Joints and connections – Flexible member is joint component
Patent
1999-01-20
2000-08-15
Knight, Anthony
Joints and connections
Flexible member is joint component
403269, 521852, 521255, 52707, 525871, 294 89, E04B 141, E04G 2112
Patent
active
061026077
DESCRIPTION:
BRIEF SUMMARY
SUMMARY
This invention relates to a device for connecting concrete components, consisting at least one rope loop, one end of which is anchored in the concrete component. The other end is looped and acts in conjunction with a fixing device set into the face of the concrete component, in order to flexibly bend the rope loop during the manufacture of the concrete component approximately into a right angle and to disengage it for the connection. An elongated U-shaped box with substantially uniform cross section is proposed as holding means, the floor of the box providing one or more openings for the rope loop together with means near the opening for holding the rope loop at a right angle relative to the longitudinal plane of the box.
This invention relates to a device for connecting concrete components, consisting of at least one rope loop, one end of which is anchored in the concrete component and the other looped end acts in conjunction with a fixing device set into the face of the concrete component, in order to flexibly bend the rope loop during the manufacture of the concrete component approximately into a right angle and to release it for making the connection.
A device according to the above type was disclosed in DE-OS 16 84 254. In this device, the rope loop or similar is bent by a fixing device in such a way that one part of the rope loop is anchored in the concrete component. The other part is fixed to the fixing device and can be raised to produce the operative position. Fixing of the rope loop in the fixing device is achieved by a nose-shaped component in the central plane of the fixing device. Similar devices are described in EP 0 534 475-A1 and DE 4 131 956-A1.
Apparatus of the type in question aim to create an arrangement in which, during manufacture of the concrete component and during its handling, the rope loop or similar element does not protrude beyond the external dimensions of the concrete component, in order to prevent the rope loop or similar becoming a nuisance during handling or stacking. However, after the concrete components have been displaced it should be possible to interlock the adjacent concrete components at their respective surfaces. This is made possible by the loose rope loop, which is subsequently covered by concrete cast over the top of the assemblies.
EP-OS 0 534 475 describes a different device for the purpose discussed. This provides a fixing block in the insert part, which fixes the rope loop without mechanical stress being exerted on the insert part, so that the fixing may be flexibly deformed and fixed largely at right angles.
This invention aims to further develop a device of the type first described above, so that is may be easily and cost effectively manufactured, avoiding interference during the manufacturing process and whereby the rope loop may be easily brought into the connecting position.
To solve this task, this invention takes a device of the type first described above and proposes that the fixing device is designed as an elongated U-shaped box of approximately uniform cross section, whereby the substantially flat box floor, which extends parallel to the face of the concrete component, is provided with an opening for the rope loop together with holding means near the opening, which hold the part of the rope loop which is to be anchored substantially at a right angle to the longitudinal plane of the box; and longitudinal retaining elements running in the edge regions of the limbs of the U, which hold the bent-over rope loop in the box, yet which enable the rope loop to be freed from the holding position.
This invention, through a simple component, i.e. the essentially U-shaped box, achieves an arrangement which may be easily incorporated into the shuttering used for the manufacture of concrete components. The dimensions, in particular perpendicular to the face of the concrete component, are small, so that generally collisions with other reinforcements are avoided. The box is sufficiently stable to withstand the bending forces. No special tools are require
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patent: 1285202 (1918-11-01), Hurley
patent: 2527063 (1950-10-01), Heuer
patent: 3124385 (1964-03-01), Neptune
patent: 4262951 (1981-04-01), Hoyer
patent: 4821994 (1989-04-01), Fricker
patent: 5548937 (1996-08-01), Shimonnhara
patent: 5649782 (1997-07-01), Frohlich et al.
patent: 5729951 (1998-03-01), Frohlich
Knight Anthony
Pfeifer Holding GmbH & Co. KG
Thompson Ken
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