Folding Grill

Abstract

The subject of the invention is a folding grill, which is characterized in that the front and rear walls of the bowl of the fireplace of this grill are swingingly connected to the upper ends of the front and rear wall of the left leg and right leg, that are essentially C-shaped, while the rear wall consisting of two connected to each other by hinges lower and upper parts and the side walls of the fireplace are connected by hinges to the side walls and the rear wall of the bowl, whereas the side walls are detachably connected to the rear wall by means of protrusions inseparably connected to the upper part of the wall, which are located in the vertical slots of the side walls, and in addition the upper part of the rear wall is connected by hinges to the cover.

Claims

1. A folding grill equipped with two legs connected to a fireplace consisting of a bowl sheltered by three walls, on which a cover rests, and a grate, characterised in that the front and rear walls of the bowl (23) of the fireplace (1) are swingingly connected to the upper ends of the front and rear walls of the left leg (3) and the right leg (3′), that are essentially C-shaped, while the rear wall (37) consisting of two connected to each other by hinges lower (36) and upper (50) parts and the side walls (31) of the fireplace (1) are connected by hinges to the side walls and the rear wall of the bowl (23), whereas the side walls (31) are detachably connected to the rear wall (37) by means of protrusions (61) inseparably connected to the upper part (50) of the wall (37), which are located in the vertical slots (48) of the side walls (31), and in addition the upper part (50) of the rear wall (37) is connected by hinges to the cover (2).

2. The grill according to claim 1, characterized in that the side walls of the bowl (23) are connected to the side walls (31) of the fireplace (1) by means of cylindrical pins (30) placed in the lugs (29) of the upper corners of the bowl (23) and in the sleeves (44) welded to the lower edges of the side walls (31) of the fireplace (1), while the rear wall of the bowl (23) is connected to the lower part (36) of the rear wall (37) by means of a cylindrical pin (35) located in the sleeves (34) of the rear wall of the bowl (23) and in the sleeves (53) of the lower part (36), and both parts (36, 50) of the rear wall (37) are connected to each other by means of a cylindrical pin (56) placed in the sleeves (54) of the lower part (36) and the sleeves (55) of the upper part (50) of the rear wall (37), while the upper part (50) of the rear wall (37) of the fireplace (1) is connected to the cover (2) by means of a cylindrical pin (65) placed in the sleeves (63) of the upper part (50) and the sleeves (64) of the cover (2).

3. The grill according to claim 1, characterized in that the front and rear wall of the bowl (23) of the fireplace (1) are inseparably connected to the arched connectors (22) with blind cavities (24) made in them for the profiled elements (25) inseparably connected to the inner surface of the front and rear wall of the left leg (3) and the right leg (3′).

4. The grill according to claim 1, characterized in that the upper part (50) of the rear wall (37) in its vertical plane of symmetry has a profiled element (57) with a hole (58) coaxially located with respect to a hole (59) of the lower part (36) of the rear wall (37).

5. The grill according to claim 4, characterized in that a stabilizing screw (60) with a flat handle (60′) is located in the holes (58, 59).

6. The grill according to any of claim 1, characterized in that diagonally situated arms (14, 14′) of the flat rectangular left support (15) and the right support (15′) are attached by means of pins to the inner surface of the rear and front wall of the left leg (3) and the right leg (3′), whereas the left support (15) has a rectangular offset (16) with a circular through hole (17) made at its long edge and a rectangular hole (17′) located behind it, and the right support (15′) ends with a rectangular cavity (19), the arms (20) of which are bent upwards and behind which a circular through hole (17″) is made.

7. The grill according to claim 6, characterized in that in the circular through holes (17 and 17″), coaxially located to each other, there is a locking screw (21) ended with a handle at the top.

8. The grill according to claim 6, characterized in that behind the rectangular through hole (17′) of the left support (15) a circular through hole (18) is made, and behind the circular through hole (17″) of the right support (15′) another circular through hole (18′) is made.

9. The grill according to claim 1, characterized in that the side walls (31) of the fireplace (1) and the side walls of the bowl (23) are connected to the frames (32) of the shelves (33) by means of a cylindrical pin (30) placed in the lugs (29) of the upper corners of the bowl (23), in the sleeves (44) of the lower edges of the side walls (31) of the fireplace (1) and in the through holes of the horizontal elements (38) of the frame (32) of the shelf (33).

10. The grill according to claim 9, characterized in that the horizontal elements (38) of the frame (32) of the shelf (33) are placed in a cavity (45) made between two sleeves (44) of the side wall (31) of the fireplace (1).

11. The grill according to claim 9, characterized in that the upper surface of the horizontal elements (38) of the frame (32) of the shelf (33) from the inner side of the fireplace (1) is inseparably connected to the plate (39) adjacent to the inner surface of the side wall (31) of the fireplace (1), and the lower parts (36) of the rear wall (37) have flat offsets (36′) adjacent to the plate (39).

12. The grill according to claim 1, characterized in that the side walls of the left leg (3) and the right leg (3′) in the upper part are made with coaxially situated to each other through holes (6, 6′), above which a magnet (9, 9′) is glued to the inner surface of these walls, whereas wheels (11) are attached to the lower part of the side wall of the right leg (3′), while at the upper corners of the side wall of the left leg (3) two rectangular through recesses (7) are made for the wheels (11), and between these recesses there is a flat slotted rectangular hole (7′) for the locking screw (21) handle, and in addition to the bottom middle part of the inner surface of this side wall a hook (8) of the catch (27) is attached, whereas the catch (27) is attached to the middle outer part of the right side wall of the bowl (23), and to the outer surface of the side wall of the left leg (3) a telescopic handle (4) with a grip (5) is attached.

13. The grill according to claim 1, characterized in that in the front wall of the cover (2), in its central part, a blind recess (68) with through holes (70) for the guides (71) of a handle (72) equipped with a catch (73) is made.

14. The grill according to claim 13, characterized in that the central outer part of the front wall of the bowl (23) is equipped with a protrusion (26) adapted to the shape of the catch (73) of the handle (72) of the cover (2), and additionally the middle parts of both side walls of the bowl (23) have flat vertical offsets (28).

15. The grill according to claim 13, characterized in that the handle (72) is equipped with a LED with a battery and a switch.

16. The grill according to any of claim 1, characterized in that two profiled elements (66) are inseparably attached to the upper inner edge of the rear wall of the cover (2), and hooks (67) are attached to the corners of the inner surface of the upper wall of this cover (2).

17. The grill according to claim 1, characterized in that the front wall of the bowl (23) in its central part has a rectangular blind recess (74) with holes (75) for knobs (76) of the gas distributor (77), which is connected by a gas hose (78) to a valve (79) fixed in the hole (80) of the bottom of the bowl (23), and by further gas hoses (81) to the burners (82) located in the bowl (23), over which the aromatizers (83) are seated.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0022] The subject of the invention in two exemplary embodiments is shown in FIGS. 1-18, in which FIGS. 1-11—show the first embodiment of the folding grill, the fireplace bowl of which is adapted to thermal processing of food by means of solid fuel such as coal or firewood, FIGS. 12-14 show the second embodiment of the folded grill, the fireplace bowl of which is adapted to thermal processing of food by means of a gaseous fuel such as natural gas, and FIGS. 15-18—show the method of folding the grill made according to its first embodiment, whereas

[0023] FIG. 1—shows the first embodiment of this grill in a perspective view from the right side, from the front and from above.

[0024] FIG. 2—the same grill in a perspective view from the left side, from the back and from above.

[0025] FIG. 3—the same grill in a perspective view from the front and from above

[0026] FIG. 4—the same grill in front view

[0027] FIG. 5—the same grill in a horizontal cross section along the line A-A

[0028] FIG. 6—enlarged detail B of both leg supports of this grill in a perspective view from the left side, from the back and from above.

[0029] FIG. 7—enlarged detail C of the hinge connection of the fireplace bowl of this grill with its left shelf and side wall, in a perspective view from the right side, from the front and from above.

[0030] FIG. 8—enlarged detail D of the hinge connection of the fireplace bowl of this grill with its right shelf and side wall, in a perspective view from the left side, from the back and from above.

[0031] FIG. 9—an enlarged vertical cross section along the line E-E showing the hinge connection of the upper and lower part of the rear wall of this grill together with the stabilizing screw.

[0032] FIG. 10—the fireplace cover of this grill in a perspective view from the right side, from the front and from the bottom

[0033] FIG. 11—the same grill in the unfolded state of its components in a perspective view from the left side, from the front and from above

[0034] FIG. 12—shows the second embodiment of this grill in a perspective view from the right side, from the front and from above.

[0035] FIG. 13—the bowl of this grill, the left part of which is not equipped with aromatizers, in a perspective view from the right side, from the back and from above.

[0036] FIG. 14—the same bowl in a perspective view from the left side, from the front and from the bottom

[0037] FIG. 15—the first stage of folding the grill according to the first embodiment into a form resembling a suitcase, which is after attaching the grate to its cover and during folding its rear wall, in a perspective view from the left side, from the front and from above.

[0038] FIG. 16—the second stage of folding this grill after folding its rear wall and right-side wall with a shelf and the left support of the left leg, and during the folding of the left shelf with the left side wall and the right support of the right leg, in a perspective view from the left side, from the front and from above.

[0039] FIG. 17—the third stage of folding this grill after folding its walls, shelves and the right leg, and during folding its left leg and the cover with grate, in a perspective view from the left side, from the front and from above, and

[0040] FIG. 18—the same grill after its folding into a form resembling a transport suitcase, in a perspective view from the right side, from the front and from above.

DETAILED DESCRIPTION OF THE INVENTION

[0041] The invention should not be limited to the embodiments described below, as it may also be embodied in other forms. The embodiments are presented so that the disclosure of the invention is full and complete and fully conveys the scope of the invention to those skilled in the art.

[0042] Summing up, the following embodiments do not exhaust all possible solutions falling within the scope of the invention.

[0043] The folding grill according to the first embodiment, shown in FIGS. 1-11, consists of a rectangular fireplace 1 open from the front, which is covered from above with a sheet metal cuboidal cover 2 connected to it by hinges, whereas the lower part of the fireplace 1 being connected to swinging legs made of sheet metal, the left leg 3 and the right leg 3′, having the shape of the letter “C” in cross-section, the front and rear narrower walls of which are oriented inwardly and are perpendicularly situated to the side walls of the legs 3 and 3′.

[0044] To the outer surface of the side wall of the left leg 3, in its lower middle part, a downwardly oriented telescopic two-armed metal handle 4 is welded, ended with a horizontally situated grip 5, and in the upper part of this wall there is a circular through hole 6, and at its upper corners two rectangular through recesses 7 are made between which a flat slotted rectangular hole 7′ is made. In turn, a metal hook 8 is welded to the lower middle part of the inner surface of this side wall, and a rectangular magnet 9 is glued above the through hole 6 to the upper middle part of this wall.

[0045] The outer surface of the side wall of the right leg 3′ of the grill in its lower part at its corners is made with two rectangular recesses 10 in which wheels 11 are mounted, while the middle upper part of this wall is made with a circular through hole 6′ coaxially situated to the through hole 6 of the side wall of the leg 3, above which a rectangular magnet 9′ is glued to the upper front part of the inner surface of this side wall, and the front and rear walls of the leg 3′ are ended with an arched recess 13.

[0046] To the inner surface of the rear and front walls of both legs 3 and 3′, the obliquely situated arms 14 and 14′ of the flat sheet metal rectangular left support 15 and the right support 15′ are attached by means of pins not shown in the drawing, whereas the left support 15 has a rectangular offset 16 with a circular through hole 17 made on its long edge and a rectangular hole 17′ situated behind it, behind which a round through hole 18 is made with a diameter smaller than the through hole 6 of the side wall of the left leg 3. In turn, the right support 15′ of the right leg 3′ is ended with a rectangular cavity 19, behind which a circular through hole 17″ is made, and behind it there is another circular through hole 18′ with a diameter smaller than the through hole 6′ of the side wall of the right leg 3′, whereas the front ends of the arms 20 of the rectangular cavity 19 are slightly bent upwards so that in the unfolded position of the supports 15 and 15′ the rectangular offset 16 of the left support 15 is situated in the cavity 19 of the right support 15′ and it is partially supported on the right support 15′, and the ends of the arms 20 of this support partially overlap the support 15, and in the holes 17 and 17″ coaxially situated to each other a locking screw 21 is screwed, ended from the top with a flat handle, which additionally stabilizes the supports 15 and 15′ in a horizontal position.

[0047] The upper extreme ends of the rear and front walls of both legs 3 and 3′ are swingingly connected by means of sheet metal arched connectors 22 welded at the side edges of the front and rear walls of the cuboid sheet metal bowl 23 of the fireplace 1 for placing coal or firewood in it, whereas each of the connectors 22 has a blind arched cavity 24 for a profiled element 25 moving along it, welded to the inner surface of the front and rear wall of the leg 3 and 3′, respectively.

[0048] A sheet metal protrusion 26 is welded to the upper middle outer part of the front wall of the bowl 23 of the fireplace 1, and a catch 27 is attached to the lower middle outer part of its right side wall by means of rivets, not shown in the drawings, and from the upper edges of both side walls of the bowl 23 vertical sheet metal flat offsets 28 protrude from their middle parts, and all upper corners of the bowl 23 are ended with lugs 29 having a profile of the inverted shape of the letter “U”, for cylindrical pins 30 connecting the side walls of the bowl 23 with the sheet metal rectangular side walls 31 of the fireplace 1 and the sheet metal frames 32 of the side shelves 33 of this grill, while four sleeves 34 are welded to the inner surface of the rear wall of the bowl 23, for a cylindrical pin 35 connecting this wall to the lower part 36 of the two-piece rear wall 37 of the fireplace 1.

[0049] Each frame 32 of the shelf 33 consists of two horizontal elements 38 (rear and front) ended with a through hole, not shown in the drawing, through which a pin 30 passes and which have, on the upper surface from the inner side of the fireplace 1, a matching flat plate 39 adjoining the inner surface of the side wall 31 of the fireplace 1, and from the outer side (outside the fireplace 1) are connected to the upper end of the vertical elements 40, the lower ends of which are connected to the profile 41 having the shape of the letter “C” in the top view. In addition, wooden slats 42 are screwed to the upper surface of the profile 41 of each frame 32, whereas a sheet metal hook 43 is screwed to the front end of the middle slat 42.

[0050] In turn, to the lower edges of the side walls 31 of the fireplace 1, in both their corners, two sleeves 44 are welded for the pin 30, between which a rectangular cavity 45 is made, in which a horizontal element 38 of the frame 32 of the shelf 33 is placed, while on the inner surface of the side walls 31, in their front part, upwardly situated, equidistant to each other, horizontal arched protrusions 46 are situated, on which a typical grill grate 47 is seated, while in the rear part both walls 31 are made with a vertical slot 48 passing through the rear sleeve 44, and a rectangular plate 49 is welded to the outer upper front part of the walls 31, on which the cover 2 is seated.

[0051] The rear wall 37 of the fireplace 1 consists of a sheet metal rectangular lower part 36 and a sheet metal rectangular upper part 50 connected to it by hinges with two vertically located and equidistant flat profiled recesses 51 made on their both sides, into which the U-shaped catch elements 52 are inserted of the back part of the grill grate 47. Three identical sleeves 53 are welded to the lower edge of the lower part 36 of the rear wall 37, the spacing of which matches the spacing of the sleeves 34 of the rear wall of the bowl 23 between which they are placed and through which the pin 35 passes forming a hinge connection of the bowl 23 with the lower part 36 of the rear wall 37 of the fireplace 1, while the upper edge of the lower part 36 of the rear wall 37 also ends with three sleeves 54 located at equal distances from each other, between which two sleeves 55 of the lower edge of the upper part 50 of the rear wall 37 are placed, whereas in the sleeves 54 and 55 a cylindrical pin 56 is inserted, also forming a hinge connection of the two parts in this way. In addition, the side edges of the lower part 36 of the rear wall 37 have flat offsets 36′ which adjoin to the plate 39 of the rear horizontal element 38 of the frame 32 of the shelf 33, stabilizing the structure of the fireplace 1, while the lower edge of the upper part 50 of the rear wall 37 between its two sleeves 55 in a vertical plane of the symmetry of this wall is provided with a “V”-shaped sheet metal element 57 with a hole 58 situated coaxially to a hole 59 made in the lower part 36 of the rear wall 37, whereas in the holes 58 and 59 a screw 60 is screwed ended from the top with a flat handle 60′, stabilizing vertical position of both parts of the rear wall 37.

[0052] In the upper side corners of the front surface of the upper part 50 of the rear wall 37, two cylindrical protrusions 61 in the shape of the letter “L” are welded, ended with a round plate 62 with larger diameter, which are located in the vertical slot 48 of the side walls 31. In turn, to the upper edge of the upper part 50 of the rear wall 37, three sleeves 63 are welded, equidistantly spaced from each other, which are placed between four sleeves 64 welded to the rear wall of the cover 2, whereas through the sleeves 63 and 64 a cylindrical pin 65 passes, connecting by hinges the upper part 50 of the rear wall 37 to the cover 2.

[0053] Two rectangular elements 66 are welded to the upper inner edge of the rear wall of the cover 2, for the grate 47 attached to the hooks 67 welded at the corners of the inner surface of the upper wall of the cover 2 (in the folded position of the grill). In turn, the front wall of the cover 2 in its middle part is bent inwards, creating a rectangular blind recess 68 with a rectangular cavity 69 made in it in its lower part, whereas in the upper part of this recess 68 two elongated through holes 70 are made, in which horizontal metal guides 71 of the handle 72 with a catch 73 are placed, in which a sheet metal flat protrusion 26 of the bowl 23 is placed (in the folded position of the grill).

[0054] The grill according to the second embodiment, shown in FIGS. 12-14, adapted for thermal processing of food by means of gaseous fuel, has a structure similar to the grill according to the first embodiment shown in FIGS. 1-11, and the difference between both of these embodiments is that in the latter embodiment, the front wall of the bowl 23 in its middle part has a rectangular blind recess 74 with two holes 75 in which knobs 76 connected to the gas distributor 77 are seated, the central part of which is connected by a gas hose 78 with a valve 79 fixed in a through hole 80 made in the central part of the bottom of the bowl 23, while both side parts of this distributor 77 are connected by gas hoses 81 with one end of typical elongated grill burners 82, the other ends of which are welded to the side walls of the bowl 23 and above which there are typical sheet metal aromatizers 83 of the grill, mounted on cylindrical protrusions 84 welded to the front and rear walls of the bowl 23.

[0055] It will be appreciated that the foldable grill bowl 23 may have one, four, five or more knobs 76 connected to the distributor 77, which is sequentially connected by gas hoses 81 to one, four or five burners 82.

[0056] In another embodiment of the grill according to the invention not shown in the figure, the handle 72 was equipped with a LED having a battery and a switch, which, when activated, makes visual control of the thermally processed food easier.

[0057] In order to fold the grill into a form resembling a transport suitcase, the cover 2 is tilted backwards, then the grate 47 is removed from the bowl 23 and placed on the rectangular elements 66 of the rear wall of the cover 2 and on the hooks 67 of the upper wall of this cover. Then, from the holes 58 and 59 of the rear wall 37 of the fireplace 1, the screw 60 is removed by means of its handle 60′, which enables folding of this rear wall 37 by tilting its upper part 50 and lower part 36 so that their hinge connection is moved towards the inside of the bowl 23, and the protrusions 61 of the upper part 50 move downwards along the slot 48 of the side walls 31 (as shown in FIG. 15). After folding the rear wall 37 and placing it over the inside of the bowl 23 in a position parallel to the bottom of the bowl, the side shelves 33 of the grill are tilted inside the bowl 23 so that they are also parallel to the bottom of the bowl 23, whereas during the tilting of the shelves 33 their horizontal elements 38 and vertical elements 40 pass through the cavities 45 of the side walls 31, and the wooden slats 42 pass over the offsets 28 of the bowl 23 so that the slats 42 adhere to the outer surfaces of the walls 31, after which the shelves 33 together with the wall 31 lean further to their position parallel to the bottom of the bowl 23 (as shown in FIG. 16), then the cover 2 is closed, and the guides 71 of the handle 72 are inserted through the through holes 70 to the inside of this cover, so that the handle 72 is matched with the front wall of the cover 2. Such position of the bowl 23, covered from above by the cover 2, is maintained as a result of placing the flat protrusion 26 in the catch 73 of the handle 72 of the cover 2. The grill folded to this form is placed on the rear wall of the bowl 23 and the rear wall of the cover 2, and the locking screw 21 is removed from the holes 17 and 17″ by means of its handle and the supports 15 and 15′ are folded towards the inner side surfaces of the legs 3 and 3′ with magnets 9 and 9′, by pivoting these supports on their arms 14 and 14′, whereas at time of folding the left support 15, the handle of the screw 21 is seated in the hole 7′ of the left leg 3. Then, the right leg 3′ is folded in rotation by sliding its profiled elements 25 along the blind arched cavities 24 of the arched connectors 22 of the bowl 23 towards the bottom of this bowl, and then the left leg 3 is similarly folded so that the wheels 11 of the right leg 3′ are situated in rectangular through recesses 7 of the upper surface of the side wall of the left leg 3 (as shown in FIG. 17). The position of these legs is locked by the hook 8 seated on the catch 27. The grill folded in this way is transported by the user on wheels 11, by pulling the grip 5 from the lower part of the left leg 3 (as shown in FIG. 18).

[0058] In turn, in order to unfold the grill, the above steps are performed in the reverse order.