Supports: cabinet structure – With movable components – Horizontally movable
Patent
1981-04-06
1984-04-03
Sakran, Victor N.
Supports: cabinet structure
With movable components
Horizontally movable
312330SM, 312343, 312338, 312348, 308 36, A47B 8800
Patent
active
044404611
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a slide means for drawers, more particularly for slides used in boxes. Whilst the following description discusses tool boxes and boxes in general the present invention is not so limited to use therein.
In the past there have been many means of facilitating the sliding motion of a drawer in a box or cabinet. These means basically provide a transverse support along the inside face of both ends of the box or cabinet. The drawer is supported by these supports and slides thereon. This means is particularly suited to boxes or cabinets of wooden fabrication where the attachment of the slides can be achieved by nailing or screwing. However, when considering tool boxes or cabinets, drawers must be supported in the various open positions as they may contain many heavy items. In this respect the aforementioned slide means provides inadequate. Additionally in view of the above criteria it is usual to fabricate tool boxes of metal hence nailing or screwing is not an appropriate fixing method. Basically with these types of tool boxes an attachment of drawer supports requires the provision of nuts and bolts or welding. As previously mentioned, as the load which must be carried by the drawers of tool boxes is much greater than for conventional drawers it is imperative when the drawer is pulled out that it be properly supported. To meet this need it is common to provide a support which utilizes a floating slide member.
In this respect the normal tool box drawer slide support structure comprises a set of three elements for each end of the drawer and box. The first element of each set is bolted or welded to the inside end faces of the box and is normally an inturned channel section. The second element of each set which is similarly of inturned channelled material is attached to a side of the drawer. In contrast to the first and second elements the third element is of general I beam cross-section and adapted to slidingly engage both first and second elements. Where this system is used it is undesirable to have either first or second elements disengaging from the floating member, i.e. the third element and accordingly, it is conventional to have engageable stop means attached to each element to prevent this from occurring. Thus in operation when the drawer is closed it is supported at each end by the three elements in interfitting engagement. In the open position the third element maintains continuity between the first and second element and permits the drawer to be fully opened. By "continuity" it is meant that the three elements are in telescopic relationship. More particularly the third element floatingly supports the weight of the drawer by distributing the drawer's weight over the three elements. The use of a channelled floating member has been found to be a very effective means of drawer support, however, it has some basic disadvantages. Firstly that system comprises three interengaging elements, the first and second elements being channelled and thus must be specially formed. Secondly, as these aforementioned two elements for each end of the box are channelled they are difficult to manually affix to the box and drawer respectively. This second aspect has added to fabrication costs. Accordingly whilst this system is best for tool boxes considering the load characteristics and robust requirements of these boxes, it nevertheless complicates the fabrication with a corresponding increase in cost.
In addition to this the conventional floating member comprises two pressed elements, these elements when attached together form a channel. In this respect the only type of affixing used is riveting by way of separate rivet elements. Thus to effect fixing, each of the pressed elements has at least two aligned holes drilled therein, then the elements connected by insertion of rivets through the aligned holes and subsequent deformation of the protruding portions of said rivets. As mentioned previously a stop element is attached to each end of the floating member. This is incorporated by the attachment of a sepa
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Powell George G.
Powell Reece J.
Sakran Victor N.
Sinclair & Powell Proprietary Limited
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