Supports: cabinet structure – Expansible
Patent
1996-01-11
2000-01-25
Cuomo, Peter M.
Supports: cabinet structure
Expansible
3122231, 248357, A47B 4500
Patent
active
060171049
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention regards a cabinet structure to be employed for housing electric and/or electronic equipments, for example, phone exchanges, multiplex equipments for transmitting either phone or data signals, or the like.
Generally, these cabinet structures are comprised of a front cabinet, housing power supplies and signal generating machines and a room behind the cabinet for housing, fastened between a top beam and a bottom beam, a plurality of vertical frames, bearing the equipments, being the room defined between the front cabinet, a rear column, a top structure for bearing connecting cables and possible closing walls and doors for the entrance thereinto.
A problem faced in providing these kinds of cabinet structures to manufacturers of electric and electronic equipments is the variability of some size which at present compels the supplier to hold a large inventory of components to satisfy the requirements of the customers, substantially consisting said components of front cabinets which can range, for example, from 2,600 to 2,200 mm, according to the installation of either traditional or compact equipments, and can be of either standard simple width (300 mm) or double width (600 mm), according to the fact that the cabinet structure is to be installed against a wall or in a middle of a room, being so expected either simple or double columns, respectively, of equipments to be installed in the space behind the front cabinet.
SUMMARY OF THE INVENTION
It is an object of the present invention to reduce the problem of the number of components to be held in inventory, by making some of these components variable in size, so that they can be indifferently installed in every kind of cabinet structure, as required by the customers.
In the prior art EP-A-0 420 491 discloses and claims an equipment rack whose frame member vertical arms include means having the double purpose to define channels suitable to receive cable restraint devices and to serve as keyways to permit a telescopic sliding of upper arm portions with respect to lower arm portions in order to have a rack of variable height serving as a frame for a large variety of cabinets having a large range of heights. This approach, even if it could have some interest because it could provide just one adjustable frame for every kind of an available cabinet, is not of specific utility for the present invention because the standard heights of the cabinets to be used are just two (2,200 and 2,600 mm) and there is no specifical interest for intermediate heights. Further, the cabinets used in the present invention are usually frameless and selfsustaining and do not require such a kind of rack.
The above mentioned problem is solved by using a rear column whose height can be regulated at the installation time between the maximum one expected for the traditional equipments and the minimum one expected for compact equipments and whose bottom and top ends can be of simple width for cabinets of simple standard width and of double width for cabinets of double standard width.
The column solving the above mentioned problem is comprised of a first fixed shaft of a height substantially equal to the minimum eight of the cabinets for compact equipments, comprising telescoped into the same a portion of slidable shaft and fastenable to the fixed shaft at different heights to equal the height of the front cabinet of the structure, provided with a simple foot, whose extension forms with the shaft a width similar to the width of the cabinet of simple standard width, to which the foot can be added, fastened to it, a member protruding in opposite direction with respect to the foot to form, in assembly, a foot of the width similar to the width of the cabinet of a double standard width and with a simple head whose extension forms with the shaft a width similar to the width of the cabinet of simple standard width and, with the addition of a member thereto fastened, gains an extension corresponding to the double standard width.
For a better operation of
REFERENCES:
patent: 2500037 (1950-03-01), Katz
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patent: 3418814 (1968-12-01), Groetschel
patent: 4541675 (1985-09-01), Everett
patent: 4964020 (1990-10-01), Savage et al.
patent: 5593046 (1997-01-01), Katsuura et al.
patent: 5626406 (1997-05-01), Schmid
Allred David E.
CMS Costruzioni Meccaniche Sestesi SRL
Cuomo Peter M.
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