A BED OR SITTING FURNITURE FRAME

Abstract: A bed frame (1) consisting of two U-shaped end sections (2) interconnected by side bars (3) with slats (4) forming a furniture bottom. The side bars being provided, on the interior side (10), with through recesses (11) for housing said slats in an arbitrary or a predetermined position, e.g. by means of plastic lining with pockets for each slat. The side bars (3) and/or the end sections (2) being formed out of a metal sheet, the free longitudinal edges of which forming part of the frame bottom (12) by overlapping each other and constituting the load carrying side of said recesses. The one of these longitudinal edges being bent around the other to form triple wall thickness. The upper and/or the lower side of side bars (3) and end sections (2) contain dovetail-shaped through grooves (13) for receiving fasteners (22) and a ticking (23). The frame may be manufactured as a welded unity or as a set to be assembled by customers.

Description: ^ ._. . „ . 7 1 The present invention relates to a bed or sitting furniture frame of the type set forth in more detail in the preamble of patent claim 1. Known bed furniture frames if this type and similar types have various drawbacks. These frames often are made of wood and require much manual work, and still the resulting stability only to a certain degree meets the demand people have. A semi- or fully automatic production is hardly possible. Other known frames are made of metal, completely or mainly. The metal parts of such frames are connected to each other by means of welding or bolts, rivets or the like, which requires manual work, a far- reaching automatic production being ruled out. Particulary the manufacture of the bottom is difficult, when the frame is made of metal, since the attachment of the slats is problematic, and consequently, often a spring bottom seems to be the only practical solution. However, spring bottoms often are undesirabl and usually cause noise, when the bed is used.Another difficulty arises in fastening a ticking to a frame. Consequently, the object of the present invention is to suggest a new furniture frame, which in a far-reaching way can be autoπta ticly mass-manufactured, has high stability and also can be ass- embeld by laymen in their homes. Sale of the frames should be possible in a space-saving manner in parcels having small dimen¬ sions and due to an assembly through the buyer additional price advantages should be obtainable. Thus, a bulky construction is to be avoided. The invention should also make an appealing ornamental frame design possible. Finaly, it should be possible to offer, despite subsequent assembly work, all parts finished, and the finishing should be of the type, which even after exten¬ ded use does not need any subsequent finishing. Also, hygienic requirements should be met. The present invention solves the above-mentioned problems to a great extent by means of a new frame design, according t-o the characterizing clause of claim 1. Other characterizing features and advantages of the present invention will be apparent from the following description, reference being made to accompanying drawings, in which: Fig. 1 is a perspective exploded view of a bed furniture frame according to the invention; Fig. 2 is an end view of a preferred embodiment of a longitudina frame side bar according to Fig. 1 showing also the attachment of a ticking ; Fig. 3 is an end view of a preferred embodiment of a bottom slat of the frame according to Fig. 1; Fig. 4 shows a lining for the aforementioned slats ; Fig. 5 is an end view of a modified embodiment of a longitudinal frame side bar with attached ticking ; Fig. 6 is an underneath perspective view of a frame incorporating frame side bars and even end sections according to the profile shown in Fig. 5; and Fig. 7 is an underneath perspective view of the frame shown in Fig. 6. In Fig. 1 a furniture frame according to the present invention, e.g. for a bed, a sofa " or an easy chair, is generally indicated by 1. This frame is mainly made of metal and/ or plastic materi and comprises end sections 2, which via longitudinal side bars can be connected to each other, bottom slats 4 being inserted into the interior of the longitudinal side bars and connection pieces 5 being used to connect said end sections and said long¬ itudinal side bars. Each en section preferably comprises a U-shaped cross piece 6, the cross-section of which at least roughly being shaped as a standing rectangle and the shape and dimensions of which, at least as regards the connecting pieces 7, aligned with the long itudinal side bars, being adjusted to said side bars. The frame is, preferably, a hollow metallic profile, said connecting pieces 7 being inderconnected by means of a cross beam 8, e.g. by means of welding, which replaces an outer bottom slat and has bore holes 9, through which e.g. threaded bolts (not shown) can be inserted in order to fasten legs (not shown). Threaded bolts ot the like, which are fastened by means of welding can, of course, be used instead of bore holes. This type of end section is particulary stable and has a high torsional modulus, but is also compact and not bulky. Threaded nuts or the like can be used instead of bolts. The longitudinal side bars are each made of a hollow profile having a cross section shaped as a standing rectangle. They are preferably made of a metal sheet, which through bending has obtained the shape shown in Fig. 2. A through reces 11 in the longitudinal direction on the interior side 10 has a rectangular cross-section. The interior side 10 extends to the bottom side of recess 11, but the bottom side 12 of the profile is bent around said end shaped in this way. A stable con¬ struction is obtained in this way and precisely in the support area for said bottom slats 4 tripple material thickness and consequently a particulary high carrying capacity are obtained The bottom side 12 of longitudinal side bars 3 and end section has a through groove 13, which is open downwardly and widens in the profile, particulary dovetail-shaped. The groove is placed in a central position between exterior side 14 of the profile and the interior side of recess 11 and is provided to receive a fastening means 22, preferably a plastic or rubber molding at the edge for of a ticking 23 to surround the frame top and sides. Such a fastening means, e.g. a hollow rubber molding hav a round cross-section, widens inside groove 13 and thus in a simple and detachable way retains a ticking, which consequen¬ tly does not need its own fastening means and easily can be detached for washing purposes. Recess 11 as well as groove 13 contribute to an improved stabi¬ lity and particulary a high carrying capacity and torsional mod ulus of the longitudinal side bars according to the invention. The ruggedness of the tripple area below the recesses can, of course, be further improved by means of e.g. spot welding. When the bottom slats are to be inserted into recesses 11, either of them is preferably are coated with a lining 24, e.g. of plastic material, which is U-shaped and follows the contour of the bottom list, and consequently a metal/metal- contact is avoided and perhaps also a desirable clamping effect is attained. Such lining edges can also be provided with presha ed pockets 25 for the slats in order to facilitating, speeding up and improving in general the assembly work by laymen. Finally, the invention comprises said connection pieces 5, whic have an exterior profile shape, which is compl . ementary as to th interior profile of the connection ends of connection pieces 2 and longitudinal side bars 3 but which, for making Fig. 1 less complicated, have not been shown in great detail. In this way, the dovetail-shaped grooves can run continuosly all the way round the bed. However, this is not necessary, but a filling of the space above recesses 11 and possibly above grooves 13 may be sufficient. The connection pieces preferably are made of plastic material and are compact and have in the middle a peripheral collar 15, against which said connecting ends are t abut in order a metal/metal-contact in this area also. A locking between the said connecting ends is preferably achie ved by providing said ends with rearwardly and inwardly projecting laterally punched tongues 16 and 17 see Fig.s 7 & 8, which mesh with recesses 18,19 in said connection pieces, when the intended insertion position is reached, a following uninte ded removal being impossible. This technique is simple and doe not require any tools and is done automaticly, when said insertion position is reached. All the parts, shown and/or described, are to be delivered to buyers completly finished. All kinds of finishing processes an materials can be considered. Composite materials, particularly metals and plastic materials, preferably are to be considered. Sale can be effected in sets packed for assembling, which make storage, transport etc. more economical and results in other_ positive ways of handling the merchandise. The present invention is not limited to the embodiments, which have been described and/or shown above but can be modified and developed in accordance with the inventive concept in its enti¬ rety and the following claims in an arbitrary manner. Bottom slats 4, according to Fig. 3, preferably are made of metal and/o plastic material profiles having a C-shaped cross-section, the open side,of course, being turned downwardly and the upper side 20 preferably being provided with a longitudinal depression 21, which partly carries the transverse loads better and partly helps keep a atress in a particular prefered position on the bed. The free longitudinal edges of such slats can simply be bent inwardly and backwardly, which also contributes to a strengthhening. Fig.2 shows grooves 13 in the bottom or recess region only. Alternatively, as shown in Fig.s 5 - 7, the said grooves may extend through both in the upper and on the lower side of bars and end sections. In this way, bars and end sections may be turned such that the recesses 11 and thus the slat-bottoms are uppermost, which is de sirable for a certain type of furniture. Naturally in this case the groove shown in Fig. 2 is not neccesary. But with grooves on both sides, such a profile is universally applicable. The slats may in all embodiments, carry mattresses of any weight. While the main advantage of the present invention is the combina of side bars and bottom slats in the way shown and described, it is possible, off course, while maintaing these advantages, to manufacture a frame according to the invention fully assembeled. Arbitrary parts may be welded together with or without incorporation of e.g. connection pieces. The cross beams may be replaced by preferably reinforced slats and recesses 11 may extend into and/or all around end sections 2. The connecting pieces may, of course, be shorter so that e.g. the outer cross beams or slats are contained in the side bars. The embodiment shown in Fig. 6 can be either an underneath per¬ spective view exactly as shown or a perspective view from above/ in which latter case the slats should be turned to show the depressions on this side and not the C-opening.

Claims: C L A I M S 1. A bed or sitting furniture frame (1) comprising end sections ( interconnected by longitudinal side bars (3), slats (4) forming a furniture bottom, c h a r act e r i z e-d i n t h a t the sa end sections and/or side bars and/or slats are made of metal and/ plastic material, as known per se, and that the interior sides (1 of at least the side bars are provided with longitudinally throug going recesses (11) being integral parts of the respective frame parts, which recesses are provided to house the said slats. 2. A frame according to claim 1, wherein the end sections (2), th side bars (3) and slats (4) form parts of an assembly along with nection pieces (5) for connecting the adjoining ends of end secti and side bars. 3. A frame according to claim 2, wherein the connection pieces (5 are provided with a central peripheral collar (15) for keeping ap the said adjoining ends, and/or wherein the connection pieces and said adjoining ends are provided with intermatching recesses (18, and tongues (16, 17), respectively, to acieve a self-locking asse 4. A frame according to any of claims 1 - 3, wherein the end sect (2) and the side bars (3) are designed as hollow profiles, namely upright rectangles. 5. A frame according to any of claims 1 - 4, wherein the end slat (4) are reinforced and rigidly attachable to connecting pieces (7 of the end sections (2) or to the side bars (3), preferably by me of welds, and that these end slats or cross beams (8) are provide with bore holes, threaded nuts or the like (9) for the insertion legs of the furniture or with threaded bolts for the insertion in furniture legs. 6. A frame according to any of claims 1 - 5, wherein at least the side bars are made of a metal sheet bent to final shape with the gitudinal free edges both forming part of the bar bottom by over ping each other and the one free edge being bent around the othe to form tripple wall thickness, which preferably is further rein by welding, and wherein this reinforced part forms the bottom si (12) of the said recesses (11). 7. A frame according to any of claims 1 - 6, wherein at least on side of at least the side bars (3) contains a throughgoing, pref rably dovetail-shaped groove (13) provided to receive fastening means of or for a fabric or the like, which groove is an integra part of the side bar or the like for enhancing the rigidity of t frame part. 8. A frame according to any of claims 1 - 7, wherein the slats ( have a C-shaped profile with the C-opening facing downwards and upper side (20) of the slats showing a throughgoing depression ( to improve transverse load carrying capacity and for acting as a skid-means for a superposed mattress. 9. A frame according to any of claims 1 - 7, wherein the slats ( have a C-shaped profile, the free longitudinal edges of a metal sheet forming a slat being bent inwards and backwards to improve rigidity and transverse load carrying capacity. 10. A frame according to any of claims 1 - 9, wherein the frame designed to be manufactured in an assembled state with arbitrary parts welded together.

Inventors: ARNELL RAYNE, ARNELL, RAYNE
Applicants: ARNELL RAYNE, ARNELL, RAYNE
Application year: 1990
Main classification: A47C19
IPC codes: A47C19