JP2004150659A - Grate for heat cooker, and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grate for a heat cooker, and a method for manufacturing that, capable of restricting peeling of a coating layer by heat when subject matter is heated. <P>SOLUTION: This grate for a heat cooker is provided with a frame body, and a plurality of claw parts 2 installed on the frame body to support the subject matter. A part of an upper surface 5 of the claw part 2 as a support surface for the subject matter is composed of a curvature surface. The part of the curvature surface as the support surface for the subject matter is formed by providing a recessed part 4 in a side surface of the claw part 2, and plastically deforming an end part of the claw part 2. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a virtue structure used in a heating cooker such as a gas stove and a method for producing the same.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, on a top plate surface of a heating cooker such as a gas stove, a gotoku having a claw portion for holding a cooking pot, a frying pan, or the like on a burner or a heat source is provided.
[0003]
FIG. 7 shows an example of this Gotoku structure. As shown in FIG. 7, the virtues 1 have an annular frame 3 and a plurality of claws 2 protruding at intervals along the upper circumferential direction of the frame 3. The upper surface of the claw portion 2 is often a flat surface in order to stably support an object to be heated such as a cooking pot.
[0004]
Gotoku 1 having the above structure is placed on the top plate surface of a gas stove, for example. Then, the object to be heated is placed on Gotoku 1, and the object to be heated is cooked by heating the object to be heated by the burner of the gas stove.
[0005]
Various modifications have been made to the structure of Gotoku 1 in the past. For example, in Japanese Patent Application Laid-Open No. 9-140557, in order to stably put a vessel such as a pot on Gotoku, It is described that each receiving leg of Gotoku is provided with a locking portion that locks to a locked portion of a vessel such as a pan to restrict the tilting of the vessel.
[0006]
Also, in order to provide a stove that can be stably placed irrespective of the shape of the pan bottom, for example, in Japanese Patent Application Laid-Open No. 9-229380, a plurality of claws having a pan pot mounting surface inclined downward toward the burner center are provided. Are arranged radially around the center, and a plurality of claws are provided with protrusions on the pot-mounting surface at the tips of the pots.
[0007]
[Patent Document 1]
JP-A-9-140557
[Patent Document 2]
JP-A-9-229380
[Problems to be solved by the invention]
In the conventional Gotoku including the Gotoku described in each of the above-mentioned documents, usually, in order to stably support an object to be heated such as a pot, the upper surface 5 of the claw portion 2 of the Gotoku is flat or heated. And a relatively large contact area between the claw portion 2 and the object to be heated.
[0010]
A coating layer is often formed on the surface of the object to be heated, such as a virtue or a pot, by enamel coating or the like. When the object to be heated is heated at the contact portion with the virtues, the heat is not sufficiently radiated, and the temperature at the contact portion between the heated object and the vitoku rises. For this reason, there has been a problem that the coating layer on the bottom surface of the object to be heated or the surface of the surface is peeled off.
[0011]
Therefore, an object of the present invention is to provide a method for a heating cooker and a method for manufacturing the same, which can suppress the coating layer from peeling off due to heat generated when the object to be heated is heated.
[0012]
[Means for Solving the Problems]
According to an embodiment of the present invention, there is provided a cooking device for a heating cooker, comprising: a frame; and a plurality of claws attached to the frame to support the object to be heated. . Here, the term “configured with a curved surface portion” is not limited as long as it is substantially configured with a curved surface portion. If the same effect can be obtained, it should be interpreted as belonging to the technical scope of the present invention. In addition, the "support surface" does not support the object to be heated only in special situations such as when the object to be heated is inclined, but supports the object to be heated when the object to be heated is normally placed on the claw portion. It is the side to do.
[0013]
As described above, by configuring the support surface of the object to be heated in the claw portion with the curved surface portion, the contact area between the object to be heated and the claw portion can be reduced. This makes it possible to improve the heat radiation characteristics at the contact portion between the object to be heated and the claw portion, and to prevent the coating layer from being peeled off by the heat when the object to be heated is heated.
[0014]
The claw portion preferably has a concave portion on a side surface located immediately below the support surface. By providing the concave portion directly below the support surface in this manner, the surface area of the claw portion at the portion of the heated object located near the support surface can be increased. Thereby, the heat radiation characteristics of the claw portion near the support surface can be further improved, and peeling of the coating layer can be effectively suppressed.
[0015]
The method for producing a virtue for a cooking device according to the present invention includes the following steps. One end of the member that will become the claw of Gotoku is clamped. By pressing a punch into a side surface located near the other end of the member while holding one end side of the member, a concave portion is formed in the side surface, and an end surface of the member located near the concave portion is rounded, and a curved surface portion is formed. Deform to.
[0016]
By pressing a punch into the side surface located near the other end of the member while holding one end of the member serving as the claw portion in this way, a concave portion can be formed on the side surface of the member. At this time, by guiding a part of the member corresponding to the size of the concave portion to the other end of the member, the other end of the member can be deformed. Here, for example, the surface on the other end side of the member is pressed against a mold having an inner surface composed of a curved surface portion, so that the end surface of the member located in the vicinity of the concave portion is rounded to form a curved surface. Can be transformed into parts.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 is a perspective view of Goto 1 in one embodiment of the present invention. FIG. 2 and FIG. 3 are a side view and a rear view of the claw portion 2 in Gotoku 1. FIG.
[0018]
As shown in FIG. 1, the goto for a heating cooker according to the present embodiment includes a frame 3 and a plurality of claw portions 2 attached to the frame 3 to support an object to be heated.
[0019]
The frame 3 is made of, for example, metal, and has an annular shape in the example of FIG. The claws 2 are also typically made of metal. In the example of FIG. 1, six claws 2 are provided at substantially equal intervals, and the lower ends thereof are fixed to the frame 3.
[0020]
As shown in FIG. 2, a concave portion 4 is provided on a side surface of the claw portion 2. The recess 4 extends in the longitudinal direction of the claw 2. The upper surface 5 of the head of the claw 2 serves as a support surface for supporting an object to be heated during the heat treatment.
[0021]
As shown in FIG. 3, in the present embodiment, the upper surface 5 of the head of the claw portion 2 is formed of a curved surface portion. More specifically, the upper surface 5 is formed of a curved surface that curves at a predetermined curvature in the width direction of the claw portion 2, that is, in the left-right direction in FIG.
[0022]
By forming the upper surface 5 which is the support surface of the object to be heated in the claw portion 2 with a curved surface portion as described above, the contact area between the bottom surface 10 of the object to be heated and the claw portion 2 is reduced as shown in FIG. be able to. For example, it can be close to point contact or line contact. Thereby, the heat radiation characteristics at the contact portion between the object to be heated and the claw portion 2 and the vicinity thereof can be improved, and the coating layer on the claw portion 2 and the bottom surface of the object to be heated is peeled off by the heat when the object to be heated is heated. Can be suppressed.
[0023]
As shown in FIG. 2, the recess 4 extends along the upper surface 5 which is a support surface. That is, the recess 4 is formed on the side surface located immediately below the upper surface 5 that is the support surface. Thereby, it is possible to increase the surface area of the claw portion 2 located near the support surface of the object to be heated. Therefore, the heat radiation characteristics of the claw portion 2 in the vicinity of the support surface can be further improved, and peeling of the coating layer can be more effectively suppressed.
[0024]
In the above-described example, the upper surface 5 serving as the support surface is formed of the curved surface of the convex oil such that the ridgeline extends in the longitudinal direction of the claw portion 2. The shape of the support surface can be any other shape as long as the contact area can be reduced so that the bottom surface 10 of the object to be heated and the claw portion 2 can be brought into a contact state close to a point contact or a line contact.
[0025]
For example, a projection extending in the longitudinal direction may be provided on the upper surface 5 of the claw portion 2, and the tip of the projection may be rounded to form a curved surface. In this case, the bottom surface 10 of the object to be heated and the claw portion 2 can be brought into a contact state close to linear contact. Further, a plurality of protrusions may be provided intermittently on the upper surface 5 of the claw portion 2, and the tips of the protrusions may be rounded. In this case, the bottom surface 10 of the object to be heated and the claw portion 2 can be brought into a contact state close to point contact.
[0026]
Next, a method for manufacturing Gotoku 1 in the present embodiment will be described with reference to FIGS.
[0027]
First, a member 2a having the outer shape shown in FIG. 2 and serving as the claw portion 2 is manufactured by a technique such as forging or casting. Then, as shown in FIG. 5, the end of the member 2a on the side opposite to the head (the other end) (the one end) is clamped between the clamps 6a and 6b. In this state, the head side of the member 2a is received in the cavity 9 between the upper and lower molds 8a and 8b. Alternatively, the end face on the head side of the member 2a faces the cavity 9 between the upper and lower molds 8a and 8b. At this time, the inner surface of the cavity 9 located near the head side of the member 2a is formed with a desired curved surface, and the inner surface is separated from the head side end surface of the member 2a, A space is secured between the end face on the head side and the upper and lower molds 8a and 8b.
[0028]
Next, the punches 7a and 7b are moved in directions approaching each other, and as shown in FIG. 6, the punches 7a and 7b are pushed into the side surfaces of the head of the member 2a. Thereby, the recess 4 can be formed on the side surface of the head.
[0029]
At this time, the tip of the head of the member 2a is also deformed, and the tip enters the above-described space, and the space can be filled with the tip as shown in FIG. As a result, a state equivalent to pressing the curved surface portion of the inner surface of the cavity 9 against the distal end portion of the head of the member 2a is obtained, and the distal end portion of the head can be deformed into a curved shape. Thereby, the end surface of the member 2a located near the concave portion 4 can be deformed into a curved surface portion.
[0030]
Through the steps described above, the claw portions 2 shown in FIGS. 2 to 4 are formed. By attaching the claw portion 2 to the frame body 3 by a well-known method, it is possible to manufacture the Gotoku 1 shown in FIG.
[0031]
As described above, the embodiments of the present invention have been described. However, the embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, and includes all modifications within the scope and meaning equivalent to the claims.
[Brief description of the drawings]
FIG. 1 is a perspective view of a virtue in one embodiment of the present invention.
FIG. 2 is a side view of a sword of one embodiment of the present invention.
FIG. 3 is a rear view of the sword of one embodiment of the present invention.
FIG. 4 is an enlarged cross-sectional view showing a state in which an object to be heated is placed on a claw part of a virtue in one embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a first step of a manufacturing process according to one embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a second step of the manufacturing process according to one embodiment of the present invention.
FIG. 7 is a perspective view showing an example of a conventional virtues.
[Explanation of symbols]
1 Gotoku, 2 claw, 2a member, 3 frame, 4 concave, 5 top, 6a, 6b clamp, 7a, 7b punch, 8a upper die, 8b lower die, 9 cavity, 10 bottom.

Claims (3)

A frame,
A plurality of claw portions attached to the frame body and supporting an object to be heated,
A virtue for a cooking device, wherein a support surface of the claw portion for supporting the object to be heated is a curved surface portion. The gode for a heating cooker according to claim 1, wherein the claw portion has a concave portion on a side surface located immediately below the support surface. A step of clamping one end of a member to be a claw part of Gotoku,
By pressing a punch into a side surface located near the other end of the member while holding one end side of the member, a concave portion is formed on the side surface and an end surface of the member located near the concave portion is curved. A step of transforming the
A method for producing Gotoku for a cooking device, comprising:

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