JP5112269B2 - Gas stove - Google Patents

Description

  The present invention relates to a gas stove having at least two gas burners arranged side by side.

  In the gas stove provided with two gas burners on the left and right, the heating power of the left and right gas burners is set to be different. That is, the heating power of one gas burner is set smaller than the heating power of the other gas burner. When a gas stove is installed in a kitchen, there is a wall of the kitchen on the side of the gas stove depending on the installation location. When a gas burner having a large heating power is located on the wall side, it is desired to reduce the heating power of the gas burner on the wall side because a large amount of spillage or oil smoke is applied to the wall surface and the wall surface becomes very dirty. For this reason, it is necessary to manufacture two types of gas stoves, that is, a gas stove located on the right side and a gas stove located on the left side of the gas burner with the smaller thermal power, which has led to an increase in cost.

Therefore, the thermal power control sections for both gas burners are combined into one common, and the one thermal power control section and the left and right gas burners are connected via metal pipes, and the gas stove with the left and right gas burners arranged in reverse is provided. In order to reduce the manufacturing cost, it is known to replace the metal pipe when manufacturing (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 2000-179862 (FIGS. 3 and 4)

  In the above conventional one, the two thermal power control parts for the gas burner are combined into one, and the corresponding structure is obtained by replacing the metal pipe, but the left and right arrangements are still opposite to each other. The gas stove has to be manufactured. Therefore, there is a limit to the reduction in manufacturing cost.

  Then, this invention makes it a subject to provide the gas stove which can change the thermal power of a gas burner on either side freely with one type of gas stove in view of said problem.

In order to solve the above problems, a gas stove according to the present invention is connected to at least a pair of left and right gas burners on the upper surface, and one gas burner is connected to each gas burner, and the heating power is adjusted by increasing or decreasing the amount of gas supplied to the gas burner. In a gas stove equipped with a control unit, the above-mentioned pair of gas burners and the thermal power control unit have the same specifications as each other, and the upper limit of the thermal power control range of both thermal power control units is limited to a predetermined thermal power less than the maximum thermal power Means for restricting the upper limit of one of the thermal power adjustment ranges and setting it to a gas burner having a smaller thermal power than the other , the operation unit for limiting the upper limit of the one thermal power adjustment range, It is provided inside the gas stove so that it cannot be operated during normal use .

  In the above configuration, the left and right gas burners and the thermal power control units that supply gas to each gas burner have the same specifications, so that only one type of gas stove needs to be manufactured. And the thermal power of the gas burner of the desired side can be made small by restrict | limiting the upper limit of the thermal power control range of the thermal power control part which supplies gas to the gas burner which wants to make a thermal power small.

In addition, since the operation part for limiting the upper limit of the above-mentioned one thermal power adjustment range was provided inside the gas stove so that it could not be operated during normal use, when installing the gas stove, it was decided according to the conditions of the installation location. The capacity of either gas burner can be reduced. In addition, it is possible to make it impossible for the user to cancel or change the state once set.

  However, if it is temporary, it is not so inconvenient to cancel the restriction of firepower. Therefore, it is desirable that the restriction on the upper limit of the thermal power adjusting means by the thermal power limiting means can be released for a predetermined time by an operation that can be performed in a normal use state.

  As is clear from the above description, the present invention can regulate the upper limit of the desired gas burner's thermal power according to the situation of the installation site without producing two symmetrical gas stoves. The manufacturing cost can be reduced. Moreover, even if the installation status of the gas stove changes due to moving or remodeling, it is possible to freely change the left or right gas burner with the upper limit of the thermal power regulated without replacing the gas stove.

  With reference to FIG. 1, 1 is an example of a gas stove according to the present invention. The gas stove 1 is provided with a pair of left and right gas burners 11 and 12 on a top plate 10 which is an upper surface, and a small burner 13 on the back side of the center. Then, the fire extinguishing and the thermal power adjustment of the gas burner 11 are performed by a thermal power adjustment knob 21 having a function as a point fire extinguishing button. The other gas burners 12 and small burners 13 are similarly configured to perform point extinguishing and heating power adjustment by the respective heating power adjustment knobs 22 and 23. For example, when the gas burner 11 is extinguished, the thermal power adjustment knob 21 is buried in the front surface of the gas stove 1, and when the thermal power adjustment knob 21 is pushed in a little, the lock is released and the thermal power adjustment knob 21 protrudes forward. A sensor such as a reed switch detects the protrusion of the heating power adjustment knob 21 and the gas burner 11 is ignited. After ignition, the heating power of the gas burner 11 can be adjusted by rotating the heating power adjustment knob 21. When the thermal power adjustment knob 21 is rotated in the left direction, the thermal power is decreased, and when the thermal power control knob 21 is continuously rotated in the left direction, the thermal power becomes the minimum thermal power. Conversely, when it is rotated to the right, the thermal power is increased, and when it is further rotated to the right, the thermal power is maximized. Reference numeral 20 denotes a power switch.

  The gas stove 1 is installed in a kitchen. In the present embodiment, a kitchen wall 3 is present on the left side of the gas stove 1. It is desirable that the left gas burner 12 close to the wall 3 side has a maximum thermal power smaller than that of the right gas burner 11. However, the gas burners 11 and 12 themselves used the same ones. Therefore, the maximum heating power is the same as the function of the gas burners 11 and 12. Therefore, the opening degree of the thermal power control unit that supplies gas to the gas burner 12 is controlled so that the upper limit of the thermal power control range of the gas burner 12 is controlled to be smaller than the maximum thermal power of the gas burner 12 itself. In addition, the thermal power control part connected to both the gas burners 11 and 12 has the same specification.

  With reference to FIG. 2, 4 shows an example of a thermal-power adjustment part. The thermal power adjustment unit 4 is provided with a stepping motor 41 and a flow rate throttle unit 42 driven by the stepping motor. The flow restrictor 42 is provided with a rotating plate 61 rotated by the stepping motor 41 and a fixed plate 62 with which the rotating plate 61 abuts. An orifice plate 63 is further attached to the upper surface of the fixed plate 62. . A packing 64 is provided between the fixed plate 62 and the orifice plate 63 to ensure airtightness. Reference numeral 43 denotes an electromagnetic safety valve.

  Referring to FIG. 3, the rotary plate 61 is provided with a long hole 6 a extending in the vertical direction along the circumferential direction. The fixed plate 62 and the packing 64 are provided with a plurality of openings 6b located on the same circumference as the long hole 6a. Further, the orifice plate 63 is provided with orifice holes 6c corresponding to the respective openings 6b.

  When the rotating plate 61 rotates to the left as viewed from above, the long hole 6a and one opening 6b coincide. When the rotating plate 61 further rotates leftward, the number of openings 6b corresponding to the long holes 6a sequentially increase to two and three. When the rotating plate 61 further rotates, the number of openings 6b that coincide with the long holes 6a does not increase, but the coincident openings 6b sequentially shift. The orifice holes 6c provided corresponding to the respective openings 6b are set so that their diameters are sequentially increased. Therefore, when the rotating plate 61 rotates, the gas passage area gradually increases step by step. And the thermal power of a gas burner becomes large because the passage area of gas increases. When the heating power adjustment knobs 21, 22, and 23 are operated, the operation amount is input to the control unit 5, and the stepping motor 41 is driven by the control unit 5 to have a predetermined rotational phase.

  Referring to FIG. 4A, for example, the gas burner 11 is located on the side opposite to the wall 3, so that it is not necessary to regulate the thermal power. Therefore, when the heating power adjustment knob 21 is rotated to adjust the heating power, the heating power changes stepwise as shown in FIG. In the present embodiment, the thermal power is changed in seven stages from a thermal power 1 that is a low fire to a thermal power 7 that is a high fire.

  On the other hand, since the maximum thermal power of the left gas burner 12 is regulated, as shown in FIG. 4B, even if the thermal power adjustment knob 22 continues to be rotated to the right, the thermal power 6 is maximized and the thermal power 7 is not reached.

  As described above, when the maximum heating power of the left gas burner 12 is regulated, a changeover switch (not shown) is provided inside the gas stove 1, and the installation operator installs the gas stove 1 according to the situation of the installation location. The side that regulates the maximum thermal power can now be selected. Therefore, when the wall 3 is located on the right side, the changeover switch may be selected so as to restrict the maximum heating power of the gas burner 11 instead of the gas burner 12. Thus, the reason why the changeover switch is provided in the gas stove 1 is to prevent the user from releasing the restriction on the maximum thermal power after the gas stove 1 is installed. It should be noted that the maximum heating power of the gas burner on the desired side is regulated by performing an operation in which various switches provided on the front surface of the gas stove 1 are not normally performed, that is, a so-called concealment operation, without providing the switch in the gas stove 1. Also good.

  By the way, an indicator 25 is provided on the front surface of the gas stove 1 in the vicinity of the heating power adjustment knobs 21 and 22, as shown in FIG. The indicator 25 includes an inner ring 25a and an outer ring 25b that surrounds the inner ring 25a. Both the rings 25a and 25b can be individually turned on and off and blinked. In this embodiment, since the maximum thermal power of the left gas burner 12 is regulated, the inner ring 25a is turned on, and since the maximum thermal power is not regulated in the right gas burner 11, the outer ring 25b is lit. .

  In addition, a booster switch may be provided in the center part of both indicators 25, and a booster switch may be provided in the operation part 24. This booster switch is for releasing the restriction of the maximum heating power for a certain period of time when operated. For example, when the booster switch is attached to the center of the indicator 25, the center of the left indicator 25 is pushed. . Then, the restriction on the maximum heating power of the gas burner 12 on the left side is released for a certain time (for example, about 1 hour), and the heating power adjustment range is changed from that shown in FIG. 4B to that shown in FIG. Since the release of the restriction by the booster switch is only temporary, the indicator 25 blinks the outer ring 25b.

  By the way, when the maximum thermal power is restricted, the one shown in FIG. 4 is simply set not to become the thermal power 7, but as shown in FIG. 6, the intermediate thermal power may also be changed. Good. That is, when the maximum thermal power is not regulated as in the right gas burner 11, the thermal power is adjusted with four types of thermal power 1, 3, 5 and 7, and the maximum thermal power is regulated as in the left gas burner 12. In such a case, the thermal power adjustment may be performed using four types of thermal powers 1, 2, 4, and 6.

  Around each of the heating power adjustment knobs 21, 22, and 23, a light emitting unit 2 a that indicates the heating power is provided. In the present embodiment, seven light emitting portions 2a are provided. When the maximum thermal power is not regulated, the number of light emitted from the light emitting units 2a may be increased or decreased sequentially corresponding to each thermal power. As shown in FIG. 4 (B), when the heating power 6 is restricted, the number of light emission may be reduced to 6 so that the rightmost light emitting section 2a does not emit light.

  Alternatively, as shown in FIG. 3, for example, a shallow groove passage 62bp is formed on the lower surface 62B side of the fixed plate 62 from the opening 62a2 opened by the thermal power 2 toward the opening 62a1 opened by the thermal power 1, When the thermal power is restricted, when the thermal power 1 is changed to the thermal power 2, a new thermal power in which the long hole 6a overlaps the groove passage 62bp, that is, a thermal power 1.5 is provided, and the thermal power is changed in seven stages. Accordingly, all the light emitting units 2a may emit light sequentially.

  In addition, as shown in FIG. 6, when the thermal power actually changes in four stages, the thermal power adjustment range according to the rotation angle of the thermal power adjustment knobs 21 and 22 is divided into seven equal parts regardless of the actual thermal power, It is desirable that all the light emitting units 2a emit light sequentially. Although it is not always necessary to increase or decrease the heating power in seven stages for the small burner 13, in order to match the feeling of operation of the heating knobs 21 and 22, the seven light emitting units 2a are provided for the heating power adjustment knob 23 to adjust the heating power. It is desirable to divide the heating power adjustment range of the knob 23 into seven equal parts so that all the light emitting sections 2a emit light sequentially.

  In both cases of the thermal power changes shown in FIGS. 4 and 6, the amount of change between the thermal power 6 and the thermal power 7 is set larger than the amount of other thermal power changes in order to make the effect of restricting the maximum thermal power remarkable. .

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

The figure which shows the structure of one embodiment of this invention Sectional view showing the structure of the thermal power control unit The perspective view explaining a part of function of a thermal-power control part The figure which shows the state of thermal power control The figure which shows the composition of the front of the gas stove The figure which shows the other state of thermal power control

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas stove 4 Thermal power control part 5 Control part 11 Gas burner 12 Gas burner 13 Small burner 25 Indicator 41 Stepping motor

Claims (2)

In the gas stove comprising at least a pair of left and right gas burners on the upper surface and a thermal power control unit that is connected to each of the gas burners and adjusts the thermal power by increasing or decreasing the amount of gas supplied to the gas burner. The gas burner and the thermal power control unit have the same specifications as each other, and there is provided a thermal power limiting means for limiting the upper limit of the thermal power control range of both thermal power control units to a predetermined thermal power smaller than the maximum thermal power. The upper limit can be set to a gas burner with a smaller heating power than the other, and an operation part for limiting the upper limit of the one heating power adjustment range is provided inside the gas stove so that it cannot be operated during normal use. A gas stove characterized by the fact that The gas stove according to claim 1, wherein the restriction on the upper limit of the thermal power adjusting means by the thermal power limiting means can be released for a predetermined time by an operation that can be performed in a normal use state.

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