IMPROVED MODULAR BARBECUE

Abstract: The improved modular barbecue consists of a rectangular base part which is placed horizontally, has an area for receiving the embers and on which side partition walls are placed, said walls having inner grooves for fixing the lifting and lowering mechanisms of a grill that can be moved from the outside by means of a crank of the like, said part having a groove or transversal opening in its lower section through which the fuel transformed into embers can be evacuated and being supported on a grid having an actuation handle, said part having an access door fitted with a handle enabling access to the chamber comprising rectangular openings through which the smoke from said cooking and combustion chamber has access to the outside.

Description: The present invention refers to an improved modular barbecue, whose purpose consists in being configured like a barbecue whose pieces are made of refractory concrete being possible, should it be required, to substitute each one of the constituent pieces, presenting in the rear central area of the grill body a chamber for transformation of the fuel used into embers that later on will be used to carry out the roast or light roast operation of foods that will be placed on a grill able to be moved vertically upwards or downwards, said grill being optionally replaceable by a griddle plate also movable vertically upwards or downwards. The combustion chamber, where the fuel is placed, presents a completely independent access gate, having a grilled piece for holding the fuel. It is also an object of the invention to implement two independent outlets, one for exiting of the smoke from the combustion chamber, and a second one for withdrawal of the smoke from the cooking chamber, also presenting independent chimneys, being the interior of each one provided with complementary pieces to protect the chimney external pieces, thus avoiding the breaking of said chimneys. The barbecue, due to the incorporation of inside outlets for smoke that is extracted by venturi effect, is allowed to be installed outside as well as inside of a house. FIELD OF THE INVENTION This invention has its application in the industry dedicated to manufacture elements for barbecues and similar. BACKGROUND OF THE INVENTION The applicant has knowledge of the existence at the present time of a great number and variety of barbecues, all of them manufactured in different materials, mainly concrete and metallic materials, being portable those barbecues manufactured in metallic material, presenting a hollow prismatic structure for the incorporation of fuel, as charcoal, firewood, chips, etc., that is burnt until their transformation in embers, having upper pieces for grills or griddle plates retention, cooperating in some cases with a chimney, presenting an ash drawer and lower trays for the firewood or fuel storage . The barbecues manufactured in rocky materials, bricks or concrete are undisplaceable, having a cowl-type upper surface covering the roast and combustion chamber, occasionally having grills movable from outside by means of an actuation handle fixed to a chain for movement transmission. In all cases, during the stage of transformation of fuel into embers and in the light roast stage, it has been verified that barbecues emit to outside environment a great quantity of smoke through the wide front opening, which during the transformation stage is accompanied with sparks, ashes and some small quantity of gas, thus making non-advisable to place the barbecue in areas where environment damages can take place because of said anomalies. The Utility Model Application by the same inventor ES 1 039 867 U discloses a barbecue comprising a combustion chamber and a roasting chamber. The "firewood burner" at the rear part of a base piece, is not defined by its limiting parts and only is claimed its function "to transform firewood in embers". Both cambers sharing a chimney for the discharge of smokes. The Patent WO-A-9846944 discloses a barbecue with a combustion chamber and a roasting chamber but as the previous one, they share a unique chimney for smokes coming from both chambers. Although the combustion and roasting chambers are separated, there is not separation between the outlet ducts for gases and smokes from the two chambers, thus allowing that flames and smokes produced in the combustion chamber move towards the front of the roasting chamber, with the consequent risks of damage to the barbecue's operator and of ashes falling on the food being cooked in the roasting chamber. This disadvantages are overcome by the present invention as claimed in appended claims. DESCRIPTION OF THE INVENTION The improved modular barbecue of the invention has an evident novelty in its specific field of application, because it presents advantages non incorporated in the prior art. Particularly, the improved modular barbecue of the invention, is comprised of a plurality of manufactured pieces of concrete, mounted with metal pieces as the grills, support and rotation shafts as well as an optional griddle plate, having four support legs with upper elements dedtcated to receive and support a horizontal piece constituting the base of the roast chamber in whose smaller sides two pieces are located whose external area imitates bricks, presenting internally guides suitable for the support elements sliding, for fixation and movement of a grill, optionally replaceable by a griddle plate, having a chamber in the internal front area, whose lower area presents a grill slightly separated from the bottom end having said piece, that altogether with the rear one constitute the combustion chamber, an opening in its lower part, being accessed the chamber through a door provided with a suitable hinge and a handle located at the right side. The barbecue is complemented with a handle for moving the fuel supporting grill that, by means of some slight movements, makes the embers to fall down to the lower area, being said embers then transferred by means of a rake to the base upper area where it is placed just under the product to be roasted located on the grill or griddle plate. Smokes and gases from the combustion ascend by the inside of the combustion chamber where the combustion is performed and are driven to the outside through a chimney located in the rear upper part, said chimney being internally coated by means of a protecting piece that avoids breakage of the external element due to the hot smoke when the chimney is very cold or wet. Smokes produced by the roasting operation reach the outside through the front upper chimney, and the ends of both upper canalizations converge into a rectangular piece, internally splitted by a cross partition, presenting an upper cowl that is separated from the end of the complementary upper chimney by support pieces. The grill constituting the food support area, optionally replaceable by a metallic griddle plate, raises and falls by means of a mechanism installed on the internal faces of the side pieces, presenting a handle or crank in the external area for driving said mechanism, said handle or crank being provided with a brake mechanism. The combustion chamber has an access gate provided with a closing element. DESCRIPTION OF DRAWINGS To complement the present description and in order to help for better understanding of the characteristics of the invention, four drawings are attached to the present descriptive document, as integral part thereof, in which, with illustrative and not limitative character, the following has been represented: Fig. 1 shows an exploded view of the different elements or pieces constituting the invention, relating to an improved modular barbecue, except for the constituting pieces of the chimneys or pieces for smoke evacuation. Fig. 2 shows a perspective view of an assembled barbecue, except for the chimneys or pieces for smoke evacuation that appear in exploded view in the upper part. Fig. 3 is a perspective view of a completely assembled barbecue, presenting additional details corresponding to the grills and griddle plates movements, and the grills for supporting the fuel. Fig. 4 shows a side elevational view of a vertical cross section of the barbecue. PREFERRED EMBODIMENT OF THE INVENTION In view of above figures, it can be observed how the improved modular barbecue (1) is made of a plurality of concrete pieces, except some metallic pieces constituting the grills and griddle plates. The improved modular barbecue (1) presents a central piece (2) of rectangular plant constituting the central area of the barbecue, on which, and particularly on an area (5) provided with transversal grooves, the fuel converted into embers will be deposited, being the piece (2) supported in the horizontal sense by means of four legs (3) with their upper supports (4), being assembled on the central piece (2) two pieces (6) and (6') on its lateral sides, being said pieces (6) and (6') provided at their internal faces with grooves (7) for fixing a raising and falling mechanism of a grill (11), on which the elements will be placed, presenting in their lateral fixation means (30), the grill (11) can be optionally substituted by a steel griddle plate. In the rear part of the piece (2) a back piece (10) is vertically assembled and parallel to said piece but in the internal area there is a piece (9) similar to the piece (10), but provided in the inferior part with an opening (9'), through which the embers will come out towards the surface (5) of the piece (2), said embers having previously been introduced through a door (8) existing in the lateral side (6) that gives access to a combustion chamber formed by pieces (9) and (10), inside which there is a grill (13) provided with a crank (14) ; by slightly actuating the on said crank (14), the embers are moved downwards onto the rear surface of the piece (2), reaching said piece through an opening (9 ') existing at the lower area of the front piece (9). The gate (8) has a handle and a lock (32), and the raising and lowering mechanism of the grill has a crank (31) that, cooperating with a transversal support piece (12), allows the grill raising or lowering; the grill (11) can be replaced by a steel griddle plate (nor represented neither referenced). A piece (15), parallel to piece (2) is placed onto the pieces (6), (6'), (9) and (10), being said piece (15) provided with two rectangular openings (17, 16) with dimensions different in width but not in longitude, through which the smoke from the combustion chamber (40) comes out in upward sense, also the smoke produced by the treatment the foods placed on the grill (11) ascends vertically through the opening (16) to reach the outside through the trunco-pyramidal pieces (18) and (19) respectively located over the openings (16) and (17); it should be noted that pieces (18) and (19) are provided with a respective internal coating piece (20) and (21) that protects the structure of pieces (18) and (19) through their upper openings with a piece (22) provided in its central area with a small transversal partition (23) that acts as driver of smoke toward the outside, having a closing piece (25) supported on the piece (22) by supports (24). In summary, the invention, formed completely by modular pieces, presents as a fundamental feature the existence in the rear part of a transformation or combustion chamber formed by two partitions (9) and (10) transversally located on the piece (2), that in cooperation with the lateral partitions (6) and (6') configure the transformation chamber, to which access is given through a gate (8) existent in the piece (6), passing the material used as fuel, once converted in embers, to the surface of the piece (2) through the opening (9') when a slightly higher support grill (13), existing inside the combustion chamber (40), is moved by means of the actuation on a handle (14). The invention also presents as a fundamental feature an internal coating of the pieces (18) and (19) that act as chimneys for the smoke evacuation from the roast and light roast chamber and from the combustion or transformation chamber, leaving said smoke through the pieces (20) and (21) until converging in a canalization piece (22) provided with a central partition (23) and having in its upper part a protecting piece or cowl (25) supported on conventional supports (24). It is not considered necessary to make this description more extensive so that any expert in the art may understand the scope of the invention and the advantages that are derived thereof. Materials, forms, sizes and arrangement of the elements will be susceptible of variation, provided that it does not mean any alteration of the essence of the invention.

Claims: A modular barbecue comprising: four supporting legs (3); a rectangular base piece (2) supported on the four supporting legs (3); four vertical walls of the same height: a left wall (6') and a right wall (6) placed on the respective sides of said rectangular base piece (2), a back wall (10) placed at the rear portion of said rectangular base piece (2), and an intermediate wall (9) placed generally parallel to said back wall (10) but at an inner position, said intermediate wall (9) having an opening (9') at its bottom; an upper piece (15), parallel to said rectangular base piece (2), placed on top of said four vertical walls (6', 6, 10, 9), placed generally parallel to the rectangular base piece (2), said upper piece having two openings (16, 17); two hollow truncated pyramidal pieces(18,19) placed on top of the upper piece (15); a hollow parallelepipedic piece (22) having a transversal partition, the hollow parallelepipedic piece (22) being placed on top of said hollow truncated pyramidal pieces (18, 19), said hollow truncated pyramidal pieces (18, 19) converging at their upper portions in said hollow parallelepipedic piece (22) having a transversal partition ; said rectangular base piece (2), said upper piece (15) and said four vertical walls (6,6',9,10) defining two chambers: a front roasting chamber and a rear combustion chamber, the opening (9') of the intermediate wall (9) allowing access from the front roasting chamber to the rear combustion chamber in such a way that embers inside the rear combustion chamber may be transferred from the rear combustion chamber to the front roasting, chamber through the opening (9') of the intermediate wall (9) characterized in that the two openings (16, 17) of the upper piece (15), the two hollow truncated pyramidal pieces(18,19) and the hollow parallelepipedic piece (22) having a transversal partition, define first and second independent conducts for the smoke produced in the rear combustion chamber and front roasting chamber to exit. A modular barbecue according to Claim 1, characterized in that a rear rectangular opening (17) of the upper piece (15), a first hollow truncated pyramidal piece (19) placed on a rear portion of the upper piece (15) and covering said rear rectangular opening (17), and a rear portion of the hollow parallelepipedic piece (22) having a transversal partition, define a first independent conduct for conveying smoke produced in the rear combustion chamber, and in that a front rectangular opening (16) of the upper piece (15), a second hollow truncated pyramidal piece (18) placed on a front portion of the upper piece (15) and covering said front rectangular opening (16), and a front portion of the hollow parallelepipedic piece (22) having a transversal partition, define a second independent conduct for conveying smoke produced in the front roasting chamber, being said first and second hollow truncated pyramidal pieces (18, 19) provided with internal coating elements to avoid breakage.

Inventors: PRADO ALVAREZ JOSE LUIS, PRADO ALVAREZ, JOSE LUIS, Prado Alvarez, José Luis
Applicants: PRADO ALVAREZ JOSE LUIS, PRADO ALVAREZ, JOSE LUIS
Application year: 2000
Main classification: A47J37
IPC codes: F24B1, A47J37