Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Patent
1992-02-11
1993-07-06
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
81448, 81302, 81485, 814265, 269 481, 269 6, B25B 2300
Patent
active
052244016
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to a vicing tool for internally gripping hollow bodies, in particular, those of tubular nature.
2. Background Art
In many cases, in the mechanical and above all plumber fields, blocking, releasing, screwing, unscrewing, inserting and extracting hollow bodies from a support in which they are engaged can be problematic, because they do not offer a sufficient gripping surface for being grasped from the outside with a suitable tool (pliers, wrench and similar). This is the case, for example, of pipe connectors which are immured or built into walls. For instance, in the case of a wall set for a wash basin, an inconvenience which very frequently occurs is that of finding, during its replacement, a loss of water caused by the displacement of the pipe connector between the internally immured tubing and the set itself which resultingly looses its capacity for retention. In circumstances such as this, currently, to render possible the disassembly and reassembly while maintaining the pipe connector's capacity for retention, it is necessary to demolish decorative tiles and masonry surrounding the pipe connector in question for the purpose of making space in which to manoeuvre suitable tools.
It is one object of the present invention to provide a vicing tool capable of internally gripping hollow bodies, in particular those of tubular nature, allowing for their disengagement from respective supports.
Another object of the present invention is to provide a vicing tool of the above mentioned type which can be utilized for a sufficiently ample range of internal diameters.
A particular object of this invention is to provide a vicing tool of the above mentioned type which is easily transportable as well as simple and convenient to use.
DISCLOSURE OF THE INVENTION
The above stated objects are accomplished with a vicing tool for internally gripping hollow bodies, particularly those of tubular nature, which is characterized in that it comprises a body made in two halves having two mating faces and angularly displaceable with respect to one another about a rotational axis coincident with a common edge of said faces, and means for imparting to said two halves of said body said angular displacement, from at least one side of said body extending a nose formed by two elongated members of substantially semicylindrical lateral surfaces, extending from said two halves of said body and connecting in a common plane said faces, said nose being composed of concentric longitudinal portions of increasing diameter starting from its free end, said rotational axis being parallel and eccentric with respect to the longitudinal axis of said nose.
Preferably the tool is equipped with handles which allow for the necessary angular displacement and advantageously said handles are connected to said body such that they can be arranged either in a line with the rotational axis or orthogonal to it in order to facilitate its engagement and transport.
In order to render the gripping more effective the external surface of said elongated members is advantageously axially or circumferentially grooved.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics and advantages of the vicing tool according to the present invention will be made clearer in the following description of one of its possible embodiments given as an example but not limitative with reference to the attached drawings in which:
FIG. 1 is a side view of the vicing tool according to this invention;
FIG. 2 is an internal view of one of the two halves of which the tool is composed;
FIG. 3 is a partially cut away frontal view of the tool according to the invention.
BEST MODE FOR CARRYING OUT THE INVENTION
With reference to the above mentioned drawings, 1 generically indicates a substantially cylindrical body formed by two halves la and lb coupled along two of their faces 2a and 2b and held together with an annular element 3 inside which the two halves 1a and 1b are engaged. The two halves 1a and 1b are angularly mobile with respec
REFERENCES:
patent: 1388744 (1921-08-01), Morrissey
patent: 1880172 (1932-09-01), Bergman et al.
patent: 2418626 (1947-04-01), Damrell
Cesari Antonio
Desantis Gaetano
Meislin D. S.
Papi Michela
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