JP2920608B2 - Drop-in 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 drop-in stove that is dropped into a mounting opening formed in a countertop such as a cooking table or a sink and assembled.

[0002]

2. Description of the Related Art There is a conventional drop-in stove disclosed in Japanese Utility Model Laid-Open No. 57-89108. As shown in FIG. 1, a rectangular box-shaped main body case (2) containing a heat source such as a gas burner is provided.
And an upper surface cover (1) for covering the upper end opening.

The size of the body of the main body case (2) is determined by a mounting opening (30B) formed in the countertop.
It is adjusted to. Also, at the upper end of the body case (2),
A flange (21) serving as a support portion supported by a peripheral portion of the mounting opening (30B) projects. In this case, when the main body case (2) is inserted into the mounting opening (30B), it is mounted on the countertop while being supported by the flange (21).

[0004] A positioning block (B) is screwed to the upper part of each side wall of the main body case (2).
This positioning block (B) is used when mounting on a countertop having a mounting opening (30A) larger than the mounting opening (30B), and the height of the positioning block (B) is The distance between the side wall of the main body case (2) and the inner peripheral wall of the mounting opening (30A) is adjusted. Therefore,
When this positioning block (B) is mounted on a countertop having the mounting opening (30A),
Since the positioning blocks (B) and (B) are in a state of facing and approaching the inner peripheral wall of the mounting opening (30A), the drop-in stove can be positioned by the positioning blocks (B) and (B).

[0005] Therefore, in this conventional device, positioning can be performed with respect to two types of mounting openings having different sizes. However, this conventional apparatus has a problem that the positioning block (B) must be prepared separately from the main body case (2). Further, since the positioning block (B) is separate from the main body case (2), there is a problem that the positioning block (B) is easily lost in the above-mentioned mounting work. [Invention of Claim 1]

[0006]

[Technical Problem] The present invention has been made in view of the above-mentioned point, and has been made in consideration of the following problem. The main body case (2) is dropped into a rectangular mounting opening provided on the countertop, and a supporting portion extending outward is provided at a peripheral portion of the mounting opening. In the drop-in stove that is supported by the stove, the drop-in stove can be positioned with respect to various mounting openings having different sizes without preparing a separate component from the drop-in stove. That is the subject.

[0007]

[Technical Means] The technical means of the present invention taken to solve the above-mentioned problem is that "a metal plate positioning member is provided at least along the upper part of the right and left and rear side walls of the body of the main body case (2). Nail pieces (7) and (7) are provided, and each of the nail pieces (7) is set to a thickness capable of forcibly plastically deforming the base end thereof by a tool. The inclination angle with respect to the side wall of the main body case (2) can be adjusted within a range from a posture along the side wall to an upright posture. "

[0008]

The above technical means of the present invention operates as follows. Metal plate claw pieces provided on the side wall of the body case (2)
(7) (7), when not plastic deformation, the main body case
(2) In the posture along the side wall. At this time, the body size of the main body case (2) is adjusted to the smallest mounting opening. Therefore, when the drop-in stove is mounted in the minimum size mounting opening as it is, the drop-in stove is positioned by the body of the main body case (2). When the claw pieces (7) and (7) are forcibly plastically deformed by a tool, the inclination angle with respect to the side wall of the main body case (2) can be arbitrarily changed between an inclined position and an upright position with respect to the side wall. Can be set. Therefore, when mounting in the mounting opening having a large size, the tip of the claw (7) of the main body case (2) dropped into the mounting opening faces the periphery of the mounting opening by adjusting the inclination angle. Keep close. Since the claw piece (7) is provided at a position along at least the right, left, and rear upper portions of the body of the main body case (2) having a rectangular box shape, The main body case (2) is positioned forward, backward, left and right.

Therefore, in this drop-in stove, the peripheral edge is formed at the tip of the drop-in stove from the mounting opening having a size substantially coinciding with the trunk of the main body case (2) in a state in which the claw pieces (7) are in the upright posture. The positioning can be performed with respect to the mounting opening having an arbitrary size within a range up to the mounting opening having a substantially matching size.

[0010]

According to the present invention having the above configuration, the following specific effects are obtained. This drop-in cooker has positioning claw pieces
(7) Since (7) is provided, there is no need to separately prepare a component for the positioning. Also, there is no fear of losing the parts during the mounting operation.

Further, in the above-described conventional device, a plurality of types of positioning blocks having different heights must be prepared in order to correspond to three or more types of mounting openings having different sizes. By adjusting the inclination angle of the claw pieces (7) and (7) with respect to the side wall of the main body case (2), the distance from the side wall to the tips of the claw pieces (7) and (7) can be adjusted arbitrarily. Only these claw pieces (7) can be positioned with respect to various mounting openings having different sizes.

Further, the adjustment of the inclination angle of the claw piece (7) is simple by plastically deforming it with an ordinary tool such as pliers. [Invention of Claim 2] The invention of Claim 2 solves the same problems as described above, and the technical means therefor are as follows:
`` Positioning claw pieces (7) made of a plurality of metal plates extending along the side walls and having different lengths, at least along the upper portions of the right, left, and rear side walls of the body of the main body case (2).
(7) are juxtaposed, and each claw piece (7) has a thickness that can be brought into an upright posture with respect to the side wall of the main body case (2) by forcibly plastically deforming the base end thereof by a tool. The length of each of the claw pieces (7) and (7) on the respective side walls is set to be equal to any one of the peripheral edges of the plurality of mounting openings having different sizes and the main body case (2).
Substantially equal to the distance from the side wall. "

In this case, at least the left and right and rear side walls of the main body case (2) are fitted to the upper portions thereof respectively.
A plurality of metal plate claws (7, 7) extending along and having different lengths are provided. Then, when installing the drop-in stove, one nail piece (7) selected from the nail pieces (7) and (7) according to the size of the mounting opening,
By plastically deforming, the body case (2) is brought to an upright posture with respect to the side wall. The length of each of the claw pieces (7) (7) on each of the side walls is substantially equal to the distance between any one of the plurality of mounting openings having different sizes and the side wall of the main body case (2). Therefore, when the main body case (2) is dropped into the mounting opening, the tip of the claw (7) in the upright posture substantially coincides with the peripheral edge of the corresponding mounting opening. Thus, the drop-in stove is positioned.

According to this aspect, in addition to the effect of the first aspect, a specific nail piece selected from a plurality of nail pieces (7) (7) is provided.
Since (7) is merely placed in an upright posture, fine adjustment such as adjusting the inclination angle of the claw (7) is not required. Therefore,
Skill is not required for the operation for plastically deforming the nail piece (7) in accordance with the mounting opening. [Invention of claim 3] The invention of claim 3 is the invention according to claim 1 or 2, wherein the top cover (1) has three sides substantially at the upper end of the outer surface of the body side wall of the main body case (2). A rectangular frame (1a) made of a metal plate having a matching rectangular opening and having an outer peripheral area as the support portion, and a closing plate (1b) formed separately from the frame and fitted into the rectangular opening. Consisting of
The hanging plate (13) is extended from each of the three sides of the periphery of the rectangular opening integrally with the top cover (1), and the hanging pieces (7) are provided on each hanging plate (13) ''. is there.

The hanging plates (13) extend from three sides of the rectangular opening of the rectangular frame (1a) made of a metal plate, and each hanging plate (1)
Since the claw piece (7) is provided on 3), the opening portion corresponding to the rectangular opening and having a protruding plate protruding inward from three sides during punching for forming a mounting opening. Is formed, and then the protruding plate is bent downward by bending, so that the hanging plate (13) is formed, and a nail piece (7) can be formed on the protruding plate during the punching process. Therefore, nail pieces
There is no need to separately prepare parts for (7), and it can be manufactured at low cost.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 2 to 5, an upper end opening portion of a rectangular box-shaped main body case (2) accommodating a heat radiation type heater (5) for heating and cooking is connected thereto. The main body case (2) is covered with a top cover (1) composed of a rectangular frame (1a) to be inserted and a heat-resistant glass (11) fitted into the rectangular opening (100). The outer peripheral portion of the frame (1a) is supported by the peripheral edge of the mounting opening (30) in a state of being dropped into the mounting opening (30) of T).

[Configuration of Each Part] The frame (1a) is
It is a press-formed product made of a thin metal plate in which a rectangular opening (100) is formed deviated rearward. The front area of the rectangular opening (100) is set wider in the front-rear direction than the rear area, and the front area becomes an operation panel unit (10) described later. A step (12) having a constant width and recessed downward is formed at the periphery of the rectangular opening (100) of the frame (1a).
A heat-resistant glass (11) is fitted to protect (5) and place a container to be heated such as a pan. A support piece (15) that bends and hangs downward is formed on the entire outer peripheral edge of the frame (1a), and a packing (G) is attached to a lower end of the support piece (15). The outer peripheral area of the frame (1a) serves as the support according to the above-described first aspect.

The size of the rectangular opening (100) is substantially the same as the size of the upper end opening portion of the heater accommodating portion of the main body case (2). )(13)
Is drooping. In the press forming step of the frame (1a), when the rectangular opening (100) having the above configuration is punched, as shown in FIG. Is a flat trapezoidal protruding plate (1
30) and (130) are formed, and an incision (131) is formed in the middle of the leading edge of each protruding plate (130) in an L-shape. Then, by the bending after the punching, the protruding plates (130) and (130) are bent downward at the base ends thereof (in a state indicated by a two-dot chain line in the figure), and the periphery of the rectangular opening (100) is formed. A drooping plate (13) (13) hanging from the notch is formed,
The area surrounded by (131) is the nail piece (7).

A patch plate (6) as shown in FIG. 7 is fixed to the lower surface of the operation panel (10) by spot welding. A claw piece (7) similar to the above is formed on the front plate portion (61) hanging from the front side of the backing plate (6) by punching. The thickness of the abutment plate (6) and the hanging plates (13) and (13) is such that the base end of the claw pieces (7) and (7) is plastically forcibly fixed with a normal tool such as pliers or pliers. The thickness (for example, 0.6 mm) that can be deformed is set.
(2) is bent to an inclined position with respect to the side wall. By adjusting the inclination angle, the amount of protrusion of the claw piece (7) from the side wall can be adjusted. In addition, the contact plate (6) and the hanging plate (13)
The thickness of (13) is desirably about 0.5 to 1.5 mm. Further, by using a relatively hard material such as a stainless steel plate, even if an external force acts after the plastic deformation of the claw (7), the deformed state is hardly changed.

On the other hand, the main body case (2) is formed by bending a metal flat plate into a rectangular box shape opened upward, and the upper end opening of the main body case (2) is formed by the rectangular opening (1).
00) and the front side of the abutment plate (6). The hanging plate is attached to the outer surface of the upper end of both side walls and rear wall of the main body case (2).
(13) The front plate (61) is screwed to the outer surface of the upper end of the front wall. Specifically, screws inserted into the through holes (51) of the hanging plates (13) (13) and the front plate (61) are respectively inserted into both side walls and the rear wall of the main body case (2). It is screwed into the screw hole (52). With these configurations, the main body case (2)
Are fixed to the frame (1a), and the positioning claw pieces (7) (7) are positioned along the upper parts of the four side walls of the body of the body case (2).
Is formed.

As shown in FIG. 2, the operation panel (10) is energized to an operation knob (K ₁ ) of a thermal power control device (K) also serving as a power switch, and to a heater (5). And a display light (P) for indicating that the heat-resistant glass (11) is in a heating state at a predetermined temperature or higher. The heater (5) has a known configuration, and its output is increased or decreased by rotating the operation knob (K ₁ ) of the thermal power control device (K). I have.

[Regarding actual mounting] The drop-in stove having the above-mentioned configuration is inserted into the mounting opening (3) of the countertop (T).
The actual mounting at 0) will be described below. First, the hanging pieces (13) and (13) and the pawl pieces (7) and (7) of the backing plate (6) are forcibly pressed with tools such as pliers according to the width and depth dimensions of the mounting opening (30). Plastically deform the base end,
Adjust the angle of inclination of the body case (2) with respect to the side wall. As a result, the protrusion amount from the side wall to the tip of each claw piece (7) is set to a predetermined value, and when the main body case (2) is dropped into the mounting opening (30), each claw piece (7) And the peripheral edge of the mounting opening (30) is close to each other. As a result, the horizontal movement of the main body case (2) is suppressed within the allowable range, and the main body case (2) is positioned (FIGS. 4 and 5).

After the positioning, the main body case (2) is
It is fixed to the countertop (T) using a fixing device (4) as shown in FIG. As shown in the figure, the fixing device (4) is formed by bending a channel-shaped member into a substantially U-shape, and is provided at a horizontal portion (43) connecting the upright portions (42) and (42) at both ends. Are formed at predetermined intervals with through holes (44) (44). By screwing the fixing screws (N) (N) inserted into these through holes (44) (44) into the screw holes (53) provided in the bottom wall of the main body case (2), the upright portions (42) ( 42) and the supporting piece (1
By 5), the periphery of the mounting opening (30) is sandwiched, and the main body case (2) is fixed to the countertop (T).

In this case, by adjusting the inclination angle of the claw pieces (7) with respect to the side wall of the main body case (2),
The protruding amount of the claw pieces (7) from the side wall can be adjusted in a range from a posture along the side wall to an upright posture. Therefore, in this drop-in stove,
(13) From the mounting opening (30) having a size substantially matching the (13) and the front plate portion (61), a size whose peripheral edge substantially matches the tip of the claw pieces (7) (7) in the upright posture. The mounting opening (30) of any size can be positioned up to the mounting opening (30).

Specifically, the size of the main body case (2) when the nail pieces (7) and (7) are not bent is adjusted to the minimum mounting opening (30C), and the nail pieces (7) and (7) ) When the front and rear left and right nail pieces (7) and (7) are aligned with the largest mounting opening (30D). The pieces (7) and (7) are set at a predetermined (eg, about 30 to 60 degrees) inclination angle with respect to the side wall of the main body case (2).

The rectangular frame (1a) made of a metal plate is provided with hanging plates (13) hanging from each of three sides of the rectangular opening, and each hanging plate (13) has a hook. Since the piece (7) is formed, the nail piece (7) can be formed simultaneously with the molding of the frame (1a) by punching and bending as described above, and the nail piece (7) can be formed. There is no need to separately prepare materials and the like. or,
Since the hanging plate (13) formed as described above is screwed to the outer surface of the upper end of the side wall of the main body case (2), the configuration for assembling the main body case (2) to the frame (1a) is simple. It is. The hanging plates (13) and (13) and the front plate portion (61) are provided with convex portions (54) and (54) protruding outward, so that the minimum mounting opening (3
When the main body case (2) is dropped into the main body case (0C), the projections (54) and (54) come into contact with the inner peripheral surface of the mounting opening (30C). Thereby, the contact area between the hanging plates (13), (13), the front plate portion (61) and the inner peripheral surface is reduced. Therefore, heat conduction from the main body case (2) to the countertop (T) is suppressed, and overheating of the countertop (T) is prevented. Incidentally, the height of the projections (54) (54) is the same as the height of the screw hole (5).
2) Match the height of the screw head screwed to (52).

[Regarding Modification] In the above embodiment, the nail piece (7) is attached to the hanging piece (13) of the frame (1a).
However, this is directly attached to the side wall of the body case (2).
(7) may be provided. In the above embodiment,
Although the claw piece (7) is configured to be bent in the horizontal direction, the bending direction of the claw piece (7) may be set in the vertical direction. Further, in the above embodiment, the claw pieces (7) are provided on the four side walls of the main body case (2), but may be provided on, for example, the left, right, and rear three side walls.

[0028] In the above embodiment, by adjusting the inclination angle of the claw piece (7) provided on each hanging plate (13), the tip is close to the periphery of the mounting opening (30).
As shown in FIG. 9, a pair of pawls (7) (7) extending along the side wall of the main body case (2) and having different lengths are provided on the hanging plate (13). The proximity state may be achieved by bending the claw piece to an upright state.

In the drawing shown in FIG.
(7) is formed by a combination of punching and bending as in the above embodiment. The thickness of each claw piece (7) is set to such a thickness that the base end thereof can be forcibly plastically deformed by a tool so as to be in an upright posture with respect to the side wall of the main body case (2). Furthermore, this can be applied to three mounting openings (30C) (30D) (30E) having different sizes, and the size of the main body case (2) is the minimum as in the above embodiment. Fits the size mounting opening (30C).
Also, of the pair of claw pieces (7) (7), the longer second claw piece (72)
The length of the first claw piece (71) is determined by the distance between the peripheral wall of the maximum size mounting opening (30D) and the side wall of the main body case (2). The distance between the peripheral wall of (30E) and the side wall of the main body case (2) substantially coincides with each other. Specifically, the length of the nail pieces on the left and right with respect to the main body case (2) is
The value of the difference between the width of each mounting opening and the width of the body case (2) is about half, and the length of the claw pieces before and after the body case (2) is the same as the depth dimension of each mounting opening. It is set to a value that is about half the difference from that of the body case (2).

Therefore, when installing the drop-in stove in the smallest mounting opening (30C), leave the claw pieces as they are, and when mounting the drop-in stove in the intermediate size mounting opening (30E), When only one claw piece (71) is in the upright posture described above, and the second claw piece (72) is to be mounted in the maximum size mounting opening (30D),
The drop-in stove is positioned by setting only the above-described upright posture.

In this embodiment, three different sizes of mounting openings (30C), (30D), and (30E) can be used. When three or more types of claw pieces (7) and (7) having different lengths are provided in each of (6), the present invention can be applied to a plurality of sizes of mounting openings according to the quantity. 9 may be used to adjust the inclination angle as in the above embodiment. In this case, the same operation as in the above embodiment is achieved. In addition, when the protrusion amount of the claw piece is set to be extremely small, the claw piece usually tends to remain in an elastic deformation state without being plastically deformed because the inclination angle is small. In this case, when the smaller first claw piece (71) is used, its inclination angle is increased, and the plastic deformation state is ensured. Conversely, if the larger second claw piece (72) is used, it is possible to cope with the case where the protrusion amount is large.

[0032] In the above embodiment, the outer peripheral area of the frame body (1a) is a supporting portion supported by the peripheral edge of the mounting opening.
This supporting portion may be a flange (21) projecting outward from the open upper end of the main body case (2) as in the above-described conventional example. In this case, the claw pieces (7) and (7) may be formed directly on the body side wall of the main body case (2). . The heat source may be other than the heater (5). A burner or a magnetic flux generating unit for electromagnetic heating may be used. When a burner is used, a configuration in which the closing plate (1b) described in claim 3 is used as a juice receiving tray can be adopted. Further, in the case of a burner, gotoku is placed on the top cover (1).

[0033] On the lower surface of the bottom wall of the step (12) of the frame (1a), graduations or the like are formed by marking or the like to indicate the amount of protrusion of the claw (7) from the side wall of the main body case (2). With this arrangement, at the time of the plastic deformation operation of the claw piece (7), the inclination angle of the claw piece (7) can be adjusted according to the scale or the like. Therefore, the amount of protrusion can be accurately adjusted by adjusting to the gap between the side wall of the main body case (2) and the peripheral edge of the mounting opening (30).

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a drop-in stove in a conventional example.

FIG. 2 is a plan view of a drop-in stove according to an embodiment of the present invention.

FIG. 3 is a side view of this.

FIG. 4 is a sectional view taken along the line AA.

FIG. 5 is a sectional view taken along line BB.

FIG. 6 is a plan view at the end of punching of the frame (1a).

FIG. 7 is a plan view of the backing plate (6).

FIG. 8 is a perspective view of a fixture (4).

FIG. 9 is an explanatory view of a modified example.

[Explanation of symbols]

 (2) ・ ・ ・ Main body case (1) ・ ・ ・ Top cover (7) ・ ・ ・ Claw piece (1a) ・ ・ ・ Frame (1b) ・ ・ ・ Closing plate (13) ・ ・ ・ Drop plate

Claims (3)

(57) [Claims] 1. A rectangular box-shaped main body case containing a heat source.
(2), and an upper surface cover (1) for covering the upper end opening of the main body case (2), and the main body case (2) is dropped into a rectangular mounting opening provided on the countertop. Rarely, in a drop-in stove in which the supporting portion projecting outward is supported by the peripheral portion of the mounting opening, a metal is provided at least along the upper part of the left and right and rear side walls of the body of the main body case (2). Plate positioning claw pieces (7)
(7) is provided, and each claw piece (7) is set to a thickness capable of forcibly plastically deforming the base end portion thereof by a tool.
(7) A drop-in stove in which an inclination angle with respect to the side wall of the main body case (2) can be adjusted within a range from a posture along the side wall to an upright posture. 2. A rectangular box-shaped main body case containing a heat source.
(2), and an upper surface cover (1) for covering the upper end opening of the main body case (2), and the main body case (2) is dropped into a rectangular mounting opening provided on the countertop. Rarely, in a drop-in stove in which the supporting portion projecting outward is supported by the peripheral portion of the mounting opening, the drop-in stove is provided at a position along at least the right, left, and rear upper portions of the body of the main body case (2). , A plurality of metal plate positioning claw pieces (7) (7) extending along the side wall and having different lengths
Each claw piece (7) is set to a thickness that allows the base end thereof to be plastically deformed by a tool to be in an upright posture with respect to the side wall of the main body case (2), The length of each of the claw pieces (7) and (7) of each of the side walls is substantially equal to the distance between any one of the plurality of mounting openings having different sizes and the side wall of the main body case (2). Drop-in stove. 3. The top cover (1) has three sides of a main body case.
(2) A rectangular frame made of a metal plate having a rectangular opening substantially coincident with the upper end of the outer surface of the trunk side wall and having the outer peripheral area as the supporting portion.
(1a) and a closing plate (1b) formed separately from this and fitted into the rectangular opening, and a hanging plate (13) is formed on the upper surface of the hanging plate (13) from each of the three sides of the periphery of the rectangular opening. cover
The drop-in cooker according to claim 1 or 2, wherein the hook (7) is provided on each of the hanging plates (13) while being extended and hanging integrally with (1).