摘要:
A modular pultrusion die containing removable and replaceable inserts (24, 26, 28) is described. The use of small removable and replaceable subunits in a pultrusion die allows for a variety of pultruded profiles to be formed more rapidly and substantially less costly than existing non-modular dies.
摘要:
A synthetic wood structural member having at least one continuous fiber composite reinforcing rod element positioned within it to increase the stiffness of the member. The longitudinal axis of the continuous fiber composite reinforcing rod element is essentially parallel to the longitudinal axis of the synthetic wood structural member.
摘要:
Through at least part or all of the thickness of the panel a plurality of channels extends in which there are structural stiffening elements comprising a resin-based material.
摘要:
A scaffold plank assembly for engagement to a scaffolding frame. The scaffold plank assembly comprises an elongate, non-metal plank which defines opposed first and second ends and at least one interior cavity. Attached to respective ones of the opposed ends of the plank is a pair of end connectors. The end connectors each comprise a main body, and at least two arms which are attached to the main body. Attached to and extending from the main body is at least one attachment finger which is extensible into the interior cavity of the plank. The main body also includes at least two notches formed therein which are sized and configured to receive respective ones of the arms of another end connector in a nesting fashion. Additionally, disposed within the attachment finger of the end connector is an aperture which may be coaxially aligned with a pair of apertures disposed within the plank when the attachment finger is fully advanced into the interior cavity thereof. These coaxially aligned apertures are adapted to receive an elongate pin which, when advanced through the apertures and secured to the plank, maintains the end connector in firm engagement to the plank. The plank itself may further be provided with a non-slip texture which is formed directly within the outer, top surface of the top wall thereof.
摘要:
The process for making a multi-layer panel consists of applying a first (3) and second (4) fibre-based material on the opposite faces of a core (2) of the panel (1), joining the first and second material through a needling operation through the thickness of the core, carrying out the impregnation of the first and second fibre-based material with a resin-based material and introducing the resin-based material inside the needling holes (6) for their entire extension, and polymerising the resin-based material so that at least the polymerised resin-based material present in the needling holes defines a plurality of structural rigidifying elements (5) that connect the first and second fibre-based material.
摘要:
The device for absorbing shocks and vibrations particularly for a bicycle comprises at least one shock-absorber element (2) with first means (3) for connection to the frame (4) of said bicycle and second means (5) for connecting to the saddle (6) thereof. The shock-absorber element (2) comprises at least one first and one second rod-shaped element (7, 8) with the first ends facing towards the frame (4) rigidly fixed to the first connection means (3) for locking them inside the saddle post (9) of the frame and the second ends facing the saddle rotatably hinged with the second connection means. The procedure for absorbing shocks or vibrations particularly for a bicycle consists of rotate-translating the saddle of the bicycle during the shock and/or vibration acting on its frame keeping the saddle parallel but set bank with respect to it rest position so as to keep its distance from the pedals of the bicycle substantially unchanged.
摘要:
Element (1) with very high mechanical resistance and high vibration absorption, comprising at least one internal core (20) composed of at least one first material (2) having predominantly high mechanical characteristics, and united, through chemical bonding only, with at least one second material having predominantly highly elastic characteristics; the embodiment method consists in automatically uniting through chemical bonding a first material with predominantly high mechanical characteristics with at least a second material (3) with predominantly highly elastic characteristics in order to form a core (20) to be coated with at least a third material (11).
摘要:
A process for manufacturing ladders comprises the following steps: arranging a plurality of rungs (2) of a material comprising a plurality of reinforcing fibers (2a) associated with a binding resin (2b) and each having at least one coupling portion (2c); arranging at least one primary upright length (3), preferably of a material comprising a plurality of reinforcing fibers (3a) associated with a binding resin (3b); mechanically linking the coupling portions (2c) of the rungs (2) to corresponding engagement regions (3c) of the primary upright length (3). The linking step involves bringing at least one of the binding resins (2b, 3b) to the fluid phase at least close to the engagement regions (3c) and/or the coupling portions (2c). The binding resins (2b, 3b) are thermoplastic polymeric materials and the step of bringing the binding resins (2b, 3b) to the fluid phase takes place by melting of the binding resins (2b, 3b). The binding resins (2b, 3b) are chemically similar to each other and they are preferably identical with each other.
摘要:
The device for connecting profiles comprises a body exhibiting first and second connecting means on each of its opposed walls adapted for respectively engaging on a first and second portion of each profile, the first and the second portion being at different distances from the axis of said profile.
摘要:
The junction system for joining a filiform element (2) to a connection element, possessing a tubular element (3) fitted on an end section of said filiform element (2) and substantially having an eye (4) for hooking said connection element.