JP4065256B2 - Stove top - Google Patents

Description

  The present invention relates to a top plate for a stove that covers an upper end open portion of a stove body.

FIG. 1 shows a gas stove equipped with a stove top, which is an object of the present invention, and more specifically, a drop-in stove that is installed in a state of being dropped into an opening (K1) opened in a countertop (K) of a system kitchen. It is a perspective view.
This type of drop-in stove is equipped with a stove body (1) having an operation unit (10) (11) on the front and a top plate (2) covering the open upper end of the stove, and heating a pan or the like. Five virtues (41), (42) and (43) are disposed above the gas burners (31), (32) and (33).
FIG. 4 is a cross-sectional view showing a conventional structure of the top plate (2), and illustrates a range from the arrangement portion of the specific gas burner (31) appearing in FIG. 1 to the front side portion of the top plate (2). ing.

The outer peripheral frame (4) of the top plate (2) that covers the open upper end of the stove body (1) has an inner peripheral flange (49) extending horizontally, and the inner peripheral flange (49) has a glass plate (5 ) Outer peripheral portion (59) is placed. The peripheral edge (58) of the burner corresponding hole (57) opened in the glass plate (5) is covered with a protective cover (H) composed of upper and lower protective rings (54) and (55). Specifically, the inner peripheral edge (550) of the lower protective ring (55) is crimped by the lower end of the inner peripheral hanging wall (540) of the upper protective ring (54).
In addition, a metallic back plate (B) parallel to the glass plate (5) is provided adjacent to the lower side of the glass plate (5), and the outer peripheral edge (B1) of the back plate (B) is an outer peripheral frame (4). ) Is engaged with an engaging groove (48) formed in the inner periphery. On the other hand, the vicinity of the gas burner (31) in the back plate (B) is in contact with the lower surface of the lower protective ring (55).
In this case, since the back plate (B) is provided adjacent to the lower side of the glass plate (5), fragments when the glass plate (5) is broken are received by the back plate (B), Is prevented from scattering. Also, by providing the back plate (B), the light inside the stove body (1) (for example, the light of flame generated in the gas burner) is prevented from leaking upward through the glass plate (5). The glass plate (5) can be prevented from see-through.
Japanese Patent Laying-Open No. 2003-343841 (FIG. 4)

  However, in the above conventional one, when the gas burner (31) burns, hot air is trapped in the space below the pan (99) and the inner peripheral hanging wall (540) of the upper protection ring (54) is heated, so that the heat is The lower protective ring (55) is brought into a high temperature state by being transmitted from the caulking portion (541) at the lower end of the inner peripheral hanging wall (540) to the lower protective ring (55). Then, since the back plate (B) is in surface contact with almost the entire lower surface of the lower protective ring (55), a large amount of heat proportional to the contact area is transferred through the back plate (B) to the outer peripheral frame ( 4) and the outer peripheral frame (4) and the countertop (K) that supports it reach a high temperature, resulting in inconvenience to instrument users who touch the hot outer peripheral frame (4) and countertop (K). There was a problem of giving pleasure.

The present invention has been made in view of such points,
`` A top plate for a stove covering the upper end opening of the stove body (1) having a gas burner,
A glass plate (5) with an outer peripheral frame (4) attached along the outer periphery;
A metal protective cover (H) covering the periphery of the burner corresponding hole (57) opened in the glass plate (5) so as to face the gas burner;
A back plate (B) provided adjacent to the lower surface of the glass plate (5) and having an outer peripheral edge engaged with an inner periphery of the outer peripheral frame (4);
In the back plate (B), an opening to be overlaid on the burner-corresponding hole (57) is opened, and in the `` top plate for stove '', the metal protective cover (H) is heated with a gas burner. However, it is difficult for the heat to be transmitted to the outer peripheral frame (4) side through the back plate (B), thereby causing the inconvenience that the outer peripheral frame (4) and the countertop of the system kitchen on which it is placed become hot. Preventing this is the issue.

[Invention of Claim 1]
The technical means of the invention according to claim 1 for solving the above-mentioned problem is as follows:
“The protective cover (H) includes a convex portion protruding toward the upper surface of the back plate (B),
In the state where the back plate (B) is in contact with the convex portion, an air layer is formed between the lower surface of the glass plate (5) and the protective cover (H) and the upper surface of the back plate (B). I made a gap.
According to the above technical means, the protective cover (H) covering the peripheral edge of the burner corresponding hole (57) is provided with a convex portion protruding toward the back plate (B), so that the back plate (B) Contacts only at the convex portion. Therefore, the protective cover (H) and the back plate (B) are compared to the conventional one described above in which almost the entire lower surface of the lower protective ring (55) constituting the protective cover (H) is in surface contact with the back plate (B). This reduces the amount of heat transferred from the protective cover (H) to the outer peripheral frame (4) of the outer periphery via the back plate (B).

Further, according to the above technical means, in a state where the convex portion and the back plate (B) are in contact, the lower surface of the glass plate (5) and the protective cover (H) and the upper surface of the back plate (B). There is a gap that forms an air layer between them. Therefore, in the relationship between the protective cover (H) and the back plate (B), the upper and lower gaps between them function as an air heat insulating layer or a space allowing air flow. The temperature rise of the plate (B) can be effectively suppressed. Therefore, also from this point, heat transfer to the outer peripheral frame (4) can be suppressed.
In addition, when the back plate (B) is in contact with the convex portion provided on the protective cover (H), a gap is formed between the glass plate (5) and the back plate (B) to form an air heat insulation layer. Therefore, the amount of heat transferred directly from the glass plate (5) to the back plate (B) is smaller than when the glass plate (5) is in full contact with the back plate (B). Also from the point, heat transfer to the outer peripheral frame (4) can be suppressed.

[Invention of Claim 2]
In the invention according to claim 1,
“The convex portion is a metal plate constituting the bottom wall of the protective cover (H) protruding downward by drawing”.
In this case, a convex part is formed just by drawing the metal plate constituting the bottom wall of the protective cover (H), so a special part for the convex part that is separately manufactured is attached to the protective cover (H). Compared to the case, the projecting work of the convex part can be done easily and quickly.
[Invention of Claim 3]
In claim 1 or 2,
“The protective cover (H)
It is a combination of a metal upper protective ring (54) and a lower protective ring (55) that are joined together in a state where the periphery of the burner corresponding hole (57) established in the glass plate (5) is sandwiched from above and below. '' Can be.

The present invention has the following specific effects.
The contact area between the protective cover (H) and the back plate (B) is smaller than that of the conventional one described above, and the glass plate (5) and the protective plate are in contact with the convex portion of the protective cover (H) and the back plate. An air insulating layer or a gap allowing airflow is formed between the lower surface of the cover (H) and the upper surface of the back plate (B). Therefore, the high temperature of the back plate (B) can be suppressed, and the amount of heat transferred from the back plate (B) to the outer peripheral frame (4) and the countertop of the system kitchen that supports the back plate (B) is reduced, and these become hot. Can be prevented.
According to the invention which concerns on Claim 2, as already stated, the manufacture operation | work of the said convex part can be performed easily and rapidly.

Next, an embodiment of the present invention will be described.
FIG. 1 is a perspective view of a drop-in stove provided with a top plate (2) for a stove according to an embodiment of the present invention.
[overall structure]
This drop-in stove includes a stove body (1) having an operation portion (10) (11) on the front and a top plate (2) covering the upper open portion thereof, and the stove body (1) The gas burners (31), (32) and (33) disposed in the are exposed through the burner openings (21), (22) and (23) provided in the top plate (2). On the top plate (2), virtues (41), (42) and (43) are placed so as to face the gas burners (31), (32) and (33) from above.

Details of each part will be described below.
[Stove body (1)]
The stove body (1) for storing the gas burners (31), (32), and (33) includes a body case (13) formed in a rectangular box shape that is open upward, and a grill portion (G) at the center thereof. The structure is provided.
The operation portions (10) and (11) formed on the left and right sides of the grill portion (G) are provided with a heating power adjusting lever (101) for adjusting the heating power of the grill portion (G) and the gas burners (31), (32) and (33). Various switches (S) (S) such as (102) (111) (112) and point / fire extinguishing buttons (T) (T) and timers are arranged.

[Top plate (2)]
FIG. 2 is an exploded perspective view of the top plate (2) as viewed from below.
The top plate (2) is disposed along one long side of the outer peripheral frame (4), the rectangular glass plate (5) fitted into the outer peripheral frame (4), and the glass plate (5). And an exhaust port cover (7) (7) placed on the exhaust frame (6). Also, a three-plate back plate (B) comprising a central back plate (8) disposed below the glass plate (5) and side back plates (9) (9) disposed on both sides thereof. It has.

<Outer frame (4)>
The outer peripheral frame (4) is formed by bending a long mold material obtained by extrusion molding of an aluminum material into a rectangular shape by appropriately cutting the length.
As shown in FIG. 3, on the inner periphery of the outer peripheral frame (4) bent in a rectangular shape, a first retreating part (45) for inserting the outer peripheral edge of the glass plate (5), and a second following 2 The receding part (46) is formed, and the back side standing wall (461) of the second receding part (46) has a central backing plate (8) constituting the backing plate (B) and the sides on both sides thereof. A horizontal groove (462) for inserting the edges of the side back plates (9) and (9) and a vertical groove (463) bent downward from the back end thereof are formed.
As shown in FIG. 3, the outer peripheral frame (4) is attached to a rubber packing (15) fitted on the outer peripheral flange (14) protruding from the upper end of the main body case (13) constituting the stove main body (1). The rubber packing (15) is placed at a position surrounding the stove dropping opening (K1) opened in the countertop (K) of the system kitchen.

<Exhaust frame (6)>
The exhaust frame (6) is also formed by extrusion molding of an aluminum material, and the exhaust window (61) for exhausting the exhaust generated in the grill (G) is pressed and the outer long side The part (62) and the pair of short side parts (63) (63) are inserted into the horizontal groove (462) formed on the inner periphery of the outer peripheral frame (4).
Further, on the lower surface of the other long side portion (64) (the long side portion on the glass plate (5) side) facing the long side portion (62), a screw-like narrow groove (in the longitudinal direction) ( 65) is formed.

<Glass plate (5)>
The glass plate (5) is formed of ceramic glass and has three burner corresponding holes (57) described later formed concentrically with the gas burners (31), (32), and (33) described above. The upper and lower protective rings (54) and (55), which are protective covers (H), are attached to the peripheral edge of the burner corresponding hole (57).

《Upper and lower guard rings (54) (55)》
The mounting portions of the three protective covers (H) appearing in FIG. 2 have the same structure.
FIG. 3 illustrates a cross-sectional structure in a range from the arrangement of the protective cover (H) corresponding to the gas burner (31) appearing in FIG. 1 to the front side of the top plate (2).
As shown in FIG. 3, a seal packing (50) is fitted on the periphery of the burner corresponding hole (57) opened in the glass plate (5), and the mounting portion of the seal packing (50) is: Sandwiched between the upper and lower protective rings (54) and (55) that make up the protective cover (H), this protects the peripheral edge of the burner-corresponding hole (57) of the fragile glass plate (5). The damage is prevented.

The structure of the protective cover (H) will be further described in detail.
The metal upper protective ring (54) constituting the protective cover (H) is formed in an annular shape in plan view and has an inner peripheral hanging wall that bends downward from the inner periphery of the top annular plate (541). From the lower end of (540), the lower flange (542) is bent and protrudes inward. The inner periphery of the lower flange (542) is provided with six folded pieces (543) (543) arranged at a predetermined pitch in the circumferential direction, and the folded pieces (543) (543) Is wound around the inner peripheral edge of a lower protective ring (55), which will be described later.

  As shown in FIG. 2, the lower protective ring (55) made of metal constituting the protective cover (H) is formed in a square shape in plan view, and the lower protective ring is provided in the vicinity of the four corners. Four convex portions (552) and (552) formed by drawing down a metal plate (corresponding to the bottom wall of the protective cover (H)) constituting (55) are raised. As shown in FIG. 2, a central hole (553) is formed in the central portion of the lower protective ring (55) so as to overlap the central hole of the upper protective ring (54), and as shown in FIG. The outer peripheral edge (551) of the lower protective ring (55) is bent to the opposite side of the glass plate (5). As a result, when the outer peripheral edge (551) is a simple flat plate that is not bent to the opposite side of the glass plate (5), the metal plate end surface of the outer peripheral edge (551) of the lower protective ring (55) However, the outer peripheral edge (551) should be on the opposite side of the glass plate (5). The bending is taken into consideration by bending.

《Back plate (B)》
As shown in FIGS. 2 and 3, the central back plate (8) constituting the back plate (B) corresponds to the central hole (553) of the lower protective ring (55) constituting the protective cover (H). Openings (81), (81) and (81) are formed, and top plate support ribs (82) and (82) formed by drawing the central back plate (8) upward are provided.
In addition, the vicinity of the opening (81) opened in the central back plate (8) is close to or in contact with the raised portion (552) raised on the lower surface of the lower protective ring (55). Even if the vicinity of the burner-corresponding hole (57) of the glass plate (5) is slightly bent downward due to the load of the pan placed on (31), the bottom of the center back plate (8) and the protective cover (H) The protective ring (55) is in partial contact with the convex portion (552). This reduces the contact area between the two, compared to the conventional one in which the lower surface of the lower protective ring (55) is in surface contact with the central back plate (8) over almost the entire area, and the combustion of the gas burner (31). The heat of the upper protective ring (54), which is sometimes heated, is difficult to be transmitted from the lower protective ring (55) to the central back plate (8). Therefore, the outer peripheral frame (4) and the counter top (K) do not reach a high temperature state, and there is a disadvantage that thermal discomfort occurs when the instrument user touches the outer peripheral frame (4) or the counter top (K). Can be prevented.

In the stove top plate of the present embodiment, the glass plate (5) and the central back plate are brought into contact with the glass plate (5) by the projections (552) and top plate support ribs (82) (82) described later. A gap (J) is formed between the upper and lower sides of (8) to form an air layer, and also from this point, the amount of heat transfer from the glass plate (5) to the central back plate (8) is reduced.
The top ridge lines (820) (820) of the top plate support ribs (82) (82) are formed in an arc shape. If the top ridge lines (820) (820) are formed in an edge shape, the edge-shaped portion may collide with the glass plate (5) during assembly work, etc. This is to prevent the occurrence of

Further, the outer end portion (84) of the central back plate (8) is inserted into the horizontal groove (462) that opens to the inner periphery of the outer peripheral frame (4) and bends and bends from the outer end portion (84). The engagement piece (85) is engaged with the vertical groove (463) following the inner end of the horizontal groove (462). Further, the engagement between the vertical groove (463) and the engagement piece (85) prevents the outer peripheral frame (4) from bulging and deforming outward (in a direction away from the center).
Further, screw insertion holes (86) (86) are formed in the central back plate (8) along the long side of the exhaust frame (6) described above, from these screw insertion holes (86) (86). The center back plate (8) is fixed to the exhaust frame (6) by screwing tapping screws (87) (87) into the narrow groove (65) on the lower surface of the exhaust frame (6).
A plurality of preliminary holes (88) and (88) are formed in the vicinity of the screw insertion holes (86) and (86), and the above-mentioned are provided by tapping screws (87) screwed from the screw insertion holes (86). When the operation of forming the screw groove on the inner wall of the narrow groove (65) fails (in the case of a screw fool), the tapping screw (87) can be screwed again using the spare hole (88).

The outer peripheral edge of the side back plate (9) constituting the back plate (B) together with the central back plate (8) is also inserted into the horizontal groove (462) of the outer peripheral frame (4), and the central back plate (8 The coupling pieces (92) and (92) are erected on the long side portion (91) on the joining side to the contact portion.
Then, when the coupling pieces (83) and (83) on the center back plate (8) side corresponding to the coupling pieces (92) and (92) are overlapped and coupled with screws (80) and (80), The side back plate (9) and the central back plate (8) are connected and integrated with each other.
In this case, as described above, the lower protective ring (55) constituting the protective cover (H) and the central back plate (8) constituting the back plate (B) are partially formed by the convex portion (552). The lower protective ring (55) has a lower contact area than the conventional one in which the lower surface of the lower protective ring (55) is in surface contact with the central back plate (8) over almost the entire area. Become. When the convex part (552) and the central back plate (8) are in contact, the upper and lower sides of the central back plate (8), the side back plate (9), the glass plate (5) and the lower protective ring (55) Since a gap (J) as an air layer is formed between them, the heat of the upper protection ring (54) heated during combustion of the gas burner (31) is difficult to be transferred from the lower protection ring (55) to the central back plate (8). . As a result, there is no inconvenience that the outer peripheral frame (4) and the countertop (K) become hot and cause discomfort to the user.
In the above embodiment, the present invention is applied to the top plate (2) of the drop-in stove mounted on the counter top of the system kitchen. However, the present invention can also be applied to the top plate of the table stove.

Whole perspective view of a drop-in stove to which the stove top plate of the present invention is applied Disassembled perspective view of the top plate (2) Sectional view of the main part of the top plate (2) Illustration of conventional example

Explanation of symbols

(1) ... Stove body
(2) ... top plate
(4) ・ ・ ・ Outer frame
(5) ・ ・ ・ Glass plate
(31) (32) (33) ・ ・ ・ Gas burner
(54) ・ ・ ・ Upper protective ring
(55) ・ ・ ・ Lower protection ring
(57) ... Burner compatible hole
(552) ・ ・ ・ Convex
(B) ・ ・ ・ Back plate
(H) ・ ・ ・ Protective cover

Claims (3)

A stove top for covering the upper end opening of the stove body (1) having a gas burner,
A glass plate (5) with an outer peripheral frame (4) attached along the outer periphery;
A metal protective cover (H) covering the periphery of the burner corresponding hole (57) opened in the glass plate (5) so as to face the gas burner;
A back plate (B) provided adjacent to the lower surface of the glass plate (5) and having an outer peripheral edge engaged with an inner periphery of the outer peripheral frame (4);
In the back plate (B), an opening that is overlaid on the burner corresponding hole (57) is opened, in the stove top plate,
The protective cover (H) is provided with a convex portion protruding toward the upper surface of the back plate (B),
In the state where the back plate (B) is in contact with the convex portion, an air layer is formed between the lower surface of the glass plate (5) and the protective cover (H) and the upper surface of the back plate (B). A top plate for the stove with a gap. In the stove top plate according to claim 1,
The stove top plate is a stove top plate in which the convex portion is a metal plate constituting the bottom wall of the protective cover (H) protruding downward by drawing. In the stove top plate according to claim 1 or 2,
The protective cover (H) is
It is a combination of a metal upper protective ring (54) and a lower protective ring (55) that are joined together in a state where the periphery of the burner corresponding hole (57) established in the glass plate (5) is sandwiched from above and below, Stove top.

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