| 摘要 |
The invention relates to assemblies of elements 1a, 1b made of plastic such as a resin reinforced with fibres or with metallic elements, which are shaped in the form of a ladder, that is to say comprising at least two longitudinal members 11a, 11b and crossmembers 12a, 12b. In order to avoid any drilling in the field when assembling two longitudinal members of two elements and thus to overcome any migration of moisture into the longitudinal members via the drilling of these, each transverse member 12a, 12b of the elements offers an internal conduit 16a, 16b and the device comprises two dowel pins 2a, 2b respectively fitted into the internal conduits of two transverse members of the elements, a fishblade 4 applied against the two longitudinal members and having slots 44 facing the fitted dowel pins, and two screws 3a, 3b screwed into the fitted dowel pins in order to immobilise them in the conduits 16a, 16b and to press the fishblade 4 against the two longitudinal members 11a, 11b. Preferably, no metallic element is visible in order to confer excellent electrical insulation. <IMAGE>
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