DE3525300C2

DE3525300C2 - Base mattress with cross members and elastic connectors

Info

Publication number: DE3525300C2
Application number: DE3525300A
Authority: DE
Inventors: Arthur Lieberknecht
Original assignee: LIEBERKNECHT A
Current assignee: Lieberknecht Irma Geb Wagenblass 68535 Edingen
Priority date: 1985-07-16
Filing date: 1985-07-16
Publication date: 1993-10-21
Anticipated expiration: 2005-07-17
Also published as: DE8520473U1; DE3525300A1

Description

Die Erfindung betrifft eine Untermatratze mit Querträgern zum Einlegen in ein Bettgestell und als Auflage für eine Obermatratze, bei der jeder Querträger mittels eines in seiner Federstärke veränderbaren elastischen Verbindungsstücks am Auflegerahmen der Untermatratze befestigt ist, wobei jedes Verbindungsstück eine vorspannbare Druckfeder aufweist, die mit einem Ende in einer Aufnahmebohrung einer Längszarge des Auflegrahmens angeordnet und mit dem anderen Ende am Querträger gehalten ist, wobei in einer Aussparung der Längszarge der Querträger eine Platte mit einer Meßskala angeordnet ist, auf welcher ein Meßschieber verschiebbar und befestigbar ist, wobei in eine mittlere Bohrung der Aufnahmebohrungen der Längszargen des Auflegerahmens eine Haltebuchse eingelassen ist, in deren Achse ein um seine Vertikalachse beweglicher Gewindebolzen angeordnet ist, auf welchem ein Federteller mit Gewinde gleitet, wobei in den Federteller ein Befestigungsloch zum Eingreifen des abgewinkelten Endes der Druckfeder angeordnet ist, welche an einem in einer Einlassung des Querträgers angeordneten oberen Federteller befestigt ist, und wobei die Meßskala mit ihrer oberen Abwinkelung direkt gegen die Unterkante des Querträgers geführt wird, wobei vertikal über der Mitte des Federtellers der Querträger des Auflegerahmens eine Bohrung aufweist, in welche für die Druckmessung eine Meßröhre mit Skaleneinteilung bewegbar eingesetzt ist und den Gewindebolzen umschließt und wobei in der Druckstellung "0" die Meßröhre auf dem Federteller aufsitzt und mit der Ebene des Querträgers abschließt, nach Zusatzpatent 34 43 280.The invention relates to a bottom mattress with cross members for insertion in a bed frame and as a support for a top mattress, where everyone Cross member by means of an elastic in its spring strength changeable Connector is attached to the support frame of the base mattress, wherein each connector has a prestressable compression spring with one end in a receiving bore of a longitudinal frame of the support frame arranged and held at the other end on the cross member, wherein in a recess in the longitudinal frame of the cross member a plate with a measuring scale is arranged on which a caliper can be moved and fastened is, in a central bore of the receiving bores Longitudinal frames of the support frame, a holding bush is inserted, in the A threaded bolt movable about its vertical axis is arranged, on which a spring plate with thread slides, whereby in the spring plate a mounting hole for engaging the angled end of the compression spring is arranged, which is arranged on an in an inlet of the cross member upper spring plate is attached, and the measuring scale with her upper bend directly against the lower edge of the cross member being, vertically above the middle the spring plate of the cross member of the support frame has a bore, in which a measuring tube with scale graduation for the pressure measurement is used movably and encloses the threaded bolt and where in the pressure position "0" the measuring tube sits on the spring plate and with the level of the cross member, according to additional patent 34 43 280.

Eine derartige Untermatratze ist nach der DE 83 35 937 U1 bekannt. Der Nachteil dieser Untermatratze besteht darin, daß für die Anbringung der Meßeinrichtung der Meßschieber mit dem Meßzeiger, das Druckelement und die segmentartige Aussparung bis auf die Tiefe der Aufnahmebohrung geführt werden müssen, um mit Hilfe des Meßschiebers die ermittelten Druckwerte am Federteller durch Drehen des Gewindebolzens am Innensechskant festzustellen. Wegen der Tiefe der Aussparung bis zur Aufnahmebohrung kann aus Stabilitätsgründen nur ein hochwertiges Mehrschichtholzmaterial verwendet werden.Such a sub-mattress is known from DE 83 35 937 U1. The disadvantage of this mattress base is that for the attachment the measuring device, the caliper with the pointer, the pressure element and the segment-like recess led to the depth of the mounting hole have to be, with the help of the caliper the determined pressure values on the spring plate by turning the threaded bolt on the hexagon socket ascertain. Because of the depth of the recess up to the mounting hole can be made For reasons of stability, only a high-quality multilayer wood material is used will.

Zur Behebung dieses Nachteiles ist in Weiterbildung der Untermatratze gemäß DE 83 35 937 U1 und entsprechend dem Zusatzpatent 34 43 280 vorgesehen, daß vertikal über die Mitte des Federtellers der Querträger des Auflegerahmens eine Bohrung aufweist, in welche für die Druckmessung eine Meßröhre mit Skaleneinteilung bewegbar eingesetzt ist und den Gewindebolzen umschließt, wobei in der Druckstellung "0" die Meßröhre auf dem Federteller aufsitzt und mit der Ebene des Querträgers abschließt.In order to remedy this disadvantage, the lower mattress according to DE 83 35 937 U1 is developed and according to the additional patent 34 43 280 provided that vertically over the center of the spring retainer the cross member of the support frame has a hole in which for the pressure measurement a measuring tube with scale graduation is used movably and encloses the threaded bolt, with the measuring tube in the pressure position "0" sits on the spring plate and with the level of the cross member completes.

Diese Ausbildung weist den Vorteil auf, daß die Druckwerte nach dem Meßvorgang nicht in einem besonderen Arbeitsgang am Meßschieber eingestellt werden müssen und das Ablesen und Einstellen keine größe körperliche Flexibilität voraussetzt. Außerdem ist der Meßschieber nicht außenseitig am Auflegerahmen befestigt, so daß er beim Transport und Einlegen in das Bettgestell nicht beschädigt werden kann. Weiterhin ist der Federweg auch ausreichend, wenn zwei Personen die Matratze belasten. Außerdem kann die Aussparung für den Meßschieber nur gering sein, so daß die Längszargen des Auflegerahmens stabil bleiben.This training has the advantage that the pressure values after Measuring process not set in a special operation on the caliper and reading and setting is not a big physical thing Flexibility required. In addition, the caliper is not on the outside attached to the support frame so that it is transported and inserted into the Bed frame cannot be damaged. Furthermore, the travel is too sufficient if two people load the mattress. In addition, the Recess for the caliper only be small, so that the longitudinal frames of the The support frame remains stable.

Nachteilig bei der Ausführung nach dem Zusatzpatent 34 43 280 ist jedoch, daß die in den Aussparungen des Auflegerahmens eingebrachten Führungen für den Meßzeiger und den Meßschieber bei der Montage sehr zeit- und materialaufwendig sind. Außerdem muß der Meßschieber beim Transport durch besondere Verpackungselemente vor Stoß und Druck geschützt werden.A disadvantage of the design according to the additional patent 34 43 280 is that the in the recesses of the Guides for the pointer and the caliper introduced in the support frame are very time-consuming and expensive to assemble. Furthermore the caliper must be transported through special packaging elements Shock and pressure are protected.

Ein weiterer Nachteil besteht in den Dehnungstoleranzen der flexiblen, aber unverstellbaren über die ganze Breite der Untermatratze reichenden Querhalterungen, wodurch ein Schwimmen der Querträger bei Belastung mit Ausschlag nach rechts oder links entsteht. Außerdem sind für einen Querträger zwei Querhalterungen über die ganze Untermatratzenbreite erforderlich und daher teuer und müssen mittenseitig nah aneinander vorbeigeführt oder verschränkt werden, wodurch Reibungsgeräusche beim Liegen wegen der exzentrischen Führung der Querträger nicht vermieden werden können.Another disadvantage is the stretch tolerance of the flexible, but unadjustable across the entire width of the mattress Cross brackets, causing the crossbeam to float when loaded with Rash to the right or left arises. Also are for one Cross member two cross brackets across the entire width of the lower mattress necessary and therefore expensive and must be passed close to each other in the middle or be entangled, causing friction noise when lying because of the eccentric guidance of the cross beams cannot be avoided.

Der Erfindung liegt die Aufgabe zugrunde, die im Hauptpatent vorgesehenen Querhalterungen in der Weise zu verbessern, daß ein Schwimmen der Querträger in der Querrichtung bei Belastung vermieden wird, wobei die ganze Konstruktion nicht material- und zeitaufwendig sein soll.The invention is based on the object provided in the main patent Cross brackets improve in such a way that a swimming of the cross beams is avoided in the transverse direction under load, the whole Construction should not be material and time consuming.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in jeder Längszarge vor den Aussparungen eine Platte als Anschlag für die Meßzeiger dient, wobei die Meßschieber mit Nocken in einem Führungsschlitz der Platte gleiten, daß jeder Querträger mittig an der Unterseite mit dem Auflegerahmen durch eine verstellbare Querhalterung verbunden ist, die an einem unterhalb des Querträgers angeordneten Spanngehäuse befestigt ist und in einen am Auflegerahmen eingebrachten Distanzraum einmündet, von welchem ein Höhenabstandshalter mit konstanter Länge abgeht und in einer Ausnehmung des Querträgers mündet.This object is achieved in that in each longitudinal frame in front of the recesses a plate serves as a stop for the measuring pointer, whereby the calipers slide with cams in a guide slot in the plate, that each cross member in the middle of the underside with the support frame an adjustable cross bracket is connected to one below the Cross beam arranged clamping housing is attached and in a on the support frame introduced distance space opens, from which a height spacer goes off with a constant length and in a recess of the Cross member opens.

Der Vorteil der erfindungsgemäßen Ausbildung liegt darin, daß der Meßschieber während des Transportes aus den Führungsschlitzen genommen werden kann. Außerdem sind die Querträger nur in einem einzigen Befestigungspunkt an der Innenseite der Längszargen des Auflegerahmens fixiert.The advantage of the training according to the invention is that the caliper be removed from the guide slots during transport can. In addition, the cross members are only in a single attachment point fixed on the inside of the longitudinal frames of the support frame.

Weiterbildungen der Erfindung sind in den Unteransprüchen enthalten.Further developments of the invention are contained in the subclaims.

Die Erfindung wird nachstehend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigtThe invention is illustrated below with reference to one in the drawings Exemplary embodiment described and explained in more detail. It shows

Fig. 1 eine Vorderansicht und eine Draufsicht der Platte, Fig. 1 is a front view and a plan view of the plate,

Fig. 2 einen Ausschnitt "A" der Platte, Fig. 2 shows a section "A" of the plate,

Fig. 3 einen Schnitt "B-C" nach Fig. 2, Fig. 3 shows a section "BC" of Fig. 2,

Fig. 4 einen Schnitt "D-E" nach Fig. 2, Fig. 4 shows a section "DE" of FIG. 2,

Fig. 5 eine Seitenansicht auf den Auflegerahmen, Fig. 5 is a side view of the support frame,

Fig. 6 einen Ausschnitt "F" nach Fig. 5 Fig. 6 shows a section "F" in FIG. 5

Fig. 7 einen Schnitt "G-H" nach Fig. 6, Fig. 7 shows a section "GH" in FIG. 6,

Fig. 8 einen Ausschnitt "I" nach Fig. 5, Fig. 8 a section "I" of FIG. 5,

Fig. 9 einen Schnitt "J-K" nach Fig. 8, Fig. 9 shows a section "JK" in FIG. 8,

Fig. 10 eine Ausbildung nach Fig. 6 mit einem Endlosband als Querhalterung, Fig. 10 An embodiment according to Fig. 6 with an endless belt as a cross support,

Fig. 11 "L-M" nach Fig. 10, Fig. 11 "LM" in Fig. 10,

Fig. 12 eine Seitenansicht auf den Auflegerahmen nach Fig. 10 und Fig. 12 is a side view of the support frame according to Fig. 10 and

Fig. 13 einen Ausschnitt "N" nach Fig. 12. Fig. 13 a section "N" according to Fig. 12.

Fig. 2 zeigt entsprechend Ausschnitt "A" eine Platte 8 für einen Meßschieber 5 mit einer Meßskala 4, mit Führungsschlitzen 44, einem Mitnehmer 90 und Befestigungsschrauben 16 der Platte 8. Fig. 2 Detail "A" according to a plate 8 for a caliper gauge 5 with a measurement scale 4, with guide slots 44, a driver 90 and fixing screws 16 of the plate 8.

Der Schnitt "B-C" der Fig. 3 zeigt, daß die Platte 8 in der Längszarge 2 Aussparungen 54 für einen Meßzeiger 86 begrenzt und der Meßschieber 5 sich in einer Ebene mit der Ebene der Querzarge 3 befindet. In dem Führungsschlitz 44 läuft der Meßschieber 5 mit zwei Nocken 42.The section "BC" of FIG. 3 shows that the plate 8 in the longitudinal frame 2 delimits recesses 54 for a measuring pointer 86 and the caliper 5 is in one plane with the plane of the transverse frame 3 . The caliper 5 runs in the guide slot 44 with two cams 42 .

Die Fig. 4 zeigt im Schnitt "D-E" die Längszarge 2 mit einer Aufnahmebohrung 6, einer mittleren Bohrung 7, einer Haltebuchse 94, einer Stabilisierungsscheibe 95, einem Gewindebolzen 93 mit Innensechskantschlüssel 102, einem Federteller mit Innengewinde 97, einem Befestigungsloch 25 des abgewinkelten Endes 26 einer Druckfeder 10, einem oberen Federteller 98 mit einer oberen Federabwinkelung 30 in einer Einlassung 99, außerdem einen Querträger 9 mit einer Querträgerbohrung 32, den Mitnehmer 90 mit einer oberen Abwinkelung 88 und eine Meßröhre 100 mit einer Skaleneinteilung 101. Fig. 4 shows in section "DE" the longitudinal frame 2 with a receiving bore 6 , a central bore 7 , a retaining bush 94 , a stabilizing disc 95 , a threaded bolt 93 with an Allen key 102 , a spring plate with an internal thread 97 , a mounting hole 25 of the angled end 26 a compression spring 10 , an upper spring plate 98 with an upper spring bend 30 in an inlet 99 , also a cross member 9 with a cross member bore 32 , the driver 90 with an upper bend 88 and a measuring tube 100 with a scale 101 .

In Fig. 5 sieht man in der Seitenansicht den Auflegerahmen 1 mit den Längs- und Querzargen 2 und 3, den Druckfedern 10, den Querträgern 9, einem Höhenabstandshalter 103 mit Querhalterungen 111 und einem Spanngehäuse 117, das gleichzeitig als Höhendistanzstück ausgebildet ist, um den seitlichen Ausschlag der Querträger 9 auf etwa 1 mm zu reduzieren, so daß eine sichere Querstabilität entsteht.In Fig. 5 you can see in the side view the support frame 1 with the longitudinal and transverse frames 2 and 3 , the compression springs 10 , the cross members 9 , a height spacer 103 with cross brackets 111 and a clamping housing 117 , which is also designed as a height spacer around the to reduce lateral deflection of the cross member 9 to about 1 mm, so that a secure transverse stability is created.

Zuzüglich zu Fig. 4 zeigt der Ausschnitt "F" der Fig. 6 den Höhenabstandshalter 103 und die Querhalterung 111. Der Höhenabstandshalter 103 hat eine Festlänge und wird oben im Querträger 9 von einem Splint 104, der in einer schlitzförmigen Ausnehmung 106 lagert, gehalten und über eine Ausnehmung 110 bis in einen Distanzraum 108 unter einer Haltebuchse 107 geführt, die in einer Bohrung 109 ruht und mit einem unteren Splint 105 verankert ist. Im Distanzraum 108 ist auch das Splintende 112 der in Fixlängen abgelängten Querhalterung 111 verankert. Längsgurte 11 verhindert ein Abweichen der Querträger 9 in Längsrichtung.In addition to FIG. 4, the cutout “F” of FIG. 6 shows the height spacer 103 and the transverse holder 111 . The height spacer 103 has a fixed length and is held at the top in the cross member 9 by a split pin 104 , which is supported in a slot-shaped recess 106 , and is guided via a recess 110 into a spacing space 108 under a holding bushing 107 , which rests in a bore 109 and with a lower split pin 105 is anchored. In the spacer chamber 108 also Splintende 112 of the cut in fixed lengths cross-support 111 is anchored. Longitudinal belts 11 prevent the cross members 9 from deviating in the longitudinal direction.

Im Schnitt "G-H" der Fig. 7 ist die genaue Lage des Höhenabstandshalters 103 mit dem Splint 104, dem Schlitz 106, der Ausnehmung 110, der Haltebuchse 107, der Bohrung mit dem Splintende 105 und dem Distanzraum 108 an der Innenseite des Auflegerahmens 1 zu sehen. In section "GH" of FIG. 7, the exact position of the height spacer 103 with the cotter pin 104 , the slot 106 , the recess 110 , the holding bush 107 , the bore with the split end 105 and the spacing 108 on the inside of the support frame 1 is too see.

Die Fig. 8 zeigt in einem Ausschnitt "I" wie ein oberer Splint 113 der Querhalterung 111 in einem Halteschlitz 115 des Spanngehäuses 117 in einem Backen 114 gehalten wird. Mit Hilfe einer Spannmutter 116 können Spannungstoleranzen der Querhalterungen 111 ausgeglichen werden. Durch die Distanz 125 des Spanngehäuses 117 wird der radikale Ausschlag der Querhalterung 111 bei Belastungen bei normalen Federspannhöhen auf etwa 1 mm reduziert. Das Spanngehäuse wird durch Halteschrauben 118 an der Unterseite des Querträgers 9 befestigt. FIG. 8 shows in a section "I" how an upper split pin 113 of the transverse holder 111 is held in a holding slot 115 of the clamping housing 117 in a jaw 114 . With the help of a clamping nut 116 , tension tolerances of the cross brackets 111 can be compensated for. The distance 125 of the clamping housing 117 reduces the radical deflection of the transverse holder 111 to approximately 1 mm under loads with normal spring clamping heights. The tensioning housing is fastened to the underside of the cross member 9 by means of retaining screws 118 .

Die Fig. 9 im Schnitt "J-K" zeigt, wie das Spanngehäuse 117 mit den Backen 114 der Spannmutter 116 und der Querhalterung 111 mit den Schrauben 118 an der Unterseite des Querträgers 9 befestigt ist. FIG. 9 in section "JK" shows how the clamping housing 117 is fastened to the underside of the crossmember 9 with the jaws 114 of the clamping nut 116 and the cross bracket 111 with the screws 118 .

Die Fig. 10 und 11 zeigen Merkmale der Fig. 6 mit dem Unterschied, daß für die Querhalterung 111 ein flexibles Endlosband verwandt wird. Dieses Band wird durch die Haltebuchse 107 in einer Ausnehmung 121 hindurchgeführt und von einer Druckplatte 119 über eine Feststellschraube 120 in der gewünschten Spannung gehalten. FIGS. 10 and 11 show characteristics of Fig. 6 with the difference that an endless flexible belt is used for the transverse holder 111. This band is passed through the holding bush 107 in a recess 121 and held in the desired tension by a pressure plate 119 via a locking screw 120 .

In den Fig. 12 und 13 ist gezeigt, wie die Querhalterung 111 über einen Distanzblock 124 an der Unterseite des Querträgers 9 angebracht ist und durch eine Klemmschraube 123 mittels einer Klemmplatte 122 in der gewünschten Distanz 125 fixiert wird.In Figs. 12 and 13 is shown how the cross-support 111 is attached via a spacer block 124 on the underside of the cross member 9 and is fixed by a clamping screw 123 by means of a clamping plate 122 at the desired distance 125th

Claims

11718 The invention relates to a bottom mattress with cross members for insertion into a bed frame and as a support for a top mattress, in which each cross member is fastened to the support frame of the bottom mattress by means of an elastic connecting piece which can be changed in spring strength, each connecting piece having a prestressable compression spring which has one end is arranged in a receiving bore of a longitudinal frame of the support frame and is held at the other end on the crossmember, a plate with a measuring scale being arranged in a recess in the longitudinal frame of the crossmember, on which a caliper can be displaced and fastened, with a central bore in the receiving bores the longitudinal frames of the support frame, a holding bush is embedded, in the axis of which a threaded bolt movable about its vertical axis is arranged, on which a spring plate with thread slides, with a fastening hole in the spring plate for engaging the deflected Nkelte end of the compression spring is arranged, which is attached to an upper spring plate arranged in an inlet of the cross member, and wherein the measuring scale with its upper bend is guided directly against the lower edge of the cross member, with the cross member of the support frame one vertically above the center of the spring plate Has bore in which a measuring tube with scale graduation is movably inserted and encloses the threaded bolt and in the pressure position "0" the measuring tube sits on the spring plate and ends with the plane of the cross member, according to additional patent 34 43 280.

Such a sub-mattress is known from DE 83 35 937 U1. The disadvantage of this sub-mattress is that for the attachment of the measuring device the caliper with the measuring pointer, the pressure element and the segment-like recess must be guided to the depth of the mounting hole in order to use the caliper to determine the pressure values on the spring plate by turning the threaded bolt on Hexagon socket. Because of the depth of the recess up to the mounting hole, only a high-quality multi-ply wood material can be used for reasons of stability. To remedy this disadvantage, further development of the base mattress according to DE 83 35 937 U1 and according to the additional patent 34 43 280 provides that the vertically over the center of the spring plate Cross member of the support frame has a hole in which a measuring tube with graduations is movably inserted for pressure measurement and encloses the threaded bolt, the measuring tube being seated on the spring plate in the pressure position "0" and being flush with the level of the cross member. This design has the advantage that the pressure values after the measuring process do not have to be set in a special operation on the caliper and that reading and setting does not require great physical flexibility. In addition, the caliper is not attached to the outside of the support frame so that it cannot be damaged during transport and insertion into the bed frame. Furthermore, the spring travel is also sufficient if two people load the mattress. In addition, the recess for the caliper can only be small, so that the longitudinal frames of the support frame remain stable. A disadvantage of the design according to the additional patent 34 43 280, however, is that the guides for the pointer and the caliper introduced in the recesses of the support frame Assembly are very time and material consuming. In addition, the caliper must be protected from impact and pressure by special packaging elements during transport. Another disadvantage is the stretch tolerances of the flexible, but unadjustable cross brackets that extend across the entire width of the bottom mattress, causing the cross beams to float to the right or left when loaded with a deflection arises. In addition, two cross brackets across the entire width of the lower mattress are required for a cross member and are therefore expensive and must be passed or folded close to one another in the middle, which means that friction noises when lying down cannot be avoided due to the eccentric guidance of the cross members.

The invention has for its object to improve the cross brackets provided in the main patent in such a way that a swimming of the cross member in the transverse direction is avoided under load, the whole construction should not be material and time consuming. This object is achieved in accordance with the invention that in each longitudinal frame in front of the recesses a plate serves as a stop for the measuring pointer, the calipers slide with cams in a guide slot in the plate, that each cross member is connected in the center on the underside to the support frame by an adjustable cross bracket, which is connected to a below the Cross beam arranged clamping housing is attached and opens into a distance space introduced on the support frame, from which a height spacer with a constant length extends and opens into a recess of the cross member. The advantage of the inventive design is that the caliper during transport it can be removed from the guide slots. In addition, the cross members are only fixed in a single fastening point on the inside of the longitudinal frames of the support frame. Further developments of the invention are contained in the subclaims.

The invention is described and explained in more detail below with reference to an embodiment shown in the drawings. It shows Fig. 1 is a front view and a plan view of the plate, Fig. 2 shows a section "A" of the plate, Fig. 3 shows a section "BC" of Fig. 2, Fig. 4 shows a section "DE" of FIG. 2, Fig. 5 is a side view of the support frame, Fig. 6 shows a section "F" in FIG. 5 FIG. 7 is a section "GH" of Fig. 6, Fig. 8 a section "I" of FIG. 5, FIG. 9 8 shows a section "JK" according to FIG. 8, FIG. 10 shows an embodiment according to FIG. 6 with an endless belt as a transverse holder, FIG. 11 "LM" according to FIG. 10, FIG. 12 shows a side view of the support frame according to FIG. 10 and FIG . 13 a section "N" of Fig. 12. Fig. 2 shows corresponding segment "a" is a plate 8 for a caliper gauge 5 with a measurement scale 4, with guide slots 44, a driver 90 and fixing screws 16 of the plate 8. The section "BC" of FIG. 3 shows that the plate 8 in the longitudinal frame 2 delimits recesses 54 for a measuring pointer 86 and the caliper 5 is in one plane with the plane of the transverse frame 3 . The measuring slide 5 runs in the guide slot 44 with two cams 42. FIG. 4 shows in section "DE" the longitudinal frame 2 with a receiving bore 6 , a central bore 7 , a holding bush 94 , a stabilizing disk 95 , a threaded bolt 93 with an Allen key 102 , a spring plate with internal thread 97 , a mounting hole 25 of the angled end 26 of a compression spring 10 , an upper spring plate 98 with an upper spring bend 30 in an inlet 99 , also a cross member 9 with a cross member bore 32 , the driver 90 with an upper bend 88 and a measuring tube 100 with a graduation 101. In Fig. 5 you can see in the side view the support frame 1 with the longitudinal and transverse frames 2 and 3 , the compression springs 10 , the cross members 9 , a height spacer 103 with cross brackets 111 and a clamping housing 117 , the is also designed as a height spacer to the lateral deflection of the cross beams to reduce r 9 to approximately 1 mm, so that a reliable transverse stability is created . In addition to FIG. 4, section "F" of FIG. 6 shows the height spacer 103 and the transverse holder 111 . The height spacer 103 has a fixed length and is held at the top in the cross member 9 by a split pin 104 , which is supported in a slot-shaped recess 106 , and is guided via a recess 110 into a spacing space 108 under a holding bushing 107 , which rests in a bore 109 and with a lower split pin 105 is anchored. In the spacer chamber 108 also Splintende 112 of the cut in fixed lengths cross-support 111 is anchored. Longitudinal belts 11 prevent the crossbeams 9 from deviating in the longitudinal direction. In section "GH" in FIG. 7, the exact position of the height spacer 103 with the cotter pin 104 , the slot 106 , the recess 110 , the holding bush 107 , the bore with the split end 105 is shown and the spacing 108 on the inside of the support frame 1 can be seen. FIG. 8 shows in a section "I" how an upper split pin 113 of the transverse holder 111 is held in a holding slot 115 of the clamping housing 117 in a jaw 114 . With the help of a clamping nut 116 , tension tolerances of the cross brackets 111 can be compensated for. The distance 125 of the clamping housing 117 reduces the radical deflection of the transverse holder 111 to approximately 1 mm under loads with normal spring clamping heights. The clamping housing is fastened to the underside of the crossmember 9 by means of retaining screws 118. FIG. 9 in section "JK" shows how the clamping housing 117 with the jaws 114 of the clamping nut 116 and the cross bracket 111 with the screws 118 on the underside of the crossmember 9 .The attached Fig. 10 and 11 show characteristics of Fig. 6 with the difference that an endless flexible belt is used for the transverse holder 111. This band is passed through the holding bushing 107 in a recess 121 and is held in the desired tension by a pressure plate 119 via a locking screw 120. In FIGS . 12 and 13 it is shown how the cross bracket 111 is via a spacer block 124 on the underside of the cross member 9 is attached and is fixed in the desired distance 125 by a clamping screw 123 by means of a clamping plate 122 .

1.Bottom mattress with cross members for inserting into a bed frame and as a support for an upper mattress, in which each cross member is attached to the support frame of the bottom mattress by means of an elastic connecting piece which can be changed in spring strength, each connecting piece having a prestressable compression spring which has one end in one Receiving hole of a longitudinal frame of the support frame is arranged and held at the other end on the cross member, wherein a plate with a measuring scale is arranged in a recess of the longitudinal frame of the cross member, on which a caliper can be moved and fastened, with in a central bore of the receiving holes of the longitudinal frames the support frame, a holding bush is embedded, in the axis of which a threaded bolt movable about its vertical axis is arranged, on which a spring plate with thread slides, with a fastening hole in the spring plate for engaging the angled end of the compression spring is arranged, which is attached to an upper spring plate arranged in an inlet of the cross member, the measuring scale with its upper bend being guided directly against the lower edge of the cross member, with the cross member of the support frame having a bore vertically above the center of the spring plate, into which a measuring tube with graduations is movably inserted for the pressure measurement and encloses the threaded bolt and, in the pressure position "0", the measuring tube sits on the spring plate and ends with the level of the crossmember, according to additional patent 34 43 280, characterized in that in each longitudinal frame ( 2 ) in front of the cutouts ( 54 ) a plate ( 8 ) serves as a stop for the measuring pointers ( 86 ), the calipers ( 5 ) with cams ( 42 ) sliding in a guide slot ( 44 ) in the plate ( 8 ) so that each cross member ( 9 ) in the middle on the underside with the support frame ( 1 ) by an adjustable cross bracket ( 111 ) and is attached to a tensioning housing ( 117 ) arranged below the crossmember ( 9 ) and opens into a spacing space ( 108 ) attached to the support frame ( 1 ), from which a height spacer ( 103 ) with a constant length extends and into a recess ( 110 ) of the cross member ( 9 ) opens.

2. sub-mattress according to claim 1,
characterized in that the height spacer ( 103 ) and the transverse bracket ( 111 ) are held by split pins ( 104, 105, 112, 113 ).

3. sub-mattress according to claim 1 or 2,
characterized in that the transverse bracket ( 111 ) is designed as a flexible endless belt which is held in the desired tension by means of a locking screw ( 120 ).

4. sub-mattress according to one of claims 1 to 3,
characterized in that the plate ( 8 ) extends to the transverse frames ( 3 ) of the support frame ( 1 ).

5. sub-mattress according to one of claims 1 to 4,
characterized in that the clamping housing ( 117 ) is designed as a height spacer for the lateral deflection of the crossbeams ( 9 ).

6. sub-mattress according to one of claims 1 to 5,
characterized in that the tensioning housing ( 117 ) has a tensioning nut ( 116 ) to compensate for tension tolerances of the cross bracket ( 111 ).