Supports – Brackets – Shelf or scaffold type
Patent
1982-04-27
1985-04-09
Schultz, William H.
Supports
Brackets
Shelf or scaffold type
182 82, A47G 2902
Patent
active
045097119
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a device for detachably supporting a work stand or the like to a wall surface or the like, which includes a supporting member originating from the securing surface which supporting member is adapted to be hooked, by means of a coupling device fitted to the supporting member, in a holder element fixed to the securing surface and to be supported against the wall surface of means of a lower supporting surface below the coupling device.
The present invention relates to those scaffolds which are adapted to be hooked to holder elements which are fixed to a wall surface, the hull of a vessel or the like. The holder element is usually welded to the wall surface at a plurality of points at predetermined distances apart and levels, after which brackets are suspended and used to carry working platforms and the like. This type of scaffolding occurs inter alia in the shipbuilding industry where the hull of a vessel forms firm surfaces of weldable material. This type of work stand thus does not require any support at the base which is an advantage as a result of the fact that the work stand thus does not need to be built up over the whole height up to the actual work places.
BACKGROUND ART
A work stand of the kind indicated above is known through the Swedish specification No. 361 854 as laid open. In the known device, the holder element has the form of a T-section. With this device, the web of the T-section is exposed, in practice, to very heavy flexural stresses as a result of unforseen breaks and displacements in the work stand. These stresses have proved so great that in several cases the holder member has given way with serious accidents as a result. As a result of the demand for high bending strength and toughness in combination with a complicated shape in this connection, the holder element becomes very expensive to manufacture. Since these holder elements are usually intended for use once only, there is a strong requirement to produce the elements at relatively low costs.
THE TECHNICAL PROBLEM
The object of the present invention is to develop a device according to the present invention with which a stable and secure holding of the brackets is obtained while at the same time the holder elements can be produced at a low cost.
THE SOLUTION
Said object is achieved by means of a device according to the present invention which is characterised in that the holder element is made like a plate-shaped body which comprises at least one supporting surface adapted to be secured to the securing surface, and at least two hooking-up portions which are directed away from one another and each of which has its bearing surface at least partially turned towards the securing surface, and that the coupling device comprises, on the one hand two portions which are provided with guide surfaces facing one another which between them form a gap adapted to receive the holder element, and on the other hand two locking members which are situated in the gap and which are adapted to be hooked up each by its own hooking portion and on the other hand a device which can be changed over between a locking position and a releasing position and which, in the locking position, ensures that the coupling device is held in the firmly hooked state and which, in the releasing position, enables the coupling device to be unhooked from the holder element, and that the coupling device comprises at least one upper supporting surface by means of which the coupling device is adapted to bear against said wall surface in the connected state of the device.
DESCRIPTION OF THE FIGURES
The invention will be described in more detail below with an example of embodiment with reference to the accompanying drawings in which:
FIG. 1 shows a side view of a device according to the invention, mounted on a wall surface,
FIG. 2 shows a view from the back of only one coupling device included in the device according to the invention,
FIG. 3 shows a section through the device of FIG. 1 on the line III--III,
FIG. 4 is a persp
REFERENCES:
patent: 1457066 (1923-05-01), Kestner
patent: 2483758 (1949-10-01), Douglas
patent: 3270997 (1966-09-01), Gethmann
patent: 4021011 (1977-05-01), Karlsson et al.
Ramirez Ramon O.
Schultz William H.
Stallningsgruppen i Goteborg Aktiebolag
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