WO2022093133A1

WO2022093133A1 - Pan support device and its production method

Info

Publication number: WO2022093133A1
Application number: PCT/TR2020/050926
Authority: WO
Inventors: Omer YANIK; Birant Ali KIRANLIOGLU; Elif Seyda ALATAS; Turgay KILIC
Original assignee: Mamur Teknoloji Sistemleri San. A.S.
Priority date: 2020-10-07
Filing date: 2020-10-07
Publication date: 2022-05-05
Also published as: EP4226093A1; EP4226093A4

Abstract

The invention relates to a production method for pan support for a hob comprising the steps of cut by means of a cutter (3), a flat metal sheet (10) along a first cutting line (13) in closed geometry in a way that a frame (20) is obtained; cut the metal sheet (10) along a second cutting line (16) so that at least one support leg (30) with a support section (36) corresponding to the frame (20) and a free end (33) elevated therefrom is obtained and fixing the support leg (30) from the support section (36) to the frame (20).

Description

PAN SUPPORT DEVICE AND ITS PRODUCTION METHOD

TECHNICAL FIELD

The invention relates to a pan support device that allows to dispose a pot on a top plate of the hob and its production method.

BACKGROUND OF THE ART

In order to cook on a gas hob, a pot is disposed on a burner at a height that provides a flame distance. A pan support is provided on a top plate of the hob and the cookware rest on the pan support aligned on the respective burner. The pan support has support legs elevated from the top plate. In one embodiment, the support leg in the hob is in the form of a frame surrounding the top plate and grate bars extending from the frame to each respective burner. In another embodiment, the frame of the hob around the burner is provided to surround the periphery with a circular frame. The support legs facing each other has an inverted L-like form elevated from the circular frame. Each support leg extends upward at equal height and bends towards each other, forming a supporting portion in a plane extending from its free ends parallel to the top plate.

A hob of the mentioned type is disclosed in EP3176508B1. Accordingly, two methods are used in the production of the pan support. According to the first method, the grate or frame part is poured into the mold in a first casting step. The mold is then prepared for a second casting step. In the second casting step, the frame portion or the corresponding support portion is cast in the mold. When the support section or the frame part is cooled, it remains attached to each other without the need for additional processing. According to the second method, the support section or the frame part is cast separately. The support section or the frame part is subjected to heat treatment against deformation as a result of thermal expansion. Next, the support section and the frame part are assembled. The support section and the frame part fit tightly together when cooled.

BRIEF DESCRIPTION OF THE INVENTION

The object of the invention is to simplify the production of pan support with a frame surrounding the burner. In order to achieve above objective, the invention relates to a pan support production method for a hob comprising the steps of cut by means of a cutter, a flat metal sheet along a first cutting line in closed geometry in a way that a frame is obtained; cut the metal sheet along a second cutting line so that at least one support leg with a support section corresponding to the frame and a free end elevated therefrom is obtained and fixing the support leg from the support section to the frame. In this way, instead of a complex method such as casting, intermediate products comprising a strip and support leg are obtained by simply cutting a metal sheet, for example, a steel sheet obtained by cutting from a steel roll, with a cutting method such as laser cutting, and these are joined together by welding or other methods to form the pan support. The cutter can cut the first and second cutting lines respectively, or the cutting process can be carried out simultaneously with a suitable device. The first cutting line can create a frame containing the outer edges of the metal sheet with a single line closed geometry, or cut inside the metal sheet by advancing in a double line.

In a preferred application of the invention, the first cutting line forming the frame is in a ring form, separating the metal sheet into an outer part and an inner part inside and the second cutting line contains closed geometry that shapes the support leg on the inner piece. In this way, the metal sheet is used efficiently, and the inner part of which the ring is formed is also used in the production of the support legs. Waste rate on metal sheet decreases.

In a preferred application of the invention, the first cutting line is in a circular form shaping a frame in the form of a collar. The collar form provides a thin frame that rest on the top plate of the hob from the corresponding lateral surface.

In a preferred application of the invention, comprising the process step of cutting the support leg and a duplicate auxiliary support leg from the metal sheet in which the support leg is disposed in mirror symmetry to each other. In this way, due to its two-dimensionally structure with its free end elevated from the lower part of the support leg, the second support leg, which is positioned in mirror symmetry, makes the most efficient use of the space left by the first support leg in the inner part.

In a preferred embodiment of the invention, the cutter includes a laser cutter. The laser cutter not only ensures that the first and second cutting lines are processed without deforming the sheet metal even in the very close parts of it, but also allows the intermediate product to be mounted directly to each other without the need for additional processing. In a preferred application of the invention, the first cutting line and the second cutting line are arranged separately one inside another. In this case, while the cutter unit forms the first cutting line, it is prevented from reaching the second cutting line and it is possible to remove the support leg and the frame from the sheet metal separately.

A preferred embodiment of the invention includes a pan support obtained by a production method described above. The pan support is comprising a circular flat metal strip frame and L-like support leg having a support section rest from a lower end to an upper part of the frame. The pan support obtained in this way is in a thin flat structure, in a structure that ensure minimum encounter with the burner flame and is of sufficient strength.

A preferred embodiment of the invention a groove cut on an outer edge of the frame and into which the support leg fits from its lower end. Thanks to the groove, the metal sheet part forming the support leg is easily positioned on the frame. Preferably, the groove width is set equal to or greater than the metal sheet thickness. In this case, the support leg can engage in the groove.

A preferred embodiment of the invention a hole is drilled by means of the cutter at the lower end of the support leg and a wedge is disposed inside the hole. In this way, the contact area for mounting the support leg on the frame is increased.

A preferred embodiment of the invention a recessed support section is provided at the lower end of the support leg and disposed to the outer edge from the corner. The support sectioning part allows the lower part of the support leg to sit on the frame by radial alignment, by leaning the corner of the flat frame obtained by cutting the metal sheet to the outer periphery.

A preferred embodiment of the invention the diameter of an inner edge of the frame is adjusted such that at least four same support legs fits inside. In this case, when the frame is cut from the metal sheet, a grid support kit can be formed with support legs that can be adapted to the frame on a single burner, for example, 90° to each other.

A preferred embodiment of the invention is a gas hob in which a hob is arranged around a frame, a burner and a cup. The gas hob includes a hob, which includes support legs around a single burner and is easily removable mounted on the burner, where it fits into the frame centered with a cup from the bottom of the support legs. BRIEF DESCRIPTION OF THE FIGURES

Figure 1 is the top schematic illustration of the steel sheet and cutting line used in the pan support production method, which is the subject of the invention.

Figure 2 is a disassembled perspective view of a representative embodiment of the pan support made of sheet metal.

Figure 3 is a schematic representation of the hob shown in Figure 2 surrounding a burner after assembly.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed explanation, the subject development of the invention is explained without any limitation and only with reference to examples to better explain the subject.

In Figure 1 , a metal sheet (10) plate made of steel material is shown from above. A frame (20) is delimited by a double-lined first cut line (13) in the form of a collar on the metal sheet (10). The metal sheet (10) is divided radially into two, forming the frame (20) and an outer part (12) and an inner part (15) remaining inside. The outer part (12) disposed between an outer edge (14) surrounding the metal sheet (10) and the frame (20). The inner part (15), on the other hand, is limited to the inside of the frame (20). The frame (20) is in the form of a ring and its opposite sides perpendicular to each other are in the geometry of a deformed circle running partially straight. On the first cutting line (13), a radial inward groove (23) indentation is formed on an outer edge (24) of the frame (20) in the middle of the flat parts, opposite to each other. A second cutting line (16) and support legs (30, 40, 50, 60) are formed on the inner part (15) delimited by the inner part of the first cutting line (13). Each support leg (30, 40, 50, 60) is L-shaped and has the same geometry with each other. The support leg (30) has a wide lower end (32) and a narrow free end (33) extended vertically from one end thereof. The second cut line 16 has a rectangular portion forming a hole 34 at the wide lower end 32 . The support legs (30, 40, 50, 60) on the inner part (15) are adjacent to the first cut line (13) that will form an inner edge (21) of the frame (20) from its outer edges. The support leg (30) and the auxiliary support leg (40) extend in mirror symmetry to each other, with the lower end (32) of one corresponding to the free end (33) of the other. On the other hand, the third support leg (50) extends parallel to the support leg (30) and in the same direction, and the fourth support leg (60) is positioned in mirror symmetry to the third support leg (50). A cutter 3 including a laser cutter is shown representatively on the first cut line 13. The cutter (3) covers the first and second cutting lines (13, 16) and proceeds by cutting the metal sheet (10) from one end to the other and removing the frame (20) and support legs (30, 40, 50, 60) from the metal sheet (10).

In Figure 2, the support legs (30, 40, 50, 60) to be mounted on the frame (20) obtained by cutting the metal sheet (10) are shown in perspective before assembly. At the lower end (32) of the support leg (30), a support section (36) is provided by forming a recess from the end part to the flat lower side. There is a hole (34) on the back of the support section (36). A silicone or rubber wedge (35) passes through the hole (34). Thus, the thin support section 36 is supported vertically to balance the load. The support section (36) is disposed on the frame (20) from a flat and flat upper part (22). The recess of the support section (36) and the width of the frame (20) are equal. In this way, when the support section (36) is placed on the frame

(20) from its upper part (22), the frame (20) does not form any extension on its inner edge

(21). In this case, the frame (20) remains hollow in the hob. The support section (36) engages with its inner corner contacting the groove (23) with the outer edge (24). Since the grooves (23) are distributed opposite each other and at an angle of 90° to the outer edge (24), place the corresponding support legs (30, 40, 50, 60) with their free ends (33) facing each other with the opposite support leg (30, 40, 50, 60). In the inverted L-shaped support leg (30), the lower end (32) forms the short and wide side. The long and narrow edge extending vertically from the elevated upper part of the lower end (32) reaches the free end (33).

In Figure 3, a hob, in which the support legs (30, 40, 50, 60) and the frame (20) are mounted together, is shown in perspective, adapted on a burner (1) disposed on the top plate (not shown) of the hob. The burner (1) is in a cylindrical form with a flame distributor providing a flame crown thereon and a cup (2) that rest on the top plate surrounds it. The cup (2) is a spacer and, among other things, it reduces the temperature of the burner (1 ) to reach the hob. The outer periphery of the cup (2) is in a geometry suitable for the inner edge (21) of the frame (20). Thus, the frame (20) is engaged from the outer periphery of the cup (2) and there is no freedom of movement when mounted. There is a burner (1 ) between the free ends (33) of the support legs (30, 40, 50, 60). Support legs (30, 40, 50, 60) are set higher than the burner (1). Thus, a cooking vessel (not shown) can be supported by the hob at a distance above the burner (1 ). The weight of the cookware is transferred from the support section (36) to the frame (20), thereby reducing the pressure on the hob top plate. The wedges (35) in the holes (34) form a soft foot and prevent the lower end (32) from scratching the top plate. REFERENCE NUMBERS

1 Burner

2 Cup

3 Cutter

10 Metal sheet

12 Outer part

13 First cut line

14 Outer edge

15 Inner part

16 Second cut line

20 Frame

21 Inner edge

22 Upper part

23 Groove

24 Outer rim

30 Support leg

32 Bottom end

33 Free end

34 Hole

35 Wedge

36 Support section

40 Auxiliary support leg

50 Third support leg

60 Fourth support leg

Claims

1- A production method for pan support for a hob comprising the steps of cut by means of a cutter (3), a flat metal sheet (10) along a first cutting line (13) in closed geometry in a way that a frame (20) is obtained; cut the metal sheet (10) along a second cutting line (16) so that at least one support leg (30) with a support section (36) corresponding to the frame (20) and a free end (33) elevated therefrom is obtained and fixing the support leg (30) from the support section (36) to the frame (20).

2- A production method according to claim 1 , wherein the first cutting line (13) forming the frame (20) is in a ring form, separating the metal sheet (10) into an outer part (12) and an inner part (15) inside and the second cutting line (16) contains closed geometry that shapes the support leg (30) on the inner piece (15).

3- A production method according to claim 2, wherein the first cutting line (13) is in a circular form shaping a frame (20) in the form of a collar.

4- A production method according to any of the previous claims, comprising the process step of cutting the support leg (30) and a duplicate auxiliary support leg (40) from the metal sheet (10) in which the support leg (40) is disposed in mirror symmetry to each other.

5- A production method according to any one of the preceding claims, wherein the cutter (3) is comprising a laser cutter.

6- A production method according to any one of the preceding claims, wherein the first cutting line (13) and the second cutting line (16) are arranged separately one inside another.

7- A pan support obtained by a production method according to any of the preceding claims, wherein a circular flat metal strip frame (20) and L-like support leg (30) having a support section (36) rest from a lower end (32) to an upper part (22) of the frame (20).

8- A pan support according to claim 7, wherein a groove (23) cut on an outer edge (24) of the frame (20) and into which the support leg (30) fits from its lower end (32).

9- A pan support according to claims 7-8, wherein a hole (34) drilled by means of the cutter (3) at the lower end (32) of the support leg (30) and a wedge (35) disposed inside the hole (34). 10- A pan support according to the claims 7-9, wherein a recessed support section (36) provided at the lower end (32) of the support leg (30) and disposed to the outer edge (24) from the corner.

11- A pan support according to claims 7-10, wherein the diameter of an inner edge (21 ) of the frame (20) is adjusted such that at least four same support legs (30, 40, 50, 60) fits inside.

12- A gas hob equipped with a pan support according to any one of the claims 7-11 , in which a frame (20) of a hob is arranged around a burner (1 ) surrounding a cup (2).