IL112774A - Shelves - Google Patents

Description

IMPROVEMENTS IN AND RELATING TO SHELVES present Invention concerns shelf more particularly relates to arm shaped members which carry the shelf boards or The invention is thus applicable to all types of shelf constructions froth those generally used in domestic kitchen shelves for storing and other vessels as well as comestible and also in industrial plants and raw materials are stored on The invention is also applicable to shelves used in commercial premises where goods for are stored and ited on shelf The invention also find use at scaffolding where the individual shelves form platforms which workers stand while attending to repair The invention specifically concerns a of the said arm shaped shelf supporting Traditionally the said support members are made of metal using conventional casting or smithery It is the main object of the present invention to provide a method which makes it possible to produce the arm shaped support members from generally available sheet A further of the invention to permit the production of the by conventional tools and The method of the said arm shaped members includes two phases Of the n a first phase a blank is punched or stamped from sheet advantageously of sheet which in a further phase is processed to become the final first phase is conventional punching or stamping procedure which ts performed by of machinery of generally known excentr c presses while the processing of the blank performed by using folding or edging Accordingly the tnventton relates to a method of fabricating arm shaped members for carrying thereon board or planks constituting shelves of shelf the method comprising a first and preliminary step of punching or stamping a blank from sheet metal such blank assuming the shape of a substantially four sided elongated plate which is tapering in the towards one of the two shorter edges of the the oppositely disposed of the two shorter edges of the plate carrying an integrally thereto connected the said subsequent processing of the Blank comprising the step of bending off the said integral the portion to a position of extending normally of the blank planned to form the main portion of the arm shaped bending the edge portion of the blank through In a practical embodiment of the final product there is provided a stiffening rod which extends obliquely between the portion originally integrally connected to the blank and at processing bent to be at relative to the main surface of the final arm shaped and the underside of the arm shaped The above and further features of the invention will become clear from the following detailed description which refers to the accompanying is a schematic plan view of the blank punched from sheet 2 is a perspective view of the final arm shaped 3 is a fractional view of a detail of the arm shaped turned upside Turning first to 1 there is shown a blank comprising an elongated main portion 1 and a second therewith integral portion As can be seen the portion 1 is defined by oppositely disposed long and and a short blunt end edge To the fourth end edge of portion 1 is integral ly attached the smal ler portion Halfwa between the portions 1 and 1 inearly the of contact between the two portions an incision In portions 1 and elongated apertures 3 are made at the punching The Broken on portions 1 and 1 indicate the bending steps are to be practised to resul t in the final products shown in Turni ng now to 2 the portion 1 is shown as having been bent double l ine 2 of 1 and indicated by arrow The so formed part 4 i s then bent to extend in a plane which is normal to what became the main surface area of the arm shaped member shown in Fig The final formation of the member had been arrived at by bending off rearwardly the part of the blank indicated by nes X and Y to form a It should be appreciated that the position of the blank shown in to be imagined as having been prior to processing the as if the blank had been rotated through about its longitudinal Processing the blanks comprises the bending the strip defined by edge and broken line Z through thus forming a border strip 7 bending the tapering portion between broken l ines X and Y rearwards thus forming a support for theshel f carrying surface 5 being off the said support the border strip 6 Between part 4 2 and the underside of the main porti on 5 of the arm shaped member extends an oblique rod 6 increasing the rigidi ty and carrying capacity of the arm shaped The latter feature has been shown also by the Fig 3 which depicts in a fractional view part of the member shown in an inverted position insufficientOCRQuality

Claims (1)

1. CLAIMS i 1, A method of fabricating arm shaped members for carrying thereon board or planks constituting shelves of shelf structures , the method comprising a first and prel iminary step of punching or stamping a blank from sheet metal , such blank assuming the shape of a substantial ly four sided elongated plate which is tapering in the direction towards one of the two shorter edges of the plate, the oppositely di sposed of the two shorter edges of the pl ate carrying an integrally thereto connected portion, the said subsequent processing of the blank comprising the step of bending off the said integral portion to a position of extending normal ly to the area of the blank planned to form the main portion of the arm shaped body} bending the marginal longitudinal edge portion of the blank through 90° , 2, The method ; f cl aim » characterised thereby that it comprises the steps o roviding a stiffening rod which extends obl iquely between the portion original ly integrally connected to the blank and at processing bent to be at 90° relative to the main surface of the final arm shaped member and the underside of the arm shaped member. 3, Shelves whenever comprising arm shaped members on which shel f boards rest such members recognizably being produced by the method of ela1m l . 4, The method of fabricating arm shaped members, substantially as hereinbefore described with reference to the accompanying drawings .