JP2705562B2 - Gas cooker for cassette gas cylinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas stove for a cassette gas cylinder in which a small-capacity cassette gas cylinder is removably accommodated and gas is supplied from the cassette gas cylinder to a gas burner. The present invention relates to a gas stove for a cassette gas cylinder which is also used for cooking and containing a gas burner having a gas introduction part for introducing a mixed gas of air and gas into a head below the part.

[0002]

2. Description of the Related Art In such a gas stove for a cassette gas cylinder, if the heat of combustion in the gas burner has an unlimited effect on the gas cylinder, the cassette gas cylinder is small in size and simple, and becomes overheated to cause abnormal combustion or explosion. Cause. Therefore, the basic structure is such that the inside of the main body casing is divided into a burner accommodating section for accommodating a gas burner by a partition wall and a cylinder accommodating section for accommodating a cassette gas cylinder, and the cassette gas cylinder is shielded from heat of combustion in the gas burner. . However, recently, there is no such thing as a partition, and there is no thing at all.

On the other hand, since the cassette gas cylinder has a small capacity as described above, if the gas is consumed and the liquefied gas continues to be vaporized, the temperature of the liquefied gas decreases due to latent heat of vaporization, and the vaporizing action is slowed down. Become. For this reason, as the use of the gas stove continues, the gas supply amount from the cassette gas cylinder decreases. Further, even in winter or cold regions, it is difficult to obtain sufficient heat of vaporization, and the gas supply amount tends to be insufficient. Such a problem becomes more remarkable as the calorific value increases.

Therefore, conventionally, the heat of combustion of the gas burner is appropriately transmitted to the cassette gas cylinder to compensate for the temperature, thereby coping with the above-mentioned problem.

For example, Japanese Utility Model Laid-Open Publication No. 56-56506 discloses that one end is located in the burner housing section just below the flame hole of the gas burner, and the other end is housed in the cylinder housing section in the cylinder housing section. A heat conductor positioned so as to be in contact with the cassette gas cylinder is provided, and an upward guide wall is provided on both sides of the heat conduction plate, and a hot air guide that reaches the side of the cassette gas cylinder from the combustion portion of the gas burner through the partition wall is provided. The formed one is disclosed. Thereby, the heat conduction plate receives the combustion heat of the gas burner well at the flame hole of the gas burner, transmits the heat to the cassette gas cylinder, guides the hot air generated by the combustion heat to the cassette gas cylinder side, and sets the ambient temperature around the cassette gas cylinder. Therefore, the temperature of the cassette gas cylinder can be compensated.

In Japanese Utility Model Laid-Open No. 57-128000, one end is located below a base of a gas burner in a burner accommodating portion, and the other end is in contact with a cassette gas cylinder accommodated in the cylinder accommodating portion in the cylinder accommodating portion. It is disclosed that a heat conductive plate positioned as described above is provided. Thus, the combustion heat transmitted to the pedestal portion of the gas burner is transmitted to the cassette gas cylinder, so that the temperature of the cassette gas cylinder can be compensated.

[0007]

By the way, gas stoves for cassette gas cylinders have been required to have a high calorific calorific value that can cope with various kinds of cooking as demand increases. For example, from about 1200 Kcal / h in the early stage of development, it becomes 1700 Kcal / h, and recently, about 2500 Kcal / h is required.

[0008] To this end, it is necessary to satisfy the safety of use of the gas stove and the temperature compensation of the cassette gas cylinder in a well-balanced manner.

In the above-mentioned publication, although the temperature compensation of the cassette gas cylinder can be sufficiently performed, there is a fear that the temperature compensation sometimes becomes excessive when the calorific value is high. In addition, the temperature at the time of use of the gas burner is increasing due to the high calorie as described above, and the thermal effect on the table surface on which the gas stove is installed is a problem, but measures against this have been taken. Absent. In addition, when measures are taken, a separate member or structure is required for heat shielding, and the structure becomes complicated.

In the above-mentioned publication, even if heat of a gas burner can be transmitted to a cassette gas cylinder by a heat conducting plate to perform temperature compensation, one end is provided at the lower end of a thin leg below the gas burner. Since the gas burner is merely located under the small pedestal, the gas burner does not have a structure capable of preventing a thermal influence on the installation surface of the gas stove when the calorie has a high calorific value. Therefore, also in the case of the gas stove having a high calorific value, a separate member or structure is required for heat insulation, and the structure becomes complicated.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and it is possible to compensate the temperature of a cassette gas cylinder without excess or deficiency without increasing the number of parts or complicating the structure. It is an object of the present invention to provide a gas stove for a cassette gas cylinder that can sufficiently prevent the influence of heat on the gas stove.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides, in a main body casing, a burner accommodating section for accommodating a gas burner, and a cylinder for accommodating a cassette gas cylinder for supplying gas to the gas burner. While providing the housing, a gas burner having a gas introduction part for introducing a mixed gas of air and gas into the head under the head having a flame hole, and a heat shield plate provided between the bottom plate of the burner storage part By providing a leg on the lower surface of the gas burner and attaching it to the bottom plate, a space is provided between the heat shield plate and the gas burner, and the heat shield plate is extended as a heat conducting plate into the cylinder housing portion, and is provided in the cylinder housing portion. It is characterized in that the heat of the heat shield plate is conducted to the cassette gas cylinder accommodated therein.

[0013] In the above configuration, it is preferable that a heat insulating space is formed between the heat shield plate and the bottom plate.

[0014] More preferably, the heat shield plate has an enclosing wall which rises so as to be in contact with the lower outer peripheral surface of the gas burner within a predetermined angle range.

[0015]

According to the above construction of the present invention, gas is supplied to the gas burner housed in the cylinder housing section of the main body casing and housed in the burner housing section of the main body casing.
The effect of the heat of the gas burner on the stove installation surface was measured by using a gas burner with a gas inlet under the head with a flame hole to introduce a mixed gas of air and gas into the head, and a heat shield plate underneath. Insulation in the space using the attachment structure to the bottom plate by the legs on the lower surface of the gas burner, and heat from the gas burner having a gas introduction part under the head with a flame hole by this space The double heat-shielding function cooperating with the bottom plate of the burner storage part in a state without conduction can effectively prevent the structure without complicating the structure, and furthermore, it faces the gas burner from directly below. As a result, sufficient radiant heat is received and transmitted to the cassette gas cylinder accommodated in the cylinder accommodating portion with a simple structure of a single heat shield plate and a heat conduction plate, so that the temperature compensation of the cassette gas cylinder is also achieved. Can, all It is possible that the cost of the reduction.

If a heat insulating space is formed between the heat shield plate and the bottom plate, the heat generated by the gas burner is reduced by the heat insulation in the formed space by an amount that hinders the transfer of heat from the gas burner to the bottom plate. The heat shield can be further extended to the installation surface of the gas stove, so that the thermal safety of the use of the gas stove can be further improved. As the amount of heat that is extended to the stove accommodating portion and transmitted to the cassette gas cylinder increases, the temperature compensation of the cassette gas cylinder can be more sufficiently achieved while avoiding excessive heat conduction, such as when conducting heat in the flame hole. Can be.

When the heat shield plate has an enclosing wall that rises so as to contact the outer peripheral surface of the lower portion of the gas burner within a predetermined angle range, heat of the lower portion of the gas burner can be easily received, and the heat shield plate between the gas burner and the heat shield plate can be easily received. In the meantime, the downward heat from the gas burner is trapped, and this heat can be easily received, so that the downward heat from the gas burner can be effectively transmitted to the cassette gas cylinder side regardless of the existence of the heat insulation space. , And can respond to higher calories.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a gas stove for a cassette gas cylinder according to the present invention will be specifically described with reference to several embodiments.

FIGS. 1 to 3 show a first embodiment of the present invention. The gas stove for a cassette gas cylinder according to the present embodiment has a main body casing 1 in which a partition wall 2 accommodates a burner accommodating section 4 for accommodating a gas burner 3 and a cassette gas cylinder 5 for accommodating gas in the gas burner 3. The section 6 is appropriately partitioned. This compartment is not required. On the other hand, between the bottom plate 7 of the burner accommodating part 4 and the gas burner 3 installed thereon, the bottom plate 7 has a plane shape and size at least substantially corresponding to the plane shape and size of the gas burner 3 and A metal heat shield plate 8 that shields heat from the gas burner 3 and the bottom plate 7 on the side thereof is provided.
The heat transfer plate 9 is extended inward, and the tip 9a of the heat conductive plate 9 is in contact with the cassette gas cylinder 5 accommodated in the cylinder accommodating portion 6, so that the heat of the heat shield plate 8 is transmitted to the cassette gas cylinder 5. Characteristic.

As a result, the cassette gas cylinder 5 which is first housed in the cylinder housing section 6 of the main body casing 1 and supplies gas to the gas burner 3 housed in the burner housing section 4 of the main body casing 1, The partition wall 2 that separates the gas container 3 from the gas burner 3 allows the cassette gas cylinder 5 to be used safely. The configuration without the partition 2 is adopted when there is no problem in thermal safety.

Further, a metal heat shield plate 8 located between the bottom plate 7 of the burner accommodating portion 4 and the gas burner 3 installed thereon has a planar shape at least substantially corresponding to the planar shape and size of the gas burner 3. The size and the size of the gas burner 3 well receive the downward heat, and the lower side of the bottom plate 7 is shielded from the entire gas burner 3 together with the bottom plate 7. Even with a small amount, the effect of heat on the installation surface of the gas stove can be sufficiently prevented, and the safety of use of the gas stove can be ensured.

The amount of heat which the heat shield plate 8 receives from the entirety of the gas burner 3 in the downward direction is equal to that of the gas burner 3.
It is not as high as the flame hole 3a, and is sufficient to compensate for the temperature of the cassette gas cylinder 5.
And transmitted to the cassette gas cylinder 5 via the heat conducting plate 9 which is provided on the heat shield plate 8 and extends into the cylinder storage section 4 and the tip 9a contacts the cassette gas cylinder 5 stored in the cylinder storage section 4. Therefore, the temperature of the cassette gas cylinder 5 can be compensated without any excess and shortage, and stable combustion can be ensured even in the case of a high calorie calorific value while ensuring the thermal safety of the use of the cassette gas cylinder 5.

Further, since the heat shield plate 8 and the heat conductive plate 9 are formed integrally, there is no particular increase in the number of parts or the structure is complicated.

Therefore, according to the basic features of the present embodiment, a simple structure which does not increase the number of parts or complicates the structure as compared with the conventional structure in which only the temperature compensation of the cassette gas cylinder is performed. , The cassette gas cylinder 5 without impairing the thermal safety of the cassette gas cylinder 5
Temperature compensation can be properly performed without excess or deficiency, and at the same time, the heat influence on the installation surface of the gas stove can be sufficiently prevented, and the safety of use of the gas stove can be ensured.

The heat shield plate 8 may have a planar shape and a size protruding outward from the gas burner 3 when viewed from a plane.
Since the protrusion is not significant, the gas burner 3
It is appropriate that the shape substantially corresponds to the planar shape and size of.

The gas burner 3 has a flame hole 3a around a circular head 3b, and a gas inlet 3d having a mixing tube 3c is provided below the head 3b. The mixing tube 3c extends to near the cylinder housing 6. Cylinder storage section 6
A governor 11 for connecting the cassette gas cylinder 5 accommodated in the cylinder accommodating section 6 is installed therein. A gas supply port 12a connected to the governor 11 via a gas cock 12 is connected to a burner from the cutout of the partition wall 2. The gas can be supplied to the mixing pipe 3c facing the inside of the storage part 4, and the gas cock 12 is opened and closed by the operation knob 12b to supply the gas or stop the gas supply. The ignition device 20 operates in conjunction with the opening operation at this time, and sparks fly from the ignition plug 20a to the flame hole 3a, so that automatic ignition can be performed.

Prior to this use, a cylinder setting mechanism 13 is provided in the cylinder housing 6 so that the cassette gas cylinder 5 can be connected or replaced.
The cylinder setting mechanism 13 includes a slide member 14 held at the bottom of the cylinder housing portion 6 so as to be able to slide back and forth, a set lever 15 for moving the slide member 14 back and forth, and a cam / spring mechanism for interlocking these. 16. The cam / spring mechanism 16 is used for the slide member 1.
4 is moved back and forth in conjunction with the operation of the set lever 15, and the cassette gas cylinder 5 is pushed forward from the rear end to connect the connection port 1.
A cylinder connection position for press-fitting and connecting to the cylinder port 2a;
By returning the nozzle built in the nozzle or the valve incorporated in the connection port 12a, the nozzle is moved to the disconnection position where the connection is automatically released, and is stabilized at these positions. The slide member 14 has a pressing piece 14a for pressing the cassette gas cylinder 5 from the rear end.

A juice receiving tray 18 is detachably attached to the opening of the burner receiving portion 4 from above, and is stably fitted into the step 4a of the opening. A cooking container or the like is received by the gotoku 21 stopped by the screw 22 or the like, and can be used for heating cooking with a gas stove. A lid 24 whose lower side is pivotally supported by a shaft 23 at the lower side of the opening of the cylinder housing portion 6 is provided in the cylinder housing portion 6. It can be opened and closed to accommodate the cassette gas cylinder 5 or to be replaced.
However, these specific configurations can be variously changed, and various known configurations can be adopted.

In the present embodiment, a heat insulating space 25 is formed between the heat shield plate 8 and the gas burner 3 by using a mounting structure to the bottom plate 7 by legs 3g provided on the lower surface of the gas burner 3. . This prevents heat from the gas burner 3 from being transmitted to the bottom plate 7 due to the heat insulation in the heat insulating space 25.
Since the heat of the gas burner 3 is less likely to reach the installation surface of the gas stove without complicating the structure, the thermal safety of the use of the gas stove can be further improved. Further, since the heat insulating space 26 is also provided between the heat conduction plate 9 and the bottom plate 7, the heat of the gas burner 3 is less likely to be transmitted to the bottom plate 7 than in a case where the heat insulation plate 9 is not provided. Can be increased.

The amount of heat transferred from the heat shield plate 8 to the cassette gas cylinder 5 via the heat conduction plate 9 increases by the amount by which the heat of the gas stove becomes difficult to escape below the gas stove due to the heat insulating spaces 25 and 26. The temperature compensation of the cassette gas cylinder 5 can be more sufficiently achieved while avoiding excessive heat conduction as in the case of conducting the heat of the hole 3a. Therefore, the leg 30 is provided on the lower surface of the main casing 1.
Is provided, there is an advantage that thermal safety can be ensured even if the height of the main body casing 1 floating from the installation surface of the stove is suppressed, and that a gas stove having a high calorific value can be used in a small size.

Further, in the present embodiment, the heat shield plate 8 is provided on the lower outer peripheral surface of the gas burner 3, and in this embodiment, on the lower outer peripheral surface of the gas introduction portion 3d in a predetermined angular range, for example, 1 °.
It has an enclosing wall 8a that rises so as to be in contact with a range of about 80 degrees. This makes it easier to receive the heat of the lower part of the gas burner 3 and to store the heat flowing downward from the gas burner between the gas burner 3 and the heat shield plate 8 so as to easily receive this heat. Irrespective of the presence of 26, etc., heat directed downward from the gas burner 3 can be effectively transmitted to the cassette gas cylinder 5 side, and it is possible to cope with higher calorie.

In the case of this embodiment, the heat shield plate 8 and the gas burner 3
Gas burner 3 to form an insulating space 25 between
A lower leg 3g is provided on the lower surface 3e of the base plate 7 and attached to the bottom plate 7. In order to form a heat insulating space 26 between the heat conductor 9 and the bottom plate 7, the heat conductor 9 is pressed or the like so as to be continuous with the heat shield plate 8 with a rising step 31. The heat shield plate 8 and the heat conduction plate 9 are attached to the bottom plate 7 by screws 32 together with the gas burner 3 while being sandwiched between the bottom plate 7 and the leg 30 of the gas burner 3 at the heat shield plate 8. Have been. This screw stop of gas burner 3 is one place,
The positioning protrusions 3f projecting downward from the lower surface 3e of the gas burner 3 are inserted into the positioning holes 8b and 7a of the heat shield plate 8 and the bottom plate 7, so that they are prevented from rotating and positioned, and are stabilized in a predetermined direction. Has become. In addition, the heat shield plate 8 and the heat conductive plate 9 are also prevented from rotating and positioned, thereby being stabilized in a predetermined direction.
However, the integral body of the heat shield plate 8 and the heat conduction plate 9 is a long member extending from the installation part of the gas burner 3 to the accommodation part of the cassette gas cylinder 5, and maintains the bottom plate 7 and the heat insulating space 26 of a predetermined size. And the tip 9a in the cylinder housing 6
However, it is necessary that the contact with the cassette gas cylinder 5 housed in the cylinder housing part 6 and connected to the governor 11 be ensured. In order to satisfy this, in the present embodiment, a downward concave portion 9d formed in the middle of the heat conductive plate 9 is fitted to an upward convex portion 32 formed in a portion near the partition wall 2 in the burner accommodating portion 4 of the bottom plate 7. And screw 33 from above
On the other hand, the front end portion 9a is provided with a claw 34 projecting forward on both left and right sides of the front end portion 9a. , Which is slid downward from above and hooked on the bottom body 7. Thus, the heat shield plate 8 and the heat conductive plate 9 are integrally installed at an appropriate position and posture, and stably exhibit the various effects described above. If the convex portion 32 is replaced with a heat insulating spacer, or a heat insulating spacer is interposed between the convex portion 32, it is possible to prevent the heat from escaping from the heat conductive plate 9 to the bottom plate 7 at this portion.

The tip 9a of the heat conducting plate 9 has a curved shape that enters the recess 17 in order to obtain a predetermined contact area for heat conduction with the cassette gas cylinder 5.

Thus, at a position where the cassette gas cylinder 5 accommodated in the cylinder accommodating portion 6 is fitted into the concave portion 17 and is stabilized, the cassette gas cylinder 5 enters the curved shape of the front end portion 9a of the heat conductive plate 9, It comes into surface contact with this in a range of approximately 90 degrees in the outer peripheral direction.

The contact area in this case is obtained by multiplying the contact length L in the outer peripheral direction by the width B of the tip 9a, and is set to a predetermined size.

The portion of the heat shield plate 8 and the portion of the heat conduction plate 9 are
It is also within the scope of the present invention to use different members for different roles and to combine both members integrally.

FIG. 4 shows a second embodiment of the present invention. In the present embodiment, the heat conductive plate 9 is integrally provided so as to extend from the heat shield plate 8 without any step, and the heat shield plate 8 and the heat conductive plate 9 are provided.
Is different from that of the first embodiment in that a heat insulating space 27 is formed between the entire structure and the bottom plate 7.

With such a configuration, the heat insulation space 25 between the heat shield plate 8 and the gas burner 3, the heat insulation space 27 between the entire heat shield plate 8 and the heat conduction plate 9, and the bottom plate 7 are formed. 2
Insulation in each of the two insulation spaces allows gas burners 3
The heat directed downward from the gas stove can be more easily obstructed from reaching the installation surface of the gas stove, and the thermal safety of use of the gas stove is further improved.

In this embodiment, a heat insulating space 41 between the gas burner 3 and the bottom plate 7 is provided by a heat insulating spacer 41 such as heat resistant rubber.
7 from the heat shield plate 8 to the heat conduction plate 9
This is advantageous for preventing heat from escaping. However, the present invention is not limited to this, and it is also possible to integrally form a cylindrical portion at the opening of the hole through which the screw 32 of the heat shield plate 8 and the heat conductive plate 9 passes to form a spacer. In this case, a special spacer member is not required, and the number of parts is reduced.

However, even without the heat insulating spaces 25 and 27 as provided in the first and second embodiments, the first
The operation and effect described with respect to the basic characteristics of the embodiment are not changed. Although the heat insulating space 26 between the heat conducting plate 9 and the bottom plate 7 is not essential, if this is omitted, a part of the heat transmitted to the cassette gas cylinder 5 via the heat conducting plate 9 escapes to the bottom plate 7 side, so that it is not optimal. Absent.

[0041]

According to the present invention, a simple structure which does not increase the number of parts or complicates the structure, compared with the conventional structure in which only temperature compensation of a cassette gas cylinder is performed, due to the above operation. In this way, the temperature compensation of the cassette gas cylinder can be properly performed without excess or deficiency without compromising the thermal safety of the use of the cassette gas cylinder, and stable combustion can be compensated even in the case of high calorie calorific value. The effect of heat on the installation surface of the gas stove can be sufficiently prevented, and the safety of use of the gas stove can be ensured.

In the case where the heat insulating space is formed between the heat shield plate and the bottom plate and / or between the heat shield plate and the gas burner, the thermal safety of the use of the gas stove can be further improved. With the two heat insulating spaces, the thermal safety of the use of the gas stove is further improved, and the temperature compensation of the cassette gas cylinder is more sufficiently compensated while avoiding excessive heat conduction such as the case of conducting the heat of the flame hole. Achieve,
It can respond to higher calories.

In the case where the heat shield plate has an enclosing wall which rises so as to be in contact with the lower outer peripheral surface of the gas burner within a predetermined angle range, heat directed downward from the gas burner is effectively used regardless of the existence of the heat insulating space. Can be transmitted to the side of the cassette gas cylinder.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a gas stove for a cassette gas cylinder as a first embodiment of the present invention.

FIG. 2 is a plan view of the gas stove of FIG.

FIG. 3 is an enlarged sectional view showing a part of the gas stove of FIG. 1;

FIG. 4 is a sectional view showing a gas stove for a cassette gas cylinder as a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body casing 2 Partition wall 3 Gas burner 4 Burner accommodating part 5 Cassette gas cylinder 6 Cylinder accommodating part 7 Bottom plate 8 Heat shield plate 8a Enclosure wall 9 Heat conduction plate 9a Tip 25,26,27 Insulated space

Claims (3)

(57) [Claims] To 1. A body casing, while providing a burner accommodating portion for accommodating a gas burner, a cylinder housing section which is adapted to supply gas to the gas burner housing the cassette gas cylinder, under the head with a fire hole Of air and gas on the head
A gas burner having a gas introduction unit for introducing a mixed gas,
A heat shield plate is provided between the bottom plate of the burner housing and the gas
By attaching legs to the bottom of the
A space is provided between the heat shield plate and the gas burner, and the heat shield plate is extended as a heat conductive plate into the cylinder accommodating portion.
The heat shield plate is attached to the cassette gas cylinder stored in the
A gas stove for a cassette gas cylinder, which conducts heat . 2. The gas stove for a cassette gas cylinder according to claim 1, wherein a heat insulating space is formed between the heat shield plate and the bottom plate. 3. The gas stove for a cassette gas cylinder according to claim 1, wherein the heat shield plate has an enclosure wall that rises so as to contact the outer periphery of the lower part of the gas burner within a predetermined angle range.