JPH0118968Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a gas stove equipped with a grill.

[Prior Art] A grill having upper and lower burners has been known, for example, from Utility Model Application No. 101084/1984. In the device shown in Utility Model Application No. 57-101084, the adjustment knob is set to a preset position before ignition, and after ignition, the heating power of the upper and lower burners can be switched and adjusted by operating the adjustment knob. When the adjustment knob is set to the preset position, the upper and lower burners are fully open (high flame) to ensure ignition, but when the adjustment knob is slid halfway toward the opposite direction, the upper burner is fully open (high flame). in,
The lower burner is designed to be in a low flame state, and if you slide the adjustment knob all the way in the opposite direction, the upper burner will be extinguished and the lower burner will be in a high flame state.

[Problem to be solved by the invention] In the above conventional example, the upper burner is in a high flame state and the lower burner is in a low flame state when the adjustment knob is slid partway in the opposite direction. Both burners are ignited with varying degrees of intensity, so there is no problem if you slide the adjustment knob to return the lower burner to high flame, but if you slide the adjustment knob all the way in the opposite direction, the upper burner The fire is extinguished and the lower burner is designed to reach a high flame. If the adjustment knob is operated again in this state, the upper burner will not ignite smoothly, causing a gas leak or a small explosion. There was a problem that

The present invention was devised in view of the above-mentioned problems of the conventional method, and its purpose is to prevent the adjustment knob from being operated again after it has been fully operated, and to control only one of the burners. We provide gas stoves that can be used safely even though they are extinguished.

[Means for Solving the Problems] The gas table stove of the present invention includes a grill inside the table main body, an upper burner and a lower burner are provided at the upper and lower parts of the grill, respectively, and the upper burner and the lower burner are connected to each other. In a gas table stove that has a gas distributor that can distribute and supply gas and adjust the amount of distribution, the gas distributor is provided with a main operation knob for supplying and stopping the supply of gas,
An on-off valve is delivered to each of the upper burner connection port and the lower burner connection port of the gas distributor, and both on-off valves are inserted into the through holes of the gas distributor so that they can slide vertically, and the upper end of the on-off valve is inserted from the top surface of the gas distributor. A spring forces the upper end of the on-off valve to protrude upward, and the on-off valve is pushed down onto the underside of the cam, which is rotatably operated by a thermal power switching lever provided on the upper surface of the gas distributor facing the upper end of the on-off valve. A bypass is provided that allows gas for low-flame combustion to flow even when the on-off valve is closed at either the upper burner connection port or the lower burner connection port. The heating power switching lever is made to protrude from the slit hole in the table body, and the adjustment knob at the end of the heating power switching lever can be slid along the slit hole, and the adjustment knob is placed at the opposite end of the slit hole from the preset position. A bag-like cover part is provided to prevent re-operation when stored, and with the heating power switching lever positioned approximately in the middle of the slit hole, the opening/closing valve having the bypass passage rises within the recessed part and enters the closed state. At the same time, the on-off valve that does not have a bypass path is pushed by the protrusion and set to the open state, and the heating power switching lever is positioned between approximately the middle of the slit hole and the bag-like cover part. The on-off valve with the bypass passage is pushed by the protrusion and becomes open, and the on-off valve without the bypass passage rises within the recess and is set in the closed state. By positioning the heating power switching lever at a position between the and the bag-like cover part, the on-off valve with the bypass passage was pushed by the protrusion, and the on-off valve without the bypass passage rose within the recessed part. In this state, press the adjustment knob toward the bag-shaped cover part, operate the main operation knob to stop the gas supply, and return the thermal power switching lever to the preset position of the slit hole in conjunction with the main operation knob. The device is equipped with a preset means, and by adopting such a configuration, the object of the present invention has been achieved.

[Function] That is, in the present invention, by sliding the adjustment knob and positioning the heating power switching lever approximately in the middle of the slit hole, the on-off valve having the bypass path rises within the recessed part and closes. At the same time, the opening/closing valve of the side without a bypass path is pushed by the protrusion and set to the open state, and the one with a bypass path flows only from the bypass path and becomes a low flame. If there is no opening/closing valve, the opening/closing valve opens and a strong flame is produced. Furthermore, when the fire power switching lever is positioned between approximately the middle of the slit hole and the bag-like cover part, the opening/closing valve of the one with the bypass path is pushed by the protrusion. At the same time, the on-off valve on the side without the bypass passage rises within the recess and is set in the closed state, and the on-off valve on the side with the bypass passage opens, causing a strong fire and causing the bypass passage to become open. If you do not have one, the on-off valve closes to extinguish the fire, and you can switch and adjust the firepower by sliding the adjustment knob. Moreover, when the fire is strong on the side with the bypass passage and extinguished on the side without the bypass passage, the adjustment knob is biased toward the inside of the bag-like cover, so that the adjustment knob is not allowed to be operated again. When the main operating knob is operated to stop the gas supply, the preset means returns the thermal power switching lever to the preset position of the slit hole.

[Example] The present invention will be explained in detail below using examples.

In FIG. 1, reference numeral 1 denotes a box-shaped table body, and a grill 2 used for grilling fish or the like is provided in the center of the table body 1.

As shown in FIG. 2, an upper burner 3 and a lower burner 4 are installed on the lower surface of the ceiling and the upper surface of the bottom of the grill 2, respectively.
is provided. Note that 8 is a net for placing the roasted food, and 9 is a cover for preventing oil, juice, etc. from splashing on the lower burner 4. Further, a door 10 for opening and closing the grill 2 is attached to the center of the front surface of the table body 1.

What is shown by imaginary lines in FIG. 3 is a gas flow control device 11 for the grill 2, in which a thermal power adjustment section 12, a governor 13, and a governor distributor 14 are connected in series. In the firepower adjustment section 12, the firepower of the upper burner 3 and the lower burner 4 can be adjusted simultaneously by turning a main operating shaft 16, and the main operating shaft 16 protrudes from the front of the table body 1, and a main operating knob 17 is attached thereto. It is being Further, a piezoelectric element 18 for igniting the upper and lower burners 3 and 4 by discharge is also attached to the thermal power adjustment section 12. The gas flowing out from the pipe 25 to the thermal power adjustment section 12 passes through the governor 13 and flows into the gas distributor 14, where it is branched so that one side flows to the upper burner 3 through the upper burner connection port 19, and the other side flows to the lower burner. It is adapted to flow to the lower burner 4 through the connection port 20. Fourth
As shown in the figure, on-off valves 21 and 22 are provided in the upper and lower burner connection ports 19 and 20, respectively. The on-off valves 21 and 22 are made by inserting a valve rod 31 through the center of a rubber valve 30.
The upper end is hemispherical. The valve rods 31 of both on-off valves 21 and 22 are fitted with O-rings 32 and inserted into the through holes 33 of the gas distributor 14, with their upper ends protruding from the upper surface of the gas distributor 14, and biased upward by the springs 23. The upper and lower burner connection ports 19 and 20 are closed when the on-off valves 21 and 22 are raised, and are opened when they are lowered. Further, a bypass path 24 is formed beside the on-off valve 22 on the lower burner 4 side. Further, as shown in FIG. 3, a first base plate 35 is attached to the upper surface of the gas distributor 14 with screws, and a substantially semicircular support shaft 34 protrudes from the upper surface of the first base plate 35. The cam 27 is rotatably pivoted, and a protrusion 36 protrudes from the outer peripheral end of the cam 27.
A spring 39 is stretched between the cam pin 37 and the spring locking piece 38 of the first base plate 35. The outer periphery of the lower surface of the cam 27 is connected to the valve rod 3 as shown in Figure 4.
1, and on the outer periphery of the lower surface of the cam 27, a protrusion 28 for pressing and lowering the on-off valves 21, 22 and a recessed part 29 for raising the on-off valves 21, 22 are provided. It is provided. Incidentally, reference numeral 40 denotes a cam retainer for preventing the cam 27 from being lifted up by being pushed by the valve rod 31, and is integrally formed with the first base plate 35. The pipe 25 is fixed to the upper surface of the thermal power adjustment section 12, and the second base plate 41 is fixed to the upper surface of the pipe 25 by welding. Reference numeral 6 indicates a substantially dogleg-shaped fire power switching lever rotatably mounted on a support shaft 42 erected on the upper surface of the second base plate 41; 43 is a dogleg-shaped arm; is the protrusion 36 of the cam 27
and the base end of the fire power switching lever 6, respectively, with a cam pin 37.
and are pin-coupled with a link pin 44. The tip of the heating power switching lever 6 is exposed through a slit hole 7 on the front surface of the table body 1 and can be slid left and right, and an adjustment knob 5 is attached to the tip.

What is shown in FIGS. 5 and 6 is a presetting means for ensuring that the upper and lower burners 3, 4 are fully opened at the time of ignition, and is a lever lock plate rotatably attached to the front surface of the second base plate 41. 45
, a lever reset plate 46 inserted into the main operating shaft 16, and a locking arm 47. The left end of the lever lock plate 45 is pivotally attached to the second base plate 41 with a pin 48, screws, etc., and the lever lock plate 45 is tensioned between the spring locking piece 49 of the second base plate 41 and the spring locking piece 50 of the lever lock plate 45. A spring 51 is tensioned to pull the lever lock plate 45 upward and bias it so that the stop plate 52 of the lever lock plate 45 comes into contact with the second base plate 41 when the lever lock plate 45 is approximately horizontal. It's getting old. Further, a lever slide hole 53 that is long from left to right is bored in the lever lock plate 45, and a substantially triangular piece 54 protrudes from the lower edge of the lever slide hole 53, and extends upward from the right end of the lever slide hole 53. A locking groove 55 is cut into the lever slide hole 53, and the thermal power switching lever 6 is inserted through the lever slide hole 53. The main operating shaft 16 has an oval-shaped cross section, and the main operating shaft 16 includes, in order from the base end, a trigger 56 for discharging the piezoelectric element 18, and a compression spring 5.
7. Locking arm 47 and lever reset plate 4
6 is inserted and prevented from coming off by a C ring 59 fitted into a groove 58 on the outer periphery of the main operating shaft 16.
Further, a pair of small protrusions 61 are provided on the inner periphery of the through hole 60 for inserting the lever reset plate 46 into the main operating shaft 16.
protrudes, and the lever reset plate 46 is given play at an angle of approximately 90 degrees with respect to the main operating shaft 16. Moreover, when the main operating shaft 16 is rotated, the operating end 62 at the tip of the lever reset plate 46 moves toward the lever. A reset lever guide is adapted to slide left and right on the front side of the slide hole 53, and has one end hooked on the hole edge 63 of the lever lock plate 45 and the support seat 64, and the other end hooked on the hook piece 65. 66 presses down the lever reset plate 46 to prevent it from floating away from the lever lock plate 45. Further, the through hole 67 of the locking arm 47 is a round hole, and although the locking arm 47 can freely rotate with respect to the main operating shaft 16, a locking piece 68 protruding from the outer periphery of the base end The locking arm 47 is prevented from rotating counterclockwise by hitting a locked piece 69 bent in a substantially L shape from the lever reset plate 46 to the rear side, and the locking arm 47 is prevented from rotating counterclockwise. The engaging portion 70 extending forward from the edge is engaged with the edge of the lever reset plate 46 to bring the locking arm 47 and the lever reset plate 46 into close contact, thereby ensuring that the engagement piece 68 is securely attached to the engaged piece 69. It is designed so that it corresponds to Furthermore, a spring 71 is inserted between the tip of the locking arm 47 and the right end of the lever lock plate 45.
They are connected by

What is shown in FIG. 8 is a slit hole 7 provided on the front surface of the table body 1.
The adjustment knob 5 can be slid along the right end, and the right end is a preset position, and the left end is provided with a bag-like cover part 15 in which the adjustment knob 5 can be accommodated.

Next, the operation of the cam mechanism and preset means will be explained. In the state before ignition, the adjustment knob 5 is at the rightmost preset position as shown in FIG. As shown in FIG. 5, the heating power switching lever 6 is placed in the locking groove 55 and is locked so that the adjusting knob 5 cannot be slid to the left. Moreover, at this time, both the on-off valves 21 and 22 are held down by the protrusion 28 of the cam 27, as shown in FIG. 4, and are set in the fully open (high flame) state. When the main operating knob 17 is pushed to the left from this preset state, the upper and lower burners 3 and 4 are ignited with high flame, and at the same time the operating end 62 of the lever reset plate 46 moves to the left side of the lever slide hole 53 and the locking arm 47 As a result, the spring 71 is loosened and the lever lock plate 45 is pulled up horizontally by the elastic force of the tension spring 51, and the fire power switching lever 6 is disengaged from the lock groove 55 and is unlocked as shown in FIG. Ru. Now the firepower switching lever 6
operation becomes possible, and when the adjustment knob 5 is moved to the left (direction A), the firepower switching lever 6 rotates in the direction B, hits the triangular piece 54, and stops at the first stage, and at the same time the cam 27 moves in the direction C. The on-off valve 22 on the lower burner 4 side rises within the recessed part 29 and closes, allowing gas to flow only through the bypass passage 24, resulting in a low flame, and the on-off valve 21 on the upper burner 3 side remains pressed by the protrusion 28. It was completely open and there was a strong fire. In the first stage, if the adjustment knob 5 is returned to the right end, both the upper and lower burners 3 and 4 return to high flame. Furthermore, when the adjustment knob 5 is moved to the left from the first stage and passes the triangular piece 54, the spring 39 of the cam 27 portion passes over the dead center, so the adjustment knob 5 is biased to the left, and the spring 3
9, the adjustment knob 5 is pulled to the left and enters the bag-like cover part 15, and this second
At the third stage, the adjustment knob 5 cannot be operated again.
In this second stage, the on-off valve 22 on the lower burner 4 side is pushed open by the protrusion 28 of the cam 27 and the lower burner 4 becomes a strong flame, and the on-off valve 21 on the upper burner 3 side is opened by the protrusion 28 of the cam 27. The upper burner 3 is extinguished by rising inside and closing. Since the upper burner 3 is extinguished in this way, if the adjustment knob 5 is allowed to be operated again and gas is released from the upper burner 3, there is a risk of gas leakage or a small explosion.
5 prevents the adjustment knob 5 from being operated again. Finally, turn the main control knob 17 clockwise to extinguish the fire, and the lever reset plate 46
The operating end 62 moves to the right, the operating end 62 pushes the thermal power switching lever 6 back to the right, and when the cam 27 hits the stopper 72 of the first base plate 35, the thermal power switching lever 6 stops, and at the same time, the locking lever 6 stops. When the arm 47 is lowered, the lever lock plate 45 is pulled down via the spring 71, and the heating power switching lever 6 is fitted into the locking groove 55, thereby resetting the heating power switching lever 6 to the preset position.

[Effects of the invention] As described above, in the present invention, when the heating power switching lever is positioned approximately in the middle of the slit hole, the on-off valve having the bypass path rises within the recessed part and becomes the closed state, and the bypass valve is closed. The opening/closing valve that does not have a passage is pushed by the protrusion and set to the open state, and the bypass passage is opened with the heating power switching lever positioned between approximately the middle of the slit hole and the bag-like cover part. The opening/closing valve with the bypass passage is pushed by the protrusion and becomes open, and the opening/closing valve without the bypass passage rises within the recess and is set in the closed position. Of course, it is possible to switch and adjust the firepower by making the side with a bypass path a high flame while making the side with a bypass path a high flame, or setting the side with a bypass path as a high flame and the side without a bypass path as a fire extinguisher. A bag-shaped cover part is provided at the end of the slit hole opposite to the preset position to house the adjustment knob and make it impossible to operate it again, and a heat power switching lever is provided at a position between approximately the middle of the slit hole and the bag-shaped cover part. The on-off valve with the bypass passage is pushed by the protrusion, and the on-off valve without the bypass passage is raised within the recessed part, and the adjustment knob is biased toward the inside of the bag-like cover part. Therefore, when the flame is strong on the side with the bypass passage and extinguished on the side without the bypass passage, the adjustment knob is biased toward the inside of the bag-shaped cover.
It does not allow the adjustment knob to be operated again and there is no risk of gas leakage or small explosion. In addition, a preset means is provided to return the thermal power switching lever to the preset position of the slit hole in conjunction with the main operating knob when the gas supply is stopped by operating the main operating knob. By stopping the gas supply, the heating power switching lever can be returned to the preset position of the slit hole by the preset position return means.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a sectional view of the same grill as above, FIG. 3 is a plan view showing the gas flow control device and the cam mechanism that operates the on-off valve of the gas distributor, FIG. 4 is a sectional view of the same gas distributor as above, and FIG. 6 is an exploded perspective view of the preset means of the fire power switching lever, FIG. 7 is an explanatory diagram of the operation of the preset means of the above, and FIG. 8 is a perspective view of the bag-shaped cover part. 1 is the table body, 2 is the grill, 3 is the upper burner, 4 is the lower burner, 5 is the adjustment knob, 6 is the heat selection lever, 7 is the slit hole, 14 is the gas distributor, and 15 is the bag-like cover part. , 17 is the main operation knob;
19 is an upper burner connection port, 20 is a lower burner connection port, 21 is an on-off valve, 22 is an on-off valve, 24 is a bypass path, 27 is a cam, 28 is a protrusion, and 29 is a recessed part.

Claims (1)

[Scope of utility model registration request] A gas that has a grill inside the table body, an upper burner and a lower burner at the upper and lower parts of the grill, and a gas distributor that can distribute and supply gas to the upper and lower burners and adjust the amount of gas distributed. For table stoves, the gas distributor is equipped with a main operation knob for supplying and stopping gas, and on-off valves are provided for the upper burner connection port and the lower burner connection port of the gas distributor, and both on-off valves are installed. The upper end of the on-off valve is inserted into the gas distributor's through hole so as to be slidable up and down, and the upper end of the on-off valve protrudes from the upper surface of the gas distributor.The upper end of the on-off valve is urged upwardly by the spring, and the upper end of the on-off valve and A protrusion for pushing down the on-off valve and a recessed part for protruding the on-off valve upward are provided on the lower surface of the cam, which is rotatably operated by a heating power switching lever installed opposite to the upper burner connection port. Alternatively, provide a bypass path through which the gas for low-heat combustion can flow even when the lower burner connection port is closed with the on-off valve, and make the heating power switching lever protrude from the slit hole in the table body, and then turn the adjustment knob at the end of the heating power switching lever. can be slid along the slit hole, and a bag-like cover part is provided at the end opposite to the preset position of the slit hole to store the adjustment knob and make it impossible to operate it again. The on-off valve having the bypass passage rises within the recess and becomes closed while the on-off valve having no bypass passage is pushed by the protrusion and set to the open state; With the heating power switching lever positioned at a position between approximately the middle of the slit hole and the bag-like cover part, the on-off valve having the bypass passage is pushed by the protrusion and becomes open, and the valve having the bypass passage is opened. The opening/closing valve that does not have a bypass is raised within the recess and is set to the closed state, and the heating power switching lever is positioned between approximately the middle of this slit hole and the bag-shaped cover part to open/close the valve that has a bypass path. With the valve being pushed by the protrusion and the opening/closing valve that does not have a bypass passage raised within the recess, the adjustment knob is biased toward the inside of the bag-shaped cover, and the main operation knob is operated to release the gas. This gas table stove is provided with a preset means for returning a heating power switching lever to a preset position in a slit hole in conjunction with a main operation knob when supply is stopped.