Boots – shoes – and leggings
Patent
1996-07-12
1998-03-24
Ngo, Chuong Dinh
Boots, shoes, and leggings
361679, G06F 118
Patent
active
057320004
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a casing for electronic equipment, such as personal computers and/or their peripherals, comprising a base adapted to support mechanical and electronic components and a cover adapted to be removably fixed to the base in order to enclose the said components.
In the known casings of this type the cover is fixed to the base by means of rows of screws. These casings have the disadvantage that, in order to access the components of the equipment, tools are required to unscrew and tighten the various screws holding the cover fixed to the base.
In addition, European Patent Application EP-A-0 463 776 describes an enclosure which facilitates access to the interior of a computer by providing hooking means arranged between the cover and the base and adapted to be operated manually. The hooking means include a plurality of hooks on one of the base and the cover, and a plurality of pockets on the other. The hooks and the pockets are disposed along two sides of the base and cover and are connected between them by sliding the cover on the base. The hooks are wedge-shaped for penetrating into the pockets. This enclosure has the disadvantage that the force required by the operator to insert the wedge-shaped hooks into the pockets is rather high, and the manual operations for connecting or disconnecting the cover and the base are uncomfortable, the operator being obliged to hold the cover firmly during such operations.
The object of this invention is to produce a casing which is simple, inexpensive, reliable and easy to assemble and which allows for easy access to the internal components of the equipment, without the need for tools, and further which is comfortable to use and does not require excessive effort from the operator.
SUMMARY OF THE INVENTION
The invention is defined in the independent claims below, to which reference should now be made. Preferred features of the invention are set forth in the appendant claims.
A preferred casing embodying the invention, which is described in more detail below with reference to the drawings, includes a base for supporting the mechanical and electronic components of a personal computer, and a cover removably fixed to the base in order to enclose the said components. A locking mechanism or knob unit can be selectively actuated in order to lock the cover to the base. There are knob units on either side of the casing. In the preferred embodiment the locking mechanism causes hooks, fins or notches on the cover to engage in eyelets or slots on the base as the cover is slid over the base by actuation of the knob units.
PREFERRED DESCRIPTION OF THE DRAWINGS
The invention will be further described in more detail, by way of non-limiting example, with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of the casing for a piece of electronic equipment embodying to the invention;
FIG. 2 is an exploded perspective view of the casing of FIG. 1;
FIG. 3 is a section of part of the casing of FIG. 1;
FIG. 4 is a section of another part of the casing of FIG. 1;
FIG. 5 is a view of a detail from FIG. 4;
FIG. 6 is another view of the detail of FIG. 5;
FIG. 7 is a highly enlarged view of a detail from FIG. 1;
FIG. 8 is a view of a detail from FIG. 7;
FIG. 9 is a lateral section of the view of FIG. 7;
FIG. 10 is a view of a detail from FIG. 7;
FIG. 11 is another side view of the detail of FIG. 10;
FIG. 12 is a diagrammatic side view of the casing of FIG. 1 in a working position;
FIGS. 13, 14 and 15 are perspective views of a detail from FIG. 12 in various working positions; and
FIGS. 16, 17, 18 and 19 are perspective views of details from FIGS. 3 and 4 in various working positions.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, the reference numeral 11 designates a piece of electronic equipment, e.g. a personal computer, referred to hereinafter by the abbreviation PC, the casing of which comprises a cover 12 having a front plate 13, a top 15, and parallel side walls 14 and 16, together with a
REFERENCES:
patent: 4718858 (1988-01-01), Godfrey et al.
patent: 4909579 (1990-03-01), Liu
patent: 5121296 (1992-06-01), Hsu
patent: 5192143 (1993-03-01), Lajara e tal.
patent: 5660297 (1997-08-01), Liu
Chiesi Pier Giorgio
Villa Egidio
Ngo Chuong Dinh
Olivetti & C. S.p.A.
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