JPH01270811A - Exhausting device - Google Patents

Abstract

PURPOSE:To present an exhausting device, which can be freely moved, by fitting a hollow strut, which is connected to an air chamber, to a cabinet with being freely moved up and down and fitting a hollow roof, for which an absorbing port is opened, to the upper edge of the said hollow strut with being positioned in the upper direction of a cooking equipment. CONSTITUTION:For a cabinet 4 to integrate a cooking equipment B, an air chamber 1 to mount an exhausting unit C is sectioned and a hollow roof 3 to have an absorbing port 4 is supported through hollow struts 2 and 2', which are connected to the air chamber 1, in the upper direction of the cooking equipment. Then, since the hollow struts are moved up and down, the hollow roof is positioned in the upper direction of the cooking equipment by moving up the hollow strut when the cooking B is used. Since the hollow roof 3 to be fit to the hollow struts 2 and 2 ' is inclined, a space near the head of a cooker, which stands in the front part of the cooking equipment B, is widely secured. When the cooking equipment is not used, the surface of the cooking equipment can be used as a cooking stand since the struts 2 and 2' are caused to fall down and the upper surface of the cooking equipment is covered with the hollow roof. Further, since the turning of a casting 17 of the exhausting unit C can be freely adjusted, the direction of the exhausting port 19 can be freely selected.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an exhaust system, and more particularly to an exhaust system that integrates a cooking utensil and an exhaust unit.

(Prior art) ml' of a gas range or electric range generally installed in the kitchen.
! ! A range hood or a ventilation fan hood is used to exhaust smoke, oil smoke, odor, etc. generated when cooking with three ingredients to the outside.

And the range hood is a wall-mounted type (Jikko 56
-20739) and a lower-ceiling type developed for island-type kitchens.

(Problems to be Solved by the Invention) All of the conventional exhaust devices for range hoods and the like described above are fixed to walls and ceilings in accordance with freely laid out cooking utensils. Therefore, after installation, changes in family structure,
Alternatively, even if there is an event such as a party, cooking utensils and exhaust equipment cannot be moved, and the effective space of the kitchen cannot be expanded.

The present invention has been made in view of these problems of the prior art, and its purpose is to provide an exhaust system that can be moved freely.

(Means for Solving the Problems) In order to achieve the above object, the exhaust system of the present invention is equipped with an exhaust unit in a cabinet incorporating cooking utensils such as a gas range or an electric range, and partitions an air chamber into one space. A hollow support that communicates with the air chamber is attached to the cabinet so as to be movable up and down, and a hollow top plate is provided with an inlet at the upper end of the hollow support. l Install it above the appliance.

The exhaust port of the exhaust unit is formed to protrude outward from the air chamber and can be connected to and separated from a duct piped on the floor surface.

Further, the hollow top plate attached to the hollow support may be fixed in a horizontal state, but the front side of the hollow top plate may be tilted in the vertical direction.

Furthermore, the hollow top plate attached to the hollow support is sized to cover cooking utensils, and when lowered to the lower limit position, it covers the cooking utensils and the surface of the hollow top plate is large enough to cover other utensils (for example, a sink, etc.). ).

Further, an air supply port for supplying air to aid combustion is provided in the side surrounding the cooking utensil (particularly the gas stove) in the cabinet, and the air supply port is communicated with an outside air introduction section defined within the cabinet.

Furthermore, the casing of the exhaust unit installed in the air chamber may be fixed in a fixed direction, but the exhaust port is formed in the casing so that it can be rotated horizontally by removing the set screw. The protruding direction of the cabinet may be changed, and the hollow columns that support the hollow top plate and move up and down may be provided within the three sides of the left and right side edges and the rear edge of the cabinet, excluding the front edge. They may be arranged facing each other in the middle of the depth dimension on both the left and right sides.

Furthermore, the mechanism for raising and lowering the hollow support is a wire method,
Examples include a cylinder type and a ball screw type.

The specific structure of the above wire method is that a fixed frame is fixed upright on both the left and right sides of the bottom plate of the cabinet, and a movable frame is fitted vertically within the fixed frame via a slide bar. A hollow support is fitted and fixed to the outside of the frame, fixed pulleys are attached to the upper and lower parts of the left and right fixed frames, and a wire winding drum rotated by a motor is installed approximately midway between the left and right fixed frames. , one end of the wire is fixed to the winding drum, the other end of the wire A7 is connected and fixed to the lower part of the movable frame via the lower fixed pulley of one of the fixed frames, and the other end is fixed to the lower part of the movable frame. One end of one wire is fixed, and the other end is connected and fixed to the lower part of the other movable frame via the lower fixed pulley, the lower fixed pulley of the other fixed frame, and the upper fixed pulley.

Stopping at the top dead center, bottom dead center, and intermediate point using the wire method described above is achieved by sliding along the axis of the actuating body, which is screwed to the screw shaft that rotates integrally with the winding drum of the wire. The limit switch is actuated using the motion, thereby starting and stopping the motor.

Further, as a safety device, the drive unit 11 is equipped with a temperature sensor that detects the temperature near the surface of the cooking utensil.

1llI6I operates with priority over OFF operation! A timer measures the elapsed time after the mechanism or cooking utensil stops operating, and the tII is calculated based on the length or shortness of the elapsed time.
A mechanism for performing itm may be provided.

Further, the cabinet may be provided with means for increasing mobility, such as casters.

(Function) According to the above means, :l of a gas range or an electric range, etc.
An air chamber equipped with an exhaust unit is defined in the cabinet in which the cooking utensils are installed, and a hollow top plate with an inlet above the cooking utensils is supported at 1J via a hollow support that communicates with the air chamber. Because the hollow column slides up and down,
When using the cooking utensil, the hollow support is moved upward so that the hollow top plate is positioned above the cooking utensil, and the FA cooking utensil is activated to reduce exhaust smoke and oil smoke generated when cooking. Odors and the like are sucked in through the suction port of the hollow top plate and exhausted through a duct connected to the exhaust port of the exhaust unit. By tilting the hollow top plate attached to the hollow support, a large space is secured near the head of the cook standing in front of the cooking utensil. In addition, since the hollow support moves up and down, when the cooking utensil is not in use, the support can be lowered and the hollow top plate can be covered over the top of the cooking utensil, allowing the surface of the hollow top plate to be used as a cooking table (counter). becomes possible.

Furthermore, the top of the cabinet is equipped with an air supply port that communicates with the outside air intake, so when the cooking utensil is a gas range (including a gas stove), combustion air is replenished, and the air is supplied from the stove. Since it is carried out from a position approximately at the same height as the nozzle, it is effectively used only for combustion and prevents outside air from hitting the cook. In addition, since the casing of the above exhaust unit is rotatably adjustable,
The direction of the exhaust port can be freely selected by rotating the casing. Also, the exhaust unit is built into the cabinet (so it can be moved together with the cooking utensils by removing the duct, and it can also be easily moved if the cabinet is equipped with moving means such as casters). It becomes possible.

Furthermore, if a tire system is used to move the wire by rotating a winding drum using a motor as a mechanism for raising and lowering the hollow support, it is possible to synchronize the left and right supports and move them up and down using a single drive source. . The actuating body is driven along the axis by the integral rotation of the screw shaft fixed to the axis of the winding drum, and the top dead center of the hollow column is moved upward in order to operate the limit switch placed around the screw axis. , stopping at the bottom dead center during descent and at a predetermined height (intermediate point) above the stove is ensured 1aIlltll.

In addition, if the above mechanism is provided with a temperature sensor-based control means that gives priority to the ON/OFF operation of the motor, or a timer that detects the elapsed time after the cooking utensil stops operating, III The III mechanism takes priority, and since the motor does not operate, the hollow column at the top dead center is not lowered, ensuring safety.

(Example) Embodiments of the present invention will be described below based on the drawings.

The drawing shows a structure incorporating an electric range as a cooking utensil, and in the drawing, A is a cabinet, B is a cooking utensil consisting of an electric range, and C is an exhaust unit.

Cabinet A is formed into a rectangular parallelepiped shape using a galvanized steel plate, and a cooking utensil B is installed in the upper part of the cabinet A, and an air chamber 1 equipped with an exhaust unit C is partitioned in the lower half of the cooking utensil B. , in communication with the air chamber 1, hollow columns 2.2° are located on both left and right sides of the cabinet A and are attached to the cabinet A so as to be movable up and down.
A hollow top plate 3 having a suction port 4 at its upper end is tiltably attached.

To install the electric range 8 to the cabinet A, fit and fix the outer frame 7 provided with the rail member into the mounting hole 6 made in the top plate 5 of the cabinet 8 from above, and then attach the outer frame 7 to the front surface of the cabinet A. The main body 8 equipped with electrical components, etc. is engaged and inserted into the rail of the outer frame 7 through the through hole opened in the hole, the outer frame 7 and the main body 8 are connected and fixed with setscrews, and the sheathed heater etc. 10 is attached. A top plate 9 made of Takin vs. is placed on the outer frame 7, and the connector of the heater is connected to the main body 8.

Casters 11 are attached to four parts of the bottom surface of the cabinet A to improve mobility.

A cover plate 13 is fixed to the lower part of the partition 12 that partitions the part of the cabinet 8 that accommodates the W4 processing utensils 8, approximately in the middle of the depth dimension. A chamber 1 is formed into sections, and an exhaust unit 1-C is housed and installed in the air 'ai, and communication passages 14, 14 are provided on both the left and right sides of the chamber that communicates with the air chamber 1 and accommodates the WA equipment B. A hollow column 2.2' is fitted into the communicating passage 14.14' so as to be vertically slidable, and projects upwardly through the top plate 5 of the cabinet A.

The exhaust unit C installed in the air chamber 1 is the motor 1
5. Consisting of a fan 1G and a fan casing 17, a motor 15 and a fan casing 11 are hung down from the bottom surface of a partition plate 12 via a connecting piece 18, and an exhaust port 19 of the fan casing 17 projects outward from the air chamber 1. ing. Further, although the fan casing 17 is screwed through a connecting piece 18, the direction in which the exhaust port 19 projects can be selected as desired by rotating the casing 17. Note that the drawings show a configuration in which the exhaust port 19 passes through the cover plate 13 and projects forward. Fan casing 1
A ladder-shaped duct 20 is attached to the exhaust port 7, and an exhaust duct 21 can be freely connected to the L-shaped duct 20.

The hollow support 2.2' inserted into the communication passage 14.14' that communicates with the inside of the air chamber 1 is a tubular body with a rectangular cross section;
A hollow top plate 3 is attached to communicate with the inside of the left and right hollow columns 2.2 degrees.

The mechanism for lowering the hollow column 2.2' is to vertically fix fixed frames 22.22'' on both left and right sides of the bottom plate of the cabinet, and to connect the fixed frames 22.22' to the communication passage 14.1.
4', and a movable frame 24.24' is vertically slidably engaged with the fixed frame 22.22' via a slider 23.23', and the fixed frame 22.22' The hollow struts 2 and 2° are fitted so as to enclose the hollow struts 2 and 2°.
．． 2' is a movable frame 24.2s' which is connected to a mounting piece 25 fixed to the side with a set screw to connect the movable frame 24.24' and the hollow support 2.2.
′ so that they move as one.

Then, the fixed slides I! 2G, 27.26°, 21' are fixed, and a motor 28.28, which is a power source, is located approximately midway between the left and right fixed frames 22, 22'. A transmission 29 and a winding drum 30 fixed to the output shaft of the transmission are installed.

One end of a wire 31 is fixed to the winding drum 30,
The other end of the wire 31 is connected to the lower fixed pulley 27 of the fixed frame 22.
．． It is connected and fixed to the lower part of the movable frame 24 via the upper fixed pulley 26. Furthermore, another wire 32 is attached to the movable frame 24.
One end of the wire 32 is fixed at a position above the connecting and fixing position of the wire 31, and the other end of the wire 32 is connected to the lower fixing pulley 21' of the other fixing frame 22', and the upper fixing part from the fixed eraser 11159 installed in parallel with the lower fixed pulley 27. the other movable frame 2 via the pulley 26'
Connect and fix at the bottom of 4°.

Moreover, support rods 33.33' that connect the hollow top plate 3 are rotatably supported on the upper ends of the left and right movable frames 24.24' by set screws 34, and the movable frame 24 is supported on the support rods 33.33'.゜2
A vertical rod 35.35' is connected to the front of the vertical rod 35.35', and the lower end of the vertical rod 35.35' is connected to the movable frame 24°2.
4° Toni crossing T operation M3G, 3G' is axis 37.38'
The rear part of the operating arm 36.3G' extends and protrudes toward the return side of the fixed frame 22.22'.
It can freely collide with a stopper 39, 39' fixed to the upper end of the holder.

That is, the support rod 33.33' is tilted vertically about the set screw 34 by the operating arm 36.36' and the vertical rod 35.35'.

Support rod 33.33' attached to movable frame 24.24'
The hollow top plate 3, which is constructed and fixed across the cabinet A, is made of galvanized copper plate and has approximately the same size as the top surface of the cabinet.
is filled, and a filter 4 is attached to the suction port 4.
0 is removably attached.

In addition, support rods 33° 33 on both left and right sides of the hollow top plate 3
The opening into which the ``m'' is fitted is closed by the chain plate 41, and the inside of the hollow top plate 3 and the inside of the hollow support 2.2' are in communication.
The suction effect generated by the operation of the exhaust unit C is made to act on the suction port 4 of the hollow top plate 3.

In addition, the above mechanism (therefore, the hollow support 2゜2' that is raised and lowered stops at the top dead center a, the bottom dead center and the intermediate point C!1llrla)
As shown in FIG. 5, a screw shaft 42 is fixed to the side end of the winding drum 30 so as to rotate integrally with the winding drum 30, and a blocking piece 43 is screwed onto the screw shaft 42 so as to be prevented from rotating. A limit switch 44 for the bottom dead center is provided at intervals along the axial center of the shaft 42. A limit switch 45 for the top dead center and a limit switch 46 for the intermediate point are provided, and the hollow support 2
．． As the winding drum 3G moves up and down, the actuating piece 43 moves in the axial direction to actuate each limit switch, thereby stopping the operation of the motor 28.

Furthermore, when the limit switch 46 for the intermediate point is activated, the hollow top plate 3
The position where the descent is stopped is WFf! The height is such that even if the hollow top plate 3 is lowered with the steel part of the apparatus B placed on it, the hollow top plate 3 stops at a position in front of it without colliding with a chain or the like.

Further, the circuit for operating and stopping the motor 28 described above can be provided with a safety device that stops the operation of the motor in priority to the operation of the motor ON switch when the hollow top plate 3 is lowered.

As a safety device, a temperature sensor 47 is attached to the cooking utensil B to detect the surface temperature of the cooking utensil B, the detected temperature is compared with a set safe temperature, and the operation of the motor 28 is controlled based on the comparison result. A temperature type (see Figure 8) or a timer circuit 48 that measures the elapsed time after the operation of the cooking appliance B is stopped is connected to the cooking appliance B, and whether or not the elapsed time 13.1 has reached the set time. A timer type that controls the operation of the motor 28 depending on the timing (see Figure 9).
can be provided.

Also, the air in Cabinet 8 mentioned above? In front of 2!1, an Ili surface substantially U-shaped frame is fixed to the lower surface of the partition plate 12 over the entire length in the width direction to define an outside air introduction part 49, and the left and right sides of the outside air introduction part 49 are connected. 114.1
A flat air supply passage 50.50 partitioned on the outside of 4'
The air supply passage 50°50' is connected to the rising w4 wall 5 on three sides of the top plate 5 excluding the front part.
Of 1, the left and right side IIi! Air supply port 5 opened at 0
2, and outside air is discharged. ' Air supply duct connection parts 5 are installed at appropriate locations on the lower surface of the four outside air introduction parts.
3 is formed and connected to the air supply duct 54 which is piped under the floor.
It is considered separable.

In addition, a window hole 55 opened on the front side of the cabinet for connecting piping, etc. is covered with a decorative cover plate 56, and a member 51 is attached to the outside surface of the cabinet, so that it can be used as a system kitchen. utensils.

It is designed to harmonize with the furniture.

The decorative lid #156 is engaged by a female part vI58a embedded in the cabinet Afllll and a male member 58b attached to the lid plate 56 side, and the decorative lid plate 56 can be removed by pulling it forward. It has become.

With the above configuration, key 1! I! i! When using 9 Soldier B, first press the switch that activates the motor 28 to raise the hollow top plate 3 located at the bottom dead center to the top dead center a, and the rotation of the motor 28 is controlled by the transmission 29. The speed is changed, the winding drum 30 fixed to the output shaft of the transmission 29 rotates and the wire 31 is wound, and the movable frame 24 to which the end of the wire 31 is fixed moves along the fixed frame 22 as a slider. 2
3 and is pulled upwards.

At this time, the wire 32 whose one end is fixed to the movable frame 24 is
Since the movable frame 24 is pulled by the upper limit, the other movable frame 24' to which the other end of the wire 32 is connected is pulled upward along the fixed frame 22' via the slider 23'.

Therefore, the left and right movable frames 24.24' move up and down in synchrony, the hollow supports 2, 2' connected to the movable frames 24.24' rise, and the hollow top plate 3 of the cooking utensil B rises. move upwards. The hollow support 2゜2' is connected to the screw shaft 4.
The movement of the actuating piece 43 due to the rotation of step 2 pushes the top dead center limit switch 45, so that the motor 28 is stopped, raised to a predetermined position d, and then stopped. Moreover, in the vicinity of the top dead center a, the support rod 33.3 that connects and holds the hollow top plate 3
Since the front side of the hollow top plate 3' is tilted and moved upward by the link mechanism, the front side of the hollow top plate 3 is also tilted upward, thereby securing a wide space near the chef's head.

In the above manner, the hollow top plate-3 is adjusted to I11! When the exhaust unit C in the air chamber 1 is operated while the device B is maintained at a predetermined position δ above the device B, the suction action is applied to the air chamber 1°, the hollow column 2,
2' to the suction port 4 of the hollow top plate 3, and the cooking utensil B
The exhaust smoke 2 and soot generated by the exhaust gas are sucked through a filter 40 attached to the suction port 4. The inhaled exhaust smoke, etc. is inside the air chamber 1. is sucked into the casing 11,
L-shaped duct 20 from the exhaust port 19 of the fan casing 17
and is discharged via the exhaust duct 21 to an exhaust system piped under the floor.

In addition, by connecting the outside air introduction pipe piped under the floor and the outside air introduction part 49, the outside air can be transferred from the outside air to the outside air introduction part 49→
The air is discharged through the air supply passage 50, 50' from the air supply port 52 formed in the rising peripheral wall 51 of the top plate 5, and is replenished with combustion air from the gas range or gas stove, thereby preventing the occurrence of oxygen deficiency.

Furthermore, by removing the setscrew that hangs down the fan casing 11 of the exhaust unit C and rotating it horizontally, the direction of the exhaust port 19 of the fan casing 1γ can be changed, so that it can be adjusted according to the movement of the cabinet, etc. You can make changes and adjustments.

``When you have finished using the cooking utensil B, by operating the switch that lowers the hollow top plate 3, the hollow supports 2, 2' are lowered by the reverse operation described above, and the upper part of the cooking utensil B is lowered. When it descends to a predetermined position, the intermediate point limit switch 46 is activated to stop the rotation of the motor, and the hollow top plate 3 is also stopped.

This means that even if you accidentally operate the lowering switch while placing a tassel etc. on cooking utensil B, the hollow top plate 3 will temporarily stop at a predetermined height above the stove, allowing you to remove the pot from the stove. Cookware B
When there is no pot etc. on top, by pressing the lowering switch again, the hollow support 2.2' will start lowering again.
It descends to bottom dead center and stops.

When reaching the bottom dead center B, the hollow top plate 3 covers the top surface of the cooking utensil B, and the top surface becomes a flat surface. Thereby, when the hollow top plate 3 is lowered, the surface of the top plate 3 can be used as a cooking table.

Also, when avoiding the hollow top plate 3, rAll! I! If some time has not passed since the operation of the appliance B was stopped, or if the temperature of the surface of the three appliances 8 is higher than the safe temperature, the control means will operate to control the motor 28 that lowers the hollow top plate 3. Operation is stopped and safety is ensured.

In the above embodiment, the hollow columns 2.2' that connect the air chamber 1 and the hollow top plate 3 with the suction port 4 are erected on both sides of the upper surface of the cabinet A. Of course, it is also possible to stand up along the rear edge.

Furthermore, the casters 11 attached to the four corners of the cabinet may be equipped with stoppers in consideration of fixation after transfer, or support legs that can be adjusted up and down may be attached separately from the casters. It is.

The present invention has been described above in detail with respect to its most preferred embodiment, but the combination and arrangement of parts in the preferred embodiment may be modified in various ways without departing from the spirit and scope of the invention as specified in the claims. It is something that can be done.

It is assumed that piping units including ducts connected to the exhaust system of the present invention are installed in advance at several locations on the floor.

(Effects of the Invention) By having the exhaust system of the present invention configured as detailed above, it becomes an exhaust system that is integrated with cooking utensils, and eliminates the exhaust smoke and oil smoke generated when using the cooking utensils. Air can be sucked through the suction port of a hollow top plate placed on the upper back above the cooking utensils, introduced into an air chamber divided within the cabinet, and exhausted through an exhaust unit.

When the above-mentioned hollow top plate is not in use, it is lowered to cover the cooking utensils, so when the cooking utensils are not in use, the surface of the hollow top plate can be used as a cooking table (counter), making it versatile. It can be utilized.

Moreover, Ill! on the top of the cabinet! f! Since an outside air supply port is provided to supply the air necessary for combustion in the gas range (including gas stove), stable combustion can be ensured and oxygen deficiency can be prevented. In addition, since the air supply port is placed on the side at approximately the same height as the gas stove, it is only used as combustion air, causing discomfort when the outside air hits the worker, and causing discomfort in the entire room. This can prevent the occurrence of problems such as disturbance and reduction of cooling/heating effects.

Furthermore, if the fan casing of the exhaust unit can be rotated horizontally by removing the set screw, the direction of connection of the exhaust duct can be freely selected as the exhaust system is moved, and the appearance will not be impaired. Can be adjusted.

In addition, since the hollow top plate is tiltably attached to the hollow support, the space above the front of the gear vignette can be widened by tilting the hollow top plate forward and upward after raising it to top dead center. This eliminates the problem of the cook's head hitting the hollow top plate.

Furthermore, if a wire system is used as a mechanism for raising and lowering the hollow pillar, the left and right pillars can be synchronized with the motor 1flN to avoid raising and lowering them. Because of its small size, only a small space is required and assembly is easy.

Furthermore, the vertical drive mechanism is temporarily stopped at a predetermined height position above the cooking utensil by a limit switch, just before the bottom dead center [5]. It does not hit the chain and can be used with confidence. Additionally, when a temperature-type or timer-type safety device is added to the above mechanism, the safety device works in priority to the switch that lowers the hollow top plate, and prevents the hollow top plate from lowering, further ensuring safety. Ru.

Therefore, it is possible to provide an exhaust system that can be used in future system kitchens that can be moved freely depending on changes in family composition and the size of events such as parties.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view with the hollow top plate raised, FIG. 2 is a partially cutaway side view of the same, and FIG. 3 is a partially cutaway side view of the hollow top plate. - (3) An enlarged sectional view along the line, Fig. 4 is an enlarged sectional view showing the 'lR path to the air supply port, Fig. 5 is an enlarged plan view without showing the drive mechanism going up and down the hollow support, Figure 6 is a circuit diagram of the switch section installed on the cabinet side, Figure 7 is an electric circuit diagram of the drive unit, and Figures 8 and 9 are! It is a block diagram of a safety device added to the electric circuit on the side of the JA#lJ machine. In the diagram, A: Cabinet B: Cookware C: Exhaust unit 1: Air chamber 2.2': Hollow support 3: Hollow top plate 4: Inlet
19: Exhaust port 22, 22': Fixed frame 23, 23' Nishiride bar 24, 24': Movable frame 2G, 27.26', 27': Fixed pulley 28
: Motor 30: Winding drum 31. 32: Wire 49: Outside air introduction section 50, 50': Air supply passage 52: Air supply port Patent applicant Fuji Kogyo Co., Ltd. Patent applicant Klinap Co., Ltd. Figure 5 Figure 6 Recruitment drawing 8

Claims (1)

[Scope of Claims] (1) An air chamber equipped with an exhaust unit is formed in a cabinet incorporating a cooking appliance such as a gas range or an electric range, and a hollow column communicating with the air chamber is moved up and down in the cabinet. This exhaust device can be freely attached, has a hollow top plate with a suction port provided at the upper end of the hollow support, positioned above the cooking utensil, and further has an exhaust port of the exhaust unit formed on the outside of the air chamber. (2) The exhaust system according to claim (1), wherein the hollow top plate is attached to the hollow support so that its front side can be tilted vertically at a predetermined angle. (3) The exhaust system according to claim (1) or (2), wherein when the hollow support is lowered to the lower limit position, the hollow top plate covers cooking utensils, so that the surface of the hollow top plate can be freely used as a cooking table. (4) Claim (1) wherein an air supply port is provided around the upper surface of the cabinet for supplying air that helps the combustion of cooking utensils, and the air supply port is communicated with an outside air introduction section defined within the cabinet.
) or the exhaust device described in (2) or (3). (5) The fan casing of the exhaust unit installed in the air chamber is rotationally adjustable, and the direction of the exhaust port connected to the fan casing can be freely selected.
2) or (3) or the exhaust device described in (4). (6) The exhaust system according to claim (1), (2), (3), (4), or (5), wherein the hollow struts are provided on both left and right sides of the cabinet. (7) A fixed frame is fixed upright on both the left and right sides of the bottom plate of the cabinet, and a movable frame is fitted into the fixed frame so as to be slidable up and down via a slide bar, and a hollow support is installed on the outside of the movable frame. Fixing pulleys are fitted and fixed to the upper and lower parts of the left and right fixing frames, and a wire winding drum rotated by a motor is installed at a substantially intermediate position between the left and right fixing frames,
One end of the wire is fixed to the winding drum, the other end of the wire is connected and fixed to the lower part of the movable frame via the lower fixed pulley of one fixed frame, and the other end of the wire is fixed to the lower part of the movable frame. A claim comprising a vertical sliding mechanism in which one end of the wire is fixed and the other end is connected and fixed from the lower fixed pulley to the lower fixed pulley of the other fixed frame and to the lower part of the other movable frame via the lower fixed pulley and the upper fixed pulley. 1) or (2) or (3) or (4) or (
5) or the exhaust device described in (6). (8) A screw shaft is fixed to the axis of a winding drum rotated by a motor so as to rotate integrally therewith, and an operating piece is screwed onto the screw shaft, and the rotation is stopped so that the screw shaft can freely slide in the axial direction;
8. The exhaust device according to claim 7, further comprising a limit switch provided around the axis of the screw shaft for controlling stops at bottom dead center, top dead center, and intermediate point. (9) The exhaust system according to claim (7) or (8), wherein the lowering of the hollow support is controlled by the temperature detected on the surface of the cooking utensil by a temperature sensor attached to the cooking utensil, regardless of whether the motor is turned on. (10) A claim in which a timer circuit detects the elapsed time after the cooking appliance stops operating, regardless of whether the motor is turned on, and the lowering of the hollow support is controlled based on the length or shortness of the elapsed time. The exhaust device according to item (7) or (8).