JP5808185B2 - Gas stove - Google Patents

Description

  The present invention relates to a burner disposed in an opening of a top plate provided on the top of a stove body, a use position in which the burner projects upward from the top plate, and the same height as the top plate. Elevating means that elevates and lowers through the opening at a storage position retracted below the plate, and the elevating means converts the actuator and the output of the actuator to elevate the burner. The present invention relates to a gas stove that includes a connecting mechanism that connects to the burner.

  Such a gas stove is configured as a burner lifting type in which the burner is raised and lowered by a lifting means to a use position and a storage position. In this state, the cleanability and aesthetics of the top board and the like are improved.

Conventionally, in such a gas stove, the entire lifting means, that is, the entire actuator and connecting mechanism are provided directly below the burner (see, for example, Patent Document 1).
Incidentally, in Patent Document 1, the coupling mechanism is, for example, a cam body that is driven to rotate around a horizontal axis, and a linear motion in the vertical direction in contact with the outer peripheral surface of the rotating cam body that is attached to the bottom of the burner. The actuator is constituted by an electric motor that rotationally drives the cam body.
In this case, as the cam body is rotationally driven by the electric motor, the contact that contacts the outer peripheral surface of the cam body linearly moves in the vertical direction, and the burner is moved up and down between the use position and the storage position. .

JP 2003-247724 A

However, in the conventional gas stove, the entire lifting means is provided below the burner. Therefore, in the stove body, the actuator and the coupling mechanism are connected to each other below the space occupied by the burner at the storage position. It is necessary to set the dimensions of the stove body so as to secure the installation space. Therefore, there has been a problem that the size of the stove body in the vertical direction, that is, the thickness is increased, and consequently the thickness of the gas stove is increased.
In particular, the built-in type gas stove has a limited thickness, and thus it has been difficult to apply such a burner lifting type to the built-in type gas stove.

  This invention is made | formed in view of this situation, The objective is to provide the burner raising / lowering type gas stove which can aim at thickness reduction.

The gas stove of the present invention has a burner disposed at the opening of the top plate provided on the top of the stove main body, a use position where the burner protrudes above the top plate, and the height of the top plate or And a lifting means that lifts and lowers through the opening at a storage position that is retracted below the top plate, and the lifting means converts the actuator and the output of the actuator to raise and lower the burner, It is configured with a coupling mechanism that couples an actuator to the burner,
In the first characteristic configuration, the input side coupling portion coupled to the actuator in the coupling mechanism is located laterally of the burner in the horizontal direction, and is located within the ascending / descending range of the burner in the vertical direction. In such a state, the actuator and the coupling mechanism are disposed in the stove body ,
A burner unit that includes the burner and that can be detachably mounted in a predetermined relative positional relationship with the burner in a state where the upper part of the virtues is higher than the upper part of the burner is configured,
The elevating means raises and lowers the burner unit so that the upper part of the virtues protrudes upward from the top plate at the use position and the entire burner unit retracts below the top plate at the storage position. Configured to
When the burner unit is located at the storage position, a lid capable of closing the opening of the top plate is provided,
The opening is constituted by an opening forming cylinder provided in a suspended state on the top plate,
The burner unit is configured by integrally assembling the burner at the upper end of a cylindrical burner support that is movable in the axial direction in the opening forming cylinder,
The raising / lowering means is configured so that the burner unit is raised and lowered through the opening forming cylinder .

According to the above characteristic configuration, the actuator and the coupling mechanism are disposed in the stove body in such a form that the actuator is located on the lateral side of the burner and the coupling mechanism is located between the actuator and the burner arranged in the lateral direction. It becomes possible.
That is, in the stove body, it is not necessary to secure any space for installing the actuator below the space occupied by the burner at the storage position, and it is not necessary to secure any space for installing the coupling mechanism. Alternatively, it is sufficient to secure a space for installing a portion of the coupling mechanism that overlaps with the burner in the horizontal direction, so that the thickness of the stove body can be reduced.
Therefore, it is possible to provide a burner elevating gas stove that can be thinned and can be applied to a built-in type.
Moreover, according to the said characteristic structure, a burner unit can be raised / lowered to a use position and a storage position in the state which mounted | wore the burner unit with five virtues.
And when the burner unit is raised to the use position, the virtues are attached to the burner unit in a predetermined relative positional relationship with the burner, so a heating container such as a pan is placed on the virtues and the burner is used. Can be used and is easy to use.
Moreover, when the burner unit is lowered to the storage position, the entire burner unit is retracted below the top plate, and the opening of the top plate can be closed with a lid, so that cleaning and aesthetics are further improved. improves.
Therefore, in addition to cleanability and aesthetics, the gas stove can be made thinner while improving usability.
Moreover, according to the said characteristic structure, since a burner unit is raised / lowered through the opening part formation cylinder by an raising / lowering means, the rolling of a burner unit when a burner unit raises / lowers can be suppressed.
Therefore, the burner can be moved up and down stably in a state where rolling is suppressed.

In addition to the first feature configuration, the second feature configuration is
The connecting mechanism bends in a V shape at an angle of 90 degrees or more at the fulcrum, and one of the two rod-shaped portions extending from the fulcrum serves as an input side arm and the other serves as an output side arm. Is provided with a swing link that is swingably supported around a horizontal swing axis at
The swing link is in a state in which the free end portion of the input side arm portion is positioned laterally of the burner in the horizontal direction and in the vertical range of the burner in the vertical direction. The free end portion of the output side arm portion is arranged in a posture facing the burner side,
The free end portion of the input side arm portion is linked to the actuator via the input side connecting portion, and the free end portion of the output side arm portion is linked to the burner.

According to the above characteristic configuration, when an actuator applies a force to the free end portion of the input side arm portion via the input side connecting portion, and the swing link swings around the horizontal swing axis, the output Since the free end portion of the side arm portion moves in the vertical direction, the burner linked to the free end portion is raised and lowered.
The output-side arm portion of the swing link that is linked to the burner can be made into an elongated arm shape so that the vertical dimension can be made as small as possible, and the free end of the output-side arm portion of the swing link can be connected to the burner. In the interlocking connection, the output side arm portion can be interlocked in a form that does not protrude below the burner, or in a form in which protrusion is suppressed as much as possible. This makes it possible to further reduce the space required below the space occupied by the burner in the stove position in the stove body.
In other words, it is possible to widen the range of raising and lowering the burner while sufficiently thinning the stove body, so that the burner can be used properly with the burner protruding sufficiently from the top plate at the use position. In the storage position, for example, the entire burner can be positioned below the top plate. And since the cover body which closes the opening part of a top plate can be provided in the state which located the burner in the accommodation position, cleaning property and aesthetics can be improved further.
Therefore, it is possible to reduce the thickness of the gas stove while further improving the cleanability and aesthetics.

The third feature configuration is in addition to the second feature configuration,
When the swing link is swung so that the free end portion of the input side arm portion is positioned above the fulcrum and the burner is positioned at the storage position, the output side arm portion The free end portion is arranged so as to be in a state of being at the same height as the fulcrum or above the fulcrum.

According to the above characteristic configuration, the output side arm from below the burner even when the free end of the output side arm portion is interlocked with the burner in a state where the output side arm portion of the swing link protrudes below the burner. Since the amount of protrusion of the portion can be made as small as possible, the space required below the space occupied by the burner at the storage position in the stove body can be further reduced.
Accordingly, the range of raising and lowering of the burner can be widened while sufficiently reducing the thickness of the stove body, so that the cleaning property and the aesthetics are further improved in the same manner as described for the second characteristic configuration. The gas stove can be made thinner.

In addition to the second or third feature configuration, the fourth feature configuration is
The burner is provided in a state supported by the guide means so as to be movable in the vertical direction,
One end is pivotally supported on the free end of the output side arm by a pivot axis along the horizontal direction, and the other end is pivotally supported on the burner side by a pivot axis along the horizontal direction. In the link, the free end portion of the output side arm portion and the burner are connected.

That is, when the swing link swings around the horizontal swing axis, the free end of the output side arm portion moves up and down along an arcuate locus, but the free end portion of the output side arm portion and the burner are moved. Are connected by connecting links that are pivotally supported by pivot axes that extend in the horizontal direction, and the movement of the free end of the output side arm is allowed to guide the burner. Can be moved up and down along the vertical direction.
Then, by raising and lowering the burner along the vertical direction with the guidance of the guide means, the opposed state of the bottom of the burner and the bottom of the stove body is maintained in a parallel state. Since the vertical space occupied by the burner moving up and down can be made as small as possible, the raising and lowering range of the burner can be widened while avoiding the thickness of the stove body.
Therefore, the gas stove can be made thinner while further improving the cleaning property and the aesthetics as described for the second characteristic configuration.

Perspective view showing the appearance of gas stove The perspective view of the gas stove principal part which shows the cover body which blocks the opening part of a top plate Top view of burner set A perspective view of the burner set in a state where the burner is located at the storage position Perspective view of the burner set with the burner in the use position Sectional view in the VI-VI direction of FIG. The perspective view of the principal part of the burner set which shows the arrangement | positioning state of an opening formation cylinder The perspective view of the principal part of the burner set which shows the arrangement | positioning state of a cylindrical burner mounting base The perspective view of the principal part of the burner set which shows the arrangement | positioning state of a cylindrical burner support body Vertical right side view of the main part of the burner set with the burner in the stowed position Vertical right side view of the main part of the burner set with the burner in the working position The figure explaining the sealing action of the sealing material accompanying the rise of a burner Sectional view in the XIII-XIII direction of FIG. The figure explaining the engagement state of the engagement bolt and engagement hole accompanying the descent of a burner

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the gas stove according to this embodiment is applied to a built-in type, and has three openings arranged in the left-right direction on a top plate 2 provided on the upper portion of a rectangular box-like stove body 1. A portion 3 is provided, and a burner 4 is disposed in each opening 3, and corresponding to each burner 4, five virtues 5 on which a heating container (a pan or the like) is placed are provided. Further, a grill (not shown) is provided inside the stove main body 1, and a grill exhaust port 6 for exhausting exhaust gas from the grill is also provided on the rear side portion of the top plate 2.
Although not shown, a controller for controlling the operation of the gas stove and an operation unit for instructing the controller of commands to the burners 4 such as an ignition command and a fire extinguishing command are also provided.

As will be described in detail later, corresponding to each burner 4, lifting means E that moves up and down through the opening 3 to a use position where the burner 4 protrudes above the top plate 2 and a storage position where the burner 4 is retracted below the top plate 2. (For example, see FIG. 4 and FIG. 5 etc.) And, when the burner 4 is located at the use position, it is annular and elastic to prevent foreign matter from entering the stove body 1 through the opening 3 of the top plate 2. The sealing material 7 which has (for example, refer FIG. 6, FIG. 10-12 etc.) is provided.
As shown in FIGS. 4 and 5 and FIGS. 10 and 11, in this embodiment, the burner 4 is provided, and the five virtues 5 are predetermined with the burner 4 in a state where the upper part is higher than the upper part of the burner 4. A burner unit B that can be detachably mounted in a relative positional relationship is provided.
As will be described in detail later, the elevating means E is configured such that the virtues 5 protrude above the top plate 2 at the use position (see FIGS. 5 and 11), and the burner unit B at the storage position (see FIGS. 4 and 10). Is configured to move the burner unit B up and down so that the whole is retracted below the top plate 2.

As shown in FIG. 2, corresponding to each opening 3 of the top plate 2, there is provided a lid 8 that can close the opening 3 of the top plate 2 when the burner unit B is located at the storage position. It has been.
As shown in FIG. 2A, in the state where the lid 8 is attached to the opening 3, the surface of the lid 8 is configured so as to form substantially the same plane as the top surface of the top plate 2, so And the improvement of the cleaning property of the top plate 2 is achieved.
When the burner 4 is used, the lid 8 is removed from the opening 3 as shown in FIG. 2 (b), and the burner 4 is used by the lifting means E as shown in FIG. 2 (c). Will be raised.

  As shown in FIGS. 3 to 5, the burner 4, the elevating means E, and other members (details will be described later) attached to the burner 4 are integrally assembled on the base plate 9, and the burner set S is formed. The three burner sets S are provided in the stove body 1.

As shown in FIGS. 4, 5, 10 and 11, the burner 4 includes a burner body 4b having a large number of flame holes 4a on the outer peripheral portion, and a mixture of gas fuel and combustion air in the burner body 4b. The mixing nozzle 4c for supplying gas is integrally provided, and the gas nozzle 10 for supplying the gas fuel to the receiving port 4d of the mixing pipe 4c is moved up and down integrally with the burner unit B. It is attached to the burner unit B via the base 11.
The burner 4 includes a pan bottom temperature sensor 12 that contacts the bottom of the heating container placed on the virtues 5 to detect the temperature of the heating container, an igniter (not shown) that ignites the burner 4, and a burner The flame sensor (illustration omitted) which detects combustion of 4 is attached.

As shown in FIGS. 3 to 5, the gas pipe connection portion 13 and the gas nozzle 10 to which gas fuel such as city gas is supplied through a gas pipe (not shown) are used for raising and lowering the fixed supply path 14 and the gas nozzle 10. It is connected by a driven supply path 15 that moves following.
The fixed supply path 14 is provided with a fuel supply intermittent valve 16 that intermittently supplies gas fuel to the gas nozzle 10 and a fuel supply amount adjustment valve 17 that adjusts the supply amount of gas fuel to the gas nozzle 10.
The driven supply path 15 includes a first rotary joint 18 connected to the downstream end of the fixed supply path 14, and a first connection pipe having an upstream end connected to the downstream end of the fixed supply path 14 via the first rotary joint 18. 19, a second connection pipe 22 having an upstream end connected to the downstream end of the first connection pipe 19 via the second rotary joint 20 and a downstream end connected to a third rotary joint 21 attached to the nozzle base 11. And it comprises a third connecting pipe 23 whose upstream end is connected to the third rotary joint 21 and whose downstream end is connected to the gas nozzle 10.

The upstream end of the first connection pipe 19 is connected to the downstream end of the fixed supply path 14 via the first rotary joint 18 so as to be rotatable around a horizontal axis. The upstream end of the second connection pipe 22 is connected to the downstream end of the first connection pipe 19 via the second rotary joint 20 so as to be rotatable around a horizontal axis, and is downstream of the second connection pipe 22. The end is connected to the upstream end of the third connection pipe 23 via the third rotary joint 21 so as to be rotatable around a horizontal axis.
That is, the gas nozzle 10 is integrated with the burner unit B in a state where the position of the upstream end of the first connection pipe 19 is fixed by the action of the first, second and third rotary joints 18, 20, 21. The burner unit B can be lifted and lowered in a state where the relative positional relationship between the receiving port 4d of the mixing tube 4c and the gas nozzle 10 is maintained at a predetermined level.
Gas fuel supplied through the fixed supply path 14 and the driven supply path 15 is ejected to the receiving port 4d by the gas nozzle 10, and combustion air is sucked to the receiving port 4d by the suction action accompanying the ejection, An air-fuel mixture of gaseous fuel and combustion air is supplied to the burner body 4b through the mixing pipe 4c.

  Along with the burner unit B and the elevating means E, the gas pipe connecting portion 13, the fixed supply passage 14, the driven supply passage 15, the fuel supply intermittent valve 16, the fuel supply amount adjusting valve 17, and the like are integrally provided on the base plate 9 as incidental members. The burner set S is constructed by assembling.

Next, a description will be given of a configuration in which the burner 4 is moved up and down by the lifting means E.
The raising / lowering means E is demonstrated based on FIG.4, FIG.5, FIGS.7-11.
The elevating means E is configured to include an electric motor 24 as an actuator and a connection mechanism C that connects the electric motor 24 to the burner 4 in a form that converts the output of the electric motor 24 to raise and lower the burner 4. Yes.
And in this invention, the input side connection part Ci connected with the electric motor 24 in the connection mechanism C is located in the horizontal side of the burner 4 in a horizontal direction, and the raising / lowering range of the burner 4 in a vertical direction ( 10 and 11, the electric motor 24 and the coupling mechanism C are disposed in the stove main body 1 in a state of being located within a range indicated by R).

  In this embodiment, the coupling mechanism C bends in a V shape at an angle of 90 degrees or more (in this embodiment, about 105 degrees) at the fulcrum 25Z, and inputs one of the two rod-shaped portions extending from the fulcrum 25Z. The side arm portion 25X and the other side as the output side arm portion 25Y are provided with a swing link 25 that is swingably supported around a swing shaft center A1 in the horizontal direction at a fulcrum 25Z. By the way, the V shape is a shape in which the angle between the input side arm portion 25X and the output side arm portion 25Y is 90 degrees or more and smaller than 180 degrees, and the bent portion is rounded. Including.

  In other words, in the state where the pair of swing links 25 are arranged to face each other with a space in the direction parallel to the swing axis A1, the intermediate portion of the input side arm portion 25X and the intermediate portion of the output side arm portion 25Y. Each part is connected by rod-like connecting bodies 27 and 28 to form a swing link pair L. Further, the pivot shaft 26 is rotatable at both ends around a pivot axis A2 parallel to the pivot axis A1 to the free end 25Xt of the input arm 25X in each of the pair of swing links 25. It is provided in a state where it is pivotally supported by.

A pair of columnar shaft supports 29 are disposed on the lateral side of the burner 4 at the bottom of the stove body 1 in an inclined posture with the upper end facing away from the burner 4 side. It is erected side by side in a direction parallel to
The swing link pair L is such that the free end portion 25Yt of the output side arm portion 25Y is located on the burner 4 side with respect to the fulcrum 25Z of the swing link 25 and the free end portion 25Xt of the input side arm portion 25X is the burner. It is pivotally supported by the lower end part of a pair of shaft support body 29 by the fulcrum 25Z of each rocking | fluctuation link 25 in the attitude | position located on the opposite side to 4 side. That is, the pair of swing links 25 are supported by the fulcrum 25Z positioned at the bottom of the stove body 1 so as to be swingable integrally around the horizontal swing axis A1.

The input side connecting portion Ci is a pivot that connects the screw shaft 31 connected to the output shaft (not shown) of the electric motor 24 and the free end portions 25Xt of the input side arm portion 25X in each of the pair of swing links 25. The ball screw 30 includes a nut 32 attached to the support shaft body 26.
The electric motor 24 has a horizontal orientation parallel to the swing axis A <b> 1 of the swing link 25 at the upper end of the pair of shaft support members 29 in a posture in which the screw shaft 31 connected to the output shaft faces the burner 4 side. Is pivotally supported around a swing axis A3 in the direction.

A nut 32 is screwed onto a screw shaft 31 that is rotated forward and backward by the electric motor 24, and the nut 32 pivotally connects the free end portions 25 </ b> Xt of the input side arm portion 25 </ b> X in each of the pair of swing links 25. Fixed to the shaft body 26, the electric motor 24 and the free end portion 25 </ b> Xt of the input side arm portion 25 </ b> X in each of the pair of swing links 25 are connected by the ball screw 30.
Further, the free end portions 25Yt of the output side arm portion 25Y in each of the pair of swing links 25 are linked and connected to the burner 4.
Then, when the screw shaft 31 is rotated forward and backward by the electric motor 24 and the position of the nut 32 in the axial direction with respect to the screw shaft 31 is changed, the pair of swing links 25 are moved in the horizontal direction at the fulcrum 25Z. The free end 25Yt of the output side arm 25Y in each of the pair of swing links 25 moves in the vertical direction by swinging around the dynamic axis A1, and the free end of the pair of output side arm 25Y. The burner 4 interlocked with the portion 25Yt is moved up and down.
Thus, when the pair of swing links 25 swings around the swing axis A1 in the horizontal direction at the fulcrum 25Z, the position of the free end portion 25Xt of the input side arm portion 25X in each of the pair of swing links 25 is up and down. The electric motor 24 swings around the horizontal swing axis A3 following the change.

As described above, the electric motor 24 and the free end portion 25Xt of the input side arm portion 25X in each of the pair of swing links 25 are connected by the ball screw 30, and the output side arm portion 25Y in each of the pair of swing links 25. The free end portion 25Yt is linked to the burner 4, and the pair of swing links 25 are swung around the swing center A1 in the horizontal direction at the fulcrum 25Z by the electric motor 24, so that the burner 4 is moved to the use position. In raising and lowering to the storage position, the relative arrangement relationship of the burner 4, the pair of swing links 25 and the electric motor 24 in the stove body 1, the raising / lowering range R of the burner 4, and the following conditions are satisfied: The shape of the pair of swing links 25 is set.
That is, a condition (see FIGS. 10 and 11) that the free end portion 25Xt of the input side arm portion 25X in each of the pair of swing links 25 is located within the lifting range R of the burner 4 in the vertical direction, In a state where the swing link 25 is swung so as to position the burner 4 at the storage position, the free end portion 25Yt of the output side arm portion 25Y is located at the same height as the fulcrum 25Z (see FIG. 10). .

That is, the swing link 25 is positioned such that the free end portion 25Xt of the input side arm portion 25X is located on the lateral side of the burner 4 in the horizontal direction and is within the lifting range R of the burner 4 in the vertical direction. In this state, the free end 25Yt of the output side arm 25Y is disposed so as to face the burner 4 side, and the free end 25Xt of the input side arm 25X is connected to the electric motor 24 via the input side connection part Ci. The free end portion 25Yt of the output side arm portion 25Y is interlocked and connected to the burner 4.
In the state where the free end portion 25Xt of the input side arm portion 25X is positioned above the fulcrum 25Z and is swung so as to position the burner 4 at the retracted position, the free end portion of the output side arm portion 25Y. The swing link 25 is disposed so that 25Yt is positioned at the same height as the fulcrum 25x.

Next, based on FIGS. 4 to 6 and FIGS. 10 to 12, the sealing material 7 seals between the outer peripheral portion of the burner unit B and the inner peripheral portion of the opening 3 of the top plate 2. Add a description.
The burner unit B is integrated with a cylindrical tubular burner support 33 having an annular projecting portion 33b that can enter the opening 3 of the top plate 2 in a state where the burner 4 projects upward from the projecting portion 33b. It is assembled and configured.
As shown mainly in FIGS. 6, 10 and 11, the cylindrical burner support 33 is configured in a cylindrical shape in which a portion below the projecting portion 33b can be inserted from the upper end side, and the upper end outer peripheral portion. A cylindrical burner mounting table 34 having an annular seal mounting surface 34f capable of mounting and supporting the annular seal material 7 is provided in a state of being interlocked and connected to the lifting means E.
The cylindrical burner support 33 is inserted into the cylindrical burner mounting table 34 from the upper end side, and a seal is provided between the seal mounting surface 34 f of the cylindrical burner mounting table 34 and the protruding portion 33 b of the cylindrical burner support 33. With the material 7 interposed, the burner unit B is mounted and supported on the cylindrical burner mounting table 34 so as to be movable relative to the cylindrical burner mounting table 34 in the axial direction of the cylindrical burner mounting table 34. .
And it is comprised so that the burner unit B can be raised / lowered by raising / lowering the cylindrical burner mounting base 34 by the raising / lowering means E, and the burner 4 can be raised / lowered to a use position and a storage position.
As the burner unit B rises to a position where the overhanging portion 33b enters the opening 3 of the top plate 2, the burner unit B is received to prevent the burner unit B from rising and the burner 4 is used. The top dead center Pt (see FIG. 12 (c)), which is provided with the ascent prevention portion H to be positioned and raises the cylindrical burner mounting table 34 by the lifting means E, maintains the non-expanded state of the sealing material 7. From the position Ps of the cylindrical burner mounting table 34 that raises the burner unit B until it is received by the ascent prevention portion H (see FIG. 12B, hereinafter may be referred to as a rise prevention corresponding position). Is also set upward.

Further, as shown in FIG. 9, in addition to FIGS. 6, 10 and 11, the upper end of the cylindrical burner support 33 is a base plate 33p having a hole having a diameter smaller than the cylindrical inner diameter. Closed, the lower end is opened throughout, and the overhang 33b is provided on the upper end of the cylindrical burner support 33 so that the upper surface thereof is flush with the upper surface of the base plate 33p.
As shown in FIGS. 10 and 11, the burner 4 is such that the burner body 4b is placed on the base plate 33p, and the mixing tube 4c protrudes below the base plate 33p through the hole of the base plate 33p. The burner unit B is constructed by being assembled integrally with the cylindrical burner support 33. That is, the outer peripheral surface of the cylindrical burner support 33 corresponds to the outer peripheral portion of the burner unit B.
The virtues 5 are configured to be freely mounted on the base plate 33p of the cylindrical burner support 33 in a state where the upper portion is positioned relative to the burner 4 in a state where the upper portion is higher than the upper portion of the burner 4. Yes.

As shown in FIG. 9 in addition to FIGS. 6, 10, and 11, four columnar lifting guide bodies 35 having slits 35 s along the longitudinal direction are provided at the bottom of the stove body 1. The slits 35s are erected in a posture along the vertical direction in a state of being arranged at intervals of 90 degrees at the central angle along a circumference smaller than the inner diameter of the cylindrical burner support 33.
Four guide bolts 36 protrude from the lower end portion of the inner peripheral surface of the cylindrical burner support 33 so as to be fitted into the slits 35 s of the four lifting guides 35.

The burner unit B is disposed in a state where the four guide bolts 36 of the cylindrical burner support 33 are fitted in the slits 35s of the four lift guides 35, and the four lift guides 35 are disposed. Thus, the movement along the vertical direction of the burner unit B is guided.
Further, as shown in FIGS. 11 and 12C, when the burner unit B is raised until each of the four guide bolts 36 comes into contact with the upper end of the slit 35s of each of the four lifting guide bodies 35, the cylindrical burner. The slits of each of the four elevating guide bodies 35 so that the upper surface of the base plate 33p of the support 33 and the upper surface of the projecting portion 33b are substantially flush with the upper surface of the top plate 2 and the burner 4 is located at the use position. The upper end of 35s is set.
That is, it protrudes on the inner peripheral surface of the cylindrical burner support 33 so as to be fitted into the four lifting guides 35 standing on the bottom of the stove body 1 and the slits 35 s of the four lifting guides 35. The four guide bolts 36 that are provided constitute the guide means G that guides the vertical movement of the burner 4 and the above-described ascent prevention portion H.

As shown in FIG. 8, in addition to FIGS. 6, 10 and 11, the cylindrical burner mounting table 34 is generally formed in a substantially bottomed cylindrical shape, and its upper end is opened throughout. The upper end surface of the cylindrical burner mounting table 34 including the upper surface of the protruding portion 34b is formed as an annular seal mounting surface 34f. The lower end is closed by a bottom plate 34p.
The inner diameter of the cylindrical burner mounting table 34 is set to be slightly larger than the outer diameter of the cylindrical burner support 33.
The cylindrical burner mounting table 34 is configured by combining a substantially annular upper side portion 34U and a substantially bottomed cylindrical lower side portion 34D, and a seal mounting surface 34f is provided on the upper side portion 34U. The bottom plate 34p is provided in the lower side portion 34D.
A notch 34c through which the mixing tube 4c of the burner 4 is inserted is provided in the lower portion 34D of the cylindrical burner mounting table 34 from the peripheral wall to the bottom plate 34p.

The bottom plate 34p of the cylindrical burner mounting table 34 is provided with four guide body insertion holes 34g so that the four elevating guide bodies 35 can be inserted individually.
In addition, a pair of slits 34s is formed in the bottom plate 34p of the cylindrical burner mounting table 34 with a wider interval than the interval between the free end portions 25Yt of the output side arm portion 25Y in each of the pair of swing links 25. A shaft supporting projection 34t is erected on the inner side of each slit 34s on the upper surface of the bottom plate 34p of the cylindrical burner mounting table 34.

Then, one end of the connecting link 37 is pivotally supported by a pivot axis A4 parallel to the swing axis A1 of the swing link 25 on the free end 25Yt of the output side arm 25Y of each swing link 25. The other end of each connecting link 37 passes through the slit 34 s of the cylindrical burner mounting table 34, and the pivot support axis A 5 is parallel to the swing axis A 1 of the swing link 25. It is pivotally supported.
That is, the burner 4 is provided in a state of being supported by the guide means G so as to be movable in the vertical direction, and one end of the burner 4 is pivotally supported on the free end 25Yt of the output side arm 25Y by the pivot axis A4 along the horizontal direction. The free end portion 25Yt of the output side arm portion 25Y and the burner 4 are connected by a connecting link 37 whose other end portion is pivotally supported on the burner 4 side by a pivot axis A5 along the horizontal direction. Will be.

As shown in FIG. 7 in addition to FIGS. 6, 10, and 11, the opening 3 is constituted by a cylindrical opening forming cylinder 38 provided in a suspended state on the top plate 2.
The opening forming body 38 is fixed in a state of being suspended from the top plate 2 by four columnar supports 39 erected on the bottom of the stove body 1.
At the upper end of the opening forming cylinder 38, a large-diameter inner peripheral portion 38i having an inner diameter larger than that of the lower portion is provided in a step shape, and the large-diameter inner peripheral portion 38i in the opening forming cylinder 38 is This is a portion corresponding to the opening 3 of the top plate 2.
Both the outer diameter of the projecting portion 33b of the cylindrical burner support 33 and the outer diameter of the projecting portion 34b of the cylindrical burner mounting table 34 are lower than the large-diameter inner peripheral portion 38i of the opening forming cylinder 38. It is set to be slightly smaller than the inner diameter.

A cylindrical burner mounted in a pair of connecting links 37 connected to the free end 25Yt of the output side arm 25Y in the pair of swing links 25 in an opening forming cylinder 38 provided in a suspended state on the top plate 2. In the state where the mounting table 34 is arranged and the seal material 7 is mounted and supported on the seal mounting surface 34f of the cylindrical burner mounting table 34, the cylindrical burner support 33 is inserted into the cylindrical burner mounting table 34 from the upper end side. Is done.
Then, the sealing material 7 is interposed between the seal mounting surface 34 f of the cylindrical burner mounting table 34 and the protruding portion 33 b of the cylindrical burner support 33. The burner unit B is mounted on the cylindrical burner in the axial direction of the cylindrical burner mounting table 34 in a state where the outer peripheral surface of the cylindrical burner support 33 is close to or slidably contacts the inner peripheral surface of the cylindrical burner mounting table 34. The cylindrical burner mounting table 34 is mounted and supported so as to be movable relative to the mounting table 34. The cylindrical burner mounting table 34 and the burner unit B mounted and supported by the lifting means E are arranged so that the outer peripheral surface of the projecting portion 33b of the cylindrical burner support 33 is close to the inner peripheral surface of the opening forming cylinder 38. Alternatively, it is lifted and lowered through the inside of the opening forming cylinder 38 in a slidable contact state.

  That is, the burner unit B is constructed by assembling the burner 4 integrally with the upper end portion of the cylindrical burner support 33 that is movable in the axial direction in the opening forming cylinder 38, and the burner unit E is provided with the burner unit E by the lifting means E. The unit B is configured to be lifted and lowered through the opening forming cylinder 38.

  By arranging the burner unit B (that is, the burner 4, the same applies hereinafter), the electric motor 24 as an actuator, the coupling mechanism C, and the input side coupling portion Ci in the stove body 1 in the relative positional relationship as described above. 10 and 11, in the stove body 1, it is not necessary to secure a space for installing the electric motor 24 below the space occupied by the burner unit B in the stowed position. It is not necessary to secure the space for installing the mechanism C at all, or it is sufficient to secure a space for installing a portion of the coupling mechanism C that overlaps with the burner unit B in the horizontal direction. In this embodiment, among the swing links 25 constituting the coupling mechanism C, the output side arm portion 25Y is positioned so as to overlap the burner unit B in the horizontal direction, and protrudes below the burner unit B. 1, it is sufficient to secure a space for installing the output side arm portion 25Y of the moving link 25 below the space occupied by the burner unit B at the storage position.

Furthermore, the output side arm portion 25Y of the swing link 25 interlockingly connected to the burner unit B (that is, the burner 4 and so on) can be formed in an elongated arm shape so that the vertical dimension can be made as small as possible. In addition, the swing link 25 is configured so that the free end portion 25Xt of the input side arm portion 25X is positioned above the fulcrum 25Z and swings so that the burner unit B is positioned at the storage position. The free end portion 25Yt of the arm portion 25Y is disposed so as to be positioned at the same height as the fulcrum 25Z. As a result, the space required below the space occupied by the burner unit B in the stowage position in the stove body 1 can be further reduced.
Therefore, since the thickness of the stove main body 1 can be reduced, the burner elevating gas stove can be made thinner.

The sealing material 7 will be described based on FIGS.
The burner unit B is attached to the cylindrical burner mounting table 34 in a state where the sealing material 7 is interposed between the protruding portion 33b of the cylindrical burner support 33 and the seal mounting surface 34f of the cylindrical burner mounting table 34. When the cylindrical burner mounting table 34 is positioned below the rising prevention corresponding position Ps or the rising prevention corresponding position Ps in the state where it is placed and supported (FIG. 6, FIG. 12 (a), FIG. 12 (b)). ), The sealing material 7 is in a non-expanded state where the diameter is not expanded.

As shown in FIGS. 6, 12 (a), and 12 (b), the outer diameter of the non-expanded sealing material 7 is equal to the outer diameter of the protruding portion 34 b of the cylindrical burner mounting table 34 or It is set to be slightly smaller than the outer diameter, that is, smaller than the inner diameter of the opening forming cylinder 38.
Further, the inner diameter of the seal member 7 in the non-expanded state is set to be slightly larger than the outer diameter of the cylindrical burner support 33.
Further, as shown in FIG. 12C, when the sealing material 7 is pressed in the thickness direction, the outer diameter is expanded so as to be larger than the inner diameter of the large-diameter inner peripheral portion 38i of the opening forming cylinder 38. It is comprised so that a diameter is possible.
That is, the sealing material 7 has an outer diameter smaller than the inner diameter of the opening forming cylinder 38 in the non-expanded state and can enter the large inner diameter portion 38i (that is, the opening 3) and is pressed in the thickness direction. Then, the outer diameter is configured to be larger than the large-diameter inner peripheral portion 38 i of the opening forming cylinder 38, that is, to be able to expand the diameter so as to contact the inner peripheral portion of the opening 3. become.

Although not shown, the electric motor 24 is provided with a rotary encoder that detects the rotation thereof, and the controller is configured to control the operation of the electric motor 24 based on a detection signal of the rotary encoder. .
The number of top dead center pulses and the bottom dead center Pd (see FIG. 12C) correspond to the top dead center Pt (see FIG. 12C) in which the cylindrical burner mounting table 34 is moved up and down by the lifting means E in advance. 12 (a)), the number of bottom dead center pulses is set and stored in the storage unit of the controller.
Incidentally, the top dead center Pt of the raising / lowering range R of the cylindrical burner mounting table 34 by the lifting means E is higher than the ascending prevention corresponding position Ps of the cylindrical burner mounting table 34 (see FIG. 12B). It is set above.

Although not shown in the figure, the operation unit is provided with a burner up switch for instructing to raise the burner 4 and a burner down switch for instructing to lower the burner 4 in correspondence with each burner 4.
The controller activates the electric motor 24 when the burner raising switch is commanded by the burner raising switch, and stops the electric motor 24 when the number of pulses detected by the rotary encoder reaches the number of top dead center pulses. When the lowering of the burner 4 is commanded by the burner lowering switch, the electric motor 24 is operated, and when the number of pulses detected by the rotary encoder reaches the number of bottom dead center pulses, the electric motor 24 is stopped.

  As shown in FIG. 12 (a), when the burner 4 is raised from the state where it is located, that is, when the cylindrical burner mounting table 34 is located at the bottom dead center Pd, first, FIG. 12 (b). 4, the four guide bolts 36 projecting from the inner peripheral surface of the cylindrical burner support 33 abut against the upper ends of the slits 35 s of the four lift guides 35 to support the cylindrical burner. The burner unit B is prevented from rising at a use position where the upper surface of the base plate 33p of the body 33 and the upper surface of the projecting portion 33b are substantially flush with the upper surface of the top plate 2. In this state, the cylindrical burner mounting table 34 is located at the rise prevention corresponding position Ps, and the sealing material 7 is not pressed by the seal mounting surface 34 f of the cylindrical burner mounting table 34, so the diameter is not expanded.

Since the top dead center Pt of the raising / lowering range R of the cylindrical burner mounting table 34 by the raising / lowering means E is set above the ascent prevention corresponding position Ps shown in FIG. 12B, FIG. As shown in the figure, the cylindrical burner mounting table 34 is further raised to the top dead center Pt in a state in which the rise of the burner unit B is prevented by the rise prevention portion H. Then, the sealing material 7 is pressed in the thickness direction by the seal mounting surface 34f of the cylindrical burner mounting table 34 while being received by the protruding portion 33b of the cylindrical burner support 33. The diameter is increased while the thickness is reduced, and is fitted into the large-diameter inner peripheral portion 38i at the upper end of the opening forming cylinder 38, and the inner surface and the cylindrical shape of the large-diameter inner peripheral portion 38i of the opening forming cylinder 38 Contact with the outer peripheral surface of the burner support 33 (corresponding to the outer peripheral portion of the burner unit B) over the entire circumference, and the gap between the outer peripheral portion of the burner unit B and the inner peripheral portion of the opening 3 of the top plate 2 is ensured. Sealed.
Therefore, when the burner 4 is located at the use position, foreign matter such as boiling juice blown from the heating container can be prevented from entering the stove body 1 through the opening 3 of the top plate 2. .

As shown in FIGS. 8, 13, and 14, four engagement holes 34 h are arranged in the circumferential direction at intervals of 90 degrees at the central angle in the cylindrical peripheral wall portion of the cylindrical burner mounting table 34. Is provided.
Further, as shown in FIGS. 9, 13 and 14, four engagement bolts 40 are provided on the outer peripheral surface of the cylindrical burner support 33, and four engagement holes 34 h of the cylindrical burner mounting table 34. And the relative positional relationship between the cylindrical burner support 33 and the cylindrical burner mounting table 34 is such that the protruding portion 33b of the cylindrical burner support 33 and the seal mounting surface 34f of the cylindrical burner mounting table 34 are When the relative positional relationship corresponds to a state in which the gap between the two is larger than the thickness of the seal member 7 in the non-expanded diameter state, the upper ends of the four engagement holes 34h of the cylindrical burner mounting table 34 are in contact with each other. Projected to touch.

  As shown in FIG. 14A, when the burner unit B is positioned at the use position, if the sealing material 7 is in close contact with the inner peripheral surface of the opening forming cylinder 38, the burner unit B is cylindrical. Even if the state of being supported by the burner mounting table 34 is released, as shown in FIG. 14B, the burner unit B may remain in the use position and not descend. Even in such a case, the cylindrical burner mounting table 34 is lowered until the seal mounting surface 34f is separated from the sealing material 7, and the relative positional relationship between the cylindrical burner support 33 and the cylindrical burner mounting table 34 is maintained. The relative positional relationship corresponding to the state in which the distance between the protruding portion 33b of the cylindrical burner support 33 and the seal mounting surface 34f of the cylindrical burner mounting table 34 is larger than the thickness of the non-diameter expanded sealant 7 is obtained. As a result, the upper ends of the four engagement holes 34h of the cylindrical burner mounting table 34 come into contact with the four engagement bolts 40, so that the burner unit B is forcibly lowered.

[Another embodiment]
Next, another embodiment will be described.
(A) The specific configuration of each of the actuator and the coupling mechanism C constituting the elevating means E is not limited to the configuration exemplified in the above embodiment.
For example, even when the coupling mechanism C is configured in the same manner as the above embodiment, a cylinder such as an electric cylinder can be used as the actuator.
Further, the coupling mechanism C may be configured by a rack and pinion mechanism. That is, the rack is attached to the burner 4 in a posture in which the longitudinal direction thereof is along the vertical direction, and a pinion fixed to the output shaft of the electric motor as an actuator is screwed into the rack. In this case, the input side coupling portion Ci of the coupling mechanism C is configured by a pinion gear.

(B) The arrangement form of the swing link 25 is the form described in the above embodiment, that is, the burner 4 is accommodated in the posture in which the free end portion 25Xt of the input side arm portion 25X is positioned above the fulcrum 25Z. In the state of being swung so as to be positioned, the free end portion 25Yt of the output side arm portion 25Y is not limited to a state in which the free end portion 25Yt is positioned at the same height as the fulcrum 25Z. For example, in a state where the free end portion 25Xt of the input side arm portion 25X is positioned above the fulcrum 25Z and is swung so as to position the burner 4 at the storage position, the free end portion of the output side arm portion 25Y. A form in which 25Yt is positioned above the fulcrum 25Z may be employed.

( C ) In the above embodiment, the pair of swing links 25 are integrally connected, and the burner unit B is moved up and down using the pair of swing links 25. However, one swing link 25 is used. It is good also as a structure which raises / lowers the burner unit B.

( D ) In the above-described embodiment, the substantially bottomed cylindrical burner mounting table 34 is configured by combining two members of a substantially annular upper side portion 34U and a substantially bottomed cylindrical lower side portion 34D. However, you may comprise by one member.

( E ) The specific configuration of the guiding means G is the configuration exemplified in the above embodiment, that is, the four lifting guide bodies 35 erected on the bottom of the stove body 1 and the inner periphery of the cylindrical burner support body 33. The configuration is not limited to the four guide bolts 36 projecting from the surface. For example, a slit along the vertical direction is formed in the cylindrical burner support 33, and a protrusion is provided on the stove body 1 so as to fit into the slit, and the slit and the stove formed on the cylindrical burner support 33 are provided. The guide means G may be constituted by a protrusion provided on the main body 1.

( F ) The gas stove to which the present invention can be applied is not limited to the built-in type exemplified in the above-described embodiment, and can be applied to various gas stoves such as a stationary type and a single-hole type.

  As described above, a burner elevating gas stove that can be thinned can be provided.

1 Stove body 2 Top plate 3 Opening 4 Burner 5 Gotoku 8 Lid 24 Electric motor (actuator)
25 swing link 25X input side arm portion 25Xt free end portion 25Y output side arm portion 25Yt free end portion 25Z fulcrum 33 cylindrical burner support 37 connecting link 38 opening forming cylinder A1 swing axis A4 pivot axis A5 pivot Support shaft center B Burner unit C Connecting mechanism Ci Input side connecting portion E Lifting means G Guide means R Lifting range

Claims (4)

A burner disposed at the opening of the top plate provided on the top of the stove body, a use position that projects the burner above the top plate, and the same height as the top plate, or below the top plate Elevating means for elevating and lowering through the opening at the storage position retracted into the
The hoisting means is a gas stove comprising an actuator and a coupling mechanism for coupling the actuator to the burner in a form for converting the output of the actuator to raise and lower the burner,
The input side connecting portion connected to the actuator in the connecting mechanism is located on the lateral side of the burner in the horizontal direction and in the vertical range of the burner in the vertical direction. And the coupling mechanism is disposed in the stove body ,
A burner unit that includes the burner and that can be detachably mounted in a predetermined relative positional relationship with the burner in a state where the upper part of the virtues is higher than the upper part of the burner is configured,
The elevating means raises and lowers the burner unit so that the upper part of the virtues protrudes upward from the top plate at the use position and the entire burner unit retracts below the top plate at the storage position. Configured to
When the burner unit is located at the storage position, a lid capable of closing the opening of the top plate is provided,
The opening is constituted by an opening forming cylinder provided in a suspended state on the top plate,
The burner unit is configured by integrally assembling the burner at the upper end of a cylindrical burner support that is movable in the axial direction in the opening forming cylinder,
A gas stove configured such that the burner unit is lifted and lowered through the opening forming cylinder by the lifting means . The connecting mechanism bends in a V shape at an angle of 90 degrees or more at the fulcrum, and one of the two rod-shaped portions extending from the fulcrum serves as an input side arm and the other serves as an output side arm. Is provided with a swing link that is swingably supported around a horizontal swing axis at
The swing link is in a state in which the free end portion of the input side arm portion is positioned laterally of the burner in the horizontal direction and in the vertical range of the burner in the vertical direction. The free end portion of the output side arm portion is arranged in a posture facing the burner side,
2. The gas stove according to claim 1, wherein a free end portion of the input side arm portion is interlocked to the actuator via the input side connection portion, and a free end portion of the output side arm portion is interlocked to the burner. .   When the swing link is swung so that the free end portion of the input side arm portion is positioned above the fulcrum and the burner is positioned at the storage position, the output side arm portion The gas stove according to claim 2, wherein the free end portion of the gas stove is disposed so as to be in a state of being at the same height as the fulcrum or above the fulcrum. The burner is provided in a state supported by the guide means so as to be movable in the vertical direction,
One end is pivotally supported on the free end of the output side arm by a pivot axis along the horizontal direction, and the other end is pivotally supported on the burner side by a pivot axis along the horizontal direction. The gas stove according to claim 2 or 3, wherein the free end portion of the output side arm portion and the burner are connected by a link.

Images