The invention
- The problem
to be solved:
To join and interconnect different cross-section
and size rugged wall tubes (box sections) in a
way that the joining piece be located inside the
tube (in the dead-zone) between the tube ends to
be joined. It is to be a simply and quickly
handled, easily released one, suitable to mount
branching and nodal elements, too.
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- Definition:
The universal tube joining piece is
located between and inserted into the tube ends
to be connected to each other, simultaneously, it
serves to align axially the tubes.
Turning axially the joining piece inserted into
both of the tube ends it becomes wedged inside
the both tube ends holding and fixing firmly the
tubes in the required position. When turning the
joining piece in the opposite direction the tube
connection becomes released.
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- Presentation:
The tube joining pieces are designed as
an independent structural unit, according to the
parameters (diameter, wall thickness, strength
requirements, etc.) of the tubes to be joined and
used for framework assembly.
There is a special purpose tool that is fitted to
the prepared surface of the structural element
that aligns axially the tubes to be joined and,
this tool is used to fix and release the joining
of the tube ends. By turning the joining piece
with the special tool it becomes wedged inside
the tube ends to be joined fixing them firmly and
exactly in their position without any special
inner shape machined inside the tube ends for
this purpose. No axial turn of the tubes required
when joining them. The joining piece is also
suitable to join, with a detachable joint, the
different diameter, wall thickness, cross section
tubes or box sections, in case if it is
accordingly designed. The joining can be sealed
and this way the joined tubes can also be used
for bulk material conveying under limited
conditions. Due to the joining design it has a
significant strength. The varied shape designs of
the joining piece make possible to realise
numerous construction task solutions.
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- Application:
The joining piece can be used in the construction
of: modular frameworks, provisional and permanent
scaffolds, tent and building frames, variable
shelf systems, indoor and outdoor tubular frame
furniture, furnishings, etc..
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- Advantages:
It is a universal tube joining element that can
widely be used and, its handling is easy and
simple. The joining piece makes exact
orientation, firm joint and quick assembly
possible. It does not require any previous
machining work to prepare the tube ends to be
joined.
By its use a significant amount of costs and
labour can be spared in the course of building
frameworks.
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- Stage of
development:
The development work is in experimental phase.
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- Documentation
available: Yes
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| The inventor(s)
- Self
introduction:
The inventor is 45 years old, graduated in
mechanical engineering and lives in Pécs city.
He worked in the technical departments of various
companies (Sopiana Machine Factory in Pécs,
EIVRT-TUNGSRAM in Budapest, BAT Tobacco Factory
of Pécs) as technical designer. In 1994 he
started his own company with the aim to implement
his inventions and innovations.
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The protection
- Form: Patent
application (registration no.: P98 01039, P98
01040, PCT/HU99/00037)
- Priority: 1998.
- Countries
where it is force:
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| Business
intention: |
Contact
- Name: Nándor
VÁRNAI
- E-mail: genius@inventor.hu
- Fax: +3672
326 765
- Address: H-7622,
Pécs, Dohány u. 7. Hungary
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