JPH0431491Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application and overview of the invention] The present invention relates to a safety device for a gas bath kettle, particularly when the operation part thereof is a piano touch type. In order to prevent any inconvenience caused by erroneously operating the operating section, other operations cannot be performed unless the ignition state is secured by the ignition operation.

[Prior art and its problems] In conventional bathtubs, especially balance-type bathtubs that are installed near the bathtub, the operating parts are centrally arranged on one side of the top surface of the appliance. The operating section is a rotary operating knob.

In this conventional device, the operating section is centrally arranged on the top surface of the vessel, and this operating knob is rotary, so the gas switch and hot water circuit switching device driven by the operating section are operated. It is simple, these devices can be centrally arranged, and the entire device can be made smaller.

However, this conventional example has insufficient operability. Therefore, in order to improve this operability, it is conceivable to make the operation section a piano touch type. This improvement proposal adopts, for example, a mechanism in which the operation part is a lever type, and the ignition device linked to each lever, the corresponding gas circuit opening/closing device, water circuit opening/closing device, etc. are operated by linear motion. .

In the case of this improved proposal, the desired operation can be performed simply by pushing the operating lever corresponding to each operation, and the operability is improved compared to the rotary operation type. However, since this device has good operability, if other operating parts, such as the reheating operating part, are operated prior to the ignition operation, there is the inconvenience that explosive ignition occurs during the ignition operation, which is dangerous. be.

This is because when you operate the reheating operation part, the gas circuit to the bath burner is open.
This is because if the ignition operation is performed in this state, a large amount of raw gas spewed out from the bath pot burner will be instantaneously ignited during the ignition operation.

[Technical Issues] The present invention is based on the above-mentioned method.
In order to prevent explosive ignition operation due to erroneous operation, the ignition lever is placed in the state where the pilot burner is lit in order to prevent explosive ignition operation due to erroneous operation. The technical problem is to make it impossible to operate the reheating lever unless it is set.

[Technical Means] The technical means of the present invention taken to solve the above technical problem is ``The ignition lever 1 is installed at the upper part of the front edge of the vessel.
and a reheating lever 5 are arranged in parallel, the ignition lever 1 is interlocked with an ignition device that is activated by pushing the ignition lever 1 a certain stroke, and the reheating lever 5 is operated by pushing the ignition lever 5 a certain stroke. The valve is in an open state and is linked to the bath pot valve 51 inserted into the gas circuit to the bath burner 50, and the operation directions of each of the levers are set in the same direction, and the direction that intersects with the moving direction of each of the levers. A cam body 8 is provided in the posture shown in FIG. The first cam plate 81 is provided with a second cam body 82 that engages with the reheating lever 5, and the ignition lever 1 is set on the first cam plate 81 at a position corresponding to the ignition state of the pilot burner 12. a first engaging portion that can engage with the ignition lever to prevent movement of the ignition lever; and a first engaging portion that moves the cam body 8 in a direction opposite to its biasing direction by means of a pair at the initial stage of operation with the ignition lever 1. Slope side 84
The other second cam plate 82 is provided with a second engaging portion that prevents the reheating lever 5 from being operated at its initial position, and a second inclined side 8 that follows this is provided.
7 is provided, and the engagement between the second engaging portion and the reheating lever 5 is released due to the pairing of the ignition lever 1 and the first inclined side 84, and the reheating lever 5 and the second inclined side 87 are disengaged from each other.
The pairing between the first and second inclined sides and each lever moves the cam body 8 so that the first engaging portion of the first cam plate 82 engages with the ignition lever 1 in the set position. ``The relationship has been set to a predetermined relationship.''

[Operation] The above technical means of the present invention operates as follows.

In the initial state, both the ignition lever 1 and the reheating lever 5 are at the initial position. In this state, the ignition lever 1 is not engaged with the first cam plate 81, and the ignition operation is possible. The other reheating lever 5 is engaged with a second engaging portion formed on the second cam plate 82 of the cam body 8, and this reheating lever cannot be operated.

In this state, when the ignition operation is performed, the pilot burner 12 is ignited by the action of the ignition device interlocked with the ignition operation, and when the operating force on the ignition lever 1 is released, the ignition lever is maintained at the set position. In conjunction with the operation of the ignition lever 1 at this time, the cam body 8 is moved in the opposite direction to the biasing direction by the pair of the first inclined side 84 and the ignition lever 1. The second engagement portion of the cam plate 82 and the reheating lever are disengaged, and the reheating lever can be operated.

In this state, if you operate the reheating lever 5,
The bath valve 51 linked with this is opened, and the gas circuit to the bath burner 50 is connected to the pilot burner 1.
The flame is transferred from 2 to the bath burner 50, and this bath burner enters a combustion state. In other words, it becomes a reheating state.

In this reheating state, since the reheating lever 5 is in the set position, the first cam plate 8
The first engaging portion of the ignition lever 1 engages with the ignition lever 1, and the movement of this lever is prevented.

Next, when the reheating lever 5 is returned to the initial position, the cam body 8 moves toward the initial position due to the biasing force acting on it, and the first engagement portion of the first cam plate 81 and the ignition lever 1 are connected. The engagement is disengaged, and the ignition lever can return to its initial position. In this state, the reheating lever 5 can be operated as needed, and reheating can be performed at will.When the appliance stops operating, the cam body 8 can also be returned to its initial position by returning the ignition lever to its initial position. , and the second engaging portion of the second cam plate 82 blocks the operation of the reheating lever 5 and enters the state.

[Effects] Since the present invention has the above configuration, it has the following unique effects.

Since the reheating operation cannot be performed unless the pilot burner 12 is brought into the ignited state by the ignition operation, there is no risk of explosion and ignition due to the ignition operation being performed after the reheating operation.

Furthermore, when stopping the operation of the appliance, the reheating lever 5 must be returned to the initial position, so forgetting to return the reheating lever 5 and returning only the ignition lever 1 to the initial position. This prevents the inconvenience of causing the machine to stop operating.

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 8.

This example was implemented in a bathtub equipped with a balance type water heater, as shown in Figs. 6 and 7.
The operating levers include an ignition lever 1, a hot water supply lever 4 that is operated mainly when using the shower, and a reheating lever 5 that puts the bathtub into operation.

Each of these levers is as shown in Figure 8.
The ignition lever 1 is linked to a thermocouple pilot safety valve 10 which functions as a main valve, and a pilot valve 13 inserted into the gas circuit to the pilot burner 12. When the pilot fire safety valve 10 and pilot valve 13 are opened,
A water pressure responsive gas valve 4 inserted into the gas circuit to the pilot burner 12 and the gas circuit to the hot water supply gas burner 40
Connects gas circuits up to 1. The hot water supply lever 4 is
Shower head S removably locked to body A
The other reheating lever 5 is linked with a shower valve 42 inserted in the hot water supply circuit to the bath gas burner 50, and the other reheating lever 5 is linked to a bath valve 51 having the same configuration as a thermocouple pilot flame safety device inserted in the gas circuit to the gas burner 50 for the bath. do.

Each of the above-mentioned levers is interlocked with a corresponding valve via an output shaft D, and this output shaft D is always subjected to a biasing force in the return direction and is equipped with a double-knock mechanism K. As a result, when the input side of the output shaft D is pushed in by the opposing lever, the output side is pushed in the same direction, but when the pushing force acting on the output shaft D is released, the output shaft D returns to a constant stroke. At the set position, further return movement is prevented by the double-knock mechanism K, and when the output shaft D is pushed in by the second lever operation, the state of preventing return movement by the double-knock mechanism K is released and the pushing force is released. The output shaft D is returned to its initial position, and the operating lever is also returned to its initial position.

Each operating lever is returned to its initial position by the return biasing force applied to the output shaft D, and when the output shaft D is maintained at the set position by the double-knock mechanism K. , each operating lever is also maintained at the set position.
Therefore, it is possible to determine which state of use the device is in depending on the position of each operating lever.

Next, the output side of each of the above output shafts D faces the valve body of the valve device, and the output side of the output shaft D that interlocks with the ignition lever 1 is connected to the valve body 14 of the pilot flame safety valve 10 and the reheating lever 5. The output side of the interlocking output shaft D is connected to the valve body 52 of the bath valve 51, and then to the hot water supply lever 4.
The output side of the output shaft D that is linked to the shower valve 4
The two valve bodies 43 are opposed to each other. Of these, the valve body 14 and the valve body 52 are thermocouple-type solenoid valve bodies, so they automatically return to the closed state when the flame of the pilot burner 12 disappears. In the set position D, the output side end has returned to a position where it does not prevent the opposing valve bodies from closing. Therefore, even if the valve body 14 and the valve body 52 are opened and each output shaft D is maintained at the set position, when the pilot burner 12 is extinguished, the output shafts D are automatically closed regardless of the position thereof. speak.

Incidentally, on the output side of the output shaft D that is linked to the ignition lever 1, a protrusion 62 for closing a switch 61 inserted into an electric circuit to an igniter 6 as an ignition device is provided. The protrusion 62 closes the switch 61 at the position where it is pushed in the most (the position where it is pushed further than the set position).

In the above embodiment, when the ignition lever 1 is pushed in, the valve body 14 is opened and the pilot valve 13 is opened, and at the same time, the switch 61 is closed, the igniter 6 is put into operation, and the pilot burner is turned on. It will be lit at 12. When this state is maintained for a certain period of time, the thermoelectromotive force maintains the valve body 14 in the open state. In this state, the hydraulic responsive gas valve 4
Since the gas circuits to 1 and 1 are interlocked, the action of this hydraulically responsive gas valve 41 causes the shower valve 42 to
When the valve is opened, the hot water supply gas burner 40 is automatically turned on.
The circuit to is connected, and the flame is transferred from the pilot burner 12 to the gas burner 40 for hot water supply, resulting in a hot water supply state. That is, when the hot water supply lever 4 is pushed in and moved to the set position, hot water is spouted from the shower head S.

Separately from the above, when the reheating lever 5 is pushed down, the bath valve 51 is opened, the gas circuit to the gas burner 50 is linked, the flame is transferred from the pilot burner 12 to the gas burner 50, and the inside of the bathtub is reheated. . A switch 55 inserted into a thermocouple circuit of a thermocouple electromagnetic valve having a valve body 52 is linked to the output shaft D that is linked to the reheating lever 5, and the output shaft D is moved further from the set position. The switch is closed when the switch is pushed in. Therefore, if the output shaft D is pushed in by the reheating lever 5 when the pilot burner 12 is already in the ignited state, the above state will be maintained.

Next, the configuration near each operating lever will be explained.

As described above, according to this embodiment, the desired operation proceeds by operating each operating lever, but these operating levers are connected to the ignition lever 1 as shown in FIGS. 6 and 7. A reheating lever 5 is attached to an operation panel 71 arranged on the front edge of the lid plate 7 on the top surface of the vessel A, and a shower head S is installed between the reheating lever 5 and the hot water supply lever 4. A locking tool 72 for locking is provided.

As shown in FIGS. 4 and 5, the operating knob 11 of the ignition lever 1, the operating knob 53 of the reheating lever 5, and the operating knob 44 of the hot water supply lever 4 are all set to have the same cross-sectional shape, and the front edge has a hanging piece. is formed. The ignition lever 1 is equipped with a lock pawl 2, and the front edge of the hanging piece of the operating knob 11 and the front edge of the lock pawl 2 are made to coincide. The hanging pieces of each operating knob hang down so as to wrap around the front edge of the cover plate 7 which serves as a holding part for these operating levers, and the front wall of the cover plate 7 facing the hanging piece of the operating knob 11 functions as the fixed wall 3. The protrusions formed on the fixed wall 3 function as the engaging portions 31. For this reason, the position of the protrusion is set lower than the rear end of the lock pawl 2 of the operation knob 11 in the initial state.
When the lock pawl 2 is pushed in, the rear end of the lock pawl 2 advances above the convex strip serving as the engaging portion 31 and locks the lock pawl 2.
The downward movement of the robot is blocked.

Next, an interlock mechanism is interposed between the ignition lever 1 and the reheating lever 5.
This mechanism is constructed as shown in FIGS. 1 to 3, and is mounted on the cover plate 7 as shown in FIGS. 4 and 5.

This mechanism includes a first cam plate 81 and a second cam plate 8
2, and a spring 83 that biases the cam body 8 in one direction. , the first cam body 81 is supported in the first slit 16 opened near the operating knob 11 of the ignition lever 1, and the second cam plate 82 is supported in the reheating lever 5.
It is fitted into a second slit 54 opened near the operating knob 53.

The side edge of the first cam plate 81 in the direction biased by the spring 83 includes a first inclined edge 84 formed at the upper part and facing one end edge of the first slit 16, and a downwardly extending side thereof. A notch 86 is formed on the opposite side of the side 85 into which the other edge of the first slit 16 can fit. This notch functions as the first engaging portion described above.

On one side of the other second cam plate 82, a second slanted side 87 is formed at the top, similar to the first cam plate 81, and the upper end of this second slanted side 87 is connected to the second cam plate 82 described above. This stepped portion 88 serves as an engaging portion, and in the initial state of the reheating lever 5, this stepped portion 88 comes into contact with the outer part of one edge of the second slit 54. To explain the operation of the interlock mechanism, when the ignition lever 1 and the reheating lever 5 are in the initial state, the first slit 16 and the second slit 54 are connected to the first cam plate 81 as shown in FIG.
and located at the upper end of the second cam plate 82. In this state, the edge of the first slit 16 is treated as the first inclined side 84, so the ignition lever 1 can be moved downward, but the other reheating lever 5 has a step near the second slit 54. 88 and is in a state where the downward movement of this reheating lever 5 is blocked. Therefore, inconveniences caused by operating the ignition lever 1 after the reheating lever 5 is operated can be prevented.

When the ignition lever 1 is operated and lowered to the set position, the cam body 8 is moved horizontally against the spring 83 by the action of the first inclined side 84, as shown in FIG. The step portion 88 following the upper end of the side 87 moves downward within the second slit 54. This allows the reheating lever 5 to be moved downward, and when the reheating lever 5 is pushed into the set position in this state, the edge of the second slit 54 and the second inclined side 87 come into contact with each other, causing the cam body 8 is further horizontally moved in the same direction from the above position to the third position.
As shown in the figure, the notch 86 of the first cam body 81 fits into the edge of the first slit 16 in the set position. This prevents the ignition lever 1 from returning to its original position. Therefore, the reheating lever 5 is returned to its initial position and the bath valve 51 is
Unless the valve is closed, the ignition lever 1 cannot be returned to its initial position. This prevents the inconvenience of accidentally operating the ignition lever 1 while the bath valve 51 is held open during reuse.

In addition, in the above operation, each lever is linked with a double knock mechanism, so both the ignition lever 1 and the reheating lever 5 are moved from the most pushed position to the position where they are returned to a certain stroke (when the pushing force is released). position) is the above-mentioned set position. Therefore, when the ignition lever 1 is pushed in the most, the ignition device continues to ignite, and when the pushing force is released in this state, the ignition lever returns to the set position and the ignition device stops operating. do.

For this reason, in this embodiment, an ignition confirmation device (not shown) is added, and when operating the ignition, the ignition confirmation device confirms that the pilot burner is ignited, and then the operating force of the ignition lever is released. becomes.

[Brief explanation of the drawing]

Figures 1 to 3 are operational explanatory diagrams of the main parts of the present invention;
Figures 4 and 5 are explanatory diagrams of the operation of the ignition lever 1, Figure 6 is a partially cutaway front view of a bathtub with a water heater incorporating the device of the embodiment of the present invention, and Figure 7 is a partially cutaway side view thereof. Figure 8 is an explanatory diagram of the gas circuit,
In the figure, 1... lever, 11... operating knob, 2... lock claw, 21... operating section, A... body, 3... fixed wall, 31... engaging part.

Claims (1)

[Scope of utility model registration request] In a bath kettle of the type in which automatic ignition progresses by pushing in the ignition lever for ignition operation, and the desired state of use is achieved by pushing in the reheating lever for reheating, the top of the front edge of the vessel is An ignition lever 1 and a reheating lever 5 are arranged side by side in the ignition lever 1, and the ignition lever 1 is interlocked with an ignition device that is activated by pushing the ignition lever 1 with a certain stroke,
When the reheating lever 5 is pushed in a certain stroke, the valve is opened and the bath burner 5 is opened.
The cam body 8 is interlocked with a bath valve 51 inserted in a gas circuit to 0, the operating direction of each lever is set in the same direction, and the cam body 8 is provided in a posture that intersects with the moving direction of each lever, The moving direction of this cam body 8 is set to the above-mentioned intersecting direction, and the cam body 8 is biased in one direction along the moving direction.
The first cam plate 81 is provided with a first cam plate 81 that engages with the ignition lever 1 and a second cam plate 82 that engages with the reheating lever 5, and the first cam plate 81 is provided with the ignition lever 1 when the pilot burner 12 is ignited. The first engaging portion engages with the ignition lever so as to prevent the movement of the ignition lever when the ignition lever is set at a position corresponding to is provided with a first inclined side 84 that moves in the opposite direction, and the other second cam body 82 is provided with a second engaging portion that prevents the reheating lever 5 from being operated at its initial position. A side 87 is provided, and the engagement between the second engaging portion and the reheating lever 5 is released due to the meeting between the ignition lever 1 and the first inclined side 84, and the reheating lever 5 and the second inclined side 8 are disengaged.
7, so that the cam body 8 moves so that the first engaging portion of the first cam plate 82 engages with the ignition lever 1 in the set position. A lever-operated bathtub with a predetermined pairwise relationship.