JP2006090617A - Sealing device for drop-in cooking stove - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve top plate setting work efficiency and to prevent the easy detachment of a top plate in a sealing device for a drop-in cooking stove wherein a seal packing 5 seated on an opening edge part of a cooking stove opening 1a opened in a counter top 1 in a state of being mounted to an outer bent flange 21 of an upper edge of a cooking stove body 2 of the drop-in cooking stove, is shaped to have an inner peripheral side thick-walled part 51 mounted to the outer bent flange and an outer peripheral side thin-walled part 52, and a hanging plate part 31 at the outer periphery of the top plate 3 is seated on the thin-walled part and formed with a folded part 32 at the lower edge. <P>SOLUTION: A projecting piece part 57 projected outward is formed at a stepped surface of the outer periphery of the thick-walled part of the seal packing 5. The vertical position and outward projecting quantity of the projecting piece part 57 are set to allow the projecting piece part 57 to overlap with the upward projection plane of the folded part 32 in the state of seating the hanging plate part 31 of the top plate 3 on the thin-walled part 52. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sealing device for a drop-in stove that is disposed so as to drop a stove body into a stove opening established in a countertop.

  In a drop-in stove, generally, an outer bending flange is formed on the upper edge of the stove body, and the stove body is dropped into the stove opening of the countertop, and is then hooked to the mouth edge of the stove opening by the outer bending flange. The top surface is covered with a top plate over the outer bending flange from above.

  As such a drop-in stove sealing device, there is conventionally known a device provided with an annular seal packing seated on the mouth edge of the stove opening in a state of being mounted on the outer bending flange of the stove body (for example, , See Patent Document 1). This seal packing has a thick part on the inner periphery side that is attached to the outer bending flange, and a thin part on the outer peripheral side that protrudes outward from the lower part of the thick part. The hanging plate part is seated. In the above-mentioned publication, an inner bending flange is formed on the lower edge of the hanging plate portion of the top plate, and the inner bending flange is seated on the thin portion of the seal packing.

  By the way, as a safety measure, a folded portion folded upward on the inner surface side of the hanging plate portion may be formed on the lower edge of the hanging plate portion. In this case, the contact area of the drooping plate portion with respect to the thin portion of the seal packing becomes narrow, and the drooping plate portion is detached from the seal packing when the top plate is displaced even a little. Although it is conceivable to increase the width of the thin-walled portion as a measure against detachment, this causes the thin-walled portion to protrude from the hanging plate portion and impairs the appearance. Therefore, it is necessary to set a narrow gap between the step surface between the thick portion of the seal packing and the thin portion on the outer periphery of the seal packing and the inner surface of the folded portion of the hanging plate portion to suppress the displacement of the top plate.

  However, when the gap between the step surface on the outer periphery of the thick wall portion and the inner surface of the folded portion of the hanging plate portion is set to be narrow, the folded portion becomes a thick portion when the top plate is placed (set). It becomes easy to interfere with. Here, the thick portion is hardly elastically deformed in the width direction due to the influence of the outer bending flange attached to the thick portion, and if the folded portion interferes with the thick portion, the top plate cannot be set correctly by supporting it. Therefore, when setting the top plate, it is necessary to accurately position the top plate with respect to the seal packing so that the folded portion does not interfere with the thick portion, and the setting operation of the top plate becomes troublesome.

  In order to facilitate the setting work, it is conceivable to form the stepped surface on an inclined surface inclined inwardly upward, but in this case, if the folded portion interferes with the stepped surface, the frictional resistance causes the Since the plate may not be pushed down any further, the top plate must be aligned.

In addition, it is desirable to make it difficult to remove the top plate so that the user can not tamper with the built-in equipment of the stove body, but with conventional products, the top plate can be easily removed by pulling the top plate upward. Can be done.
Utility Model Registration No. 2513967 (FIG. 4)

  In view of the above points, an object of the present invention is to provide a sealing device for a drop-in stove that improves the workability of setting the top plate and prevents the top plate from being easily removed.

  In order to solve the above-mentioned problems, the present invention has an outer bending flange on the upper edge, and a stove that is hooked on the mouth edge of the stove opening by the outer bending flange in a state where it is dropped into the stove opening established in the countertop. A drop-in stove sealing device comprising a main body and a top plate that covers the top surface of the stove body over the outer bending flange from above, and the lip of the stove opening in a state of being mounted on the outer bending flange of the stove body The seal packing has a thick portion on the inner peripheral side that is attached to the outer bending flange and a thin portion on the outer peripheral side that projects outward from the lower portion of the thick portion. The thickness of the seal packing is such that a hanging plate portion on the outer periphery of the top plate is seated on the thin wall portion, and a folded portion is formed on the lower edge of the hanging plate portion so as to be folded upward on the inner surface side of the hanging plate portion. Meat part Projecting outwards in a positional relationship such that it overlaps the projection surface above the folded part of the hanging plate part with the hanging plate part of the top plate seated on the thin wall part on the step surface between the circumferential thin part The protrusion piece part to be formed is formed.

  According to the present invention, when setting the top plate, it is pushed by the hanging plate portion of the top plate and the protruding piece portion is bent downward, and the folded portion of the hanging plate portion is bent downward along the outer surface of the protruding piece portion. And descend. At this time, an outward pushing force due to the elastic restoring force of the projecting piece acts on the hanging plate part, and the top plate automatically adjusts the position so that this pushing force is uniform over the entire circumference of the top board. The top plate is accurately aligned with the seal packing. Thereafter, the folded portion comes out below the protruding piece portion, and the hanging plate portion is seated on the thin wall portion of the seal packing, and the protruding piece portion is restored to the original state protruding outward from the step surface. In this state, if the protruding piece part abuts the inner surface of the hanging plate part, or the protruding amount of the protruding piece part is set so that the gap between the protruding piece part and the hanging plate part becomes very small Even if the clearance between the step surface of the seal packing and the inner surface of the folded portion is wide, the top plate is prevented from being displaced by the projecting piece portion, and the hanging plate portion is prevented from being detached from the seal packing. As described above, according to the present invention, the top plate can be correctly set without accurately aligning the top plate with the seal packing, the workability of setting the top plate is improved, and the seal due to the deviation of the top plate is provided. Detachment from the packing can also be prevented.

  In addition, if the step surface of the seal packing is formed as an inclined surface inclined inwardly upward, the gap between the lower portion of the step surface and the inner surface of the folded portion is narrowed, and the top plate is displaced by the step surface. Therefore, it is not always necessary to suppress the displacement of the top plate by the protruding piece. In this case, there is a possibility that the folded portion interferes with and supports the step surface when the top plate is set. However, in the present invention, the top plate is accurately aligned with the seal packing by the guide action described above by the projecting piece portion. Therefore, the folded portion does not interfere with and support the step surface, and the workability for setting the top plate is improved.

  Moreover, once the top plate is set, even if the top plate is pulled up, the folded portion is hooked on the projecting piece, and the top plate cannot be easily removed. Therefore, it is possible to effectively prevent the user from tapping the built-in device of the stove body by removing the top plate.

  Further, if a downward bent portion is formed at the tip of the projecting piece, the bent portion bites into the folded portion when the top plate is pulled up, and the top plate becomes more difficult to remove.

  FIG. 1 shows a state where a drop-in stove is incorporated in the countertop 1 of the system kitchen. As shown in FIG. 2, the stove includes a box-shaped stove body 2 having an upper surface as an open surface. An outer bending flange 21 is formed on the upper edge of the stove body 2, and the outer bending flange 21 is placed at the mouth edge of the stove opening 1 a in a state where the stove body 2 is dropped into the stove opening 1 a opened in the countertop 1. The stove body 2 is suspended from the countertop 1 by being hooked. The top plate 3 covers the stove body 2 over the outer bending flange 21 from above.

  Referring to FIG. 1, the top plate 3 is formed with two burner openings 3 a that allow two stove burners (not shown) provided on the stove main body 2 to face. Two operation knobs 4 for the stove burner are arranged on the upper surface of the part. Although not shown, five virtues are placed on the top plate 3 so as to surround the burner opening 3a.

  With reference to FIG. 2, the outer bending flange 21 of the stove body 1 is fitted with an annular seal packing 5 over the entire circumference, and the outer bending flange 21 is connected to the edge of the stove opening 1 a via the seal packing 5. So that foreign matter such as simmered juice does not enter the stove opening 1a. The seal packing 5 is formed of an elastic material such as silicon rubber, and includes a thick part 51 on the inner peripheral side and a thin part 52 on the outer peripheral side projecting outward from the lower part of the thick part 51. The thick portion 51 is formed with an insertion groove 53 for the outer bending flange 21 and a hole portion 54. The outer bending flange 21 is fitted into the insertion groove 53 so that the seal packing 5 (thick portion 51) is attached to the outer bending flange 21. Further, as shown in FIG. 3, a plurality of ribs 55 project from the lower surface of the thick portion 51, and when the seal packing 5 is seated on the countertop 1, the ribs 55 are crushed and a good seal is obtained. I try to get sex. Further, the thin portion 52 is inclined obliquely downward in a free state, and when the seal packing 5 is seated on the counter top 1, the thin portion 52 is brought into close contact with the counter top 1 by an elastic restoring force. .

  A hanging plate portion 31 is formed on the outer periphery of the top plate 3 by press working, and the hanging plate portion 31 is seated on the thin portion 52 of the seal packing 5. A folded portion 32 is formed at the lower edge of the hanging plate portion 31 and is folded upward on the inner surface side of the hanging plate portion 31. The step surface 56 between the thick portion 51 and the thin portion 52 on the outer periphery of the seal packing 5 is formed as an inclined surface that inwardly slopes upward. And the clearance gap between the lower part of the level | step difference surface 56 and the inner surface of the folding | returning part 32 is set narrow, the shift | offset | difference of the top plate 3 is suppressed by the level | step difference surface 56, and the top plate 3 is removed from the seal packing 5 (thin part 52). It prevents it from coming off.

  Even when the stepped surface 56 is formed as an inclined surface in this way, the folded portion 32 interferes with the stepped surface 56 unless the top plate 3 is accurately aligned with the seal packing 5 when the top plate 3 is set. The top 3 may not be set correctly. Therefore, in the present embodiment, a protruding piece portion 57 that protrudes outward is formed on the step surface 56. The vertical position of the projecting piece portion 57 and the outward projecting amount are such that the projecting piece portion 57 is projected onto the projection surface above the folded portion 32 in a state where the hanging plate portion 31 of the top plate 3 is seated on the thin portion 52. Are set to overlap.

  According to this, when the top plate 3 is set, the projecting piece 57 is pushed by the hanging plate portion 31 of the top plate 3 to bend downward, and the folded portion 32 of the hanging plate portion 31 is bent downward. It descends along the outer surface of the part 57. At this time, an outward pushing force due to the elastic restoring force of the projecting piece portion 57 acts on the hanging plate portion 31, and the top plate 3 is automatically adjusted so that the pushing force is uniform over the entire circumference of the top plate 3. Accordingly, the top plate 3 is accurately aligned with the seal packing 5. Thereafter, the folded-back portion 32 comes out below the projecting piece portion 57, the hanging plate portion 31 is seated on the thin-walled portion 52, and the projecting piece portion 57 is restored to the original state protruding outward from the step surface 56. Thus, even if the top plate 3 is not accurately aligned with the seal packing 5, the top plate 3 is automatically aligned by the guide action of the projecting piece portion 57, so that the folded portion 32 is placed on the step surface 56. There is no interference and support, and the setting workability of the top 3 is improved.

  Further, once the top plate 3 is set, even if the top plate 3 is pulled up, the folded portion 32 is hooked on the projecting piece 57, and the top plate 3 cannot be easily removed. Therefore, it is possible to effectively prevent the user from tapping the built-in device of the stove body 2 by removing the top plate 3.

  If the protruding amount of the projecting piece portion 57 is excessively large, the projecting piece portion 57 in which the folded-back portion 32 bends downward is set between the stepped surface 56 and the thin portion 52 when the top plate 3 is set. The hanging plate part 31 is seated. Therefore, the protruding amount of the protruding piece portion 57 is limited, and in this embodiment, a gap is left between the protruding piece portion 57 and the inner surface of the hanging plate portion 31. Therefore, the displacement of the top plate 3 is substantially suppressed by the step surface 56.

  Next, a second embodiment shown in FIG. 4 will be described. In this structure, the thick part 51 is made thicker and the formation position of the projecting piece part 57 is made higher than that in the first embodiment. Further, the protruding amount of the protruding piece portion 57 is increased, and the protruding piece portion 57 is brought into contact with the inner surface of the hanging plate portion 31 so that the deviation of the top plate 3 can be suppressed by the protruding piece portion 57. In the second embodiment, the step surface 56 is not inclined, and a relatively wide gap is secured between the step surface 56 and the inner surface of the folded portion 32. This is because the projecting piece 57 is bent downward when the top plate 3 is set, and is strongly sandwiched between the step surface 56 and the folded portion 32, and the reaction resistance of the folded portion 32 becomes excessive due to the reaction force. This is to prevent this. When the step surface 56 is formed as an inclined surface as in the first embodiment, even if the gap between the lower portion of the step surface 56 and the folded portion 32 is narrowed, the projecting piece is set when the top plate 3 is set. Since a relatively wide gap is secured between the folded portion 32 and the upper portion of the step surface 56 where the portion 57 bends and contacts downward, the passage resistance of the folded portion 32 does not become excessive.

  In the second embodiment, a downward bent portion 57 a is formed at the tip of the projecting piece portion 57. According to this, when the top plate 3 is pulled up, the bent portion 57a bites into the folded portion 32, and the top plate 3 becomes more difficult to remove. Although not shown in the drawings, the tip of the projecting piece 57 may be formed in a bifurcated shape that branches vertically.

The perspective view of the state which incorporated the drop-in stove which comprises the sealing device of 1st Embodiment of this invention in the countertop. FIG. 2 is an enlarged sectional view taken along line II-II in FIG. 1. Sectional drawing of the free state of the seal packing of FIG. Sectional drawing of 2nd Embodiment corresponding to FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Countertop, 1a ... Stove opening, 2 ... Stove body, 21 ... Outer bending flange, 3 ... Top plate, 31 ... Hanging plate part, 32 ... Folding part, 5 ... Seal packing, 51 ... Thick part, 52 ... Thin-walled portion, 56 ... step surface, 57 ... protruding piece portion.

Claims (2)

There is an outer bending flange on the upper edge, and when it is dropped into the stove opening established on the countertop, the stove body that is hooked by the outer bending flange on the mouth edge of the stove opening, and the upper surface of the stove body is the outer bending flange A drop-in stove sealing device comprising a top plate covering from above, comprising an annular seal packing seated on the mouth edge of the stove opening in a state of being mounted on the outer bending flange of the stove body, Has a thick part on the inner peripheral side attached to the outer bending flange, and a thin part on the outer peripheral side projecting outward from the lower part of the thick part, and a hanging plate on the outer periphery of the top plate is provided in the thin part. In which the part is seated, and at the lower edge of the hanging plate part, a folded part is formed that is folded upward on the inner surface side of the hanging plate part.
Position on the step surface between the thick part of the seal packing and the thin part of the outer periphery of the seal packing so that it overlaps the projection surface above the folded part of the hanging plate part with the hanging part of the top plate seated on the thin part A drop-in stove sealing device, wherein a projecting piece projecting outward is formed.   The drop-in stove sealing device according to claim 1, wherein a downward bent portion is formed at a tip of the projecting piece.

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