Fences – Rail – Connection
Patent
1994-04-28
1996-09-03
Wood, Wynn E.
Fences
Rail
Connection
256 67, 256DIG6, 182113, 403 79, E04H 1700
Patent
active
055516696
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a guard rail fitting. These guard rails are primarily intended to protect construction workers. If posts are used, these can be releaseably fixed in various manners, for example by being placed in sleeves embedded in concrete or being fixed by a clamping device. The guard elements used are in most cases boards which are fixed in the fittings by means of nails. Instead of boards, common pipes or aluminum profiles can be used which are then locked in the fittings with stop screws or lock screws.
In known fittings of the above disclosed type, each post is provided with an upper and a lower fitting which is welded in place, each having a lower rectangular opening for receiving a board and an upper holder which is open upwards so that a board can be laid in the holder. Such guard rails have been used for many years and function satisfactorily when the posts are directed in a normal vertical position and the fittings on the posts lie in alignment with each other.
However, difficulties arise in mounting guard elements if the posts are not parallel and/or are twisted relative to each other so that the fittings on one post are directed in another direction than the fittings on the next post. In order to make it possible to mount the guard elements, the positioning of the posts must then be adjusted or curved guard elements must be used, and this is often time-consuming and in certain cases not possible. Conventionally, a guard rail cannot be bent 90.degree.. Rather, at the corners two posts must be used, which is time-consuming and costly.
The purpose of the present invention is therefore to provide a fitting for the posts in question, such that the required changes in the positioning of the fitting can be carried out simply on a post which is mounted in a fixed position or at a fixing point which is anchored directly in the building structure.
The fitting according to the invention thus consists of two main components, which are rotatable relative to each other to the desired position for receiving the guard elements in the form of boards, pipes or aluminum profiles or guard elements formed as guard nets which can be locked to individual main components. The fitting as a unit is in turn supported by a pin or screw which is joined to the construction frame either directly or via a post. When being fixed to a post, the pin or screw is inserted through a hole in the post and is fixed by means of a locking device, either in the desired angular position or is rotatably fixed. For fixing directly in the building structure, i.e. at the edge of a wall, a hole is drilled for an expander plug or the like in the desired position. The fitting can then be screwed into the expander plug and be locked in the desired angular position. This adjustability makes it possible to set the main components of the fitting and the fitting as a whole in a variety of different positions adapted to the need in question.
A preferred embodiment of the fitting according to the invention and its different uses are shown as examples in the accompanying drawings and are explained in more detail in the following description.
FIG. 1 is a perspective view of the fitting, FIG. 2 shows the fitting in perspective prior to assembly, FIG. 3 shows a side view of the fitting mounted on a post, and FIG. 4 shows the fitting according to FIG. 3 as seen from above.
A fitting 1 for fixing the guard elements to the guard rail consists of an upper main component 2 which, by means of a clevis 4, is pivotally joined to a corresponding lower main component 6. The upper main component is made as a holder 2 which is open upwards with an outer leg 8 and an inner leg 10. The holder 2 is made of flat bar steel, and the legs are profiled and parallel to each other and form right angles with a connecting portion 12. The connecting portion 12 extends outside the inner leg 10 into a lug 14 with a hole 16. Each of the legs 8 and 10 has a rounded upper portion and a bowl-shaped cross-section. The bowl-shape of the cross-section is best revealed in FIGS. 3
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Reinklou Innovation AB
Wood Wynn E.
LandOfFree
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