DE1778480B2 - Steel construction sled-base chair - Google Patents

Description

The invention relates to a sled-base chair especially intended for use in schools in steel construction with two side parts, each made of »In a stand runner, one that is positioned approximately from its longitudinal center and is directed obliquely upwards to the rear Support and a console for the seat that protrudes forward from the servant exist and between them used transverse webs are held together, with all parts being welded together.

The invention is based on the object of tubular steel chairs of this known type (DTPS I 114 012), the represent a further development of a wooden chair (DT-PS 864 739), according to a different construction principle to develop particularly inexpensive and stable in sheet steel construction, whereby on the strength of the Corner connections particular value /.u, was placed.

Although it was known elsewhere (GB-PS 1 069 297), the chair legs and frames of four-legged chairs Chairs by assembling and welding numerous angled, flat and U-shaped bent ones Manufacture sheet metal parts. However, this design was too many-part, too expensive and so cumbersome that it can only be carried out by trained skilled workers. Except

ίο the underframe obviously needed one all around Decorative paneling, shown as a seat-back frame was. For the production as a school chair is such a cumbersome and expensive construction, which in itself never has attained a practical importance is not suitable.

In contrast, the object on which the present invention is based is achieved in a simple manner, particularly suitable for series production, essentially in that the stand runners, the supports and the seat brackets are made from one-piece U-shaped profiled bent steel parts;! - " ^1. "! s ^: nd. whereby the U-Pmfil of the stand runners is open at the top, the socket at the front and that of the seat consoles at the bottom! furthermore, the supports in the professional! the standing flutes and the seat consoles in the profile of the cuffs cm

-: "engage and the U-Schenkcl in the overlaps with one another are welded. It is advantageous that the seat board consoles are narrower and lighter than the supports and stands, because they are at the height of the board restlessly seated student on the chair in sideways

.10 Direction of forces exerted in the lower area The chair is subject to greater stress and should therefore be chosen more vigorously.

It is particularly useful and increases stability. the overlaps at the nodes are relative To make a large area, but the rest of the U-profiles to make it as easy as possible. That happens! through this, that the height of the legs of the U-shaped Bleehbiesjcteile from the nodes to your favorite find preferably steadily decreases. Even with the bent sheet metal parts, the profile of which they !, towards the Ender tapered, a practically waste-free punching from sheet metal does not present any difficulties.

To further increase the lateral stability and the Torsion resistance, it has proven to be advantageous

4s sen that in the inner thighs of the Biechbie geti-ile in the area of the overlaps or knots points recesses are provided through which the ends of the two side parts connect with each other Cross victories up to the outer thighs of the

^w supports or stand buyers are passed through.

To further increase the strength at lower additional costs, the cavities are wiped / wiped the legs of the sheet-bending parts are at least partially filled with molded pieces. That allows A reduction in the sheet metal thickness of the runner profile without the risk of bending in the event of lateral impact loads and also gives the chair a more pleasing appearance and carries it, because it removes dirty corners, also essential for hygiene and cleanliness in the school hall, the fittings are conveniently placed in the area of the standing runners with their surfaces lower than the upper edges of the U-legs so that they can pass through the The shoes of the uneasy pupils sitting on the school chairs cannot be damaged.

^fi 5 In the area below the consoles and on the front of the supports, the shaped pieces, which are also advantageous for improving the torsion-resistant wedge and for reasons of beauty, can be

If the technical purpose is to be used, the gaps in the shape of rubber or a soft elastic plastic material and lets them protrude over the upper edges of the U-legs. If necessary, if the Kuien chairs with their u Sit / Konsolen at the cleaning room at the Table top are hung in a known manner (see FIG. DT-PS 1 118 514) the surfaces and the Front edges of the school table tops protected against damage. Iu

The L: finding wial hereafter to Fland a ti. tier drawing illustrated embodiment he purifies. F.s shows

Fig. 1 is a side view of an inventive KuFeiistuhls, F 1 g. 2 shows a section along line 11-11 of FIG. 1,

F 1 g. 3 the corresponding section in the area of the runner of a side part in approximately natural size,

F 1 g. 4 shows the corresponding section in the area of the Sir? Console of a side part.

. _i:; ", cT.cii shrills along line VV of I ι · _ '. 1 in <■■ ... ' natural size.

1 .-. η Jen cut Jes Si.ihlbleehbn.-jLieiis one

: £ ',' emeu Sclniitl after line \ ll Ml Je; long. ! | :, ei nc other arrangement Jc ^- cross victories in e: u; i na t :. .. her (irolie,

: L ^-> <a section along line VHLVHI (.ic, - [■ ι c 7. u ^u a jewelry line by .X-IX Jer ^l:;..! G. 7.

Uci S: uh! hat /v.ei Siandkufen S. -.iie al ·, U-iorum. ¹ p: ^- . .liiicne sheet steel bent parts manufacturedMclli --ind. The iK.! I ..! C! Jer superscript U-legs 1 / are of a \ n Jer near eggs Langsmüie the runners located high portion \ b by Jen [ '.nderi towards schooled abfailenJ so Dall the skids, m SeiienriH jl ·> ι · 1) according to the two l.nderi tapered towards smJ

V ¹ Di 'Jen skids! yell in the h ·.> h <-π Vhschriit! i b ! obliquely upwards to the rear gei kneeled stüi / cr; i from I) ^ c are ICSC enl.i'ls, ils U-shaped profiled SiahlhUch- b- <IZC '-.' ilc formed and si) beniesen that she / v * is. hen Jic upwardly directed U-leg Lv Jer skid;] I fit into it. The socket 3 siml si- in Jen nach, ib '.' Ii ijffenen chin cavity of the runners I hinem ^ es; ellt. dalj her U-i'rnfil to vurii. J h. against Jen Hardly iipicrh.iü 'des Suihlsit / es, ■> ffcn is; The U Scl'ieiikel 1 .; Jc ¹ -.tutzii i are in the exemplary embodiment! F- "i g. I in Jer I -hcrlappmir um Jen U Schenkeln L / Jer SianJkuf.'i I by some points of vision marked with 4", ι.irr miteiniiti'.ier connected. The possibility Jer IVnstsi hweiRuni "en: ¹ !)! yourself thereby. JnB the legs from the outside and inside are suitable for the aisei / eri from Si Inveißciektrodci: /. Pie U See kcl 3.1 of the supports 1 have their greatest mash down in the F-'area of engagement with Jen runners 1! : and are with you: K.indi'rn look like this. d.ii.i live borrowed up to the obcicn Lr, ic! lerauf on a Bruihteil abin-mi An Steile Jer I'unkiseliweißimi ', could also c: ne' .leiter below in / iisheide nu '>·' i g. 7 bi ^{l (i} mentioned inside μ hvwissung on ucn! 'Other of the U legs 3, / be provided.

The seat plate 5 is projecting on approximately horizontal position consoles 6, for example in miitels I ^- 'ι g. I indicated Nicicn 7 attached. F) ic Sil / consoles (> are as STIII / s 3 of a U-shaped profile ¹ Stalilblechbiigeteile formed -n downward U-Sch <: are rkcl with f> n bezeichnei They are sized. that they, 'wipe the U-legs \; i of the supports 3 fit in. In Fig. b , the cut of the

⁽⁾ 5 Siuhlbleehprufils a seat console 6 is shown, the bending lines being shown in dashed lines. In the embodiment example F i g. I the legs 3 <i and 6a rigidly connected to one another by some weld points designated by 8. Here too, according to the example F i g. 7 to 9 an internal weld can be provided on the edges of the U-legs 6a. The U-legs 6a are trimmed at their edges so that their height decreases towards the free end.

The two side parts of the chair consisting of the stand 1, the support 3 and the seat console 6 are held together in the exemplary embodiment by two transverse webs 9 and 10, one (9) of the two stand runners 1 and the other (10) at the level of the support strips 6 the two supports 3 connects to one another. The transverse webs 9 and 10 are in the exemplary embodiment F i g. 1 to 5 butt-welded to the mutually facing U-legs la and 3a of the two side parts. In the Alis guide example, the transverse webs 4 and 10 are shown as square tubes. You can ·; but also another profile hah-n, /.B. be formed by flat steel or U-shaped profiled Siuhlbleehteile. (Iegebcnenfalis may be omitted Jer upper crosspiece 10th \ m upper LnJe is au Jen on the üitzplatte 5 hm ausr.igenden support alarm / .en 3, a backrest 11, for example by means of rivets 12, beiesngt

1 "■ '■ -.- Stand skids 1 can be placed on their underside in Jer : -iahe of your linden leiter Π have.

The n.ieli gutter cavity of the runners 1, which is open at the top is filled out in the exemplary embodiment Jurch l'üllstück 14, which can consist of wood, plastic or metal and are glued in, for example. F3ie FuII- - Pieces 14 can grain outward through a metal foil 15 covered scm (Fig. 3). The U-legs protrude a little nbi.T the Fiillsüiike 14, 15 out, so that the Oberilache the fill piece is slightly recessed and is therefore well protected against damage.

In the support strips 6 for the seat / plate 5, which are open towards each other, molded tires 16 made of an elastically flexible material protrude downward. /. 13. Ciummi or toilet plastic. used (Fig. 4). The I ormstrip 16 gripper, in the FIG. As can be seen, a preferably hollow part 16;) between the U-legs 6a of the support rails 6 and are supported with a shoulder \ 6h on the edges of the U-legs fia. /wiper. The U legs 6a are fixed by tension and, if necessary, by means of an adhesive.

Similar shaped strips 17 protrude forward on the supports 3, which are open to the front, /. Between the U-legs 3 ;; attached (Fig. 5). In the example! the shaped strip 17 extends below the brackets 6. However, such a shaped tire can also be attached above the seat / phtte. In the embodiment according to I 'g. 7 to 9 pass through the transverse webs 9 and 10 i '; e overlapping U-legs L) and); which connect the two side parts of the chair at the two nodes; or ia and 6a of the standing runners 1 and the supports 3 or the supports 3 and the .Sitzkonsolen 6 in mutually overlapping cutouts 20 or? 1 and are with the adjacent U-legs 3a of the supports 3 b ^ w. 6a of the consoles 6 are welded to the externally accessible edges 22 and 23 or 24 and 25. In this way, the welding points for the transverse webs 9 and tO are also invisible from the outside. In addition, in this embodiment the U-legs la and 3a or

nd β: ι in the overlaps within the profile space by edge welds 2ft and 27 b / .w. nd 29 connected to each other. But it could also be η F i g. 1 connection shown by welding points.

For this purpose 2 sheets of drawings

Claims (4)

I 778 480 patent claims: 1.Skid-base chair in steel construction, especially for use in schools, the side parts of which consist of a floor-level runner, a support extending obliquely upwards and backwards from its longitudinal center and a seat console projecting forward from this and at least one transverse inserted between them -Iteg are held together, all parts are welded together, characterized in that the stand runners (1), the supports (3) and the seat consoles (6) are designed as one-piece U-shaped profiled sheet steel bent parts, ivobei the U-profile of the stand runners above, that of the supports to the front and that of the seat consoles is open at the bottom, and furthermore the supports (3) in the profile of the stand runners (1) and the seat consoles ffi) in the Profi! the supports (Y) engage and the U legs (*.;. 3.;. 6, i) are welded together in the overlaps. 2. kuiensiuhl according to claim i. characterized, that the Slandk. fen (1), the supports (3) and the sit / Konsolen (b) in. itenrilj \ < > n the nodes from tapering · mim. 3. Kuiensiuhl according to claim 1 or 2, characterized in that in the inner legs of the bent sheet metal parts in the region of the overlaps or nodes (';). 3a b / w. 3y. b, i) Recesses: are provided through which the ends of the beidi.n side parts (1. Ϊ. 6) connecting cross webs (9. 10) to the outer legs of the supports b / w. Siizkonsolen are passed through. 4. Kufciistuhl according to claim] and 2, characterized in that that the cavities / wipe the legs of the U-shaped sheet metal parts through Fittings (! 4. 16) at least partially filled out : nd. ■). Skid chair according to claim 4, characterized in that that the in clic cavities /. between the legs of the sheet metal parts inserted moldings (16) in the area of the seat consoles (6) and in the area of the supports that adjoins the bottom (3) consist of elastically resilient material (/ .. B. rubber or soft plastic) and over the The upper edges of the legs protrude.