HK1065356B - Grate - Google Patents

Description

Flame holder

Technical Field

The present invention relates to a flame holder for use on a stove; and more particularly to a flame holder having a baffle extending from a bottom surface of the flame holder.

Background

In a gas cooker or the like, a protective layer such as an enamel or a fluorine-containing coating is often provided on the upper surface of a faceplate in order to prevent boiled soup from adhering to the faceplate covering an opening on the upper surface of a cooker body. Further, although the iron flame holder is placed on the panel, the upper surface of the panel is scratched by the flame holder, and the upper surface of the panel is scratched. In particular, when a protective layer is provided on the upper surface of the panel, the panel is more easily scratched.

Therefore, flame holders that prevent flaws from being left when the upper surface of the panel is scratched by the flame holder have been disclosed in, for example, Japanese patent application laid-open No. 10-300104. In this conventional flame holder, a groove is formed in the bottom surface thereof, and a cushion body (gasket) is inserted into the groove.

However, the buffer body is only inserted into the groove on the bottom surface of the flame holder, and when the upper surface of the panel is severely rubbed by the flame holder, the buffer body is easily separated from the groove. Once the buffer body is separated, the panel cannot be prevented from being scratched, and the flame holder can enter an unstable state. Further, since the iron flame holder is relatively easy to transfer heat, the buffer member may be degraded or melted by heat transferred from the surroundings, and the buffer member may be detached from the groove.

Disclosure of Invention

The present invention has been made to solve the above-mentioned problems of the flame holder having the cushion body at the bottom surface portion thereof, and an object of the present invention is to provide a flame holder which can prevent the cushion body from coming off from the bottom surface portion, and can prevent the cushion body from being thermally deteriorated, thereby improving durability.

In order to solve the above problems, a flame holder according to the present invention is used for a cooktop, and includes: a concave groove which is concave upwards when looking upwards; the flame holder is characterized in that a heat insulating material is arranged between the buffer body and the top surface of the flame holder groove, and the buffer body is mounted in the flame holder groove by a screw with a head embedded in a recess arranged on the bottom surface of the buffer body.

The flame holder may include a plurality of claw pieces and a frame body connecting the claw pieces, and the groove may be formed on either a bottom surface of the claw pieces or a bottom surface of the frame body.

In the present invention, since the buffer body is screwed to the recess provided in the bottom surface of the flame holder, the buffer body does not come off the recess even if the upper surface of the panel is severely rubbed by the flame holder. Thus, the flame holder does not generate an unstable state, and the flame holder can be stably placed. In addition, the cushion body can prevent the panel from being scratched. Further, since the buffer body is mounted in the groove of the bottom surface portion of the flame holder via the heat insulating material, heat transferred from the groove to the buffer body can be reduced. As a result, the cushion body can be prevented from being thermally degraded, and the durability can be improved.

In the flame holder according to the present invention, the buffer member is mounted in the groove so as to be spaced apart from the side wall of the groove or to be in point contact with the side wall of the groove.

With this configuration, heat transferred from the side wall of the recess to the buffer can be further reduced, and the buffer can be more effectively prevented from being deteriorated by heat. In addition, when the buffer body is in point contact with the side wall, the buffer body can stop rotating, and when the buffer body is locked by a screw, the buffer body can be prevented from rotating along with the buffer body.

In addition, the flame holder of the present invention is characterized in that a receiving groove for receiving a part of the heat insulating member is formed on either or both of the upper surface of the buffer body and the top surface of the groove; a part of the heat insulating material accommodated in the accommodating groove is formed in a shape abutting against the side wall of the accommodating groove to be stopped from rotating.

According to the structure, the heat insulating material mounted in the groove is not easy to be seen from the outside, so that the appearance is not damaged. In addition, when the buffer body is installed, the heat insulation piece can be prevented from being misplaced in the buffer body or on the groove.

In the flame holder according to the present invention, a plurality of protrusions are provided on a bottom surface of a side wall portion of the recess of the damper.

With this configuration, the flame holder is less likely to slide with respect to the face plate, and the heat transmitted from the face plate to the cushion body can be reduced, thereby further improving the effect of preventing the cushion body from being deteriorated by heat.

In addition, the flame holder according to one aspect of the present invention includes a plurality of claw pieces elongated in a radial direction and a frame body connecting the claw pieces; the groove portion is a notch groove formed in the bottom of the claw piece in such a manner that both side surfaces in the longitudinal direction of the claw piece are open; a water cut-off part is arranged on the upper edge of the opening of the notch cutting groove.

According to the above aspect, since the water breaking part is provided, even if a large amount of soup drops on the claw piece, the soup drops along the water breaking part, and therefore the soup does not flow around the outer side surface of the claw piece into the groove. Thus, the heat insulating member is not wetted with the soup, and as a result, the heat insulating member can be prevented from being aged.

Drawings

Figure 1 shows a perspective view of a burner using the flame holder of the invention.

Fig. 2 is a sectional view of the oven shown in fig. 1.

FIG. 3 illustrates a bottom view of one embodiment of using the flame holder shown in FIG. 1.

FIG. 4: (a) showing a perspective view of the baffle body mounted on the flame holder of fig. 3, and (b) showing an exploded perspective view of the flame holder of fig. 3.

FIG. 5: (a) the drawings (a), (b) show a cross-sectional view and a bottom view, respectively, of the lower portion of the claw piece to which the cushion body in fig. 4 is attached, and (c) and (d) show a bottom view of a modification of fig. 5(b), respectively.

Fig. 6(a) to (c) show another embodiment of the flame holder of the present invention, which is a perspective view of the claw piece, a sectional view of a lower portion of the claw piece on which the cushion body is mounted, and a perspective view of the cushion body, in this order.

Detailed Description

The following describes embodiments of the present invention in detail.

The burner 10 is a built-in gas burner using a glass panel. The oven main body 12 is formed of a thin rectangular box, and the upper surface thereof is covered with a panel 13. The burner main body 12 is hung in the opening 3 of the counter 2 by locking a flange 12a at the upper end of the burner main body 12 to the periphery of the opening 3 provided in the counter 2 of the system kitchen.

The panel 13 is composed of a heat-resistant glass plate (ceramic glass) 13a and a panel frame 13b around the heat-resistant glass plate. Openings 14 are provided at the left and right sides of the panel 13 at substantially the center in the front-rear direction. The inner flame type burner 11 housed in the burner body 12 faces the opening 14. Ignition knobs 15 for operating the left and right gas burners 11 such as to ignite are provided at the center positions near the front surface of the panel 13. Further, a guard ring 16 is attached to a peripheral edge portion (opening edge portion) 13c of the opening 14 of the panel 13, and a flame holder 20 is placed around the opening 14 of the panel 13.

A liquid receiving plate 18 is disposed below the central opening 17 of the burner 11, and the liquid receiving plate 18 is supported by an annular locking bracket 12c attached to a support plate 12b of the burner main body 12. A cylindrical guide member 19 is disposed above the burner 11. The guide member 19 has a collecting portion 19a and a discharging portion 19b for discharging the flame guided in the center direction by the collecting portion 19a upward, wherein the collecting portion 19a is inclined upward and inward so that the collecting portion 19a can guide the flame in the center direction when the flame discharged from the flame holes 11a flows upward from below the panel 13.

The tip of the ejection portion 19b is located on substantially the same plane as the upper surface of the panel 13. Further, a gap G of several mm is provided between the tip of the ejection portion 19b and the guard ring 16 of the opening edge portion 13c of the panel 13. Further, the base portion 19c of the guide member 19 is mounted on the support body 12d with a gap T from the burner 11, and the support body 12d is mounted on the burner 11. So that air flows between the burner 11 and the guide member 19 and the flame is effectively guided to the central direction.

The flame holder 20 is composed of 6 claw pieces 21 that are long in the radial direction, and an annular frame 22 that connects these claw pieces. The flame holder 20 may be, for example, a ferrous product, and a groove is formed in a bottom surface portion thereof. Each claw piece 21 has a leg portion 21A projecting radially outward from the frame 22. The groove is formed in the bottom surface of the leg portion 21A, and the heat-resistant buffer 24 is attached to the groove 21A. The flame holder 20 is seated on the panel 13 via a cushion body 24 attached to a recessed groove of the leg portion 21A of the claw piece 21.

An annular projection 22a projecting downward is formed on the bottom surface of the frame 22, and a shelter 22b projecting inward is provided along the entire circumference at the base of the annular projection 22 a. When the flame holder 20 is seated on the upper surface of the glass panel 13a of the panel 13, the annular protrusion 22a enters the gap G. Thereby, the flame holder 20 is positioned by the tip of the emitting portion 19b of the guide member 19. At this time, the shielding portion 22b of the frame 22 of the flame holder 20 is located inward of the front end of the emission portion 19b of the guide member 19, and the outer periphery of the frame 22 of the flame holder 20 is located on the outer periphery of the protective ring 16. That is, the frame 22 covers the gap G. Therefore, even if the boiling liquid generated during cooking falls on the frame 22, the boiling liquid does not fall through the gap G.

In one example of the present embodiment, as shown in fig. 2, 4, and 5, the bottom surface of the leg portion 21A of the claw piece 21 of the flame holder 20 is cut in a specific direction perpendicular to the longitudinal direction connecting the outer end 21G and the inner end 21N of the claw piece 21 in the radial direction, to form the concave groove 21B. That is, the recess 21B is a cutout groove that opens at both left and right side surfaces 21C along the longitudinal direction of the claw piece 21, and has a rectangular shape in plan view. The heat-resistant cushion body 24 is disposed on the concave groove 21B via a heat-insulating mat 25 serving as a heat insulator. The cushion body 24 is made of, for example, silicone rubber having a heat-resistant temperature of 300 ℃, and the heat-insulating mat 25 is made of, for example, a nonwoven fabric of ceramic fibers. The cushion body 24 and the heat insulating mat 25 are fixed to the recess 21B by screwing the screw 26 having the head 26a embedded in the recess 24B of the lower surface of the cushion body 24 into the mounting hole 21B2 formed in the top surface 21B1 of the recess 21B.

At this time, since the heat insulating seat 25 is interposed between the upper surface 24U of the cushion body 24 and the groove 21B1, the cushion body 24 does not contact the top surface 21B 1. The lower portion 24K of the cushion body 24 projects a predetermined height H from the bottom surface of the leg portion 21A of the claw piece 21. Therefore, when the flame holder 20 is placed on the face plate 13, the cushion body 24 is in contact with the face plate 13, and the face plate 13 is not scratched.

Further, in order to prevent heat from being transferred from the side wall 21B3 of the groove 21B of the claw piece 21 to the buffer body 24, the buffer body 24 is formed in a small rectangular shape not in contact with the side wall 21B3, and the buffer body 24 is attached with a space from the side wall 21B 3.

Even when the cushion body 24 is in contact with the side wall 21B3, if the contact is point contact, heat is hardly transferred from the side wall 21B3 to the cushion body 24. Therefore, as another aspect, for example, as shown by the imaginary line in fig. 5(B), the side wall 21B3 may be formed in an arc shape, and only the corner point of the rectangular cushion body 24 may be brought into contact with the arc-shaped side wall 21B 3. As shown in fig. c, the structure may be such that a projection 28 is formed so as to project inward from the side wall 21B3, and the projection 28 is in point contact with the shock absorber 24. As shown in fig. d, a projection 29 projecting outward from the side surface of the cushion body 24 may be formed, and the projection 29 may be in point contact with the side wall 21B 3. Thus, the position of the cushion body 24 on the groove 21B3 is determined by the point contact of the cushion body 24 to the side wall 21B 3. This prevents the buffer 24 from rotating together particularly when the screw is locked.

Further, the cushion body 24 is preferably structured such that a rectangular receiving groove 24A is formed in the upper surface thereof, and a part (lower half) of the heat insulating mat 25 is received in the receiving groove 24A. According to this, since the heat insulating mat 25 attached to the recessed groove 21B is not easily visible from the outside, the appearance is not deteriorated, and when the cushion body 24 is attached to the recessed groove 21B, the heat insulating mat 25 can be prevented from being displaced with respect to the cushion body 24.

In this embodiment, the side wall 24A1 surrounding the accommodating groove 24A on the upper surface of the cushion body 24 is formed only on the side where the both sides of the concave groove 21B are open, that is, the side of the both side surfaces 21C of the leg portion 21A, and the side wall on the side facing the pair of side walls 21B3 of the concave groove 21B is cut so as to become the cutout portion 24A 2.

In addition, the heat insulating pad 25 accommodated in the accommodating groove 24A is positioned on the side wall 24A1 of the accommodating groove 24A by the side surface 25a1 thereof, and is locked in the accommodating groove 24A.

Further, a receiving groove 21B2 shown by an imaginary line in fig. 5a may be formed in the top surface 21B1 of the recess 21B, and the receiving groove 21B2 may receive a part (upper part) of the heat insulating mat 25. At this time, the upper portion of the heat insulating mat 25 is formed in a shape to be stopped after abutting against the side wall of the accommodating groove 21B 2. Even with such a configuration, since the heat insulating mat 25 attached to the groove 21B is difficult to see from the outside, the appearance is not deteriorated, and when the cushion body 24 is attached to the groove 21B via the heat insulating mat 25, the heat insulating mat 25 can be prevented from being displaced in the groove 21B.

Further, a side wall 24B1 surrounding the recess 24B of the lower surface of the cushion body 24 is formed only on the same side as the cutout 24A2 forming the container groove 24A, and the side wall on the side facing at right angles to the cutout 24A2 is cut to form a cutout 24B 2. Thus, the vertical shape of the cushion body 24 can be balanced to prevent deformation of the cushion body 24 when the screw 26 is tightened. 24c are holes for screws 26.

The accommodation groove 24A is formed in a groove shape between the 2-side walls 24A1 facing each other, but may be formed as a groove surrounded on the periphery by the side walls. The recessed portion 24B is also formed in a groove shape in the same manner, but may be formed so that the peripheral surface thereof is surrounded by a side wall.

Since the flame holder in the present embodiment is configured as described above, that is, the heat-resistant buffer body 24 is screwed to the concave groove 21B provided in the bottom surface portion of the claw piece 21 of the flame holder 20, the buffer body 24 does not come off even if the upper surface of the panel 13 is severely rubbed by the flame holder 20. Therefore, the function of preventing the cushion body 24 from scratching the panel 13 can be sufficiently achieved. In addition, since the cushion body 24 does not come off from the recess 21B, the flame holder does not generate an unstable state. The cushion body 24 is attached to the groove 21B via the heat insulating mat 25 with a gap between the side wall 21B3 of the groove 21B or with a point contact with the side wall 21B 3. That is, since the contact area between the side wall 21B3 and the cushion body 24 is reduced as much as possible, heat transmitted from the side wall 21B3 to the cushion body 24 can be reduced, and also deterioration of the cushion body 24 due to heat can be prevented, thereby improving durability.

Although the maximum temperature of the claw 21 of the flame holder 20 may reach 270 ℃, according to the present embodiment, the temperature of the cushion body 24 is only increased to about 220 ℃ which is lower than the claw temperature by about 50 ℃, and therefore, the deterioration of the cushion body 24 can be sufficiently prevented.

As another embodiment of the flame holder 20, as shown in fig. 6(a) and (B), a protruding piece 21D covering the heat insulating mat 25 may be formed on the upper edge of the opening of the concave groove 21B of the claw piece 21. The projecting piece 21D is formed integrally with the outer side surface 21C of the claw piece 21 and functions as a water cut-off part. In order to prevent heat from being transferred from the projecting piece 21D to the cushion body 24, a gap is provided between the projecting piece 21D and the cushion body 24. By providing the protruding piece 21D, even if a large amount of soup drops on the claw piece 21, the soup drops along the protruding piece 21D, and therefore the soup does not flow around the groove 21B from the outer side surface 21C of the claw piece 21. Thus, the heat insulating mat 25 is not soaked by the soup.

As shown in fig. 6(c), projections 27 may be provided at four corners of the bottom surface of the side wall portion of the recessed portion 24B of the heat-resistant cushion body 24. The projection 27 may be formed integrally with the cushion body 24. Thus, as shown in fig. 6(b), when the projection 27 of the damper 24 abuts against the face plate 13, the flame holder 20 is less likely to slide relative to the face plate 13, and the heat transmitted from the face plate 13 to the damper 24 can be reduced. Therefore, the effect of preventing the cushion body 24 from being deteriorated by heat can be further improved.

In the above embodiment, although the groove 21B of the flame holder 20 has a rectangular shape in plan view, it may be formed in an appropriate shape. Since the flame holder 20 is of a type in which the leg portion 21A of the claw piece 21 is landed on the panel 13, the recess 21B is provided in the leg portion 21A and the buffer 24 is attached, but not limited thereto. For example, the frame may be attached to a flame holder of a type in which the frame is placed on the panel 13 outside the protective ring 16 of the opening edge portion 13c of the panel 13, the concave groove may be provided in the bottom surface portion of the frame, and the cushion body may be attached.

Although the above description has been made of the flame holder applied to a gas burner using a built-in burner using a glass panel, the material of the panel of the burner may be a metal such as aluminum. Further, the cookers are not limited to the built-in cookers, and may be table-top cookers. The burner provided in the burner may be of any one of an inner flame type and an outer flame type.

Claims (9)

1. A flame holder used on a stove, wherein a bottom surface part of the flame holder is provided with: a groove recessed upward in a front view, the buffer body being installed in the groove in such a manner that a lower portion of the buffer body extends from a bottom surface portion of the flame holder,

a heat insulating member is provided between the buffer body and the top surface of the flame holder groove, and the buffer body is mounted in the flame holder groove by a screw having a head portion embedded in a recess provided in the bottom surface portion of the buffer body.

2. The flame holder of claim 1, wherein the damping body is mounted in the groove in a spaced relationship or in a point contact relationship with the side wall of the groove.

3. The flame holder according to claim 1, wherein a receiving groove for receiving a part of the heat insulating member is formed on either or both of the upper surface of the buffer body and the top surface of the recess; a part of the heat insulating material accommodated in the accommodating groove is formed in a shape abutting against the side wall of the accommodating groove to be stopped from rotating.

4. The flame holder according to claim 2, wherein a receiving groove for receiving a part of the heat insulating member is formed on either or both of the upper surface of the buffer body and the top surface of the recess; a part of the heat insulating material accommodated in the accommodating groove is formed in a shape abutting against the side wall of the accommodating groove to be stopped from rotating.

5. The flame holder according to claim 1, wherein a plurality of protrusions are provided on a bottom surface of the side wall portion of the recess portion of the damper body.

6. The flame holder according to claim 2, wherein a plurality of protrusions are provided on a bottom surface of the side wall portion of the recess portion of the damper body.

7. The flame holder according to claim 3, wherein a plurality of protrusions are provided on a bottom surface of the side wall portion of the recess portion of the damper body.

8. The flame holder according to claim 4, wherein a plurality of protrusions are provided on a bottom surface of the side wall portion of the recess portion of the damper body.

9. The flame holder according to any of claims 1 to 8, having a plurality of claw pieces elongated in a radial direction and a frame body connecting the claw pieces;

the groove is a notch groove formed at the bottom of the claw piece in a mode that two side surfaces along the longitudinal direction of the claw piece are opened;

a water cut-off part is arranged on the upper edge of the opening of the notch cutting groove.