DE2245237C2 - Mattress with spring elements running in the transverse direction - Google Patents

Description

The invention relates to a mattress, in particular All-steel mattress, with a frame and with running in the direction of the mattress Fcderelcmenten mounted on the frame longitudinal members. a ring-like self-contained spring trigger from tendon rods running at a distance from one another with connections at the ends, in particular Webs, form, with extending below in an upwardly curved surface of curvature Schenkelstiibe a support leg is arranged on the two end connections, according to Patent 2,145,102).

Such mattresses have proven themselves, but zcigi it is that the spring elements in terms of their Suspension properties can be improved.

The invention is based on the object of developing a mattress of the type mentioned at the outset, in which the hardness can be changed to a desired value in different load areas without having to rely on the use of different materials.

This is achieved according to the invention in that

the center piece of the support leg is guided approximately within the surface of the curvature. Only in the end areas of the support leg, this support leg runs in downward arcs below the curved surface, which is a sixth to a fifth of the total length of the spring element. By suitable selection of the length of the

ι mungsfläche extending middle piece of the support

^; Leg and the extent of the two end-side downward arcs of the support leg in its end regions, it is possible to bring the elastic properties of the spring element to the desired size.

When using the mattress, the load acting on the spring element on the one hand exerts a Deformation on the leg bars running in the curved surface, which are under this effect try to stretch. On the other hand, this load also leads to elastic deformations within of the support leg, which now come about in two ways.

First of all, the aforementioned stretching of the thigh legs is exercised over the common ends Connections tensile forces on the support leg. which one of the support legs due to its Counteract the pre-tension inherent in the shaping.

This bias is due to the shape of the support leg and its definition in the spring steel cable generated. On the other hand, the aforementioned touch works of the spring element also directly onto the MitieKüick de Stützsi.henkeis and tries with it the support leg conforms to the thigh bars hcrab / udruckeken. causing pressure forces in the Fnile kingdoms de Thigh Labes is coming.

By coupling the various Krafiwirblades within the support bracket. which is characterized by its pretension, by the over the ankle length tensile forces exerted on him as well as by the directly result in the pressure loads acting on it, the desired ideal suspension properties can be achieved Achieve within the Federclemente. With small loads on the mattress it feels Inherent spring backs are proportionate hard on. But if the load increases when a person uses the mattress, it changes the modulus of elasticity of such a spring element to the effect that the mattress because of its now occurring greater compliance is softer feels. This protects the l-cdcrclcment with large Loads against the risk of breakage, because it prevents impermissibly high material deformation in good time. The scope of the spring elements to utilize the elastic resilience is increased in that load area exploited, which in accordance with the intended cm Use of the mattress comes into play.

If one shows the suspension properties of this spring element in a force-displacement diagram.

[J

In the various load areas, there is a distinctly different character in the If spring characteristic. Initially, at low forces, spring curve steeply and then goes in the load range until a flat overall 5 _w curve steeper increases then under extreme loading

This design of the spring element results in a low overall height even in the crucial central area of the ppderelemenis. Furthermore, a larger support surface is created in the mattress frame 10 A ch the upward movement of the center piece of the thigh bar. ...

This support surface can be increased significantly if the support leg is provided in the middle piece 15 with spiral-like transverse deflections. Because: the overall height does not increase in this case, there will be ^{ml of} transverse deflections in the surface of the curvature. Furthermore, it is advisable to arrange the vertices of the transverse deflections with a free 20 " ^S to the leg bars, so that the balance of forces is

g affect.

shows, consists initially of a ring-like self-contained spring rod 12, which is made up of two leg rods Jf extending in AD-stand to one another, which are finally brought together by connections 14 to form a closed structure in a ring-like manner. Between the two legs 13 runs at a rope distance from them a slut leg IS, which on the end Y ^eri ? ^l " ^du " ^ "^ of the spring rod trigger 12 is also attached, as illustrated by the welds 16.

All legs 13, 18 consist of round steel wire. but the leg bars 13 have a 10 to 20 "'. larger diameter than the for the formation of the support leg 18 ^^ J ^. wire having a diameter in the ^Gt ^ ⁿ "Sr of 5 mm, the compounds 14 of the spring rod train come about because of Stah I wire of the leg rods 13. shaped U-in the end region to a structure is angled, when one since spring member 10 in plan view, according to g F., be, rächtet, because, in side view w.e_F -. g 2 .z * ^ through the leg room 13 ".. e, nerKr

wehere components to the Federungse.u.nscnaf-ι Support leg is decisive for binflus emer

rotting

emer horizon al / λim _unkticr t

en tendon 17. the tKntalis sine ι _

3 _cr winding length of such smooth meanders for the desired conveyance property .m

G
from their St.rnend.n

_{κ dcs the} rod

pieces provided, which parallel to the

to border-Buchtet ma », the inner

Sb and give them an S-form. This means that the support legs have a meandering shape in a lateral projection due to this S-shape when viewed from above, which has a separate component _for setting the desired suspension properties. It is favorable daoei. Before the legs are attached to the end connections with straight ends, which run roughly in the direction of the tendon to the curvature surface, from which the leg rods are formed like one from e. bow taut in a tendon, cmporvvolben

In the drawing, the hr incung m is nuh.uai Embodiments shown. Hs /e.gt

I-i «1 the top view and

F ^ 2 the side view of a first embodiment

shape of the spring element of the mattress.

_F ig.3 about natural Cimlic the I nteiansKht

on the inventory of such an edcrclcmcn.s cincmliuigsgcehnittenen frame spar

Fig. 4 the Oue-schniUsans.eht through the beach, - “unesstelle von F i _t . 3 along the section line IV-IV. ^g Fig. 5 the top view of another Ausfuh _in the '' ^, ^^. ^; f 23 -kr zur Kriimmunpeinem S ^^ .rm. ^ au _{Mnd um} , _from

, s! lache 20 4 V ^> ^ ^ ,, "eKtuck 22. which

a da ^ .s, 1κι h ^ nd _; stud / shank. 18th

an ueseml ük, f ^ _Diescs Mittelstiick 22 a., «ht. '~ ^L V, ^ ₁ schnkelstäbcn 13. πι likes to cover up sam η ^ _{midie 20} . _ln this one

50 the c γη r ^ hntu Kr ^ ^^ _cinc

Mu.eK uck 22 γ t / t ckr ^ u _clarified . _in -

c college long ud .s ^ mc 1 _fe . ^^

nerha ^ c - ^ - s ^ 'arneen Meander 25 hin-S κ "UMaij K- ^ ^ ^ _winding g _SSchci -

55. h ^: ^l "j _{,," Snie! bc / ü} g | i der bcnach-η _6 mu, 1. _{(s cinc wrgcsc} .

' ^Γ ^,, icke 27 »ewiihrleis.et is ,. Immediately at ^llLl11- , ..., "_ vwhrndunuen I ⁴ have the Abden ^ nUse ..gen Urb ^^ _{AnsiU / s} , _{ück 28} , _wclch it

* o ™ "" s - g ι.ημ ^ ¹ ^ ^ _{c to the} curvature surface U ■ "™ '^ _{]; uul c] cr F} j _e . ₂ by the i.nna- ^ ^ ^ ₁ - tri hpunkt.erten tendon 17 together.cn-ΐ | the running of the extension pieces 28 recognizable .st fa IU and L _extension piece 28 then begins

AmA Ukscr _2? ^ _n ^ ₁ . _{nahc7lI dcn}

c. guti ^ S «^ backplinktcs 29 _{having um-}

ζ.

Umlenkstcllc 30 results in the transition M) example can be retained. By changing the

between the S-shaped course 23 and the Bc components in the construction of this meander can be

beginning of the middle piece 22. the spring effect with the same material and the same

As can also be seen from FIG. 2, the curve is a slab diameter within wide limits do not change the radius of curvature of the surface of curvature 20 over the 5 of a harder or softer suspension, entire length of the Schcnkclstiibc 13 formed the same, which by the aforementioned coupling of the multiplied is the curvature in the end sections of the sleek spring shafts of the individual construction legs more developed than in the middle piece, where (rush to one of its spring characteristics exactly beforehand almost a flat course is given. This in the area of determinable spring force leads to, the ends of the rapid upward movement taking place outside of the spring trigger 12 are the linden trees the lying surface continued on the essentially flat middle of the support leg 18, but could also The larger part finds its meaning in connection with the merging that occurs at this point anyway with the storage of the spring element 10, weld 16 and with the arrangement of a larger one as it is in connection with FIG. 4 for the number of side-by-side support legs cooperate with the frame longitudinal members 11 BE 15 18 separate bearing pins 19 are provided which correct profile height becomes clear. beyond the terminal connections 14 cr-

From the top view in Fig. 1 it can also be seen stretch. The one-piece design of the Lagerzapdaß the S-shaped downward arches 23 of the supporting leg 19 with a centrally located supporting leg 18 Kels 18 in a longitudinal membrane through the spring is of course in terms of manufacture and strength element 10 run, the extension of which by the »0 is cheaper. The bearing pins 19 are, as shown in FIG. 1 dotted line in FIG. 1 is drawn. It can also be seen that 31 and 31 are determined in the longitudinal center plane the two end-side arches 23 are mirror images of each other so that the pivotable bearing is the same formed to one another, as generally referred to the longitudinal axis, as in connection with The one shown in FIG. 1 indicated middle transverse F i g. 3 and 4 when attaching these spring elements axis 32, which is indicated by dotted lines, practically an AS 10 on the longitudinal frame member 11 is explained in more detail. This Folding symmetry of all leg shapes against bearing pins 19 are, as seen from the side view in ben is. A figure can be found in both end regions 21. 2 shows straight continuations of the on S-course of the support leg 18. consisting of that of the opposite side of the web-like connection approach 28 and the downward arch 23, respectively where fertilizer 14 is located, the aforementioned approach then again a flat one, through the transverse axis 32 30 pieces 28. This means that the bearing journals 19 are also in upward arch struck at the apex in the middle direction of the tendon to the surface of curvature 20, piece 22 connects. In the rope projection there are those with the dash-dotted line in Fig. 2 a two-and-a-half-fold S-curve. Tendon 17 coincides. Therefore, with this page

The aforementioned folding symmetry also applies to the illustration of FIG. 2 with the dash-dotted line

Visible to the meanderings 25 in the middle piece 22, 35 tendons 17 at the same time the loaded by the bearing pin 19

when looking at the top view of FIG. The axis of rotation of the spring element 10 or 10 'is correct

but it goes without saying that both the "wavelength" as given.

also the "amplitude" of the meander 25 other than for storage are evidenced from FIG. 3 and 4

shown in Fig. Ί can be formed. These the bearing journals 19 in single-walled openings 34

Shaping is largely introduced from the desired 4 °. The bearing pin 19 are but with a

Spring properties of this middle piece 22 provided with angled hook end 35, for the purpose of

because the turns act as an intermediate securing of the storage, as follows from the following:

the downward arcs 23 connected compression spring, the openings 34 are designed as elongated holes

which due to the prevailing tensions in det, whose clear width, in the longitudinal direction of the frame

their position, which can be seen from the figures, is held 45 mcnholme 11, at least the same is dei

will. An alternative design of the meander is the hook ends 35 with width 36

the further embodiment of the spring element spring elements 10 by simply plugging them into

10 'in FIG. 5 to see where the rest of the same longitudinal direction of the in F i g. 3 indicated by dash-dotted lines

Structure as in the first exemplary embodiment, the axis of rotation 37 is inserted into the frame spars 11.

which is why repetitions are unnecessary. 5 ° ren. Then a lowering

Here the "wavelength" is chosen to be shorter and the right; to this axis of rotation 37 acting cross-lock

"Amplitude" is more strongly developed, but always tilted so that the tips of the hooks

gaps 35 of the front wall 38 are still opposite, albeit in a weaker configuration. Au ·

27 'between the winding apices 26' of the meander, this interaction between elongated hole 34 unc

ders 25 'with respect to the Schenkclstänke 13' provided 55 hook end 35 is against unwanted outside

are. The specialty consists in this meandering handle, secured »Einrenkverschluß« of the La

course 25 'but in that at the winding separation points 19 of the spring element 10,

means 26 'straight pieces 33 are provided, which par- An additional backup of this situation is durcl

Everyone! plug-like inserts 39 in the openings 3 'to the adjacent parts of the angled bars

13 'run. In this way, a hardening 60 is obtained, which is provided with a bushing 40 for the bearings

the »compression spring property of this meandering pin 19 are provided and in particular made of elastic

winding middle section, which is made up of the rigid plastic. This implementation

The kere inclination of the intermediate meander 40 in the inserts 39 serve as a receiving tray

leg is balanced again, which despite this bearing. In order to facilitate connection with dei

the stronger winding area and thus the sheep- 65 bearing pin 19, the inserts 39 are up to the through

Fung a more closed support surface of the guide 40 slotted out longitudinally, as from the an de

The spring element 10 'has practically the same bottom view recognizable longitudinal slot 41 in Fig.

Suspension properties as can be seen in the first embodiment. Sin through this longitudinal slot

the inserts 39 for the introduction of the trunnion 39 user, for. B. in the pelvic area, differently spreadable and go into their original borrowed loads of the two leg bars, whereby position due to the elastic properties of the rotating plastic, which is different with respect to the axis of rotation 37 from allcine back. moments become effective. Done accordingly

On the outside of this plug-like insert, the Fcdcrelcmcntc 10 is tilted in the direction of the

zes 39 i'.i a stop plate 42 is provided, the double arrow 45 shown in FIG

on the outside of the wall 38 of the Rahmcnhol- axis of rotation 37 around, so that also in the transverse direction

mes 11 and on the one hand has the task of making the Fcdcrclemcnte 10 independent of its spring

The depth of engagement of the insert 39 in the duct 34 contributes to the load differences

to be determined. On the other hand, theschlagplattc io has the ability to follow. In addition to the elastic

42 also has the task of making the mattress softer, noisy

reducing stop for the web-like connection deformation due to lateral tilting of the spring

14 to serve between the Schcnkclstäben 13 when given elements. So it doesn't matter if the

the spring element 10 have a considerable width in the direction of the axis of rotation Fcderelementc and

37 should move back and forth. Angled to the 15 also more than just three spaced apart

The stop plate 42 also has a cover lap end having screw rods, because through the

pen 43, which is tilted over the web-like connection, is an ideal adaptability in

Set 14 of the Fcderelcments 10 sets, like in particular another, deviating from the horizontal

those from FIG. 4 can be seen. This tab is given the angular position of the spring element,

continues to run below one on the hollow profile of the ao through the pivoting connection of the pivot bearing

The wall attachment 44 formed on the frame 11 and its securing by the plastic inserts 39

By connecting the designed as a square tube, a reliable retention of the spring elements in the

deten frame spar 11 arises and given on the frame frame, which even in the case of extreme loads

is arranged inside. The cover flap 43 is able to withstand loads when e.g.

also acts as noise-reducing, the blows as by elastic deformation the thigh bars so

receiving element, which has moved downwards in the direction of the load by tilting

gen Jes spring element in its bearing effectively practice that a "negative bulge" arises, the

what follows from the following: even again to a shortening of the effective

Since the length of rotation determined by the bearing pin 19 leads. Namely, if the effective length axis 37 runs in the longitudinal center plane, which, 30 shortened, is not to be feared that the Lagerzapwie was mentioned above, as a tendon to the fen 19 fall out of their openings 34 because located curved surface 20 are then understood the angled hook ends 35 as Ankann, the center of gravity of the spring element lies above the front walls 38 of the hollow half of this bearing axis, which is why the bearing cover profile abuts and thus a further protrusion Prevent asymmetrical loads on both legs 35 pulling movement of the bearing pin 19. Now rods 13 is sensitive. When using the mattress, the suspension characteristic of the element 10 increases in arise quite steeply because of the body shape of the force-displacement diagram.

1 sheet of drawings

Claims (8)

Patent claims: 1. Mattress, in particular all-steel mattress, with a frame and with spring elements that run in the transverse direction of the mattress and are mounted on the longitudinal frame members, which form a ring-like, self-contained spring bar pull from leg bars running at a distance from one another with end connections, in particular webs, with below the in one after A support leg is arranged on the two end connections, according to patent 2,145,102
net that the middle piece (22) of the support leg (18) is guided approximately within the curved surface (20). 2. Mattress according to claim 1, characterized in that the supporting leg (18) is provided in the middle piece (22) with 'i'indungs-like transverse deflections (25). 3. Mattress according to claim 2, characterized in that the transverse deflections (25) in the Curvature surface (20) are arranged. 4. Mattress according to claim 3, characterized in that the Windungsscneitel (26) of the Transverse deflections (25) have a free gap (27) to the leg bars (13). 5. Mattress according to one of claims 2 to 4, characterized in that the transverse deflections (25) are designed as sinusoidal meanders. 6. Mattress according to claim 5, characterized by that the meanders (25 ') have straight pieces (33) in their winding apices (26'). which run parallel to the adjacent parts of the leg bars (13 '). 7. Mattress according to one or more of claims 1 to 6, characterized in that the End areas (21) of the Stützschcnkcl (18) in a vertical plane to the curved surface (20) a Have an S-shaped course (23). 8. Mattress according to one or more of An-Proverbs 1 to 7, characterized in that the Support legs (18) following its attachment points has straight extension pieces (28) at the end connections (14). which approximately in the direction of the tendon (17) to Curved surface (20) run.