JP7449831B2 - Top plate for stove - Google Patents

Description

The present invention relates to a stove top plate that covers the open upper surface of a stove body, and in which a burner opening is provided in the top plate body to allow the stove burner to be exposed.

With this type of stove top, if the top itself warps upward due to thermal expansion caused by heating, the cooking container placed on the trivet may become unstable, or the weight of the cooking container may cause the cooking to become unstable. There is a risk that a dangerous phenomenon may occur in which the warp direction suddenly reverses to become concave downward.

Therefore, conventionally, a cooking stove top plate is known from Patent Document 1 and Patent Document 2, in which a reinforcing member is attached to the back surface of the top plate body to prevent warping during heating. However, even with this, the force that causes the top plate to curve upwardly due to thermal expansion due to heating may exceed the strength of the reinforcing member, so the top plate body may not curve upwardly. Warping cannot be reliably prevented.

Japanese Patent Application Publication No. 2014-134312 Japanese Patent Application Publication No. 2015-203532

In view of the above points, it is an object of the present invention to provide a stove top plate that can reliably prevent the top plate body from warping upwardly.

In order to solve the above-mentioned problems, the present invention provides a stove top plate that covers the open upper surface of a stove body, in which a burner opening is opened to allow the stove burner to be exposed to the top plate body. A pair of support parts are provided on the back surface of the main body, spaced apart in a predetermined direction, and are longitudinal in the predetermined direction, with at least the middle part in the longitudinal direction floating above the back surface of the top plate main body, and both ends in the longitudinal direction. Reinforcing members fixed to both support parts are provided, and anchor members facing each other with a gap are fixed to the back surface of the top plate body above a predetermined location in the longitudinally intermediate part of the reinforcing member. A fastening means is provided for fastening an anchor member to a predetermined location, and the anchor member is fastened to the predetermined location of the reinforcing material by the fastening means and pulled downward, thereby causing the top plate main body to be warped downward in advance. It is characterized by

According to the present invention, since the top plate body is warped in advance so as to be concave downward, thermal expansion due to heating of the top plate body only increases the degree of downward concave curvature of the top plate body. It is possible to reliably prevent warping in an upwardly convex manner. Therefore, the cooking container placed on the trivet may become unstable due to the top body warping upward, or the warping direction may suddenly become concave downward during cooking due to the weight of the cooking container. Dangerous events such as reversal do not occur.

Further, in the present invention, when the top plate main body is made of metal, it is desirable to weld and fix the anchor member to the top plate main body. According to this, the anchor member is firmly fixed to the top plate main body, and by pulling the anchor member downward, the top plate main body can be reliably warped so as to be concave downward.

When the top plate main body is made of metal, each supporting portion is further provided with a frame member that is longitudinal in a direction orthogonal to the predetermined direction and to which each end of the reinforcing material is fixed, and a frame member that is attached to the top plate main body. It is desirable that the frame member be constructed of a plurality of fixing members welded and fixed at intervals in the longitudinal direction, and that the frame member be screwed to these fixing members. According to this, since the frame material is firmly fixed to the top plate main body, the frame material can suppress warping of the top plate main body that expands and contracts in the longitudinal direction of the frame material.

1 is a perspective view of a gas stove equipped with a stove top plate according to a first embodiment of the present invention. FIG. 2 is a bottom view of the stove top plate of the first embodiment. FIG. 3 is an enlarged cross-sectional view of main parts taken along line III-III in FIG. 2; FIG. 2 is a perspective view of the stove top plate of the first embodiment in an exploded state, as seen diagonally from below. FIG. 6 is a bottom view of a stove top plate according to a second embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view of main parts taken along line VI-VI in FIG. 5; FIG. 7 is a bottom view of a stove top plate according to a third embodiment of the present invention. FIG. 4 is a bottom view of a stove top plate according to a fourth embodiment of the present invention.

The gas stove shown in Fig. 1 is a built-in type, and includes a stove body 1 that is installed by being dropped into a stove opening opened on the countertop of a system kitchen (not shown), and covers the open top surface of the stove body 1. The stove includes a stove top plate 2 placed on the counter top in this manner, a pair of left and right stove burners 3, 3 exposed on the stove top plate 2, and a grill 4 built into the stove body 1. There is. A trivet 5 is placed on the stove top plate 2 so as to surround each stove burner 3.

Referring also to FIG. 2, the stove top plate 2 includes a top plate body 21 having a pair of left and right burner openings 21a, 21a facing the left and right pair of stove burners 3, and a top plate body 21 at the rear of the top plate body 21. It is provided with a rear plate 22 that is connected to the rear plate 22 and has an exhaust port 22a for the grill 4, and an enclosure frame 23 that surrounds the periphery of the top plate main body 21 and the rear plate 22. A cover ring 6 is installed on the top plate main body 21 to cover the gap between each stove burner 3 and the burner opening 21a from above, and an exhaust guard 7 is installed on the rear plate 22 to cover the exhaust port 22a. is placed.

By the way, if the top plate main body 21 warps upward due to thermal expansion due to heating, the cooking container placed on the trivet 5 may become unstable, or the top plate main body 21 may become unstable during cooking due to the weight of the cooking container. There is a risk that a dangerous phenomenon may occur in which the direction of the warp suddenly reverses so that it becomes concave downward. Therefore, in the stove top plate 2 according to the embodiment of the present invention shown in FIGS. 1 to 4, the top plate main body 21 is warped in advance so as to be concave downward. This point will be explained in detail below.

A pair of support parts 24, 24 are provided on the back surface of the top plate main body 21, and are located on the front side and the rear side of the left and right burner openings 21a, 21a. A reinforcing member 25 made of a channel material is provided which is longitudinal in the front-rear direction and has both longitudinal end portions fixed to both supporting portions 24, 24 with a longitudinal intermediate portion floating from the back surface of the top plate main body 21. There is. Note that the reinforcing material 25 is installed in a portion between the left and right burner openings 21a, 21a on the back surface of the top plate main body 21. Further, in this embodiment, the portions of the reinforcing material 25 near both ends in the longitudinal direction are in contact with the back surface of the top plate main body 21, but the reinforcing material 25 is made to float from the back surface of the top board main body 21 over its entire length. It's okay.

In addition, an anchor member 26 is fixed to a portion between the left and right burner openings 21a, 21a on the back surface of the top plate main body 21, facing each other with a gap above a predetermined location in the longitudinally intermediate portion of the reinforcing member 25. has been done. Further, a fastening means 27 for fastening the anchor member 26 to the above-mentioned predetermined location of the reinforcing member 25 is provided. In addition to the support part 24, reinforcing material 25, and anchor member 26, a frame for locking the cover ring 6 and a reinforcing frame are fixed to the back surface of the top plate main body 21. These frames are omitted to simplify the drawing.

Here, the top plate main body 21 is made of metal such as an enameled steel plate or a stainless steel plate. The anchor member 26 is composed of a U-shaped metal fitting having a bottom plate portion 26a and side plate portions 26b on both sides that stand up from the bottom plate portion 26a, and is welded to the top plate main body 21 at a bent flange portion 26c at the upper end of the side plate portion 26b. Fixed. Further, the fastening means 27 includes a screw 271 and a screw hole 272 formed in the bottom plate portion 26a of the anchor member 26. Then, by tightening the screw 271 into the screw hole 272 of the anchor member 26 through the through hole 273 formed at the predetermined location of the reinforcing member 25, the anchor member 26 is fastened to the predetermined location of the reinforcing member 25 and pulled downward. , the top plate main body 21 is pre-warped so as to be concave downward, although it is so small that it cannot be shown in the drawings.

In this way, if the top plate main body 21 is warped in advance so as to be concave downward, the degree of downward concave curvature of the top plate main body 21 will only increase due to thermal expansion due to heating of the top plate main body 21. , it is possible to reliably prevent warping in an upwardly convex manner. Therefore, the top plate body 21 may warp upwardly, making the cooking container placed on the trivet 5 unstable, or the weight of the cooking container may cause the top plate main body 21 to warp downward during cooking. A dangerous phenomenon such as a sudden reversal to become concave does not occur.

Further, in this embodiment, the top plate main body 21 is made of metal as described above, and the anchor member 26 is welded and fixed to the top plate main body 21. According to this, the anchor member 26 is firmly fixed to the top plate main body 21, and by pulling the anchor member 26 downward, the top plate main body 21 can be reliably warped so as to be concave downward.

Each of the supporting parts 24 is a frame member made of a channel material, which is elongated in a direction orthogonal to the direction of separation between the supporting parts 24, 24, that is, in the lateral direction, and to which each end of the reinforcing member 25 in the longitudinal direction is fixed. 241, and a plurality of fixing members 242 fixed to the top plate main body 21 at intervals in the longitudinal direction of the frame member 241, and the frame member 241 is attached to these fixing members 242. Like the anchor member 26, each fixing member 242 is composed of a U-shaped metal fitting having a bottom plate part and side plate parts on both sides that stand up from the bottom plate part, and is attached to the top plate main body 21 at the bent flange part at the upper end of the side plate part. Fixed by welding. Then, the frame member 241 is screwed to each fixing member 242 by tightening the screw 243 through the through hole 243b formed in the frame member 241 into the screw hole 243a formed in the bottom plate portion of each fixing member 242. Then, by tightening the screws 251 through the through holes 251b formed at each longitudinal end of the reinforcing member 25 into the screw holes 251a formed at the longitudinal center of each frame member 241, the reinforcing member 27 is tightened. Each end portion of the frame member 241 is screwed to the center portion of each frame member 241 in the longitudinal direction.

In this way, if the frame material 241 is screwed to the plurality of fixing members 242 welded and fixed to the top plate main body 21 at intervals in the longitudinal direction of the frame material 241, the frame material 241 can be firmly attached to the top plate main body 21. It will be fixed. Therefore, the frame member 241 can suppress warpage of the top plate main body 21 that expands and contracts in the longitudinal direction of the frame member 241.

Next, a cooking stove top plate 2 according to a second embodiment shown in FIGS. 5 and 6 will be described. The basic structure of the stove top plate 2 of the second embodiment is not particularly different from that of the first embodiment, and the same members and parts as those of the first embodiment are denoted by the same symbols as above. ing. The difference between the stove top plate 2 of the second embodiment and the first embodiment is that the top plate main body 21 has a total of three burner openings, two on the left and right on the front side and one on the rear center. 21a is opened, and the reinforcing member 25 is longitudinally elongated in the lateral direction and is installed at the center of the back surface of the top plate main body 21 in the front-rear direction.

Specifically, a pair of support parts 24, 24 made of U-shaped metal fittings welded and fixed to the top plate main body 21 are provided at the center of the back surface of the top plate main body 21 in the front and back direction, spaced apart from each other in the lateral direction. A reinforcing material 25 made of a horizontally elongated channel material is fixed to both supporting parts 24, 24 at both longitudinal ends with screws 251, 251, with its longitudinal middle part floating from the back surface of the top plate main body 21. Furthermore, on the back surface of the top plate main body 21, an anchor member 26 consisting of U-shaped metal fittings facing each other with a gap is welded and fixed above a predetermined location in the longitudinally intermediate portion of the reinforcing member 25. . Then, the anchor member 26 is attached to a predetermined position of the reinforcing member 25 by means of a fastening means 27, which is composed of a screw 271 inserted into a through hole 273 formed at a predetermined position of the reinforcing member 25 and a screw hole 272 formed in the anchor member 26. The top plate main body 21 is pre-warped so as to be concave downward.

In the second embodiment, a pair of support parts 24, 24, a reinforcing material 25, and an anchor member 26 are provided at the central part of the back surface of the top plate main body 21 in the front-rear direction, but in the third embodiment shown in FIG. As in the fourth embodiment shown in FIG. A member 26 may also be provided. Further, in the third embodiment, the direction in which the pair of support parts 24, 24 are separated, that is, the longitudinal direction of the reinforcing material 25 is set to the horizontal direction as in the second embodiment, but this direction is set to the horizontal direction in the fourth embodiment. It may be arranged in an oblique direction with respect to the lateral direction and the front-rear direction.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited thereto. For example, in the above embodiment, the top plate main body 21 is made of metal, but the top plate main body 21 can also be made of glass. In this case, the anchor members 26 and the supporting parts 24 are attached to the top plate. It may be fixed to the back surface of the main body 21 by adhesive. Further, in the above embodiment, the fastening means 27 is composed of a screw 271 inserted into a through hole 273 formed at a predetermined location of the reinforcing member 25 and a threaded hole 272 formed in the anchor member 26. It is also possible to configure the fastening means 27 with a stud bolt implanted in the anchor member 26 so as to be inserted into a through hole formed at a predetermined location of the reinforcement member 25, and a nut that is screwed onto the stud bolt from below the reinforcing member 25. It is.

DESCRIPTION OF SYMBOLS 1... Stove main body, 2... Stove top plate, 21... Top plate main body, 21a... Burner opening, 24... Support part, 241... Frame material, 242... Fixing member, 25... Reinforcing material, 26... Anchor member, 27 …Fascinating means, 3…Convex burner.

Claims (3)

In a stove top plate that covers the open upper surface of the stove body, and has a burner opening that allows the stove burner to be exposed to the top plate body,
A pair of supporting parts are provided on the back surface of the top plate main body and are spaced apart in a predetermined direction, and are longitudinally extending in the predetermined direction, with at least the middle part in the longitudinal direction floating above the back surface of the top plate main body. A reinforcing member is fixed to both supporting parts, and an anchor member is fixed to the back surface of the top plate body and faces with a gap above a predetermined point in the longitudinal middle part of the reinforcing member. fastening means for fastening the anchor member to the predetermined location of the reinforcing material, and by fastening the anchor member to the predetermined location of the reinforcing material by the fastening means and pulling it downward, the top plate main body is made to be concave downward in advance. A stove top plate that is characterized by its ability to warp. 2. The stove top plate according to claim 1, wherein the top plate body is made of metal, and wherein the anchor member is fixed to the top plate body by welding. 3. The stove top plate according to claim 2, wherein each of the supporting parts includes a frame member that is elongated in a direction orthogonal to the predetermined direction and to which each longitudinal end of the reinforcing member is fixed, and the top plate. 1. A stove top plate comprising a plurality of fixing members welded and fixed to a main body at intervals in the longitudinal direction of a frame material, and the frame material is screwed to these fixing members.

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