JP4611356B2 - Gas stove - Google Patents

Description

  The present invention relates to a gas stove where the upper surface of a stove body is covered with a glass top plate in which the outer peripheral edge of a glass plate is surrounded by a protective body, and more particularly to an improvement in a protective ring attached to the opening periphery of a burner opening of the glass top plate.

  A glass top stove that covers the upper surface of the stove body with a glass top plate that protects the outer peripheral edge of the glass plate with a protective body such as a frame is known, and the burner opening established in the glass plate of the top plate protects the periphery of the opening. For the protection ring is installed.

  Conventionally, this protective ring has a cylindrical portion inserted into the burner opening, and upper and lower flange portions facing the upper and lower peripheral edges of the glass plate, and the upper and lower flange portions are interposed through the cylindrical portion. What was connected is known (for example, refer FIG. 2 of patent document 1).

  By attaching such a protective ring to the opening periphery of the burner opening, the opening periphery is protected. In addition, in order to prevent the simmered juice from falling into the stove body and protect the glass plate, a packing is inserted between the upper flange portion and the glass plate, or between the lower flange portion and the glass plate. Packing is inserted.

JP 10-318545 A

  By the way, in the conventional glass top plate, since the protective ring is a round shape, the protective ring turns when cleaning the top plate, and the surface of the glass plate burner opening peripheral edge and the opening inner peripheral surface are damaged, When the packing is inserted between the protective ring and the glass plate, there is a problem that the packing is worn out by the rotation of the protective ring, and as a result, the packing is dropped.

  The subject of this invention is providing the gas stove which does not damage a glass top plate with a protection ring in the case of cleaning etc., or the packing inserted by wears out or falls off.

In order to solve the above-mentioned problems, the present invention is a gas stove comprising a stove body that accommodates a gas burner and a top plate that covers an upper surface opening of the stove body, the top plate comprising a glass plate and an outer peripheral edge portion thereof. And a protective ring that protects the opening periphery of the burner opening established in the glass plate, the protection ring comprising a cylindrical portion inserted into the burner opening, and an upper surface of the opening periphery of the glass plate and facing the opening edge lower surface, in Bei Etaga Sukonro the upper and lower flange portions which are connected via a tubular portion, interposed a packing between the opening peripheral edge lower surface of the glass plate and the lower flange portion, The guard ring is configured to move along the opening periphery of the glass plate by providing a gap between the opening periphery of the glass plate and the peripheral surface of the tube portion, and the lower flange portion Insertion Characterized in that the formation of the annular recess to hold the gasket.

  According to the present invention, the packing inserted on the lower side of the glass plate is pressed against the glass plate, so that the sliding force acts from the lower flange portion by the rotation of the protective ring, so that the packing has a diameter from the lower flange portion. However, if the packing is held in the annular recess provided in the lower flange, the radial movement of the packing can be restricted. It is prevented from falling off from the part in the radial direction.

  According to the present invention, a horizontal portion facing the glass plate can be provided at the upper end of the outer peripheral portion of the annular recess of the lower flange portion, continuing from the upper end. In this way, even if the lower flange hits the lower surface of the glass plate by the rotation of the protection ring, the lower surface of the glass plate hits the lower surface of the glass plate with a horizontal surface. Furthermore, when the tip of the horizontal part is bent away from the glass plate, the tip of the horizontal part does not hit the lower surface of the glass plate, so there are edges and burrs on the tip of the horizontal part. However, the lower surface of the glass plate can be reliably prevented from being damaged.

  Hereinafter, an embodiment of a gas stove according to the present invention will be described with reference to FIGS. 1-4, the gas stove has covered the upper surface 52a of the stove main body 52 with the glass top plate 10. As shown in FIG. The stove body 52 is a rectangular box with an open top surface, and a flange portion 52b bent at the upper end of the peripheral wall of the stove body 52 is engaged with the periphery of an opening 53a provided in the work top 53 of the system kitchen. Accordingly, the work top 53 is suspended and installed in the opening 53a.

  The glass top plate 10 is a heat-resistant glass plate (ceramic glass) 2, a protective body 3 surrounding the outer peripheral edge portion thereof, and a protection attached to the opening peripheral edge of the burner opening 2 a opened at each position on the left and right sides of the glass plate 2. The gas burner 54 provided in the stove main body 52 faces the burner opening 2a, and the virtues 55 are placed outside the protective ring 20 of the glass plate 2. In FIG. 4, reference numeral 56 denotes a thermocouple that detects misfire of the burner 54. Reference numeral 59 denotes a soup cover that covers the gap between the flame guide 58 and the protective ring 20.

  The protector 3 is a support frame that supports the outer peripheral edge of the glass plate 2, but is also a member that protects the outer peripheral edge of the glass plate 2 together with this. Therefore, in the present invention, the protective body 3 means a material including a cushioning material interposed between the outer peripheral edge of the glass plate 2 and the support frame. In the present embodiment, the protector 3 is formed by assembling the front and rear two long frame members 4 and 5 and the two right and left short frame members 6 and 7 into a rectangular shape. The installation area | region of the glass plate 2 was provided between 6 and 7, and the outer-periphery edge part of the glass plate 2 was supported. In this example, furthermore, a rear piece 8 is passed with a gap behind the frame member 7 at the rear of the protector 3, and an opening 11 is formed between the frame members 5, 6, 7 and the rear piece 8. Yes. The opening 11 is used as an intake port. A hood-shaped guide 57 that guides air to the opening 11 can be placed between the rear frame member 5 and the rear piece 8.

  The rear piece 8 is formed in a cross-sectional structure having an edge portion 8b that protrudes inwardly from the lower end of the vertical wall 8a and a convex flange portion 8c that is curled in a downward direction from the upper end of the vertical wall 8a. The front frame member 4 and the left and right frame members 6 and 7 are also formed in the same structure. The end surfaces of the front frame member 4, the left and right frame members 6, 7 and the rear piece 8 at both ends in the longitudinal direction are inclined at an angle of 45 ° so as to become narrower inward. The rear frame member 5 is formed in a cross-sectional structure having an edge portion 5b that projects horizontally forward from the lower end of the vertical wall 5a. Edge portions 5b at both ends in the longitudinal direction of the rear frame member 5 are inclined at an angle of 45 ° so as to become narrower toward the inside.

  The rear piece 8 and the right frame member 7 are an inverted triangular head 8b1 provided at the end of the edge 8b of the rear piece 8 and a triangular shape provided at the end of the edge 7b of the frame 7. Are coupled by caulking the recesses 7b1. The rear piece 8 and the left frame member 6, the front frame member 4 and the left frame member 6, and the front frame member 4 and the right frame member 7 are also coupled in the same manner, and these four frame members 4, 6, 7 are combined. The rear piece 8 is assembled in a frame shape. The rear frame member 5 and the left frame member 6 are provided in the middle of the inverted triangular head portion 5b1 provided at the edge 5b of the rear frame member 5 and the edge 6b of the left frame member 6. The triangular recess 6b1 is joined by caulking. The rear frame member 5 and the right frame member 7 are combined in the same manner.

  The support part of the glass plate 2 is composed of rectangular support frame sides formed by the front and rear frame members 4, 5 and the horizontal edges 4b, 5b, 6b, 7b of the left and right frame members 6, 7. A glass plate 2 is placed thereon. Between the placed glass plate 2 and the vertical walls 4a, 5a, 6a, 7a of the frame members 4, 5, 6, 7 is filled with a silicon caulking material 9 as a buffer material, and the glass plate 2 Is firmly held in the protector 3 so as not to be displaced, and watertightness is secured.

  The protective ring 20 includes an upper ring 21 and a lower ring 22, and the upper and lower rings 21, 22 are cylindrical portions 21 b, 22 b inserted into the burner opening 2 a, an opening peripheral upper surface and an opening peripheral lower surface of the glass plate 2. In this example, the cylindrical portion 22b of the lower ring 22 is inserted into the burner opening 2a with a gap, and the cylindrical portion 21b of the upper ring 21 is connected to the lower ring 22 in the lower ring 22. It is fitted to the inner periphery of the cylindrical portion 22b. This gap has a dimension that does not exert a force on the inner peripheral surface of the burner opening 2a of the glass plate 2 even if the protective ring is thermally expanded.

  The cylindrical portions 21b and 22b of the upper and lower rings 21 and 22 have such a length that they are fitted over substantially the entire length in the vertical direction. On the other hand, for example, the cylindrical portion 21b of the upper ring 21 has a plurality of circumferential directions. Engagement holes 21c are formed at the locations, and protrusions 22c are formed at a plurality of locations in the circumferential direction that project radially inward in the cylindrical portion 22b of the lower ring 22. Then, the projections 22c are engaged with the engagement holes 21c so that the upper and lower rings 21 and 22 are coupled to each other so that the upper and lower rings 21 and 22 are not separated. By attaching such a protective ring 20 to the opening periphery of the burner opening 2a of the glass plate 2, the opening periphery is protected. In addition, although the protrusion 22c is cut and raised and formed with a claw, it may be an embossed protrusion.

  Further, a packing 23 is inserted between the upper flange portion 21a and the glass plate 2 so that the boiled juice spilled from the cooker opens the burner opening 2a from the gap between the upper ring 21 and the glass plate 2. The packing 23 prevents the glass plate 2 from passing around and is prevented from falling into the stove body 2. A packing 24 is interposed between the lower flange portion 22a and the glass plate 2 to protect the glass plate 2.

  In the present embodiment, an annular recess 22d is provided in the lower flange portion 22a, and the lower portion of the packing 24 inserted below the glass plate 2 is accommodated and held in the recess 22d. On the entire outer periphery of the annular recess 22d of the lower flange 22a, a horizontal portion 22f facing the glass plate 2 with a narrow gap is provided continuously from the upper end of the recess 22d.

  Since the packing 24 inserted below the glass plate 2 is pressed against the glass plate 2 by connecting the upper and lower rings 21 and 22, a sliding force is applied from the lower flange portion 22 a by the rotation of the protection ring 20. The packing 24 is easily detached from the lower flange portion 22a in the radial direction. As described above, if the annular recess 22d is provided in the lower flange portion 22a and the packing 24 is held in the recess 22d, the movement of the packing 24 in the radial direction can be restricted, so that the packing 24 is removed from the lower flange portion 22a. It is prevented from falling off in the radial direction. If the recess 22d is provided, the packing 24 can be easily positioned, and the assembly when the protective ring 20 is attached can be simplified. Moreover, if the horizontal part 22f is provided in the outer peripheral part of the recessed part 22d and it opposes the glass plate 2, even if the lower flange 22 hits the lower surface of the glass plate 2, it will be hard to be damaged on the lower surface of the glass plate 2. FIG.

  However, when the protective ring 20 rotates, the hanging portion 21d on the outer periphery of the upper flange portion 21a rubs the surface of the peripheral edge of the burner opening of the glass plate 2, or the cylindrical portion 22b of the lower ring 22 moves to the inner periphery of the burner opening of the glass plate 2. There is a risk of rubbing the surfaces, and there is a risk of scratching these surfaces.

  Therefore, in the present invention, the extension portion 22e is provided on the lower flange portion 22a to serve as a rotation preventing means for the protective ring 20. The extension portion 22e extends horizontally in one direction from the horizontal portion 22f of the lower flange portion 22a with a width substantially the same as the diameter of the lower flange portion 22a, and reaches and contacts the protector 3 of the glass plate 2. It has a length. In the present embodiment, the extension portion 22e extends rearward of the glass plate 2 in parallel with the left and right frame members 6 and 7 of the protector 3, and extends horizontally from the lower end of the vertical wall 5a of the frame member 5 behind the protector 3. It reaches the front end of the edge portion 5b extending in contact with the edge 5b.

  Preferably, downwardly bent pieces 22e1 are provided on both sides in the width direction of the extension 22e. In this way, since the contact portion is obtained in the height direction by the bent piece 22e1 instead of the contact with the front end of the edge portion 5b only by the plate thickness of the extension portion 22e, the front end of the edge portion 5b can be easily obtained. It is possible to make contact with the front end of the edge portion 5b. Further, the bending piece 22e1 improves the rigidity of the extension 22e, and can prevent the extension 22e from being deformed. This rigidity is better as the bent piece 22e1 is longer, but w shown in the figure is not 0, that is, it is sufficient that at least the cylindrical portion 22b and the bent piece 22e1 partially overlap each other.

  According to the present embodiment, even if a person contacts and rubs against the protective ring 20 for cleaning the glass top plate 10 or the like, the contact portion between the extended portion 22e of the lower flange portion 22a and the edge portion 5b of the rear frame member 5 is used. Becomes a resistance of rotation of the protection ring 20, and the protection ring 20 does not rotate. Therefore, the protective ring 20 rubs and scratches the surface of the opening periphery of the burner opening 2a of the glass plate 2 and the inner peripheral surface of the opening, and also protects the packings 23 and 24 interposed between the glass plate 2 and the protective ring 20. There is no problem that the ring 20 rubs and wears, and as a result, the packing falls off. Further, since the packing 24 is held in the annular recess 22d provided in the lower flange portion 22a, the movement of the packing 24 in the radial direction is restricted so that it is prevented from coming off the lower flange portion 22a. Further, the positioning of the packing 24 can be facilitated by the recess 22d, and the assembly when the protective ring 20 is attached can be simplified. Furthermore, since the horizontal part 22d provided in the outer peripheral part of the recessed part 22d is made to oppose the glass plate 2, even if the lower flange 22 hits the lower surface of the glass plate 2, the lower surface of the glass plate 2 is hard to be damaged.

  Another embodiment of the present invention will be described with reference to FIGS. In this embodiment, the glass top plate 30 of the gas stove has a burner opening 2a at each of the left and right positions near the front of the glass plate 2, and a burner opening 2b having a smaller diameter at the rear position between the left and right burner openings 2a. The protective ring 20 and the protective ring 20A are attached to the peripheral portions of the burner openings 2a and 2b, respectively.

  A packing 12 having a U-shaped cross section is fitted and attached to the outer peripheral edge of the glass plate 2, and the support frame of the protector 3 surrounds the outer peripheral edge of the glass plate 2 to which the packing 12 is attached. Yes. The support frame of the protector 3 is composed of two short left and right frame members 13 and 14 and two front and rear long frame members 16 and 17 using a fixture 15, and a glass plate in the middle By attaching 2, the top plate 30 is completed simultaneously with the completion of the assembly of the protective body 3. In this example, it is a protector without the opening 11 of the previous embodiment.

  As shown in FIG. 6, the fixture 15 has a protruding piece 15b protruding upward from the two side edges of a substantially right triangle-shaped horizontal portion 15a, and two screw holes at the inner end of the horizontal portion 15a. 15c is provided. As shown in FIG. 7, which is a view taken along the line XX in FIG. 5, the left frame member 14 defines a concave groove 14d that is opened inward by the upper piece 14a, the side piece 14b, and the lower piece 14c. The formed section is substantially U-shaped, and a screwing groove 14e is formed in the thickness of the side piece 14b. The ditch | groove 14d is a support part which accommodates the outer periphery part of the glass plate 2 to which the packing 12 was attached. The upper piece 14a is formed with a flange portion 14f whose outer edge is continuously connected outward. The right frame member 13 and the front and rear frame members 16 and 17 are also formed in the same structure. The end faces at both ends in the longitudinal direction of each frame member are inclined at an angle of 45 ° so as to have a narrow width toward the inside.

  In order to assemble the top plate 30, first, one end of two frame members 14 and 17, for example, are brought into contact with each other, and the fixing member 15 is horizontally placed on the lower surface of the lower pieces 14 c and 17 c of the frame members 14 and 17 that are in contact with each other. The projection 15b of the fixture 15 is applied to the outer surfaces of the side pieces of the frame members 14 and 17, and the screw 15d is inserted into the groove 14e of the frame members 14 and 17 from the screw hole 15c of the fixture 15 in this state. The fixing tool 15 is fixed to the frame members 14 and 17 by screwing into 17e. The two side edges of the glass plate 2 with the packing 12 attached to the outer peripheral edge portion are inserted into the recessed grooves of the frame members 14 and 17 to which one end is fixed, and then the remaining two side edges of the glass plate 2 are inserted. Insert the recessed grooves of the remaining frame members 14 and 16 to fix the fixed frame members 14 and 17 and the remaining frame members 14 and 16, and also connect the remaining frame members 14 and 16 to each other with the fixture 15 and the screw 15 d. By fixing, the protector 3 surrounding the glass plate 2 is assembled in a frame shape, and the glass top plate 30 is completed.

  Also in the present embodiment, the protective ring 20 attached to the peripheral edge of the opening of the burner opening 2a is provided with extended portions 22e having bent pieces 22e1 on both sides of the lower flange portion 22a of the lower ring 22. ing. The extension 22e is formed to have a width narrowed in accordance with the width of the inner end surface of the horizontal portion 15a of the fixture 15, and extends toward the inner end surface of the horizontal portion 15a so as to be in contact with the inner end surface.

  Further, the protective ring 20A attached to the peripheral edge of the opening of the burner opening 2b is the same except that it has a smaller diameter than the protective ring 20, and upper and lower rings 21A similar to the upper and lower rings 21, 22 of the protective ring 20, An extension portion 22E having a downward bent piece 22E1 is provided on both sides of the lower flange portion 22A1 of the lower ring 22A. The extension 22E of the lower flange portion 22A1 extends rearward of the glass plate 2 in parallel with the left and right frame members 13 and 14, and is used for holding the rear edge portion of the glass plate 2 to which the packing 12 in the rear frame member 17 is attached. In contact with the front end surface of the lower piece 17c of the concave groove.

  In particular, in the glass top plate 30 of this example, the packing 12 is attached to the outer periphery of the glass plate 2, and the lower piece 14 c and the horizontal portion 15 a of the fixture 15 are the back surface of the glass plate 2 by the thickness of the packing 12. Therefore, the tip of the downward bent piece 26 functions as a contact surface.

  In addition, it can also be set as a contact part by forming the inner side of the horizontal part 15a of the fixing tool 15 in the bending piece to the opposite side to the protrusion 15b.

  Even in this embodiment, even if a person contacts and rubs the protective rings 20 and 20A by cleaning the glass top plate 30 or the like, the protective rings 20 and 20A do not rotate, and the burner openings 2a and 2a of the glass plate 2 are not rotated. The surface of the opening peripheral edge of 2b and the inner peripheral surface of the burner opening are rubbed and damaged, or the packing inserted between the glass plate 2 and the protective ring 20, 20A is rubbed with the protective ring, and the packing is dropped as a result. It does not cause problems such as.

    In the embodiment shown in FIG. 8, the left and right frame members 131, 141 used in place of the left and right frame members 13, 14, the front and rear frame members 16, 17 of the protector 3 in FIG. 5, the front and rear frame members 161, 171 (only the rear frame member 141 is shown) has no lower piece. For example, the horizontal portion 151a of the fixture 151 attached to the frame members 141 and 161, the upper piece 141a and the side piece 141b of the frame member 141, and the horizontal portion. The adjacent side edge of the glass plate 2 to which the packing 12 is attached is held by the upper piece and the side piece of 152a and the frame member 161. The same applies to frame members 141 and 171 and fixtures attached thereto, frame members 131 and 161 and fixtures attached thereto, and frame members 131 and 171 and fixtures attached thereto.

  In the present embodiment, the extension 22e of the lower flange portion 22a of the lower ring 22 of the protective ring 20 is extended to the side of the glass plate 2 in parallel with the front and rear frame members 161 and 171, and the left and right frame members 131 and 141 are extended. The packing 12 was brought into contact with the front end of the lower piece 121a.

  In this example as well, other components other than the packing 12 of the protector 3, that is, the left and right frame members 131 and 141, the front and rear frame members 161 and 171, or the horizontal portion of the fixture 151 may be contacted.

  In the embodiment shown in FIG. 9, a frame-shaped frame portion 18 formed integrally by pressing a stainless steel plate is used as the outer frame of the top plate protector 3. The frame-shaped frame portion 18 has a horizontal upper surface portion 18a, an inclined portion 18b descending outward following the upper surface portion 18a, and an inner curled portion 18c following the lower end of the inclined portion 18 all around. The mounting portion 18d protrudes horizontally from a plurality of locations in the longitudinal direction near the upper end of the curled portion 18c, and the tip end portion of the mounting portion 18d is bent upward to form a vertical portion 18e. Further, an inward portion of the upper surface portion 18a is formed in an upper surface inclined portion 18f that slightly descends inward.

  Then, a screw hole (not shown) provided in the attachment portion 18d of the frame portion 18 of the frame portion 18 as the protector 3 and the fixture 19 is aligned, and the fixture 19 is attached to the attachment portion 18d by the screw 19a. The side edge portion of the glass plate 2 to which the packing 12 is attached is held by the fixture 19 thus attached, the vertical portion 18e of the frame portion 18 and the upper surface inclined portion 18f.

  In the present embodiment, the extension 22 e of the lower flange portion 22 a of the protection ring 20 is extended toward the fixture 19 of the protector 3 and is brought into contact with the front end of the fixture 19. The extension portion 22e includes a downwardly bent piece 22e1 as in the embodiment shown in FIGS. Also according to the present embodiment, the same effects as those of the previous embodiments can be obtained.

  10 to 11 show still another embodiment of the present invention. In all the embodiments so far, the description has been given of the drop-in type gas stove suspended from the opening of the work top of the kitchen as an example. However, the gas stove in the present embodiment is the bottom surface of the stove body 32. The leg 33 is placed on the work 53 of the kitchen and placed.

  The glass top plate 40 that covers the opening 32a on the upper surface of the stove body 32 surrounds the periphery of the glass plate 2 with a frame-shaped protective body 43. The protective body 43 has a horizontal portion 43b suspended from the inner peripheral end of the horizontal flange portion 43a in contact with the upper surface of the outer peripheral portion of the glass plate 2, and a hanging portion 43c suspended from the outer peripheral end of the flange portion 43a. The main body 32 is installed in the stove main body 32 so as to hang down from a step 34 a provided horizontally at a position near the upper portion of the side wall 34. A lower end portion of the hanging portion 43c is formed in an inwardly folded portion 43d. The glass plate 2 is bonded to the protective body 43 with a caulking material K.

  A protective ring 20 composed of upper and lower rings 21 and 22 is attached to the peripheral edge of the burner opening 2a opened in the glass plate 2, and a stove body 32 is attached to a lower flange 22a of the lower ring 22 as in the past. An extension 22e extending in the direction of the side wall 34 is provided. 10-11, the code | symbol same as the code | symbol attached | subjected to FIGS. 1-9 shows the same member.

  In the present embodiment, instead of providing downward bent pieces on both sides of the extended portion 22e, downward bent pieces 27 are provided at the tip of the extended portion 22e. And the receiving piece 28 which contacts this bending piece 27 was provided in the upper edge part 35 which protrudes inward from the upper end of the side wall 34 of the stove main body 32, and defines the opening 32a of the upper surface of the stove main body 32. As shown in FIG.

  The receiving piece 28 is a plate having an L-shaped cross section having a rectangular cutout portion 29 in the horizontal portion 28a, and the vertical portion 28b of the receiving piece 28 is retracted inward on the step 34a of the side wall 34. It is attached to the upper edge part 35 against the upper side wall part 34b. In order to prevent interference between the receiving piece 28 and the glass plate 2, a concave fitting portion 35 b having a horizontal portion 35 a is formed in the upper edge portion 35, and the horizontal portion of the receiving piece 28 is formed on the horizontal portion 35 a of the concave fitting portion 35. 28a is attached with a screw 28c.

  A downwardly bent piece 27 of the tip of the extension portion 22e of the lower flange 22 extends into a cutout portion 29 of a receiving piece 28 attached to the upper edge portion 35 of the side wall 34 of the stove body 32, and the cutout portion 29 contacts the inner surface. Therefore, even if a person contacts and rubs against the protective ring 20 by cleaning the glass top plate 40 or the like, the contact portion between the extended portion 22e of the lower flange portion 22a and the notched portion 29 of the receiving piece 28 is the contact portion of the protective ring 20. The protection ring 20 does not rotate due to the rotation resistance.

  In the above description, the receiving piece 28 is provided by screwing to the side wall 34 of the stove body 32. However, the receiving piece 28 may be formed directly on the side wall 34. Further, the downward bent piece 27 is provided on the extension 22e of the lower flange 22 and the notch 29 is provided on the receiving piece 28. However, the downward bent piece 27 is provided on the receiving piece 28 and the notch 29 is provided. May be provided on the extension 22e of the lower flange 22e. Further, the receiving piece 28 is not provided on the side wall 34 of the stove main body 32, and the bent piece 27 of the extension 22 e of the lower flange 22 is brought into direct contact with the inner surface of the side wall 34 of the stove main body 32 to protect the protective ring 20. The rotation may be prevented. Also in this example, an accommodation recess for the packing 24 can be formed in the lower flange 22a.

  FIG. 12 shows still another embodiment of the present invention. In the present embodiment, the protective ring 20 attached to the peripheral edge of the burner opening 2a of the glass plate 2 of the top plate is connected to the lower flange 38a of the lower ring 38 and the lower flange 22 of the lower ring 22 in the previous embodiments. Unlike 22a, there is no anti-rotation extension. 12, the same reference numerals as those in FIG. 2 denote the same members.

  Therefore, even if the protective ring 20 rotates, an annular recess 38d is provided in the lower flange portion 38a to prevent the packing 24 inserted below the glass plate 2 from dropping and the like. The lower part of the inserted packing 24 is accommodated and held in the recess 38d. A horizontal portion 38f facing the glass plate 2 with a narrow gap is provided on the entire outer periphery of the annular recess 38d of the lower flange 38a continuously from the upper end of the recess 38d. Further, the front end 38e of the horizontal portion 38f is folded in a direction away from the glass plate 2 as shown in FIG. 12B, and preferably folded inward as shown in FIG. 12A. Is formed. In FIG. 12, reference numeral 38b is a cylindrical portion of the lower ring 38, and 38c is an engaging piece thereof.

  Since the packing 24 inserted below the glass plate 2 is pressed against the glass plate 2 by connecting the upper and lower rings 21 and 38, a sliding force is applied from the lower flange portion 38 a by the rotation of the protective ring 20. The packing 24 is easily detached from the lower flange portion 38a in the radial direction. As described above, if the annular recess 38d is provided in the lower flange portion 38a and the packing 24 is held in the recess 38d, the packing 24 Since the movement of 24 in the radial direction can be restricted, the packing 24 is prevented from coming off from the lower flange portion 38a in the radial direction and dropping off. Further, if the recess 38d is provided, the packing 24 can be easily positioned, and the assembly when the protective ring 20 is attached can be simplified.

  Further, if a horizontal portion 38f is provided on the outer peripheral portion of the recess 38d and is opposed to the glass plate 2, even if the lower flange 38a hits the lower surface of the glass plate 2, the horizontal surface hits the lower surface of the glass plate 2. The bottom surface of 2 is hard to be scratched. However, as shown in FIG. 12C, when the tip portion 38e of the horizontal portion 38f remains horizontal, if there is an edge or a burr on the tip surface of the horizontal portion 38f, the lower flange 38a becomes the glass plate 2. There is a concern that the lower surface of the glass plate 2 may be damaged when it hits the lower surface of the glass plate 2. In the present embodiment, as described above, the front end portion 38e of the horizontal portion 38f is bent in the direction away from the glass plate 2, so that the front end surface of the horizontal portion 38f does not hit the lower surface of the glass plate 2. Even if there is an edge or a burr on the front end surface of the horizontal portion 38f, the bottom surface of the glass plate 2 can be reliably prevented from being damaged. When the front end portion 38e of the horizontal portion 38f is formed in a folded portion that is folded inward, the damage prevention effect of the glass plate 2 can be further improved.

It is the top view (a) and back view (b) which show the top plate in one embodiment of the gas stove of this invention. It is sectional drawing (a) which shows the rotation prevention method by the extension part of the protection ring attached to the burner opening peripheral part of the top plate of FIG. 1, and the expanded sectional view (b) of the attachment part of a protection ring. It is a perspective view which shows the lower ring of the protection ring of FIG. It is a partially omitted sectional view showing the whole gas stove. It is a back view which shows the top plate in other embodiment of the gas stove of this invention. It is a perspective view which shows the fixing tool which attaches the glass plate of the top plate of FIG. It is sectional drawing which shows the rotation prevention method by the extension part of the protection ring in the top plate of FIG. It is sectional drawing which shows the rotation prevention method by the extension part of the protection ring in other embodiment of the gas stove of this invention. It is sectional drawing which shows the rotation prevention method by the extension part of the protection ring in other embodiment of the gas stove of this invention. It is a partially-omission perspective view which shows the rotation prevention method by the extension part of the protection ring in other embodiment of the gas stove of this invention. It is sectional drawing which shows the rotation prevention method of embodiment of FIG. It is sectional drawing which shows the attaching part of the protection ring in other embodiment of the gas stove of this invention, (a, b) which shows the suitable example of a protection ring, and the figure (c) which shows a comparative example.

Explanation of symbols

2 Glass plate 2a Burner opening 3 Protective body 4-7 Frame material 8 Rear piece 9 Caulking material 10 Glass top plate 12 Packing 15 Fixture 20 Protective ring 21 Upper ring
21a Upper flange part 22 Lower ring
22a Lower flange part 22d Annular recess 22e Extension part 23, 24 Packing 26 Bending piece downward

Claims (3)

A gas stove comprising a stove body that houses a gas burner, and a top plate that covers the upper surface opening of the stove body,
The top plate includes a glass plate, a protector that surrounds the outer peripheral edge portion thereof, and a protective ring that protects an opening peripheral edge of a burner opening established in the glass plate, and the protective ring is disposed in the burner opening. a cylindrical portion that is inserted, opposite the opening peripheral top and opening peripheral lower surface of the glass plate, in Bei Etaga Sukonro the upper and lower flange portions which are connected via a tubular portion,
By inserting a packing between the opening peripheral lower surface of the glass plate and the lower flange portion, and providing a gap between the opening peripheral edge of the glass plate and the peripheral surface of the tube portion, the protective ring Configured to move along the opening perimeter of the glass plate,
The gas stove characterized by forming the annular recessed part which hold | maintains the said packing inserted in the said lower flange part.   The gas stove according to claim 1, wherein a horizontal portion facing the glass plate is provided at the upper end of the outer peripheral portion of the annular recess of the lower flange portion, continuing from the upper end.   The gas stove according to claim 2, wherein a tip of the horizontal portion is bent in a direction away from the glass plate.

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