lacquering process has plastics strips building up support for buttons and includes grooves in rectangular array - Google Patents

Abstract

The rectangular frame (20) may have a length of 530 mm and a width of 350 mm. It includes 12 rectangular button fields (12) with a length of 165 mm and a width of 75 mm. There are fastening members (16,16a) along the short edges of the button fields. The long edges are devoid of fastenings. The edges of the button fields (21) are at right-angles to each other. Each individual button has straight short and long edges (14,14a,18) of buttons and rounded corners.

Description

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Carrying device for molded parts to be painted

The invention relates to a carrying device for molded parts to be painted during the painting process, in particular a carrying device for keyboards including accessories made of plastic.

The painting process for such keyboard systems must be increasingly simplified and automated for cost reasons. A major delaying element is the painting process, which is usually automated in a spray machine. For this purpose, it would be desirable to have devices that can be easily loaded with the molded parts to be painted and guided through the corresponding spray device.

In view of this fact, the inventor has set himself the goal of creating such a carrying device, the parts of which can be manufactured easily and inexpensively and can be easily assembled to form the carrying device.

The teaching of the independent claim leads to the solution of this problem; the subclaims indicate advantageous further developments. In addition, all combinations of at least two of the features disclosed in the description, the drawing and/or the claims fall within the scope of the invention.

According to the invention, a grid-like support surface is formed in a support frame by strip-like components; the molded parts to be painted are inserted or placed on this and/or in the support elements associated with it -- as well as inserted into it. For this purpose, it has proven advantageous to design the strip-like components as support webs with edge cuts and to insert support webs crossing them into them in such a way that the head or outer surfaces are each flat and the support webs are not perforated.

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roughly aligned with one another -- determine a common plane as the supporting surface. This head or outer surface of the supporting web should preferably be formed by a web edge on the ridge edge of the supporting web that surrounds its strip-like web body -- and projects beyond its surfaces on both sides.

According to a further feature of the invention, the deepest of the edge cuts extending from the upper longitudinal edge of the support web in the installed position should run approximately along the center line or longitudinal axis of the support web; a trough-like indentation should then advantageously be introduced into at least one edge of the edge cut to accommodate a corresponding nose of the crossing support web in order to ensure a clamping hold. Preferably, two indentations approximately opposite one another are provided in the edge cut, in particular near the head or outer surface, i.e. at a greater distance from the deepest indentation.

According to the invention, the edge cuts should divide the supporting web into fields which are surrounded by a web edge protruding from its plane. The supporting web and its edge cuts should also be surrounded by the web edge, which is supplemented by an axial strip between the edge cut and the opposite part of the web edge in such a way that a roughly Y-shaped shape is created on the surface of the corresponding field. For the weight and stability of the supporting web, it is sensible to arrange an opening in the web body of those fields - at least partially - which offers in particular a roughly rectangular or diamond-shaped contour.

It has proven to be advantageous that at least one nose or similar formation protrudes from the axial strip of the support web, which fits into one of the above-mentioned lateral indentations of a cut edge of the band receiving the axial strip in a cut of the...arwdajren...support web.

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and thus ensures that these parts fit securely.

In order to create a connection between the vertical front edges of adjacent grid webs that are aligned, according to a further feature of the invention, at least one channel profile is to be formed from the front edge, which opens laterally, the channel leg of which delimits the channel space on one surface, thus crossing the longitudinal axis of the grid web and is inserted into the oppositely opening channel profile of the adjacent grid web. Advantageously, its front section should now offer two oppositely open channel profile sections, each of which extends over half the height of the front section and preferably starts from a recess in the middle of the height of the front edge; thanks to this design and the requirement that the correspondingly arranged channel profiles at both ends of the grid web are provided in opposite directions to each other, a simple connection of the grid webs at their front ends is possible without any effort.

It is within the scope of the invention that a support body for a key insert to be painted is inserted into a grid compartment delimited by -- preferably four -- intersecting support webs arranged in a grid-like manner; this support body should preferably consist of a wall base and a ridge plate.

The ridge plate contains a cutout to accommodate the key insert.

Furthermore, according to the invention, two support frames with a grid-like support surface can be detachably connected by spacers and these can be inserted at both ends into a grid compartment of a support frame with a grid-like support surface. This spacer preferably has two support plates connected by at least one column-like device, each of which is provided with moldings such as plugs .

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The latter should be designed as pins protruding from the surface of the support plate and diagonal webs connected to these; the outer distance between the plate-side ends of the outer edges of two aligned diagonal webs should correspond approximately to the diagonal length of a grid compartment in order to be able to be clamped into place in this.

It has proven to be advantageous to form a diagonal web onto the corner edges of the wall base of the supporting body that can be inserted into the grid compartment; this should have an end edge that slopes downwards towards the corner edge and ends at about half the height of the wall, thus leaving the lower edge area free.

In addition, at least one cantilever bracket should protrude from two parallel side walls of the wall base, preferably a pair of such cantilever brackets; these -- possibly tapering longitudinally towards their free ends
The cantilever bracket projects laterally beyond the side edge of the ridge plate, which advantageously has corner tongues protruding from its side edges, the cantilever size of which corresponds approximately to that of the cantilever brackets mentioned. Each of these corner tongues should rest on one of the diagonal webs. In one design, it is also planned to form an indentation in the side edges of the ridge plate next to the corner tongue.

According to another feature of the invention, a longitudinal slot and/or a step-like edge formation extends from at least one edge of the rectangular opening in the ridge plate. In addition, the plate opening can be at least partially surrounded by a collar in which recesses and/or projections are arranged, which can be seen in plan view, for receiving counter-elements. The latter are, for example, parts of key inserts or similar attachment elements to be inserted into the plate opening.

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According to the invention, bracket formations and/or counter hooks are attached to the collar; the bracket formations should preferably have a V-shaped ridge surface. In addition, it has proven to be advantageous to have support columns protrude from the ridge plate as connecting elements for a button insert or similar attachment element. These step-like edge formations, the collar and the support column(s) protrude from the outer surface of the ridge plate.

It is within the scope of the invention that the opening in the ridge plate is penetrated by a base tube of a key insert, the key plate of which spans the collar of the ridge plate at a distance; the key plate of the key insert should offer a desk surface for the user's finger that is inclined towards the ridge plate. According to the invention, a side edge of the key plate should also run at an angle to the edges of the ridge plate.

Preferably, a U-shaped opening is inserted into at least one side wall of the base tube with a rectangular cross-section, the legs of which are directed away from the key plate; from an inner field delimited by the legs of the opening, protrude on these legs
triangular ribs.

In another embodiment, a wall part of a base frame of a key plate is assigned to the console formations; internal ribs are preferably attached to the base frame or its wall part, which are inserted into corresponding slots in the ridge plate.

According to the invention, four of these pins are arranged close to a central opening in the support plate, and from each of the pins there extends a diagonal web -- having an inclined outer edge -- which is directed towards a corner region of the support plate; in the operating position, this rests on the grid webs delimiting the grid hole.

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The two support plates are connected by a column with a cross-shaped cross-section. In addition, the column should be detachably connected to the support plates and/or adjustable in length for better handling.

Overall, this results in a very easy-to-use system for specifying keyboard elements to be painted.

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Further advantages, features and details of the invention emerge from the following description of preferred embodiments and from the drawing, which shows in:

Fig. 1: the top view of a group of keyboard panels or groups of keypads in a supporting frame;

Fig. 2: a grid-shaped painting carrier for keyboard plates in plan view;

Fig. 3, 4: each a side view of wall strips of the painting carrier;

Fig. 5: the longitudinal section through Fig. 4 along the line V-V;

Fig. 6: an enlarged detail of Fig. 4 according to panel VI;

Fig. 7, 8: each a cross-section through Fig. 4 along the line VII-VII and VIII-VIII respectively;

Fig. 9: an enlarged section of Fig. 8 in a different position of use;

Fig. 10,19,

25: a plan view of a support body for use in the grid-shaped painting carrier;

Fig. 11: the section through Fig. 10 along the line XI-XI;

Fig. 12: a side view of Fig. 10 after de-... _# .... rei«^ &Bgr;&xgr;&thgr;.&iacgr;&Lgr;X»5Ij>;;···;

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Fig. 13,14: Oblique views of the supporting body and of a ridge plate placed on a wall base of the supporting body;

Fig. 15: the top view of a wall base of the supporting body;

Fig. 16,17: Sections through Fig. 15 along line XVI-XVI and XVII-XVII respectively;

Fig. 18: a side view of the wall base of Fig. 15 according to arrow XVIII;

Fig. 20: an oblique view of a ridge plate of the supporting body of Fig. 19;

Fig. 21,23: Side views of the support body of Fig. 19;

Fig. 22,24: Sections through the supporting body of Fig. 19 along the line XXII-XXII and XXIV-XXIV respectively;

Fig. 26: a side view of Fig. 25;

Fig. 27,29: a section through Fig. 25 along the line XXVII-XXVII and XXIX-XXIX respectively;

Fig. 28,30: an enlarged detail from Fig. 27 and 29 respectively according to field XXVIII and XXX;

Fig. 31,32: two oblique views of the ridge plate of Fig. 25;

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Fig. 33: a partially sectioned side view of a spacer for two painting carriers held at a distance from each other;

Fig. 34: the top view of the spacer with only an indicated paint carrier;

Fig. 35: the section through Fig. 33 along the line XXXV-XXXV.

In order to be able to guide the keypads or keypad plates 10 made of plastic indicated at 10 through a spray device (not shown in the drawing) in a favorable manner during a painting process, these are placed in a
also made of plastic -- support frame 20 made of frame sides 21 that are at right angles to one another. The support frame 20 has a clear length a of about 530 mm and a clear width b of 350 mm in Fig. 1 for a group 12 of twelve keyboard plates 10 with a length ai of about 165 mm and a width bi of about 75 mm. These keyboard plates 10 with a rectangular outline are held together in a plane by means of longitudinally U-shaped plug-in projections 16, 16 _a that protrude from their transverse edges 14, 14 _a ; a plug-in projection 16 is formed in the middle of each of the transverse edges 14, which is inserted between two plug-in projections 16 _{a of} the other transverse edge 14 _{a of} the adjacent keyboard plate 10 when the group 12 is joined together. The longitudinal edges 18 of the keyboard plates 10 do not have any plug-in projections in the selected example.

In the frame 20 of Fig. 2, supporting or grid webs 22, _22q delimiting intersecting grid compartments 19 in a square plan view run, and the keyboard plates 10 and 10a are -- depending on their dimensions -- divided into several

Grids 22.. auJigeLagt.. ..Ctie..i;s.. lio.kien ..©Joesesi Eck sketch- ... » . . . .... .· · ....

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decorated keyboard plate 10 crosses three longitudinal webs 22 and one transverse web 22 _q , and it is flanked by two transverse webs 22 _q . Two groups 12 of six -- that is, three pairs of -- key fields or keyboard plates 10 _a indicated in the lower part of the support frame 20 of Fig. 2 each run between two transverse webs 22 _q and cover two further transverse webs 22 _q in between; the eleventh longitudinal web 22 lies here outside the parallel adjacent transverse edges 14 _a of four keyboard plates 10 _a .

Fig. 3 shows a grid web 22 with a length f of about 350 mm and a height h of 30 mm; its web body 23 with a thickness e of 1.5 mm is surrounded by a web edge 24 with a width ei of 4 mm and a height or width hi of 2 mm -- projecting beyond this on both sides as shown in Fig. 7 -- and is divided by edge cuts 32 -- starting from the upper longitudinal edge 30 of the grid web 22 -- into fields 26 with a length f _L of 50 mm and two end fields 28 with a length f ₂ of 24 mm. For the sake of a better overview, the lower longitudinal edge of the grid web 22 is designated 30 _t .

The center line M of the grid web 22 is a straight line of symmetry for a window-like opening 27 or 29 in the fields 26 or the end fields 28. The openings 27 with a length fß of 30 mm and a height h ₃ of 15 mm are approximately rectangular, the openings 29 with a length f ₄ of approximately 16 mm are almost diamond-shaped.

Each edge incision 32 of width g of 4 mm ends -- as is particularly clear from Fig. 6 -- at the center line M, ie its length h ₂ of 15 mm corresponds to half the height h of the grid web 22. The edge incision 32 is also surrounded by the web edge 24, to which an axial strip 36 of width hi adjoins below the deepest incision 33 and forms a kind of Y-shape with the web edge 24. A nose 38 protrudes from this strip 36 on both sides above the bottom edge 24 of the web. Near the upper edge of the web 24 ..eiad in the&..para.lJtelen. Rail sections of the

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Groove-like indentations 40 with a flat pitch circle contour of depth i of 0.6 mm are provided on the incision edges 34. These result in an outer step 24 _S in the web edge 24, the width I ₁ of which corresponds to that depth i.

The intersecting grid webs 22, 22 _q are inserted into one another in the area of their edge cuts 32, as can be seen in Fig. 9. The cut edges 34 of one grid web 22 or 22 _q slide on the axial strip 36 of the other grid web 22 _q or 22 until the noses 38 of the former snap into the lateral recesses 40 of the corresponding edge cut 32 of the other grid web 22 _q or 22; then all the head or outer surfaces 25 of the adjacent web edges 24 or the longitudinal edges 30 running along the top are aligned with one another so that a common supporting or bearing plane E is created.

In Fig. 3, at the right end of the grid web 22, a further embodiment is designated as grid web 22 _a . The opening 29 _a of the end field 28 _a is almost rectangular here, and on the vertical front section 24 _n of the web edge 24, on both sides of a centrally placed recess 42, channel profiles 4 4 which run in opposite cross sections to one another are formed; these interlock in pairs during assembly; one grid web 22 _a is guided along the center line M of the other grid web 22 _a - at right angles to the latter - until the channel legs 46 of one grid web 22 _a lie in the plane of the channel spaces of the other grid web 22 _a . Both grid webs 22 _a are then rotated about the center line M so that the adjacent gutter profiles 44 interlock and thus position both grid webs 22 _a flush with each other.

In order to be able to connect smaller objects to the support frame 20, support bodies 50 are inserted into the latter's lattice structure, one of which is sketched in Fig. 10 to 14. Two paraJ.J.Qj,e S ej.t apply. 5.2.. dej; .Length si .from here 40

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mm and the height k of 28.5 mm are equipped near their upper edge with cantilever brackets 56 which protrude from two parallel side walls 52 at a center distance n ₂ of 14 mm. The latter are connected by a pair of side walls 52 _a of corresponding shape and form with them a wall base 51. The design of this is illustrated above all in Fig. 15 to 18; the angle dimensions given in the drawing are in the remaining part of the description disclosure.

Diagonal webs 54 of thickness ζ of 2 mm and half the wall height k run on the outside of the corner edges 53 of the wall base 51, which determine an external distance dimension ni of approximately 4-6 mm and each abut with its upper edge 55 against a corner tongue 58 of an approximately square ridge plate 60 of the supporting body 50; the outline of the latter corresponds to that of the wall base 51, and the corner tongues 58, which look like drops when viewed from above, protrude diagonally from their corners. The free lower edge 54 _t of the diagonal web 54 is also inclined downwards towards the corner edge 53 at an angle of approximately 45°.

The ridge plate 60 with a thickness i ₂ of 2 mm surrounds a square plate opening 62 in a frame-like manner. A narrow longitudinal slot 64 extends from one of its edges 63, and a step-like edge formation 65 with a width b ₂ is provided on two edges 63 assigned to the side walls 52 with the support brackets 56.

The supporting body 50a _of Fig. 19 to 24 also has a square plan and has four side walls 52, _52a , of which the wall pair 52 is provided with the outwardly projecting cantilever brackets 56.

The plate opening 62 of the ridge plate 60 _a is surrounded on its upper or outer surface 57 by a collar 66 which protrudes from this _and has a height of about 4 mm -- with respect to the plate opening.5., 62 ..aagewform.teii.. EiB.-. b&w.. bulges

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67 or 67 _a as well as incisions at collar height

68 --, the contour of which is designed in such a way that it can accommodate and hold a key insert 70 to be sprayed, consisting of a base tube 77 -- formed by four side walls 72, _72a -- and a key plate 74 formed on the base tube 77 with a desk surface 75 that may be inclined diagonally at an angle w of more than 90° to the longitudinal axis A of the insert. As can be seen in Fig. 19, two side edges _76a are set at different angles to the other parallel side edges 76.

The maximum height i ₄ of the unit made up of the ridge plate 60 _a and the key insert 70 with its inclined desk surface 75 above the side walls 52, 52 _a measures 16 mm here, the radial distance c between the collar 66 and the key insert 70 is less than 0.2 mm. In a parallel pair of side walls 72 there are openings 73 -- as shown in Fig. 22: with U-shaped outlines and downward-pointing legs. Narrow triangular ribs 73 _b protrude from the tongue-like inner field 73 _a on the opening legs; their triangular longitudinal section runs parallel to the longitudinal axis A.

The ridge plate 60 _b of the support body 50 _b of Fig. 25 to 32 is provided with indentations 59 on two opposite edges 61 - near the corner tongues 58 - and is equipped near these with four pin-like support columns 78 - tapering towards the end - and with a collar 66 _b with indentation 67 surrounding its plate opening 62; a key insert 80 is placed on the latter, which sits on bracket formations 69 of the collar 66 _b with wall parts 84 of a base frame 83 formed on its key plate 82 and having inner ribs 85 according to Fig. 30. These bracket formations 69 offer a V-shaped longitudinal section to accommodate the wall parts 84 towards the ridge. This key plate 82 is also equipped with two side edges 76 _a# which are set at different angles to the other parallel side edges 76 „. V,pr .aJUem..F.ig . 25. allows

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know that the key plate 82 in plan view and longitudinal extension runs obliquely to the ridge plate 60 _b .

The gap distance ei between collar 66 _b and wall part 84 is here 0.1 mm. Crosswise thereto, hook formations 86 of the key insert 80 engage behind counter hooks 69 _b of the collar 66 _b with an overlap dimension C2 of 0.15 mm (Fig. 28).

Fig. 33 to 35 show a spacer 90, also made of plastic. This holds two parallel support frames 20, only indicated in Fig. 33, 34, with the intersecting grid webs 22, _22a at a distance y of 60 mm from each other and has two support plates 92, held at a distance from each other by a cross-sectionally cross-shaped connecting column 88, with a square base plan and side length q of 54 mm here; the corner areas of the support plates 92 are rounded in plan view. Diagonal webs 94 with a height y _x of 20 mm protrude from the outer surfaces 93 of the support plate 92, each with an outer edge 95 inclined to the longitudinal axis B of the holder. Each diagonal web 94 is formed on a pin 96 on the axis, and the four pins 96 are formed on the support plate 92 near a central opening 98. The outer distance between the plate-side ends of the outer edges 95 of two aligned diagonal webs 94 corresponds to the diagonal length d of a grid compartment 19 shown in Fig. 1; when the support frames 20 are attached, the diagonal webs 94 described engage in the grid compartments 19 formed by the grid webs 22, 22 _a , 22 _q of the support frame 20, as is indicated in Fig. 34.

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Claims (48)

1. Support device for molded parts to be _painted during the painting process, in particular for keyboards including accessories made of plastic, characterized in that a grid-like support surface is formed in a support frame ( 20 ) by strip-like components ( 22 , 22a , 22q _{) ,} and this and/or support members ( 50 , 50a _, 50b , 90 ) associated with it hold/hold the molded parts ( 10 _, 10a ; 70 , 80 ) to be painted. 2. Support device according to claim 1, characterized in that the strip-like components support webs (22, 22a) with edge incisions (32) and support webs (22q, 22a ₎ crossing them are inserted _{into the} latter in such a way that the head or outer surfaces ( 25 ) of one of the longitudinal edges ( 30 ) of the support webs are approximately flush with one another and define a common plane (E). 3. Support device according to claim 2, characterized in that the head or outer surfaces ( 25 ₎ of the support web ( 22 , 22a , 22q ₎ are formed by a web edge ( 24 ) surrounding its web body ( 23 ) at the ridge edge of the support web. 4. Support device according to claim 3, characterized in that the web edge ( 24 ) projects beyond the surfaces of the web body ( 23 ) on both sides. 5. Support device according to one of claims 2 to 4, characterized in that the _deepest incision ( 33 ) _of the edge incisions ( 32 ) extending from the upper longitudinal edge ( 30 ) of the support web ( 22 , 22a , 22q ) runs approximately on the center line (M) of the support web. 6. Support device according to one of claims 2 to 5, characterized in that a preferably trough-like indentation ( 40 ) for receiving a corresponding nose ( 38 ) of the other support web ( 22 , 22a , 22q ₎ is introduced into at least one of the incision _edges ( 34 ) of the edge incision 32 . 7. Support device according to claim 6, characterized in that in the edge cut ( 32 ) two indentations ( 40 ) lie approximately opposite one another. 8. Support device according to claim 7, characterized in that the indentations ( 40 ₎ are arranged at _a short distance from the head or outer surface ( 25 ) of its support web ( 22 , 22a , 22q ). 9. Support device according to one of claims 3 to 8, characterized in that the edge incisions ( 32 ) divide the support web ₍ 22 , 22a _, 22q ) into fields ( 26 , 28 , 28a ₎ , which in turn are surrounded by a web edge ( 24 ) protruding from its plane. 10. Support device according to claim 9, characterized in that the fields ( 26 , 28 _, 28a ) in the web body ( 23 ) each have at least one opening ( 27 , 29 _, 29a ), which preferably has an approximately rectangular or diamond-shaped edge. 11. Support device according to claim 9 or 10, characterized in that the support web ( 22 _, 22a , 22q ) and its _edge incisions ( 32 ) are surrounded by the web edge ( 24 ), which is supplemented by an axial strip ( 36 ) between the edge incision and the opposite part of the web edge. 12. Support device according to one of claims 6 to 11, characterized in that at least one nose ( 38 ) or similar formation protrudes from the axial strip ( 36 ) of the support web ( 22 , 22a , 22q ₎ , which is designed to engage in one of _the lateral recesses ( 40 ) of an incision edge ( 34 ) of the edge incision ( 32 ) of the other support web receiving the axial strip. 13. Support device according to one of claims 1 to 12, characterized in that a channel profile ( 44 ) is formed on at least one of the end sections ( 24 _n ) of the web edge ( 24 ) of the grid web ( 22 , 22 _a ), which opens towards one side of this grid web to accommodate a channel leg ( 46 ) of a channel profile opening in the opposite direction of a further grid web aligned in the attachment position ( Fig. 3). 14. Support device according to claim 13, characterized by two oppositely opening channel profiles ( 44 ), each extending approximately over half the height (h) of the common front section ( 24 _n ). 15. Support device according to claim 14, characterized in that the opposing channel profiles ( 44 ) each extend from one side of a central recess ( 42 ) of the front section ( 24 _n ). 16. Support device according to one of claims 13 to 15, characterized in that the channel profiles ( 44 ) at the two ends of the grid web ( 22 _, 22a ) are open in opposite directions to each other. 17. Support device according to one of claims 1 to 16, characterized in that a support body ( 50 , _50a , _50b ) for a key insert ( 70 _, 80 ) can be inserted into a grid compartment 19 delimited by intersecting, mutually associated grid-like support _webs ( 22 , 22a , 22q ) . 18. Support device according to claim 17, characterized in that the support body ( 50 _, 50a , 50b ₎ has a wall base ( 51 ) and a ridge plate ( 60 _, 60a , 60b ₎ . 19. Support device according to claim 18, characterized _in that a diagonal web ( 54 ) projects from each of the corner edges ( 53 ) of the wall base ( 51 ) of the support body ( 50 , 50a , 50b ₎ that can be inserted into the grid compartment ( 19 ). 20. Support device according to claim 19, characterized by an end _edge ( 54t ) of the diagonal web ( 54 ) which is inclined downwards towards the corner edge (53) and ends at approximately half the wall height (k). 21. Support device according to one of claims 17 to 20, characterized in that at least one, preferably a pair of cantilever brackets ( 56 ) protrudes from two parallel side walls (52) of the wall base ( 51 ). 22. Support device according to claim 18 and 21, characterized in that the cantilever bracket ( 56 ₎ projects laterally beyond the side edge of the ridge plate ( 60 , 60a _, 60b ) and optionally tapers longitudinally towards its free end. 23. Support device according to claim 21 or 22, characterized in that the ridge plate ( 60 , 60a , 60b ) has corner _tongues ( 58 ) formed thereon which protrude from its side edges _and whose cantilever dimension corresponds approximately to that of the cantilever brackets ( 56 ). 24. Support device according to claim 23, characterized in that the corner tongues ( 58 ) each rest on one of the diagonal webs ( 54 ). 25. Support device according to claim 23 or 24, characterized in that an indentation ( 59 ) is formed in side edges of the ridge plate ( 60b ₎ next to the corner tongue ( 58 ) ( Fig. 32). 26. Support device according to one of claims 18 to 25, characterized in that the ridge plate ( 60 _, 60a _, 60b ) contains an opening ( 62 ) for receiving the key insert ( 70 , 80 ). 27. Support device according to claim 26, characterized in that a longitudinal slot ( 64 ) and/or at least one step-like edge formation ( 65 ) extends from at least one edge ( 63 ) of the rectangular opening ( 62 ) ( Fig. 14). 28. Support device according to claim 27, characterized in that the opening ( 62 ) of the _ridge plate ( 60a ) is at least partially surrounded by a collar ( 66 , 66b ₎ ( Fig. 20, 32). 29. Support device according to claim 28, characterized in that recesses and/or _recesses ( 67 , _67a ) are arranged on/in the collar ( 66 , 66b ). 30. Support device according to claim 28 or 29, characterized in that console formations ( 69 ) and/or counter _hooks ( _69b ) are attached to the collar ( 66b ), wherein the console formation preferably has a V-shaped ridge surface. 31. Support device according to one of claims 18 to 30, characterized in that support columns ( 78 ) for a key insert ( 70 , 80 ) or similar attachment element protrude from the ridge plate ( 60b ₎ . 32. Support device according to one of claims 27 to 31, characterized in that the step-like edge formation(s) ( 65 ), the collar ( 66 , 66b ₎ and the support column(s) ( 78 ) are assigned to the outer surface ( 57 ) of the ridge plate ( 60 _, 60a _, 60b ). 33. Support device according to one of claims 26 to 32, characterized in that the opening ( 62 ) _of the ridge plate ₍ 60 , 60a , 60b ) is penetrated by a base tube ( 71 ) of a key insert ( 70 ), the key plate ( 74 ) of which spans the collar ( 66 ) of the ridge plate at a distance. 34. Support device according to claim 33, characterized in that the key plate ( 74 ) of the key insert ( 70 ) has a desk surface ( 75 ) inclined to the ridge plate ( 60 _, 60a , 60b ₎ . 35. Support device according to claim 33 or 34, characterized in that _at least one side edge ( 76a ) _of the key plate ( 74 ) runs at an angle to the edges ( 61 ) of the ridge plate ( 60 , 60a , 60b ₎ ( Fig. 19, 25). 36. Support device according to one of claims 33 to 35, characterized in that a U-shaped opening ( 73 ) is inserted into at least one side wall ( 72 ) of the cross-sectionally rectangular base tube ( 71 ). 37. Support device according to claim 36, characterized in that the legs of the U-shaped opening ( 73 ) are directed away from the key plate ( 74 ) and protrude from an inner field ( 73a ) delimited _by the legs of the opening at these _triangular ribs ( 73b ). 38. Support device according to claim 30, characterized in that a wall part ( 84 ) of a base frame ( 83 ) of a key plate ( 80 ) is assigned to the console formations ( 69 ). ( Fig. 30) 39. Support device according to claim 38, characterized in that inner ribs ( 85 ) are attached to the base frame ( 83 ) or its wall part ( 84 ). 40. Support device according to one of claims 1 to 39, characterized in that two support frames ( 20 ) with a grid-like support surface are detachably connected by spacers ( 90 ) and these can be inserted at both ends into a grid compartment of a support frame with a grid-like support surface. 41. Support device according to claim 40, characterized in that the spacer ( 90 ) has two support plates ( 92 ) connected by at least one column-like device ( 88 ), which are each provided on their outwardly directed surfaces ( 93 ) with formations ( 94 , 96 ) as plug-in elements. 42. Support device according to claim 41, characterized in that the formations are designed as pins ( 96 ) projecting from the surface ( 93 ) of the support plate ( 92 ) and diagonal webs ( 94 ) adjoining thereto. 43. Support device according to claim 41 or 42, characterized in that the outer distance of the plate-side ends of the outer edges ( 95 ) of two aligned diagonal webs ( 94 ) corresponds approximately to the diagonal length (d) of a grid compartment ( 19 ) of the support frame ( 20 ). 44. Support device according to claim 42 or 43, characterized in that four pins ( 96 ) are arranged near a central opening ( 98 ) of the support plate ( 92 ) and from each of the pins a diagonal web ( 94 ) is directed towards a corner region of the support plate. 45. Support device according to one of claims 42 to 44, characterized by an inclined outer edge (959) of the diagonal web ( 94 ). 46. Support device according to one of claims 41 to 45, characterized in that the two support plates ( 92 ) are connected by a column ( 88 ) of cross-like cross-section. 47. Support device according to claim 41 or 46, characterized in that the column ( 88 ) is detachably connected to the support plates ( 92 ). 48. Support device according to claim 41 or 46, characterized by a column ( 88 ) of adjustable length.