[0001] The present patent application relates to a cooktop for modular kitchens provided
with an opening for a vertical pull-out extractor hood.
[0002] The peculiarities and advantages of the present invention will appear evident from
a brief description of the prior art.
[0003] As it is known, a modular kitchen is formed of cabinets that rest on the floor (the
so-called base units) and cabinets that are hung to the walls (the so-called walls
units) above the corresponding base units.
[0004] Within such a configuration, one of said base units supports a cooktop, generally
made of sheet metal, in which the stoves are inserted (the so-called burners).
[0005] Every cooktop is associated with an extractor hood in order to extract and filter
the fumes and odors generated by the saucepans disposed on it.
[0006] According to the most typical solution, the extractor hood is mounted in horizontal
position above the cooktop, in correspondence of the bottom of the wall unit mounted
above the cabinet (or base unit) that supports the cooktop.
[0007] Recently, a new type of extractor hoods (technically defined as "downdraft hoods")
has become popular, being characterized in that the hood operates in vertical position
in the rear part of the cooktop.
[0008] As a matter of fact, the extracting power of a downdraft hood is capable of extracting
the fumes and odors generated by the cooktop.
[0009] More precisely, such a hood is composed of a casing adapted to be mounted in vertical
position inside the cabinet, in such a condition that its opening is disposed in the
rear part of the cooktop and is basically flush with it.
[0010] Such a casing houses the filtering-extracting unit that is suitably adapted to make
alternate vertical travels in order to be alternatively brought from a non-operating
position, in which it is completely contained inside the casing, to a operating position,
in which it is out of the casing basically for its entire height and in useful position
to extract the fumes and odors generated by the cooktop.
[0011] This description continues illustrating the installation mode of a downdraft hood
in the cabinet, in the rear part of said cooktop.
[0012] Two different openings must be made on the top of said cabinet, as expressly shown
in the attached technical drawing identified as "Prior Art".
[0013] With reference to said technical drawing, Fig. 1 is an exploded axonometric view
that shows the first large rectangular opening (1) adapted to house the cooktop (P).
[0014] For said reason, the opening (1) is made immediately behind the front longitudinal
border of the top (T) and extends for most of its depth.
[0015] The second opening (2) is made behind said first opening (1), near the rear longitudinal
border of the top (T), and is adapted to vertically house the casing of the downdraft
hood (C).
[0016] Said second opening (2) is likewise provided with a rectangular profile and its length
is normally higher than the length of the first opening, whereas its width is considerably
lower.
[0017] As shown in Fig. 1, the two openings (1, 2) are separated by a thin longitudinal
section (3) of said top (T) that acts as support surface for the adjacent border of
the perimeter flange normally provided in the opening of the casing of the hood (C).
[0018] Fig 2 is a top view of the top (T) when the cooktop (P) and the hood (C) are inserted
into the openings (1, 2) of the top (T).
[0019] As shown in the aforementioned figure, the thin longitudinal section (3) of the top
(T) remains visible between the cooktop (P) and the hood (C).
[0020] Considering that the cooktop (P) and the horizontal upper finishing panel (Pa) of
the hood (C) have a considerable thickness and protrude upwards with respect to the
top (T), it is evident that the thin intermediate section (3) of the top (T) represents
the bottom of a narrow channel generated between the cooktop (P) and the hood (C).
[0021] Although the use of a similar downdraft hood has given satisfactory functional and
aesthetic results, it must be noted that such a technology is impaired by the following
drawbacks.
[0022] The main drawback is related to the traditional presence of said two separate openings
(1, 2) made on the top of the cabinet that receives both the cooktop (P) and the downdraft
hood (C).
[0023] It is obvious that the need to make two separate openings (1, 2) increases the difficulty
and extends the time needed to repeat such a cutting operation of the top (T) twice.
[0024] Moreover, the presence of the two separate openings (1, 2) generates the formation
of said thin longitudinal section (3) of the top (T).
[0025] Practically speaking, the presence of said thin longitudinal section (3) of the top
(T) comprised in lower position between the cooktop (P) and the extractor hood (C),
is particularly critical.
[0026] Indeed, it inevitably collects dust, humidity, fat and food residues, and its depressed
position makes cleaning operations difficult.
[0027] Moreover, the continuous exposure of the longitudinal intermediate section (3) of
the top (T) to the steam produced by the saucepans positioned on the cooktop (P) generates
humidity infiltration, causing damage or structural deformation.
[0028] A careful critical evaluation of the prior art has resulted in the present invention,
which eliminates the aforementioned drawbacks related to the use of a downdraft hood
in the rear part of a traditional cooktop.
[0029] The inventive idea consists in a new cooktop that, in addition to supporting the
burners, is provided with a longitudinal opening behind them.
[0030] The function of such an opening is to allow the downdraft hood to make alternate
vertical travels with respect to its casing, which is usually disposed under the top
of the cabinet.
[0031] In order to implement such an inventive solution, the depth of the cooktop of the
invention is basically equal to the depth of the top of the cabinet, with significant
consequences also for the cabinet configuration.
[0032] In particular, the two separate openings obtained on the top (one for the cooktop,
and one for the casing of the hood) that are typical of the prior art are no longer
necessary, it being sufficient to make a single large opening to house the cooktop
of the invention.
[0033] The elimination of the two separate openings has eliminated the critical presence
of said thin longitudinal section of the top that, according to the prior art, is
disposed between them and originates said depressed channel that is responsible for
the aforementioned drawbacks.
[0034] Indeed, in case of a kitchen cabinet equipped with the new cooktop of the invention,
the top is coated with a metal surface that is perfectly continuous, without undercut,
also in the space comprised between the burners and the opening used for the downdraft
hood.
[0035] Such a construction makes cleaning of said continuous metal surface easier and faster.
[0036] In view of the above, the cooktop of the invention is also useful when installed
in a cabinet that is already provided on the top with said two separate openings that
are typical of the prior art.
[0037] In such a case, because of its high depth, the cooktop of the invention is able to
"cover" the thin longitudinal intermediate section that separates the two openings
on the top.
[0038] Also in this case the aforementioned drawbacks of the prior art, which are related
to the presence of said thin section of top comprised between the traditional cooktop
and the casing of the hood, would be eliminated.
[0039] Moreover, it must be said that the use of the cooktop of the invention also allows
to eliminate the perimeter flange provided in the opening of the casing of the downdraft
hood according to the prior art.
[0040] As a matter of fact, said perimeter flange used to be positioned above the top of
the cabinet to conceal the perimeter borders of the opening adapted to house the casing.
[0041] According to the present invention, the opening of the casing of the downdraft hood
is finished on the perimeter directly by the borders of the opening obtained on the
cooktop of the invention.
[0042] For explanatory reasons the description of the invention continues with reference
to the attached drawing, which only has an illustrative, not limiting value, wherein:
- Fig. 3 is an axonometric view of the new cooktop of the invention, before being inserted
in the cabinet;
- Fig. 4 is an axonometric view of the cabinet equipped with the cooktop of the invention
and the downdraft hood pulled out from its casing;
- Fig. 5 is a top view of the cabinet of Fig. 4.
[0043] Referring to the three aforementioned figures, the cooktop of the invention (10),
which is usually made with sheet metal and adapted to be mounted on the top (T) of
a cabinet, is characterized in that it is provided with a longitudinal opening (11)
with rectangular elongated narrow shape disposed in the rear part of the area used
to support the burners (F).
[0044] The function of the opening (11) is to allow for the alternate vertical travels of
a traditional downdraft hood (CD), the casing (C) of which is usually fitted to the
cabinet under the top (T).
[0045] In order to install the new cooktop of the invention (10), the top (T) is preferably
provided with a single large opening (A).
[0046] The depth of the cooktop (10) of the invention is basically the same as the top (T)
and, for this reason, also the opening (A) practically extends from the front longitudinal
border to the rear longitudinal border of the top (T).