A COLLAPSIBLE ARTICLE OF FURNITURE

Abstract: There is disclosed a collapsible bed which has a head frame (12) and a foot frame (14) that are of shaped metal tube. At each end of each frame there is a "U" shaped recess (22). Two bars (16, 18) extend between the frames (12,14). At each end of each bar there is a disc (24) with a peripheral channel (26). The discs (24) seat in the recesses (22) and lock therein. A sheet of material (20) extends between the bars (16,18), the bars passing through casings on opposed sides of the sheet. The inner sides of the recesses (22) of each frame (12, 14) slope towards one another to assist in guiding the discs (24) into the recesses and to stretch the sheet of material (30).

Description: This invention relates to an article of furniture that is collapsible and to a kit therefor. More particularly, the invention relates to a collapsible bed. FR-A-2321255 describes a collapsible article of furniture comprising: a first and a second rigid support member, which support members are spaced apart, each support member having a pair of substantially U-shaped receiving portions, each U-shaped receiving portion comprising a base surface constituting a support surface region and a side surface constituting a guiding surface region; a pair elongate elements each extending between the first and second support members, the elongate elements being identically shaped; and a flexible web secured to the elongate elements and extending therebetween. According to the present invention, such a collapsible article of furniture is characterised in that each elongate member has a pair of disc components, one of which is mounted at each end thereof and which are received in the U-shaped receiving portions of opposite support members, the web being stretched and made taut when the disc components are inserted into the receiving portions, the side surface of the U-shaped receiving portion constituting the guiding surface also constituting a stretching surface; in that each support member includes a shaped length of tubing secured to which are upright support elements forming a pair of legs; and in that each elongate element is provided with restraining elements capable of restraining the elongate elements against longitudinal movement relative to the support members, the restraining elements taking the form of a peripheral channel provided on each disc component. The article of furniture may be provided in kit form. Thus, the invention extends to a kit for such a collapsible article of furniture. The guiding and stretching surface regions of each support member may slope towards one another. Conveniently, each guiding and stretching surface region may be at an angle of between 100° and 105° to its support surface region. Each support member may also define a pair of locking surface regions, a locking surface region extending upwardly from each support surface region on the opposite side thereof to its guiding and stretching surface region. In one form, each U-shaped receiving portion may have, in addition to the base surface that constitutes the support surface region and the side surface which constitutes the guiding and stretching surface region, another side surface which constitutes a locking surface region. Spaced restraining formations are provided on each elongate element, that are engageable with those portions of the support member that define the support surface regions to restrain the support members against longitudinal movement relative to the elongate elements. Each elongate element carries a pair of disc-like components that are spaced apart and are receivable on the support surface regions, these components having the restraining formations. Each component has a channel, the sides thereof constituting the restraining formations for that component. Preferably, each component is circular and its channel extends around its cylindrical extremity, and each support member has an arcuate transition region, with a radius that is similar to that of the components, between each of its support surface regions and guiding and stretching surface regions. The elongate elements may be rotatably secured to the web. The web accordingly have loops or casings in which the elongate elements are received. In one form, the support members may be of shaped lengths of tube and uprights. The invention is now described by way of an example with reference to the accompanying diagrammatic drawings. In the drawings, Figure 1 shows a three-dimensional view of a collapsible bed in accordance with the invention in its collapsed configuration; and Figure 2 shows a three-dimensional view of the bed of Figure 1 in its erected configuration. Referring to Figure 1, a bed is designated generally by the reference numeral 10. The bed 10 comprises a pair of support members in the form of frames 12 and 14, and a pair of elongate elements in the form of collapsible bars 16 and 18 respectively. Each frame 12, 14 is formed from tube 20. Each length of tube 20 is shaped to form a pair of spaced apart substantially U-shaped recesses 22 within which discs 24 of the bars 16,18 are removably receivable. Each disc 24 has a channel 26 formed in its periphery so that when the disc 24 is inserted into one of the recesses 22 of the frames 12,14, that portion of the frame 12,14 forming the recess 22 is snugly received within the channel 26 of the disc 24. The discs 24 are fast with the ends of the bars 16, 18. The frames 12 and 14 each include legs 28 depending from those portions of the tubes 20 defining the recesses 22. An elongate sheet of a flexible material, such as a canvas material, is provided to serve as a bed base 30. Casings 32 are defined in the longitudinal edges of the bed base 30 within which the bars 16 and 18 are receivable. The bars 16 and 18 are each provided in two sections 16.1 and 16.2, and 18.1 and 18.2 respectively. The sections 16.2 and 18.2 have a thinner region 16.3 and 18.3 respectively which define spigot-like formations 34 which are insertable into socket openings 36 in the free ends of the sections 16.1 and 18.1 respectively. Referring now to Figure 2, the bed 10 is shown in its erected configuration. To erect the bed 10, the sections 16.1 are inserted into the casings 32 of the bed base 30 from one end of the casings 32. The sections 16.2 and 18.2 are then inserted into the casings 32 from the other ends thereof so that the spigot formations 34 are received within the openings 36 of the sections 16.1 and 18.1. The frames 12 and 14 are then placed in a desired location with the recesses 22 of the frames 12 and 14 in alignment. The discs 24 of one of the bars are inserted into those recesses 22 of the frames 12 and 14 on one side which are aligned with each other. The discs 24 of the other bar are then inserted into the recesses 22 on the other side of the frames 12 and 14 so that the bed base 30 is stretched and made taut and spans the space between the bars 16 and 18. To facilitate insertion of the discs 24 into the recesses 22 and stretching of the bed base 30, portions 38 of the tubular members 20 which form part of the U-shaped recesses 22 are angled at about 10 o to 15 o to the vertical and slope towards one another. Once the discs 24 are in the recesses 22, they are securely held therein. It is an advantage of the invention that with the an article of collapsible furniture in accordance with the invention, such furniture can be stowed easily and in a space-saving manner when not required for use. Also, the articles of furniture can be relatively quickly erected by a single person when required for use and are extremely stable.

Claims: A collapsible article of furniture (10) comprising: a first and a second rigid support member (12, 14), which support members (12, 14) are spaced apart, each support member (12, 14) having a pair of substantially U-shaped receiving portions (22), each U-shaped receiving portion (22) comprising a base surface constituting a support surface region and a side surface constituting a guiding surface region; a pair of elongate elements (16, 18) each extending between the first and second support members (12, 14), the elongate elements (16, 18) being identically shaped; and a flexible web (30) secured to the elongate elements (16, 18) and extending therebetween; characterised in that each elongate element (16, 18) has a pair of disc components (24), one of which is mounted at each end thereof and which are received in the U-shaped receiving portions (22) of opposite support members (12, 14), the web (30) being stretched and made taut when the disc components (24) are inserted into the receiving portions (22), the side surface of the U-shaped receiving portion (22) constituting the guiding surface also constituting a stretching surface; in that each support member (12, 14) includes a shaped length of tubing (20) secured to which are upright support elements forming a pair of legs (28); and in that each elongate element (16, 18) is provided with restraining elements capable of restraining the elongate elements (16, 18) against longitudinal movement relative to the support members (12, 14), the restraining elements taking the form of a peripheral channel (26) provided on each disc component (24). An article of furniture (10) according to claim 1, wherein the first and second support members (12, 14) are identically shaped. An article of furniture (10) according to claim 1 or 2, wherein each U-shaped receiving portion (22) comprises a side surface which constitutes a locking surface region. An article of furniture (10) according to any of claims 1 to 3, wherein each guiding and stretching surface region is at an angle of between 100° and 105° to its base surface. An article of furniture (10) according to any preceding claim, wherein the elongate elements (16, 18) are rotatably located in casings in the web (30). An article of furniture (10) according to any preceding claim, wherein each shaped length of tubing (20) and its corresponding pair of substantially U-shaped receiving portions (22) are integral with each other. A kit of parts for a collapsible article of furniture (10) according to any one of claims 1 to 9.

Inventors: EWERT, WERNER HANS
Applicants: BONATZ, HANS
Application year: 1987
Main classification: A47C19
IPC codes: A47C19, A47C17