Pipes and tubular conduits – Flexible – Joined sections
Patent
1996-08-09
1998-11-24
Brinson, Patrick F.
Pipes and tubular conduits
Flexible
Joined sections
138110, 138118, 285166, 285223, 285264, F16L 2704
Patent
active
058394761
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a cable guide consisting of articulated individual components which are open at the front and made of elastomeric plastic, where the articulation axes of the joints run transversely to the longitudinal axis of the cable guide and the individual components are linked together, at least in sections, in such a way that the articulation axes of two adjacent components are positioned at 90.degree. to one another.
This kind of chain is known from DE-OS 2 220 044, for example.
As regards the rotation of several adjacent components, these kinds of cable guides have two degrees of freedom and can thus be angled in several directions over long sections. They serve to protect cables from tensile stress, excessive bending stress and other external influences. These cable guides known from prior art consist of identical components in the sections in which they have two degrees of rotational freedom, where every second component is positioned at 90.degree. to the longitudinal axis of the cable guide. The components can have a largely rectangular cross-section, where the angular deflection of the components relative to one another is limited in order to protect the cable inside from excessive bending stress. The articulated components form a cable duct into wich the cables can only be inserted through the entry and exit openings located at the ends along the longitudinal axis of the cable guide. It often proves to be very tedious to insert the cables into relatively long cable guides, especially if the cable guide is angled several times in various directions and must carry several cables.
In the case of cable guides, or so-called energy guide chains, which, as for example described in DE 39 30 291 C2, have one degree of freedom, it has been standard practice for some time to equip them with removable covers, which then permit the cables to be easily inserted into the cable guide from one side. However, in the case of cable guides of the type described at the beginning, this method results in considerable difficulties due to the fact that the individual components are each arranged at a rotational angle to one another.
Thus, the task of the invention is to further develop a cable guide of the type described at the beginning, such that the cables can be easily inserted into it.
The task is solved in that two different, alternating basic shapes are included for the components in the section concerned, each of which has an openable wall element which extends across the entire length of the component concerned and is positioned in such a way that the openable wall elements of adjacent components with offset articulation axes are located on the same side of the cable guide, with each component having opposing holes and matching opposing pins in order to form an articulated connection with two adjacent components and one component having a cover, which constitutes the openable wall element of this component, provided with a hole and the adjacent component having a cover, which constitutes the openable wall element of this component, provided with a pin.
This expediently results in a cable guide with two degrees of freedom, where all openable wall elements are positioned on one side of the cable guide. In this context, the wall elements extend across the entire length of the component concerned so that, when they are opened, the cable guide has a continuous opening along its longitudinal axis on one side. Starting at one end of the cable guide, the wall elements can be easily opened one after the other, so that the cables can be inserted effortlessly. In order to form an articulated connection between one individual component and two adjacent components, the components have opposing holes and matching opposing pins, where one component has a cover provided with a hole and the adjacent component has a cover provided with a pin. The holes and pins represent the respective articulation axes. This means that the holes are positioned at an angle of 90.degree. to the opposing pins in at least some of the comp
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Brinson Patrick F.
Igus Spritzgussteile fur die Industrie GmbH
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