JP5121799B2 - Gas stove and gas stove packing - Google Patents

Description

  The present invention relates to a gas stove such as a table stove or a built-in stove, and a gas stove packing used for the gas stove.

FIG. 5 is a cross-sectional view of a conventional table stove. The table stove 40 has a top plate 42 having a circular through-hole 43 attached to the upper part of the body 41 having the burner 44, and the burner 44 is loosely inserted into the through-hole 43 so as to be exposed on the top plate 42. With the configuration, a cooking container (not shown) is placed on the virtues 45 provided on the top plate 42 and cooking by the burner 44 is possible.
In such a table cooker 40, it is necessary to seal the gap S so that boiled juice spilled from the cooking container does not enter the body 41 through the gap S between the through-hole 43 and the burner 44. As this sealing structure, here, a metal cover sleeve 46 that covers the inner peripheral surface of the through hole 43 while holding the ring-shaped packing 47 that contacts the periphery of the through hole 43 on the top plate 42 is fitted into the through hole 43. At the same time, a cover ring 48 that fits the burner 44 and covers the cover sleeve 46 is placed on the top plate 42.

  However, since the metal cover ring 48 is used in the seal structure of FIG. 5, the sealing performance is likely to be impaired due to molding errors, thermal deformation, and the like. Therefore, in Patent Document 1, an annular burner ring is interposed between the through hole and the burner, and a flange provided on the outer periphery thereof is placed on the upper surface of the edge of the through hole, while An invention in which a seal ring such as an O-ring is interposed between the two is disclosed.

JP 2002-13739 A

  In the seal structure of the above-mentioned patent document 1, since the seal ring which is a separate part is provided between the burner on the inner peripheral side of the burner ring, the horizontal or vertical position shift between the top plate and the burner. Can be absorbed, but if the top plate or burner is tilted or twisted due to mounting error or thermal expansion due to heating, misalignment associated therewith cannot be absorbed. Therefore, the sealing by the seal ring becomes insufficient, and there is a possibility that intrusion of the broth or the like is permitted from the burner side.

  Accordingly, the present invention is directed to a gas stove that can absorb a positional deviation due to tilting or twisting of the top plate or burner and more reliably seal a gap between the through hole of the top plate and the burner, and a gas stove packing that is preferably used for the gas stove The purpose is to provide.

In order to achieve the above object, according to the first aspect of the present invention, a top plate provided with a through hole is attached to the upper part of a body provided with a burner, and the through hole is loosely inserted to place the burner on the top plate. A gas stove in which a packing that seals the gap with the burner is fitted to the inner edge of the through hole, and the packing includes an upper wall portion that covers the upper surface portion of the top plate along the through hole, and A vertical wall portion that is provided around the inner peripheral edge of the wall portion and covers the inner peripheral surface of the through hole, and a peripheral wall that is provided at the lower portion of the vertical wall portion to close the gap, and the inner peripheral edge is on the entire periphery of the outer peripheral surface of the burner. And at least a lower wall portion closely contacting upward.
The invention according to claim 2 is characterized in that, in the configuration of claim 1, a flange portion that is thinner than the upper wall portion and is in close contact with the upper surface of the top plate is provided on the outer periphery of the upper wall portion. is there.
According to a third aspect of the present invention, in the configuration of the second aspect, a cover ring is placed above the packing, the outer peripheral edge contacting the upper surface of the flange portion and the inner peripheral edge contacting the outer peripheral surface of the burner. It is what.
According to a fourth aspect of the present invention, in the configuration of any one of the first to third aspects, a locking claw that is locked to the lower surface of the top plate is formed at the lower end of the vertical wall portion. .

In order to achieve the above object, the invention according to claim 5 is provided in a gas stove that allows a burner to be exposed on the top plate by loosely inserting a through hole provided in the top plate at the upper part of the vessel, and has an inner edge of the through hole. Gas stove packing that seals the gap between the burner and the upper wall portion that covers the upper surface portion of the top plate along the through hole, and is provided around the inner peripheral edge of the upper wall portion. At least a vertical wall portion that covers the inner peripheral surface of the inner wall and a lower wall portion that is provided around the lower portion of the vertical wall portion to close the gap, and the inner peripheral edge closely contacts the entire circumference of the outer peripheral surface of the burner. It is characterized by having.
According to a sixth aspect of the present invention, in the configuration of the fifth aspect, a flange portion that is thinner than the upper wall portion and is in close contact with the upper surface of the top plate is provided around the outer periphery of the upper wall portion. is there.
The invention according to claim 7 is characterized in that, in the configuration of claim 5 or 6, a locking claw for locking to the lower surface of the top plate is formed at the lower end of the vertical wall portion.

According to the first and fifth aspects of the present invention, the packing absorbs not only the horizontal displacement and the vertical displacement between the top plate and the burner but also the positional displacement due to the inclination and twist of the top plate and the burner. The gap between the top plate through-hole and the burner can be reliably sealed. Therefore, it becomes possible to effectively prevent intrusion of the broth or the like into the vessel from the top plate side and the burner side.
According to invention of Claim 2 and 6, in addition to the said effect, the sealing performance between a through-hole and packing improves by the surrounding arrangement of a flange part.
According to the third aspect of the invention, in addition to the effect of the second aspect, the use of the cover ring enables further sealing on the inner peripheral side and the outer peripheral side of the packing. Moreover, the temperature rise of the packing can be prevented to maintain the durability of the packing, and the appearance of the packing portion can be improved.
According to the inventions described in claims 4 and 7, in addition to the above effects, the formation of the locking claws increases the integrity of the packing and the top plate, leading to an improvement in the reliability of the seal.

It is a disassembled perspective view of a table stove. It is sectional drawing of a table stove. It is an expanded sectional view of a packing part. It is explanatory drawing of the packing for gas stoves, (A) is a plane, (B) is a front, (C) is a bottom face, (D) shows the AA cross section. It is sectional drawing of the conventional table stove.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of a stove part of a table stove 1 which is an example of a gas stove. A top plate 3 made of glass is provided on an upper portion of the body 2, and a circular through hole 4 is provided on the top plate 3. Is formed. Reference numeral 5 denotes a burner provided in the container body 2. As shown in FIG. 2, a mixing tube 6 to which fuel gas and primary air for combustion are supplied and fixed in the container body 2, and the mixing tube 6 The burner body is composed of a cylindrical burner body 7 which is fixedly attached to the upper end, loosely inserts the through hole 4 and protrudes on the top plate 3, and a disc-like burner head 8 placed on the burner body 7. .. Are formed radially between the burner head 7 and the burner head 8. Here, as shown in FIG. 3, a gap S is generated between the inner peripheral surface of the through hole 4 and the outer peripheral surface of the burner body 7 in the radial direction of the through hole 4.

Reference numerals 10 and 11 denote ignition electrodes and thermocouples provided on the outer peripheral side of the burner main body 7, and 12 denotes an upper end that penetrates the center of the burner 5 and accommodates the temperature sensor 13 so as to protrude above the burner head 8 so that cooking is not shown. It is a detection rod that contacts the bottom surface of the container and detects the pan bottom temperature. Further, a V-shaped groove 14 for positioning is recessed in the vertical direction on the outer peripheral surface of the burner body 7.
On the other hand, five virtues 15 are provided on the top board 3. The five virtues 15 are composed of five virtue claws 16, 16... That are erected radially around the burner 5, and a five virtue ring 17 having an L-shaped cross section that connects between the lower ends of the five virtue claws 16. By placing the outer peripheral lower surface of 16 on the top plate 3, the five virtue rings 17 are supported above the through holes 4 and in concentric positions.

  A gas stove packing (hereinafter simply referred to as “packing”) 20 is fitted into the through hole 4 of the top plate 3. The packing 20 is a rubber ring body, and as shown in FIGS. 3 and 4, an upper wall portion 21 covering the upper surface portion of the top plate 3 along the through hole 4 and an inner peripheral edge of the upper wall portion 21. The vertical wall portion 22 in the vertical direction covering the inner peripheral surface of the through hole 4 and the peripheral wall is provided from the lower end of the vertical wall portion 22 toward the center side of the through hole 4 to close the gap S, and the inner peripheral edge is a burner. A lower wall portion 23 that is in close contact with the entire outer periphery of the main body 7. However, a thinned barb 24 is formed on the inner peripheral edge of the lower wall portion 23 so as to face upward.

  A flange portion 25 thinner than the upper wall portion 21 is provided around the outer periphery of the upper wall portion 21, and a locking claw that is engaged with the lower surface of the top plate 3 is provided at the lower end of the vertical wall portion 22. 26, 26... Are projected in six locations in the circumferential direction. Reference numeral 27 denotes a triangular protrusion that protrudes from the inner peripheral edge of the lower wall portion 23 and fits into the groove 14 of the burner main body 7.

  Further, a cover ring 30 is provided between the upper part of the packing 20 and the five virtue ring 17. This cover ring 30 is made of a substantially inverted L-shaped metal, and a ring-shaped support edge 31 that abuts on the flange portion 25 of the packing 20 is provided around the outer peripheral edge downward. 30 is supported between the upper wall portion 21 of the packing 20 and the five virtue ring 17 in a non-contact manner. Further, the inner peripheral edge of the cover ring 30 is in contact with the outer peripheral surface of the burner main body 7, and below that, a downward thick portion 32 positioned between the vertical wall portion 22 of the packing 20 and the burner main body 7. It is installed around. In addition, a triangular projection 33 (FIG. 1) that fits into the groove 14 of the burner body 7 projects from the inner peripheral edge of the cover ring 30, and the upper surface of the cover ring 30 has an inner peripheral edge of the virtually ring 17. Positioning projections 34, 34 into which the formed notches 18, 18 are fitted are projected.

  In the table cooker 1 configured as described above, the packing 20 is pushed into the through hole 4 of the top plate 3 from above so that the vertical wall portion 22 is fitted to the inner peripheral surface of the through hole 4. At this time, the rotational position of the packing 20 is adjusted in advance so that the protrusion 27 is fitted in the groove 14 of the burner body 7 in advance. When the lower end locking claw 26 is locked to the lower surface of the top plate 3 after being pushed in, the upper wall portion 21 and the flange portion 25 are placed on the upper surface of the top plate 3 and the vertical wall portion 22 as shown in FIGS. Are in close contact with the inner peripheral surface of the through hole 4, and the lower wall portion 23 projects toward the center of the through hole 4. When the top plate 3 to which the packing 20 is assembled is mounted on the vessel 2 to which the burner 5 is assembled, the burner body 7 penetrates the through hole 4 and at the same time the return 24 of the lower wall portion 23 is placed on the outer peripheral surface of the burner body 7. Adhere closely.

  Next, when the cover ring 30 is fitted into the burner body 7 from above with the projection 33 also being aligned with the groove 14, the support edge 31 comes into contact with the flange portion 25 to cover the packing 20. Finally, if the Gotoku 15 is set on the top plate 3 so that the Gotoku ring 17 covers the cover ring 30 with the notch 18 aligned with the positioning protrusion 34 of the cover ring 30, the assembly of the stove is completed. To do.

  In this state, on the outer peripheral side (the top plate 3 side) of the packing 20, the upper wall portion 21 and the flange portion 25 of the packing 20 are in close contact with the top plate 3. The possibility of entering between the through holes 4 is very low. In addition, since the support edge 31 of the cover ring 30 is placed on the upper surface of the flange portion 25, the cover ring 30 also prevents intrusion of the broth or the like from the top plate 3 side. In particular, when cooking is performed, flame of the burner 5 and radiant heat from the cooking container are generated. However, since the packing 20 is covered with the cover ring 30, the temperature rise is suppressed and deterioration is suppressed.

  On the other hand, on the inner peripheral side (burner 5 side) of the packing 20, the inner peripheral edge of the cover ring 30 is in contact with the outer peripheral surface of the burner body 7. It stops and flows to the outside of the through hole 4. Further, even if boiled juice flows downward between the cover ring 30 and the burner body 7, the inner peripheral edge of the lower wall portion 23 is in close contact with the burner body 7. It is received by the wall 23 and collected here, and does not enter the body 2.

  Thus, according to the table stove 1 of the said form, the packing 20 is provided around the inner wall periphery of the upper wall part 21 which covers the upper surface part of the top plate 3 along the through-hole 4, and the upper wall part 21. A vertical wall portion 22 that covers the inner peripheral surface of the through hole 4 and a lower portion of the vertical wall portion 22 that are provided around the gap S to close the inner peripheral edge over the entire outer peripheral surface of the burner body 7. Since the lower wall portion 23 is provided, the packing 20 not only causes the horizontal displacement and the vertical displacement between the top plate 3 and the burner 5 but also the positional displacement due to the inclination and twist of the top plate 3 and the burner 5. The gap S between the through hole 4 of the top plate 3 and the burner 5 can be reliably sealed by absorbing. Therefore, it becomes possible to effectively prevent intrusion of the broth or the like into the vessel 2 from the top plate 3 side and the burner 5 side.

In particular, here, since the flange portion 25 which is thinner than the upper wall portion 21 and is in close contact with the upper surface of the top plate 3 is provided on the outer periphery of the upper wall portion 21, a seal between the through hole 4 and the packing 20 is provided. Increases nature.
Further, by placing a cover ring 30 with the outer peripheral edge abutting on the upper surface of the flange portion 25 and the inner peripheral edge contacting the outer peripheral surface of the burner 5 above the packing 20, the inner peripheral side and the outer peripheral side of the packing 20. Further sealing with is possible. Furthermore, the temperature rise of the packing 20 can be prevented to maintain the durability of the packing 20, and the appearance of the packing 20 portion can be improved.
In addition, since the locking claw 26 that locks the lower surface of the top plate 3 is formed at the lower end of the vertical wall portion 22, the integrity of the packing 20 and the top plate 3 is increased, leading to improved reliability of the seal. .

In the packing, the number, shape, and position of the locking claws are not limited to the above-described form, and the design can be changed as appropriate, such as being formed long in the circumferential direction or lengthening the locking portion to the lower surface of the top plate. However, the locking claw and the flange portion are not essential, and can be omitted if the upper wall portion and the vertical wall portion can adhere to the through hole.
Further, the lower wall portion of the packing is not limited to the lower end of the vertical wall portion, and may be provided at an upper position than the above form as long as it is a lower portion.
On the other hand, in the table stove, the cover ring is not essential, and can be omitted if a sufficient sealing performance can be obtained only by packing.
In addition, the top plate, the virtues, the burner, and the like are not limited to the above-described forms. For example, the present invention can be applied even if the top plate is made of metal or the burner is an inward flame type. Of course, it is not limited to the table stove, and other gas stoves such as a built-in stove may be used.

  1 ・ ・ Table stove, 2 ・ ・ Body, 3 ・ ・ Top plate, 4 ・ ・ Through hole, 5 ・ ・ Burner, 7 ・ ・ Burner body, 14 ・ ・ Groove, 15 ・ ・ 5 virtue, 16 ・ ・ 5 virtue claw , 17 .. Five virtue rings, 20 .. Gas stove packing, 21 .. Upper wall part, 22 .. Vertical wall part, 23 .. Lower wall part, 24 .. Flip, 25 .. Flange part, 26. Toe pawl, 30 ... cover ring, 31 ... support edge, S ... gap.

Claims (7)

A top plate provided with a through hole is attached to the upper part of the body provided with the burner, the through hole is loosely inserted to expose the burner on the top plate, and the burner is disposed on the inner edge of the through hole. A gas stove fitted with a packing that seals the gap between
An upper wall portion covering the upper surface portion of the top plate along the through hole, a vertical wall portion provided around the inner peripheral edge of the upper wall portion and covering the inner peripheral surface of the through hole, and A gas stove comprising at least a lower wall portion provided around a lower portion of the vertical wall portion to close the gap and having an inner peripheral edge closely contacting the entire periphery of the outer peripheral surface of the burner.   The gas stove according to claim 1, wherein a flange portion that is thinner than the upper wall portion and is in close contact with the upper surface of the top plate is provided around the outer periphery of the upper wall portion.   3. A gas stove according to claim 2, wherein a cover ring having an outer peripheral edge abutting on an upper surface of the flange portion and an inner peripheral edge abutting the outer peripheral surface of the burner is placed above the packing.   The gas stove according to any one of claims 1 to 3, wherein a locking claw that locks to a lower surface of the top plate is formed at a lower end of the vertical wall portion. For a gas stove that is provided in a gas stove that allows a through hole provided in the top plate of the upper part of the vessel to be loosely inserted to expose the burner on the top plate, and is fitted to the inner edge of the through hole to seal a gap with the burner Packing,
An upper wall portion that covers the top surface portion of the top plate along the through hole, a vertical wall portion that is provided around the inner peripheral edge of the upper wall portion and covers the inner peripheral surface of the through hole, and the vertical wall portion A gas stove packing comprising at least a lower wall portion provided around the lower portion to close the gap and having an inner peripheral edge closely contacting the entire circumference of the outer peripheral surface of the burner.   6. The gas stove packing according to claim 5, wherein a flange portion that is thinner than the upper wall portion and is in close contact with the upper surface of the top plate is provided around the outer periphery of the upper wall portion.   The gas stove packing according to claim 5 or 6, wherein a locking claw for locking to a lower surface of the top plate is formed at a lower end of the vertical wall portion.

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