JP3418113B2 - Stove - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stove capable of preventing a stove installation surface, a wall surface around the stove, and the like from being overheated.

[0002]

2. Description of the Related Art The size of a pot that can be properly heated on a stove is
There is a correlation with the capacity and size of the stove. When a pan that is large enough to cover the top of the stove is heated, hot air from the heating source collects in the gap between the top of the stove and the bottom of the pan, causing various inconveniences. The inconvenience will be described in more detail.

As an example of the stove, the drop-in stove (2) shown in FIG. 9 is designed to be attached to the countertop (11) of the system kitchen. A gas burner (31), which is a heating source, is arranged and fixed in the stove case (20) of the drop-in stove (2), and a hanging flange (23) surrounds the outer periphery of the upper end of the stove case (20). It is set up. Further, the upper end opening of the stove case (20) is covered with a dish-shaped top plate (41) having a recess (40) which is slightly smaller than this, and the inside of the recess (40) has a virtue ( The upper surface of the claw piece (54) of the Gotoku (51) and the outer peripheral flange (42) of the top plate (41) are substantially level with each other. As a result, the top of the stove is made to be flat, and Gokutoku (51)
So that the pan can slide smoothly between the countertop and the countertop (11).

In the drop-in stove (2), a rubber packing (200) is attached to a hanging flange (23) projecting from an outer periphery of an upper end of a stove case (20), and in this state, a mounting opening of a countertop (11) ( Drop into 12). Then, as shown by the imaginary line in FIG. 9, the suspension flange (23) engages with the peripheral portion of the mounting opening (12) of the countertop (11) from above. In this case, when a large pot (91) is placed on the Gotoku (51) as shown by the imaginary line in the figure, the upper area of the gas burner (31) is almost blocked by the pot bottom of the pot (91). It will be in a state of being. Therefore,
The hot air from the gas burner (31) collects between the pan (91) and the top plate (41), and the top plate (41) and the upper part of the stove case (20) in the vicinity thereof become hot. From this, the rubber packing inserted at the boundary between the stove case (20) and the countertop (11).
(200), countertop (11), etc. may be thermally damaged, and the wall surface around the stove top may be overheated.
Also, when the iron plate is placed on the Gotoku (51) and is used improperly, such as when cooking a grill, the upper surface of the stove is closed by the iron plate, and the same problem as described above occurs.

In order to solve the above problem, a structure as shown in FIG. 10 can be considered. That is, the top plate (41)
The temperature detector (71) is arranged in the gap between the outer peripheral standing wall (43) of the recess (40) and the stove case (20), and when the temperature detected by the temperature detector (71) exceeds the set temperature, the gas burner Extinguish (31).

In this case, each corner of the peripheral wall of the stove case (20) is bent at a right angle or a substantially right angle in a plan view, whereas the outer periphery of the recess (40) of the top plate (41) corresponding thereto is bent. Since the corners of the upright wall (43) are formed in an arc shape, the distance between the stove case (20) and the top plate (41) is determined by the peripheral wall of the stove case (20) and the outer periphery of the top plate (41). It is the largest in the above-mentioned corner portion than the side portions of the four sides of the standing wall (43). Therefore, if the temperature detector (71) is arranged in the wide corner,
Even if the temperature detector (71) and the holder thereof are relatively large, the temperature detection (71) is detected as shown in FIG. 10 as compared with the case where the temperature detector (71) is arranged in a narrow space other than the corner. The container (71) is easy to arrange.

[0007]

However, if the temperature detector (71) is installed in the above-mentioned corner portion in relation to the installation space as described above, it is abnormal that the large pot (91) or the iron plate is heated. However, there is a problem in that the temperature of the highest temperature part cannot be detected when it is used for a long time, and the gas burner (31) cannot be extinguished quickly.

The above problems will be described in more detail. Figure 11
As shown in, when a large pan (91) is placed above the gas burner (31), the outer peripheral standing wall of the recess (40) on the top surface of the top plate (41).
Of the (43), the intervals (433) and (434) between the front side (431) and the lateral side (432) and the outer peripheral edge of the pan bottom are the corners (435) at the four corners of the recess (40) and the outer peripheral edge of the pan bottom. Is less than the interval (439) of. Therefore, the combustion exhaust gas from the gas burner (31) flowing along the bottom of the pot is guided to the bottom of the pot and is guided to the front side portion (431) or the side portion (4).
32) and approach the front side part (431) and the side part (432) securely. On the other hand, since the distance between the outer peripheral edge of the pan bottom and the outer peripheral standing wall (43) in the corner portion (435) is large, the combustion exhaust gas does not come very close to the corner portion (435), and the corner portion (435) 435) The amount of combustion exhaust gas that directly contacts Therefore, in the outer peripheral standing wall (43) and the outer peripheral flange (42) of the top plate (41), the temperature in the vicinity of the corner portion (435) does not rise as compared with other portions, so that the corner portion (435) In the above-mentioned one that detects the temperature in the vicinity, the temperature detected by the temperature detector (71) does not rise so much. For this reason, the above cannot quickly extinguish the gas burner (31).

In the above description, the problem has been described by exemplifying the drop-in stove attached to the countertop of the system kitchen, but the table stove mounted on the cooking table or the like also has the same problem as described above. If it is used, there is a concern that the wall surface around the stove installation portion will be overheated as in the above case. The present invention has been made in view of these points, and the top plate (4
1) Early detection of overheating of the stove case (20) and the upper part of the stove case (20), or the stove installation part and the wall surface around it. The problem is to reliably prevent the inconvenience of being damaged.

[0010]

The technical means of the invention according to claim 1 for solving the above-mentioned problems is "a stove case (20) formed in a rectangular box shape and an upper end of the stove case (20). A bottom wall (4 that covers the opening and is slightly smaller than the top opening)
A top plate (41) having a recessed portion (40) formed with 5) and a first corner portion which is one of the four corner portions of the outer peripheral standing wall (43) on the outer periphery of the recessed portion (40). And a first corner portion which is one of the four corner portions of the stove case (20).
A temperature detector (71) provided in a corner gap is provided, and a gap between the outer peripheral standing wall (43) and the peripheral wall of the stove case (20) is defined by the outer peripheral standing wall (43) and the stove case (20). ) First
The first corner portion gap is set to be larger than the side portion gap displaced from the corner portion in the direction of the second corner portion or the third corner portion adjacent thereto, and the first corner portion gap is set to be larger than that of the outer peripheral standing wall (43). From the first corner to the second corner or the third adjacent to this
On the side of the side portion deviated in the direction of the corner portion, the distance between the heat source located in the recess (40) and the outer peripheral standing wall (43) was set to be smaller than the distance in the first corner portion. There is a narrow portion, a stove that stops the heating source when the temperature detected by the temperature detector (71) exceeds a set temperature,
It comprises a heat transfer member (A) for guiding the heat from the outer peripheral standing wall (43) corresponding to the narrow portion or the outer peripheral flange (42) at the upper end thereof to the heat sensitive portion of the temperature detector (71). is there.

According to the above technical means, the concave portion of the top plate (41)
Outer peripheral wall of (40) outer peripheral standing wall (43) or outer peripheral flange of its upper peripheral
Out of the (42), the heating source and the outer peripheral standing wall (inside of the side edge part of the outer peripheral standing wall (43), which is deviated from the first corner portion toward the second corner portion or the third corner portion adjacent thereto, ( A temperature detector (71) detects a temperature from a portion corresponding to a narrow portion whose distance from the first corner portion is set to be smaller than the distance from the first corner portion. That is, of the outer peripheral standing wall (43) and the outer peripheral flange (42),
The heat transfer member (A) transfers heat from a portion corresponding to a narrow portion having a smaller distance from the heating source than the first corner portion to the first corner portion.
The temperature is transmitted to the corner temperature detector (71), and the temperature is detected by the temperature detector (71). Then, when the detected temperature becomes equal to or higher than the set temperature, the heat generating operation of the heating source is stopped as in the conventional case.

According to a second aspect of the present invention, "The heat transfer member (A) is formed from a first corner portion of the outer peripheral standing wall (43) and the stove case (20) to a second corner portion adjacent thereto. Third
The plate has a plate portion that extends along a side portion deviated in the direction of the corner portion. ”In the side portion of the outer peripheral standing wall (43), the first corner portion to the second corner portion or the third corner portion A portion corresponding to a narrow portion where the distance from the heating source is smaller than that of the first corner portion due to deviation in the direction of the corner portion, or an outer peripheral flange
The heat of the portion corresponding to the narrow portion of (42) is efficiently collected by the plate portion having a predetermined area, and the collected heat is transmitted to the temperature detector (71).

According to the invention of claim 3, "the plate portion is
It is in contact with the outer peripheral standing wall (43) or the outer peripheral flange (42). In this case, compared with the case where the plate portion of the heat transfer member (A) is not in contact with the outer peripheral standing wall (43) or the like, the heat of the outer peripheral standing wall (43) or the like is transferred from the plate portion to the heat transfer member. The heat is surely absorbed by (A).

According to a fourth aspect of the invention, in the case where "the heat transfer member (A) is attached to the stove case (20) through a heat insulating spacer", the heat transfer member
The heat of (A) is blocked by the heat insulating spacer and is unlikely to leak to the stove case (20). According to a fifth aspect of the present invention, “The heat transfer member (A) has an elastic spacer for pressing the plate portion of the heat transfer member (A) against the top plate (41). The heat transfer member (A) is elastically pressed against the top plate (41) by the elasticity of the spacer so that the heat collection efficiency is improved.

According to a sixth aspect of the invention, it is possible that "the spacer is composed of a plurality of tongue pieces that are bent from the heat transfer member (A)". According to the invention of claim 7, "the heat transfer member (A) is continuously provided with a fitting leg fitted into a fitting hole formed in a wall of the stove case (20)". When the fitting legs connected to the heat transfer member (A) are fitted into the fitting holes of the wall of the stove case (20), they can be stably attached to the stove case (20). In this case, if a through hole is formed in the middle of the fitting leg or the middle of the fitting leg is narrowed, the effective area of the heat transfer path connecting from the base end portion of the fitting leg to the tip end will be the above-mentioned through hole forming portion or the like. Get smaller. Therefore, it becomes difficult for the heat of the heat transfer member (A) to escape to the stove case (20) via the fitting legs.

[0016]

As described above, according to the inventions of claims 1 to 7, the recessed portion (40) formed on the upper surface of the top plate (41).
A temperature sensor is provided in a gap between the first corner portion of the four corner portions of the outer peripheral standing wall (43) and the first corner portion of the four corner portions of the stove case (20), which is a gap between the first corner portion and the first corner portion. Even if 71) is provided, of the outer peripheral standing wall (43) or the outer peripheral flange (42) of the upper end outer periphery thereof, from the first corner portion of the outer peripheral standing wall (43) to the second corner portion or the second corner portion adjacent thereto. The part corresponding to the narrow part (the top part) which is set in such a manner that the distance between the heat source and the outer peripheral standing wall (43) in the side part deviated in the direction of the three corner parts is set smaller than the interval in the first corner part. The temperature from the part of the plate (41) that is likely to reach a high temperature) can be detected by the temperature detector (71). Therefore, even if the temperature detector (71) is arranged in the first corner gap, overheating of the top plate (41) and the stove case (20) in contact with the top plate (41) can be detected at an early stage. As a result, the top plate (4
It is possible to reliably prevent the inconvenience that the 1), the stove case (20), the stove-installed portion and the wall surface around the stove case are thermally damaged.

According to the second aspect of the invention, the heat efficiently collected by the plate portion of the heat transfer member (A) is transferred to the temperature detector (71), so that the sensitivity at the time of temperature detection is improved. According to the invention of claim 3, the plate portion is brought into contact with the outer peripheral standing wall (43) or the outer peripheral flange (42). Therefore, the plate portion is the outer peripheral standing wall (43).
The amount of heat transferred from the outer peripheral standing wall (43) and the like to the temperature detector (71) is larger than that in the case where the temperature detector (71) is not in contact with the outer peripheral upright wall (43) and the temperature can be detected more reliably.

According to the fourth aspect of the present invention, the heat of the heat transfer member (A) is blocked by the insulating spacer and hardly leaks to the stove case (20). Can communicate. Also, heat is unlikely to leak to the stove case (20),
It is possible to prevent thermal damage to the electronic components for control, etc., which are disposed in the stove case (20) and have poor heat resistance, and do not become hot.

According to the fifth aspect of the present invention, the elasticity of the spacer causes the heat transfer member (A) to be in close contact with the top plate (41) to increase the heat collection efficiency of the heat transfer member (A). ), The temperature can be detected more reliably. According to the invention of claim 7,
Since the heat transfer member (A) can be stably attached to the stove case (20), the heat transfer member can be vibrated when the pan (91) is hung up and down.
It is possible to prevent the inconvenience that (A) shifts from the proper position, and the reliability of the detected temperature is stable for a long time.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described with reference to the drawings. A rectangular frame-shaped frame as shown in FIG.
In the stove case (20) consisting of the (21) and the case main body (22) that is connected below it, the grill for grilling fish (10) for grilling fish etc.
Gas burners (31) (31) are provided, and the top opening of the stove case (20) is covered with a top plate (41). Gentoku (51) is accommodated and placed in the formed recess (40). And, in the portion of the hanging flange (23) that projects to the outer periphery of the upper end of the stove case (20) in the lateral direction of the stove, the outer peripheral standing wall of the recess (40) of the top plate (41) facing this ( Temperature detection device that detects the temperature of the 43) part and the outer peripheral flange (42) part
(7) is installed.

The details of each section will be further described below. [About stove case (20)] The stove case (20) is formed in a rectangular frame shape as a whole, and has a rectangular box-like shape at the lower end of the frame body (21) provided with a hanging flange (23) protruding to the outer periphery of the upper end. It is a case main body (22) is connected in series.
The whole stove case (20) is formed in a substantially rectangular box shape. The connecting structure of the case main body (22) and the frame body (21) is, as shown in FIGS. 2 and 6, a flange projecting from the inner periphery of the upper end of the case body (22) and the inner periphery of the lower end of the frame body (21). (225) and (215) are superposed and joined with screws (35) and (35).

A grill for grilling, which has a grill tray (14) that can be pulled out forward in the stove case (20).
(10) is provided, and gas burners (31) and (31), which are heating sources, are provided in the upper part of the stove case (20) at positions which are the vertices of a triangle in plan view. In particular,
Two gas burners (31) (31) are arranged laterally on the front side of the stove, and the remaining one gas burner (31) is arranged near the rear part of the stove case (20). Has been done. Further, an exhaust pipe (16) of the grill (10) stands upright at the rear of the stove case (20).

As shown in FIG. 2, a front wall (210) which is one side portion located on the front side of the stove of the frame body (21) and a lateral wall (one other side portion which is located in the horizontal direction of the stove). 211)
First to third fitting holes (25) (26) (27) are formed which are formed by cutting and raising these walls to the inner surface side and which penetrate vertically,
Fitting legs (72), (73) and (93) of a temperature detecting device (7) described later are fitted into the first to third fitting holes (25) (26) (27), respectively. There is. [Top plate (41) and Gotoku (51)] Stove case (2
The top plate (41) covering the upper end opening (28) of (0) is formed by squeezing a fluorine-coated stainless steel or an enamel-treated iron plate into a dish shape, and the top plate (41) is Top opening
A rectangular recess (40) in plan view is formed having a bottom wall (45) that is slightly smaller than the (28). Then, the first corner portion (95) of the four corner portions and the second and third corner portions (96) (96) (adjacent thereto) of the four corner portions in the plan view of the outer peripheral standing wall (43) of the recess (40) ( 97) and the fourth corner portion (98) diagonally opposite to this
Is formed in a somewhat large arc shape for reasons such as drawing and design. Therefore, when the top plate (41) is covered with the stove case (20), the outer peripheral standing wall (4
The first corner gap C between the first corner part (3) of (3) and the first corner part (241) of the stove case (20) (a bimetal switch (which will be described later as a temperature detector (71) at this part) 710) is arranged), the second corner portion (96) or the third corner portion (97) adjacent to the first corner portion (95) of the outer peripheral standing wall (43).
The side gap of the part displaced in the direction of, i.e., the front side (431) which is one side of the outer peripheral standing wall (43) or the side (432) which is the other side. Front wall of the stove case (20) (21
0) or wider than the side gap between the side wall (211).

In this embodiment, the stove case (20)
The above-mentioned first corner portion (241) of the
The (210) and the lateral wall (211) are connected to each other by the inclined wall (100) in the first corner portion (241) and have a substantially right-angled shape which is corner-cut, and has such a structure. However, the first corner gap C is larger than the side gap.

The above first corner gap C and the subsequent following
The size of the side gap will be further described. Shown in FIG.
Top plate that covers the upper opening (28) of the stove case (20)
The first coat of the outer peripheral standing wall (43) of the recess (40) formed in (41)
The first part of the inner part (95) and the corresponding stove case (20)
The first corner gap C with the corner (241) is equal to the first corner.
From the part (95) toward the third corner part (97) adjacent to this part
Side part, that is, one side part of the outer peripheral standing wall (43)
One side of the stove case (20) and the front side (431)
Side gap with front wall (210)₁ Getting bigger
There is. In addition, the first corner gap C is equal to the first corner.
From the part (95) toward the second corner part (96) adjacent to the part (95)
Side edge, that is, another side of the outer peripheral standing wall (43) of the top plate (41).
The side part (432) which is one side part and the stove case (20)
Side gap m with the lateral wall (211) that is one side of the₂ Yo
Is set larger. In addition, in the recess (40) of the top plate (41)
The gas burner (31) which is the heating source located and the outer peripheral standing wall (4
The distance from 3) is the distance S at the first corner (95).
The space L between the front side (431) and the side (432)₁ ，
L ₂ It is set larger. And the concave of the top plate (41)
The outer peripheral standing wall (43) of the portion (40) and the first corner portion (95)
First corner part with the first corner part (241) of the engine case (20)
In the gap C, the temperature sensor attached to the heat transfer member (A) described later
An intelligence device (71) is provided. And the heat transfer member
(A) is from the first corner portion (95) to the second corner portion (96).
The lateral side portion (43
The part of 2) corresponding to the narrow part (front side (431)
In the case of, the direction from the first corner part (95) to the third corner part (97)
Of the outer peripheral flange (42) of the top plate (41)
The part corresponding to the narrow part (the part corresponding to the front part (431)
In case of minutes, the direction from the first corner part (95) to the third corner part (97)
The temperature of the part that is shifted toward the
It has the function of leading to.

The bottom wall (45) of the recess (40) of the top plate (41) is provided with burner insertion holes (46) (46) which are fitted onto the gas burners (31) (31).
Is formed, the peripheral edge of the burner insertion hole (46) (46) is bent upward from the bottom wall (45), thereby,
Boiler spills that leaked from the pan during cooking were burner insertion holes (46) (4
It prevents leakage from 6) into the stove case (20).

In the vicinity of the rear part of the top plate (41), an exhaust pipe insertion hole (47) which is fitted on the exhaust pipe (16) of the grill (10) is formed. Gotoku housed in the recess (40) of the top plate (41)
The (51) is composed of a Gotoku frame (52) formed in a rectangular shape in plan view, and claw pieces (54) and (54) connected to the upper edge thereof. [About temperature detector (7)] The temperature detector (7) that detects the temperature of the top plate (41) is the case (711) of the bimetal switch (710) that functions as a temperature detector (71) and its mounting bracket. It is made of aluminum or copper having a high heat transfer rate except for (68).

The temperature detector (71) includes a heat transfer member (A) for transferring heat from the top plate (41) to the temperature detector (71) and a bimetal attached to the heat transfer member (A) via a mounting bracket (68). It consists of a switch (710). The structure of the temperature detecting device (7) will be described in more detail with reference to FIG. Heat transfer member (A)
As shown in FIG. 6, the upper plate (74) is configured to come into contact with the back surface of the outer peripheral flange (42) of the top plate (41) to exert a heat collecting function. 74) hanging plate (75) hanging from one side part is close to the outer peripheral standing wall (43) of the top plate (41), and the hanging plate (75) extends from the outer peripheral standing wall (43). It exerts the function of collecting the heat transferred through the nearby air layer. The upper plate (74) and the hanging plate (75) correspond to the above-mentioned plate portion. In addition, the tip of the hanging plate (75) (stove case
The horizontal plate (77) is bent so as to extend horizontally from the lower side near the front end of (20). And these upper plates (74)
The hanging plate (75) and the horizontal plate (77) form a heat transfer member (A). Also, at both ends in the longitudinal direction of the upper plate (74),
Tongue pieces (80) (80), which are spacers of the same size, which are inclined downward at the same angle, are continuously provided. And these tongues
(80) A space (56) for heat insulation between the upper plate (74) and the hanging flange (23) of the stove case (20) by the (80) as described later.
Is formed. The tongue pieces (80) (80) have some elasticity, which allows the upper plate (74) to be attached to the outer peripheral flange.
The back surface of (42) is elastically brought into close contact with it (Fig. 6).
reference).

Further, a tongue piece (81) bent toward the side wall (211) of the stove case (20) (specifically, the side wall of the frame (21)) is also provided at one longitudinal end of the hanging plate (75). Is provided. And
A space (57) for heat insulation is provided between the hanging plate (75) and the lateral wall (211) of the stove case (20) by the tongue piece (81) and a fitting leg (73) described later.
Form. Further, on the lower side of the hanging plate (75), the fitting legs (73) and (93) extend downward from a position closer to the front than the central part and from the rear end. In the middle of the fitting leg (73), the hanging plate (7
The same direction as the upper plate (74) of the upper edge of (5) is bent (stove case
A space holding part (70) is formed on the lateral wall (211 side) of (20), and the lower half part (731) bent downward from the end of the space holding part (70) is the hanging plate. It is parallel to (75).
Therefore, the lower half (731) is parallel to the lateral wall (211). Further, a through hole (79) is formed in the upper part of the fitting leg (73), and notches (61) are formed on both side portions near the lower end of the lower half part (731) of the fitting leg (73). ) (61) is formed. Then, as will be described later, attach the temperature detecting device (7) to the stove case (20).
When it is attached to the second fitting hole (26), the lower bent tip (610) can be bent by the cutouts (61) and (61) below the second fitting hole (26). The through hole (79) is formed in the fitting leg (73) by reducing the effective area of the heat transfer path from the fitting leg (73) to the stove case (20) in contact with the fitting leg (73). This is to prevent heat from escaping to (20).

The fitting leg (93) hanging from the rear end of the hanging plate (75) is also constructed in the same manner as the fitting leg (73). or,
At the tip of the horizontal plate (77) that bends horizontally from the stove front side end of the hanging plate (75), the frame body above the stove case (20)
A fitting leg (72) that is bent and hung parallel to the front wall (210) of the (21) is provided, and the through hole (7) is provided in the middle of the fitting leg (72).
A long hole (78) that performs the same function as 9) has been opened.
Further, the notches (61) are provided on both side portions near the lower end of the fitting leg (72).
Notches (60) and (60) similar to (61) are formed.

A bimetal switch (710) functioning as a temperature detector is attached to the horizontal plate (77).
As shown in FIG. 4, the bimetal switch (710) is supported from below by a mounting bracket (68) which is bent in an elliptical cross section, and both ends of the mounting bracket (68) are connected to the horizontal plate. It is fixed with screws (700) (700) against (77). The bimetal switch (710) consists of a case (711) and upper / lower blocks (714) (71)
3) A movable contact (729) and a fixed contact (7), which are clamped vertically at the outer periphery and are arranged so that their tips overlap with each other.
28). Further, the upper end of the elevating shaft (727) that vertically penetrates the central portion of the upper block (714) is in contact with the lower surface of the bimetal (726), which is an arc-shaped thermosensitive element that is convex upward. Both ends of (726) are upper blocks (714)
Engages with the groove (725) in the inner peripheral wall of the recess formed on the upper surface of the.

Therefore, the horizontal plate (77) with which the heat-sensitive part (720) of the bimetal switch (710) as the temperature detector (71) contacts.
When the temperature rises, the bimetal (726) is deformed by the heat transferred from the horizontal plate (77) to become horizontal and the lifting shaft (727)
Is pushed down, whereby the movable contact (729) is separated from the fixed contact (728) and is turned off. Also, as shown in FIG. 4, the lead wire (7
21) (721) has been pulled out.

The temperature detecting device (7) is attached to the stove case (20).
The frame body that constitutes the stove case (20)
The first to third fitting holes (25), (26) and (27) formed in the front wall (210) and the lateral wall (211) of (21) are fitted into the fitting legs of the temperature detecting device (7).
Insert the (72) (73) (93), and insert the notches (60) (61) (61) into the bent tips (600) (610) (610) of the lower ends of the fitting legs (72) (73) (93). ) Part is bent as shown in FIG. Then, the bent tip (60
0) (610) (610) engages with the lower edge peripheral portions of the first to third fitting holes (25), (26) and (27) and is in a retaining state. In this state,
When the heat transfer member (A) is held in the uppermost position by the elastic tongues (80) (80) and the upper side (74) is suppressed, the tongue
(80) The fitting legs (72), (73) and (93) slide in the first to third fitting holes (25), (26) and (27) against the elasticity of the (80). .
The temperature detecting device (7) is attached to the tongue piece (80) (8
(0) is attached to the stove case (20) so as to be movable in the biasing direction and the anti-biasing direction by the first fitting hole.
(25) to third fitting hole (27) and fitting legs (72), (73) and (93).

Further, the temperature detecting device (7) is attached to the stove case (20).
When assembled to the heat transfer member (A), the tip of the tongues (80) (80) that are inclined and bent downward from both ends of the upper plate (74) of the heat transfer member (A) is the hanging flange on the outer periphery of the upper end of the stove case (20). It abuts against the surface of (23), which causes the stove case (2
A space (56) for heat insulation is formed between the hanging flange (23) of 0) and the upper plate (74). Further, as shown in FIG. 6, the lower half portions (731) (9) of the fitting legs (73) (93) provided in the temperature detecting device (7)
31) is the side wall of the frame (21) located above the stove case (20)
While contacting the inner surface of (211), the tongue piece (81) formed at one end of the hanging plate (75) contacts the lateral wall (211) of the frame body (21), whereby the hanging plate (75). A space (57) for heat insulation is secured between the stove case and the stove case (20). In this way, the heat transfer member (A) and the stove case (2
The temperature detecting device (7) is attached to the stove case (20) in a state where the space (56) (57) for heat insulation is secured between (0).
Further, when the temperature detecting device (7) is attached, the bimetal switch (710) is located at the front right corner portion where the operation knob (84) is arranged in the manner as shown in FIG. Then, in this state, when the top plate (41) is covered with the stove case (20) as described later, as shown in FIG. 8, the first corner portion (95) of the outer peripheral standing wall (43) of the top plate (41). The bimetal switch (710) is located in the first corner gap C between the first corner portion (241) of the stove case (20) and the corresponding one. still,
As shown in FIG. 1, the above first in the stove case (20)
Second and third corner portions (242) (2) adjacent to the corner portion (241)
43) is the second and third corner portions of the outer peripheral standing wall (43) of the top plate (41)
Corresponding to (96) and (97), the remaining fourth corner portion (not shown) in the stove case (20) corresponds to the fourth corner portion (98) of the outer peripheral standing wall (43). ing. [Blowout safety circuit] The combustion state of the gas burner (31) is monitored by the blowout safety circuit shown in FIG.

As shown in FIG. 5, in the gas circuit (85) to the gas burner (31), a gas cock (83) and a safety valve (82) are sequentially inserted from the upstream side, and the former gas cock (83) is The operation knob (84) provided on the front surface of the stove case (20) is used for opening and closing. On the other hand, the safety valve (82) is opened and closed by the solenoid valve unit (86). Specifically, when the flame detection sensor (32) consisting of a thermocouple is heated by the gas burner (31), an electromotive force is generated, which causes an electromagnetic valve unit (86) (of the electromagnetic coil excited by the electromotive force). With a magnetic force, the valve has a function of holding the valve body in the open state against the spring that tries to close the valve body), and the safety valve (82) is maintained in the open state. When it disappears, the solenoid valve unit (86) is deenergized and the safety valve (82) is closed by a spring. A bimetal switch (710) that functions as a temperature detector (71) and opens and closes the closed circuit is provided in the closed circuit including the solenoid valve unit (86) and the flame detection sensor (32). Therefore, when the temperature of the horizontal plate (77) in contact with the heat-sensitive part (720) of the bimetal switch (710) becomes higher than the set temperature, the bimetal switch (710) is turned off and the solenoid valve unit (8
6) is de-energized, which closes the safety valve (82).

A circuit for outputting "H" and "L" signals according to opening and closing of the bimetal switch (710) may be constructed, and the safety valve (82) may be controlled by the "H" and "L" signals. It is possible. [Assembly Work] Next, an operation of assembling the drop-in stove to the countertop (11) of the system kitchen will be described.

As shown in FIG. 6, the stove case (20) to which the temperature detecting device (7) is attached is dropped into the rectangular mounting opening (12) of the countertop (11) of the system kitchen. Then, the suspension flange (23) on the outer periphery of the upper end of the stove case (20) (with the rubber packing (200) already mounted) is engaged with the outer peripheral portion of the mounting opening (12) from above. next,
Attach the top plate (4) to the gas burner (31) (31) (31) in the stove case (20).
The top plate (41) is covered with the stove case (20) so that the burner insertion holes (46), (46), (46) of 1) are fitted. Then, the top plate (4
Of the outer peripheral flange (42) of (1), the portion facing the gas burner (31) in the horizontal direction of the stove (the outer peripheral standing wall (1) displaced from the first corner portion (95) toward the second corner portion (96) ( Of the lateral side portion (432) of 43), the distance to the gas burner (31) is narrower than that of the first corner portion (95))
The upper plate (74) of the heat transfer member (A) that constitutes the temperature detection device (7)
Abut. At this time, as described above, the heat transfer member (A)
Since the tongue pieces (80) (80) bent from both ends of the upper plate (74) have elasticity to some extent, the upper plate is made
(74) is elastically pressed and closely adheres to the outer peripheral flange (42) of the top plate (41), whereby heat of the top plate (41) can be efficiently absorbed by the upper plate (74). Become.

As a result, the drop-in stove is attached to the mounting opening (12) of the countertop (11). In this state, as shown in FIG. 8, the outer peripheral standing wall of the top plate (41) is raised.
(43) first corner (95) and corresponding stove case
Wide first corner gap C of the first corner (241) on the (20) side
The bimetal switch (710) is in the position. [Description of Operation] Next, the operation of the drop-in stove according to the above embodiment will be described.

When the operation knob (84) provided on the front surface of the stove case (20) is rotated while being pushed, the safety valve (82) is forcedly opened in association with the pushing of the operation knob (84). Together with this, the gas cock (83) opens and the gas burner (3
Gas supply to 1) begins. Further, the operation of the operation knob (84) activates an ignition device (not shown) to ignite the gas burner (31) and bring it into a combustion state. Then the gas burner
The flame of (31) heats the flame detection sensor (32) to generate an electromotive force, which energizes the solenoid valve unit (86) to hold the safety valve (82) open and the gas burner (31) to open. It is maintained in a burning state.

Now, the pot (92) having an allowable size as shown by the chain double-dashed line in FIG. 6 is placed on the Gotoku (51) and the gas burner (3
When 1) is burnt, the combustion exhaust from the gas burner (31) is a pan.
After flowing along the pot bottom of (92) to its outer peripheral side, the pot (9
2) and the upper edge of the top plate (41) opening edge (36) (peripheral flange (42)
Is exhausted through between the outer peripheral standing wall (43) and the boundary.
In this case, since the space (S ₁ ) between the pan (92) having an allowable size and the outer circumference of the pan is relatively large, the combustion exhaust gas is discharged from the top plate.
It flows from the outer peripheral standing wall (43) and the outer peripheral flange (42) of (41) to the pan side away from the pan. Therefore, in such a case, the amount of combustion exhaust gas contacting the outer peripheral upstanding wall (43) and the outer peripheral flange (42) is small, and therefore the outer peripheral flange (42) is not overheated.

Next, when heating a large pot (91) as shown by the alternate long and short dash line in FIG. 6, the upper edge rim (36) of the top plate (41) and the outer periphery of the pot bottom of the pot (91) are heated. Interval (S ₂ ) becomes smaller. Therefore, the combustion exhaust flowing along the outer peripheral side along the bottom of the pan (91) easily comes into contact with the outer peripheral standing wall (43) of the top plate (41) and the proximal end of the outer peripheral flange (42). Compared to the case of heating a pot (92) of appropriate size, the outer peripheral standing wall above
The temperature of (43) and the outer peripheral flange (42) becomes high. Then, the heat of the outer peripheral standing wall (43) is transferred to the hanging plate (75) of the heat transfer member (A) through the air layer in the vicinity thereof and is collected by the hanging plate (75). Further, the heat of the outer peripheral flange (42) is collected by the upper plate (74) of the heat transfer member (A) which comes in contact with the outer peripheral flange (42), and these heat is drooped.
It is transmitted to the horizontal plate (77) continuous to the lower edge of the tip of (75), and the temperature of the horizontal plate (77) is detected by the temperature detector (71). And
When the temperature detected by the temperature detector (71) reaches a set temperature (155 ° C. in this embodiment), the bimetal switch (710) is turned off, and the flame detection sensor (32)
Electromotive force is no longer applied to the solenoid valve unit (86). As a result, the solenoid valve unit (86) is turned off, the safety valve (82) is closed, and the gas supply to the gas burner (31) is cut off. As a result, the gas burner (31) is maintained in a fire extinguishing state. Therefore, the frame body in the stove case (20)
This prevents the rubber packing (200) interposed between the hanging flange (23) of the (21) and the upper surface of the countertop (11) and the wall surface of the kitchen from being thermally damaged. [Others] Each part of the above embodiment can be modified as follows. A. In the above embodiment, the tongue pieces (80) (80) are attached to the longitudinal ends of the upper plate (74) of the heat transfer member (A) that constitutes the temperature detection device (7) and the hanging plate (75) following this. ) Or tongue piece (81) is provided, but as shown in FIG. 7, instead of the tongue pieces (80) (80) tongue piece (81), the frame body (21) of the stove case (20) is formed. Extrusion protrusions (63) (64) are formed on the inner peripheral wall and the suspension flange (23), and the extrusion protrusions (63)
It is also possible to secure a gap for heat insulation between the temperature detecting device (7) and the stove case (20) by (64). B. Upper plate of heat transfer member (A) that constitutes the temperature detection device (7)
A heat-resistant rubber plate is adhered to the lower surface of (74) or the surface of the hanging plate (75) subsequent to the frame body (21) side, and the heat-resistant rubber plate is attached to the tongue piece (80).
(80) (81) can also be applied instead. In such a case, the heat-resistant rubber plate can ensure heat insulation between the temperature detecting device (7) and the stove case (20), and the elasticity of the heat-resistant rubber plate allows the upper plate of the temperature detecting device (7) ( 74) is elastically pressed against the outer peripheral flange (42) of the top plate (41) to bring them into close contact. C. A heat-resistant heat-resistant rubber plate is adhered to the surface of the fitting legs (72) (73) (93) on the side of the frame (21), whereby the fitting legs (72) (73) (9)
It is also possible to reduce the amount of heat transfer from 3) to the frame body (21) side. D. In the above embodiment, the outer peripheral flange (42) of the top plate (41)
The upper plate (74) of the heat transfer member (A) is located in a portion of the stove that extends in the front and rear direction (longitudinal direction of the side portion (432) of the outer peripheral standing wall (43)).
As shown by the imaginary line in FIG. 3, a part of the hanging plate (75) of the heat transfer member (A) is slantingly projected inward of the stove case (20) to make the hanging plate (75) contact. ) To the outer wall of the top plate (41) (4
You may contact with 3). In this case, the heat collection efficiency by the contact portion of the hanging plate (75) with the outer peripheral standing wall (43) is improved. E. It is also possible to adopt a structure in which the upper plate (74) of the heat transfer member (A) is brought closer to the outer peripheral flange (42) of the top plate (41) with a slight gap. In this case, the outer peripheral flange
The heat from the (42) is transferred to the upper plate (74) through the air layer. In this case, the hanging plate (75) is also the outer peripheral standing wall of the top plate (41).
It is advisable to bring them close to (73) so as to have a predetermined heat collecting function. F. In the above embodiment, the tongue pieces (80) (80) (81) are provided on the upper plate (74) and the hanging plate (75) of the heat transfer member (A). A spring such as a coil spring may be provided between the (74) and the hanging flange (23) of the stove case (20), and the heat transfer member (A) may be brought into contact with the stove case (20) via the spring. Is. In this case, a spring attached to the upper plate (74) elastically presses the upper plate (74) against the back surface of the outer peripheral flange (42) of the top plate (41). G. Incidentally, instead of the tongue pieces (80) (80) provided on the upper plate (74) of the heat transfer member (A) as the biasing means, the tongue pieces (80) (80) are placed at the same place as the installation location. It is also possible to provide a series of leaf springs that are bent in a "V" shape. That is, the attachment piece at one end of the leaf spring bent in a "V" shape is attached to the lower surface of the upper plate (74) by spot welding, for example, and the tip of the leg portion at the other end is attached to the suspension flange (23 The upper plate (74) is brought into contact with the back surface of the outer peripheral flange (42) of the top plate (41) while being secured by the elasticity of the leaf spring to secure a space for heat insulation. H. As an elevating guide device, a longitudinally extending long groove formed in one of the side portions (the front wall (210) and the lateral wall (211)) of the stove case (20) or the temperature detecting device (7) and the other one of The elevating guide device can also be configured with a headed screw (the diameter of the head is larger than the groove width of the long groove) implanted through the long groove. I. In the above embodiment, the side portion (432) of the outer peripheral standing wall (43) of the top plate (41) and the side portion (4) of the outer peripheral flange (42).
Although the temperature sensor (71) detects the temperature of the part corresponding to (32), the front side (431) of the outer peripheral standing wall (43) located on the front side of the stove and the outer peripheral flange (42) The temperature of the portion corresponding to the front side portion (431) of () may be detected by the temperature detection device (7). J. As a heating source, an electric heater can be used instead of the gas burner (31). K. In the above-mentioned embodiment, the bimetal switch (710) is used as the temperature detector (71), but a thermistor may be adopted instead. L. In the above embodiment, the temperature detector (71) is arranged at the right side corner portion on the front side of the stove case (20) which is the side where the operation knob (84) is arranged. In the case of arranging in a portion, the corner portion as the arranging portion becomes the first corner portion of the invention of claim 1. M. Further, in the above embodiment, the temperature detector (71) is provided only in the first corner portion of the four corner portions, but the temperature detector (71) is provided in the two front corner portions. Is also possible. Further, in the case where the gas burner (31) is also arranged near the rear corner part, the temperature detector (71) may be arranged also in the rear corner part.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a drop-in stove according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of an arrangement portion of a temperature detecting device (7) for a drop-in stove according to an embodiment of the present invention.

FIG. 3 is a perspective view of the temperature detecting device (7).

FIG. 4 is a sectional view of the disposition part of the bimetal switch (710).

FIG. 5 is an explanatory diagram of a blowout safety circuit.

FIG. 6 is an enlarged vertical cross-sectional view of the disposition part of the bimetal switch (710).

FIG. 7 is a cross-sectional view of essential parts of a modified example of the support portion of the temperature detection device (7).

FIG. 8 is a plan view of the disposition part of the bimetal switch (710).

FIG. 9 is an explanatory diagram of a conventional example.

FIG. 10 is an explanatory diagram of an improvement plan.

FIG. 11 is a schematic plan view of the drop-in stove on which the pan (91) is placed.

[Explanation of symbols]

(20) Stove case (45) Bottom wall (40) Recess (41) Top plate (43) Outer standing wall (71) Temperature detector (42) Peripheral flange (A) Heat transfer member

Claims (7)

(57) [Claims] 1. A stove case (20) formed in a rectangular box shape.
A top plate (41) formed with a recess (40) covering the upper opening of the stove case (20) and having a bottom wall (45) slightly smaller than the upper opening, and the recess (40) ), The first corner portion, which is one of the four corner portions of the outer peripheral standing wall (43), and the stove case (20).
A temperature detector (71) provided in a first corner portion gap between the first corner portion, which is one of the four corner portions, and the outer peripheral standing wall (43) and the stove case. The gap between the peripheral wall of (20) and the outer peripheral standing wall (43) and the first corner of the stove case (20) is shifted from the first corner toward the second corner or the third corner adjacent thereto. The first corner portion gap is set to be larger than the gap, and the side edge of the outer peripheral standing wall (43) is deviated from the first corner portion toward the second corner portion or the third corner portion adjacent thereto. On the part side, the heating source located inside the recess (40) and the outer peripheral standing wall
There is a narrow portion whose interval with (43) is set smaller than the interval in the first corner portion, and when the temperature detected by the temperature detector (71) exceeds a set temperature, the heating source is turned on. A stove to be stopped, which guides heat from the outer peripheral standing wall (43) corresponding to the narrow portion or the outer peripheral flange (42) at the upper end thereof to the heat sensitive portion of the temperature detector (71) (A ) Equipped stove. 2. The heat transfer member (A) is the outer peripheral standing wall.
The plate portion (43) and the plate portion extending along the side edge portion deviated from the first corner portion of the stove case (20) toward the second corner portion or the third corner portion adjacent thereto. Stove. 3. The stove according to claim 2, wherein the plate portion is in contact with the outer peripheral standing wall (43) or the outer peripheral flange (42). 4. The stove according to claim 1, wherein the heat transfer member (A) is attached to the stove case (20) via a heat insulating spacer. 5. The heat transfer member (A) is the heat transfer member.
The stove according to claim 3, wherein the stove is attached via an elastic spacer for pressing the plate portion of (A) against the top plate (41). 6. The stove according to claim 4, wherein the spacer is composed of a plurality of tongue pieces bent from the heat transfer member (A). 7. The heat transfer member (A) is further provided with a fitting leg that is fitted into a fitting hole formed in a wall of the stove case (20). The stove on the crab.