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(11) |
EP 1 840 292 A2 |
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EUROPEAN PATENT APPLICATION |
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Date of publication: |
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03.10.2007 Bulletin 2007/40 |
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Date of filing: 22.03.2007 |
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International Patent Classification (IPC):
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO
SE SI SK TR |
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Designated Extension States: |
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AL BA HR MK YU |
| (30) |
Priority: |
29.03.2006 PT 10345406
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Applicant: Fanha Nunes Ferreira Rebelo, Eduarda |
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2400- 077 Leiria (PT) |
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Inventor: |
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- The designation of the inventor has not yet been filed
()
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Spacer and protector capsule for steel rods |
(57) Spacer and protector capsule, that can be connected or not - (1), for application
in steel rods in concrete structures, acting as a spacer to the formwork, and/or as
protector capsule when a protector element in the extremity is connecting it - (1).
Spacer and protector capsule for iron rods simultaneously or not, applicable use for
all the diameters of steel rods, adjustable (4), made in any type of polymer, and
employed to keep the steel rods of any diameter not only protected as re-covered to
the prescribed distance(3) of the rules norms.
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[0001] The steel rods who constitute the concrete armatures must remain soaked in the concrete
to a minimum distance of the periphery in such way that they can't remain in contact
with the air to avoid the oxidation, for do not lose quality and never put in risk
the structure of the concrete. Therefore the world-wide regulations establish a minimum
distance of covering the iron rods to the periphery of the mass of the concrete. To
guarantee such distance its usual to use the most varied objects such as pieces of
concrete, plastic, rocks, etc. When plastic parts are used these, usually, have only
one or two diameters and therefore they serve only for a specific diameter of a rod.
With this invention it is intended to use plastic and recycled plastic conferring
it the possibility of, being an only part consisting by two supports (3) and a circular
serrated brace (4) that auto involving and holding the steel rod confers it an adherence
and resistance to the traction in order to be able to adjust to any diameter of steel
rod (2). In this way it is obtained that one part only can enclose the universe of
all the diameters of rods used in the civil construction. As we can see in the attached
figures (Fig 1-2-3) the already cited support circles (3) that constitute the proper
part confer it the distance to the formwork whichever the position where the part
is placed - horizontal or vertical. However also the security of the workers is now
assured by world-wide norms that protect workers of injuries caused by the cutting
extremities surfaces of the iron rods. For this fact the legislation intends that
all the iron rods must be covered by a protector capsule(1) which can minimize the
contact with the cutting surfaces of the iron rods and hinders to the consequent and
possible injuries. For this purpose the invention that here is presented as a spacer,
can also serve, as a protector capsule when, during its manufacture, and still in
mould, or in any occasion of its use, the capsule is connected like we can see in
Fig 1 and Fig 2. In such a way the rod remains safe for the method above specified
of involvement with a serrated brace(4) but also for the proper drawing of the iron
rod that presents a striated configuration and, therefore, much more resistant to
the attrition.
1. Spacer and protector capsule for iron rods used in concrete structures that, in the
state of the art, are presented now as normal spacers or only as protection capsules
of security for steel rods of the concrete armours; characterized in that for to be, a protector capsule for multiples diameters of iron rods - (2) when a
protector element is connected to it - (1) or, when not possessing connected the protector
capsule (1) it function as simple spacer from formworks, being able to be used in
both the cases (single spacer or protection capsule) as well as can be used in such
a way in structure rods placed in the horizontal or in the vertical position; linked
for two circular supports (3) between them for a strengthened and concave(5) support
where it supports the iron rods(2), possessing a serrated brace (4) involving the
perimeter of the biggest diameter of the steel rods used in civil construction.
2. Spacer and protector capsule for iron rods used in concrete structures, that in accordance
with the claim n° 1, is characterized by having a serrated brace (4) that, involve and moor all the variety of iron rods used
in the civil construction.
3. Spacer and protector capsule for iron rods used in concrete structures, that in accordance
with the claim n° 1, is characterized to be able to be drawn and to be executed in only one polyvalent piece part and used
as a spacer or a protector capsule.
4. Spacer and protector capsule for iron rods used in concrete structures, that in accordance
with the claim n° 1, is characterized for being made in plastic, recycled or not, or any another appropriate material.