Title:
Exhauster for roaster
Kind Code:
A1


Abstract:
Provided is an exhauster for a roaster which can exhaust the smell and the smoke which are generated when the meat is burnt in a restaurant, etc., to the outside of the restaurant. The exhauster includes: a hood tube in which a plurality of hood pipes can be combined so as to be folded in a multi-stage, and packings are applied to connection portions of the respective pipes to thereby prevent a gap from being formed between the connected hood pipes and the leak of the foreign matters from occurring; a hood main body having a space portion of a vertical direction length so that the contracted hood tube is completely inserted when the hood tube has been completely contracted, an exhaust tube having a fan which is installed at an axial portion in communication with the hood main body, and a bracket which is installed at the upper end thereof to then be fixed on the ceiling; and an elevating apparatus which is provided on the bottom of the bracket of the hood main body, including a winding reel around which a lifting chain is wound and a motor driving the winding reel, to thereby extend or contract the hood tube, in which the elevating apparatus is driven by a wireless remote controller.



Inventors:
Shin, Hyeon-gu (Chungcheongbuk-do, KR)
Application Number:
11/524054
Publication Date:
04/12/2007
Filing Date:
09/20/2006
Primary Class:
International Classes:
F24C15/20
View Patent Images:
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Primary Examiner:
BASICHAS, ALFRED
Attorney, Agent or Firm:
LADAS & PARRY LLP (CHICAGO, IL, US)
Claims:
What is claimed is:

1. An exhauster for a roaster comprising: a hood tube in which a plurality of hood pipes can be combined so as to be folded in a multi-stage, and packings are applied to connection portions of the respective pipes to thereby prevent a gap from being formed between the connected hood pipes and the leak of the foreign matters from occurring; a hood main body having a space portion of a vertical direction length so that the contracted hood tube is completely inserted when the hood tube has been completely contracted, an exhaust tube having a fan which is installed at an axial portion in communication with the hood main body, and a bracket which is installed at the upper end thereof to then be fixed on a ceiling; and an elevating apparatus which is provided on the bottom of the bracket of the hood main body, including a winding reel around which a lifting chain is wound and a motor driving the winding reel, and in which the other end of the lifting chain wound around the winding drum is connected with the upper end of the lowest hood tube where a hood is provided, to thereby extend or contract the hood tube by rotation of the winding reel, in which the elevating apparatus is driven by a wireless remote controller.

2. The exhauster for a roaster according to claim 1, further comprising a diffuser playing a role of an oil receiver which is installed in a hood which is provided in the lowest hood tube with which a hood is connected by the medium of the bracket and an adjusting bolt.

3. The exhauster for a roaster according to claim 1, wherein the hood is configured to have a plurality of vanes which are neighbor-arranged so as to be folded in the circumferential direction, in which the external diameter is expanded or reduced in the circumferential direction.

4. The exhauster for a roaster according to claim 2, wherein the hood is configured to have a plurality of vanes which are neighbor-arranged so as to be folded in the circumferential direction, in which the external diameter is expanded or reduced in the circumferential direction.

5. The exhauster for a roaster according to claim 1, wherein bolting holes are formed in both ends of the bracket of the hood main body, stay bolts on all the surfaces of which screw threads are formed are engaged with a pair of screw nuts which are installed in the upper and lower portions around the bracket, and the upper ends of the stay bolts are spirally engaged on the wall surface of a ceiling where the exhauster is installed and then fixed by screw nuts, to thereby minutely adjust height of the hood main body including the bracket and the hood tube according to adjustment of the tightening force of the screw nuts.

6. The exhauster for a roaster according to claim 1, further comprising a limit switch having a connection structure which is connected with a motor which is installed in the connection portion at which the hood main body and the hood tube are connected, and a remote sensor having an electrical connection structure between the motor and the limit switch which is installed at the side of the hood main body, to thereby be possible to perform a remote control.

Description:

CROSS-REFERENCE TO RELATED PATENT APPLICATION

This application claims the benefit of Korean Utility Model Registration Application No. 20-2005-0029123, filed on Oct. 12, 2005, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an exhauster for a roaster which can exhaust the smell and the smoke which are generated when the meat is burnt in a restaurant, etc., to the outside of the restaurant, and more particularly, to an exhauster for a roaster, in which a plurality of hood pipes can be telescopically combined to form a hood tube in a multi-stage, and thus the hood tube is completely inserted into a hood main body, and since the exhauster including the hood tube is completely buried and installed into a ceiling slab, to then be hidden, the whole aesthetics in the restaurant are prevented from being degraded due to the exposure of the exhauster.

2. Description of the Related Art

In general, an exhauster for a roaster which can exhaust the smell and the smoke which are generated when the meat is burnt in a restaurant, etc., is provided in the restaurant, etc.

A conventional exhauster which is generally used in a restaurant etc., is a wall-mounted ventilation fan. At least one ventilation fan is installed on an opening formed by boring the surface of a wall. The ventilation fan is driven to discharge the polluted indoor air continuously to the outside. However, the wall-mounted fan has a limitation to completely exhaust the smoke and smell which are consistently generated in the process of roasting the meat. As a result, the smoke including foreign matters remains in the indoor air to thus make the indoor air polluted and sticks to the indoor wall to thus impair the interior appearance.

Therefore, in order to solve the above-described problems, there has been proposed an exhauster for a roaster in which the smoke and the smell generated in the process of burning the meat are locally discharged so that the smoke and smell including the foreign matters do not remain in the indoor air.

There have been proposed a variety of configurations through a number of known documents including Korean Utility Model Registration Nos. 0329846 and 0391741 as exhausters for a roaster. In most cases, a hood tube whose height is controlled is disposed adjacently at the upper side of the roaster which is put on a dining table. The hood tube is connected to a hood main body having a built-in fan and fixed on a ceiling. The smoke and smell generated when the meat is burnt are inhaled locally by a fan blowing force in the hood main body, and then discharged out.

A configuration of a conventional exhauster for a roaster will be described in more detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a conventional exhauster for a roaster, and FIG. 2 is a cross-sectional view of FIG. 1. Referring to FIGS. 1 and 2, the conventional exhauster for a roaster includes a hood tube 2 which is installed above a roaster 1, a hood main body 3 to which the upper end of the hood tube 2 is connected and fixed on a ceiling, an elevating apparatus 4 which is built in the hood main body 3, and a driving portion 5 which is installed at the side portion of the hood main body 3 for driving the elevating apparatus 4.

The hood tube 2 includes a hood 20 which is installed at a distance from and above the roaster 1, a movable tube 22 to which the hood 20 is connected, and a stationary tube 24 in which the movable tube 22 moves telescopically.

The hood main body 3 is of a hollow cylindrical form at one side of which a connection pipe 30 is provided to connect with a main duct and at the lower side of which the upper end of the stationary tube 24 is fitted and fixed. A fan 32 for inhaling the smell and smoke is built in the hood main body 3. The elevating apparatus 4 which is driven by the driving portion 5 is installed in the lower portion of the fan 32.

Here, as shown in FIG. 2, the elevating apparatus 4 includes a winding drum 40 which is fixed to an extended axis from the shaft of the driving motor 50 of the driving portion 5, and a wire 42 which is wound around the winding drum 40. Here, one end of the wire 42 is fixed to the winding drum 40, and the other end thereof is fixed to one side of the movable tube 22. Accordingly, the movable tube is reeled on the winding drum 40 by the driving of the winding drum 40 by the motor and thus the movable tube 22 is wound up and down to contract and expand the movable tube 22 with respect to the stationary tube 24.

That is, in the above-described conventional exhauster for a roaster, the movable tube 22 is contracted and expanded in the stationary tube by the operation of the elevating apparatus 4 including the motor. If the height of the hood 20 is appropriately controlled from the roaster 1, the smoke and smell which are generated when burning the meat can be effectively inhaled and discharged out.

However, in the case of the conventional exhauster for the roaster as described above, the stationary tube 24 connected to the hood main body 3 cannot be completely embedded in the hood main body 3. As a result, even in the case that the movable tube 22 has been completely folded, the hood tube 2 which includes the movable tube 22 and the stationary tube 24 is of a structure of protruding downwards. That is, as shown in FIG. 2, the fan 32 is built in the hood main body 3, and the elevating apparatus 4 including the winding drum 40 is built in the lower portion of the fan 32. Therefore, although the wire 42 is completely pulled and thus the hood tube 2 including the movable tube 22 and stationary tube 24 is completely folded up, the hood tube 2 is not completely inserted into the hood main body 3, and cannot but be protruded to the outside. Therefore, although a ceiling slab (not shown) is installed at a distance from the ceiling wall in order to cover the hood main body 3, the hood tube 2 cannot help being found in the indoor space of the dining room and thus the internal environment of the dining room is indecent owing to the protruded hood tube.

Moreover, as shown in FIG. 2 which is a partially enlarged view of the structure of connecting the movable tube 22 and the stationary tube 24, flanges 220 and 240 are protruded outwardly and inwardly from the upper end of the movable tube 22 and the lower end of the stationary tube 24, respectively. Even at the time of the maximum expansion of the hood tube 2, the movable tube 22 is not easily seceded from the stationary tube 24. Accordingly, gaps may be formed between the connection portion of the respective tubes, and the polluted materials which are put through the hood tube 2 may flow and leak via the joint portions to then be unable to be clean.

In the meantime, the oil, fat and the burnt deposit included in the smoke which is generated when roasting the meat is adhered and condensed to the inner portion of the hood tube 2 and they are condensed to some extent and then expanded and flow down the inner portion of the hood tube 2, to then fall over the meat to cause an insanitary problem to arise.

SUMMARY OF THE INVENTION

To solve the above problems of the conventional art, it is an object of the present invention to provide an exhauster for a roaster, in which a plurality of hood pipes can be telescopically combined to form a hood tube in a multi-stage, to thus make the hood tube completely inserted into a hood main body, a fan built in a hood main body fixed on a ceiling is provided at the side of the hood main body, a space portion in which the completely folded hood tube can be completely buried in the hood main body is formed, and since the exhauster including the hood tube is completely buried and installed into a ceiling slab, to then be hidden, the whole aesthetics in the restaurant are prevented from being degraded due to the exposure of the exhauster.

It is another object of the present invention to provide an exhauster for a roaster in which packings are applied to connection portions of the respective pipes to thereby prevent a gap from being formed between the connected hood pipes and the leak of the foreign matters from occurring via the connection portions.

It is still another object of the present invention to provide an exhauster for a roaster in which a diffuser playing a role of an oil receiver is installed in the lowest hood tube with which a hood is connected, to thereby prevent the contaminant streaming down through the inner portion of the hood tube from falling over a roaster roasting the meat, and thus provide a sanitary dining environment.

To accomplish the above object of the present invention, there is provided an exhauster for a roaster comprising:

a hood tube in which a plurality of hood pipes can be combined so as to be folded in a multi-stage, and packings are applied to connection portions of the respective pipes to thereby prevent a gap from being formed between the connected hood pipes and the leak of the foreign matters from occurring;

a hood main body having a space portion of a vertical direction length so that the contracted hood tube is completely inserted when the hood tube has been completely contracted, an exhaust tube having a fan which is installed at an axial portion in communication with the hood main body, and a bracket which is installed at the upper end thereof to then be fixed on a ceiling; and

an elevating apparatus which is provided on the bottom of the bracket of the hood main body, including a winding reel around which a lifting chain is wound and a motor driving the winding reel, and in which the other end of the lifting chain wound around the winding drum is connected with the upper end of the lowest hood tube where a hood is provided, to thereby extend or contract the hood tube by rotation of the winding reel, in which the elevating apparatus is driven by a wireless remote controller.

Here, a diffuser playing a role of an oil receiver is further installed in a hood which is provided in the lowest hood tube with which a hood is connected by the medium of the bracket and an adjusting bolt.

In addition, the hood is configured to have a plurality of vanes which are neighbor-arranged so as to be folded in the circumferential direction, in which the external diameter is expanded or reduced in the circumferential direction.

Moreover, a limit switch having a connection structure which is connected with a motor is further installed in the connection portion at which the hood main body and the hood tube are connected, and a remote sensor having an electrical connection structure between the motor and the limit switch is further installed at the side of the hood main body, to thereby be possible to perform a remote control.

Moreover, bolting holes are formed in both ends of the bracket of the hood main body, stay bolts on all the surfaces of which screw threads are formed are engaged with a pair of screw nuts which are installed in the upper and lower portions around the bracket, and the upper ends of the stay bolts are spirally engaged on the wall surface of a ceiling where the exhauster is installed and then fixed by screw nuts, to thereby minutely adjust height of the hood main body including the bracket and the hood tube according to adjustment of the tightening force of the screw nuts.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other objects and advantages of the present invention will become more apparent by describing the preferred embodiment thereof in more detail with reference to the accompanying drawings in which:

FIG. 1 is a perspective view showing a conventional exhauster for a roaster;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3. is a side sectional view showing an overall configuration of an exhauster for a roaster according to the present invention;

FIG. 4 is an enlarged view showing essential portions of a hood tube connection portion for use in an exhauster for a roaster according to the present invention;

FIG. 5 is an enlarged view showing essential portions of a hood tube elevating apparatus of an exhauster for a roaster according to the present invention;

FIG. 6 is a plan view of FIG. 5; and

FIG. 7 shows a condition of installing and using an exhauster for a roaster according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

An exhauster for a roaster according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 3. is a side sectional view showing an overall configuration of an exhauster for a roaster according to the present invention. As shown in FIG. 3, the exhauster for a roaster according to the present invention includes a hood body 7 at the side of which a fan 74 is equipped, a hood tube 50 which is combined in the lower portion of the hood body 7, and an elevating apparatus 8 elevating the hood tube 50.

First, the hood tube 50 is a suction tube which inhales the smoke and smell generated through a roaster in which a plurality of pipes are telescopically combined so as to be folded in a multi-stage. A hood 6 having an extrinsic expansion section is connected at the lower end of the pipe positioned at the lowest bottom in order to collect the smoke and smell which are generated when burning the meat.

Here, as shown in FIG. 4, flanges 52a and 52b are formed outwardly and inwardly in the upper and lower end portions of the respective tubes, respectively. Accordingly, although the hood tube 50 is extended at the maximum, the respective tubes are not seceded from each other. Packing 55 is interposed between the connection portions of the respective pipes, that is, one pipe flange 52a and the other pipe flange 52b with which the one pipe flange 52a is fitted, to thereby prevent a gap from being formed and the foreign matters from leaking.

In addition, a diffuser 9 playing a role of an oil receiver is further installed in the hood 6 which is provided in the lowest hood tube with which the hood 6 is connected by the medium of the bracket 92 and an adjusting bolt 94. The pollution materials and condensed oil or fat deposited in the inner portion of the pipe flows down along the pipe, and finally collected by the diffuser 9, to thereby prevent the polluted materials or condensed oil or fat from falling down to the meat put on the roaster.

Next, the hood main body 7 is installed in communication with an exhaust duct (not shown) prepared in an indoor ceiling. An exhaust pipe 72 is installed at the side of the hood main body 7 in communication with the hood main body 7, and a fan 74 is installed at the upper side of the exhaust pipe 72. Accordingly, differently from the conventional hood main body having a fan at the inner center of the hood main body, the hood main body 7 has a space portion 70 of a vertical direction length therein. The upper portion of the highest pipe in the hood tube 50 is connected to the lower portion of the hood main body 7. When the hood tube 50 has been completely contracted, the hood main tube 7 has the space portion 70 of a vertical direction length so that the contracted hood tube 50 can be completely inserted. A bracket 76 is installed in the upper end of the hood main body 7, so as to be fixed to a ceiling.

In the meantime, the elevating apparatus 8 is provided on the bottom of the bracket 76 of the hood main body, including a winding reel 84 around which a Iifting chain 82 is wound and a motor 86 driving the winding reel 84.

Here, as shown in FIGS. 5 and 6, the winding reel 84 is rotatably mounted on the bottom of the bracket 76 by the medium of a pair of bearings 85. The motor 86 is axially connected with the axial line extended from the axis of the winding reel 84, to thereby drive the winding reel 84. The other end of the Iifting chain 82 wound around the winding reel 84 is connected to the upper side of the lowest pipe where the hood is provided in the hood tube. According to the forward and backward rotation of the winding reel 84, the lifting chain 82 is pulled or released to thereby expand or contract the hood tube 50.

Moreover, bolting holes 77 are formed in both ends of the bracket 76 of the hood main body 7 in which the elevating apparatus 8 is installed. Stay bolts B on all the surfaces of which screw threads are formed are engaged with a pair of screw nuts N-1 which are installed in the upper and lower portions around the bracket 76, through the bolting holes 77. The upper ends of the stay bolts B are spirally engaged on the wall surface of a ceiling where the exhauster is installed and then fixed by screw nuts N-2, to thereby minutely adjust height of the hood main body 7 including the bracket 76 and the hood tube 5 from the roaster when the hood tube 5 is expanded at the maximum according to adjustment of the tightening force of the screw nuts N-1 and N-2 (see FIGS. 5 and 6).

Operation of the exhauster according to the present invention having the above-described structure and the function and the effect thereof will be described with reference to FIG. 7.

FIG. 7 shows a condition of installing and using an exhauster for a roaster according to the present invention. As shown in FIG. 7, a hood main body 7 is fixed on a ceiling so that a hood tube 50 is disposed adjacently and spaced from above the roaster 1 prepared at the center of a dining table.

Here, a fan 74 installed at the upper side of the exhaust pipe 72 in the hood main body 7 communicates with a main duct D installed in a ceiling through a flexible pipe F. The hood tube 5 is telescopically expanded or contracted by driving of the lifting chain 82, to thereby be suspended on the ceiling with a certain distance spaced from the roaster 1 installed at the dining table.

If the fan is activated in this state, the smoke and smell generated in the process of burning the meat which is placed on the roaster are compulsively inhaled and discharged out to the outside via the hood main body 7, the exhaust pipe 72, the flexible pipe F and the main duct D.

An interval between the roaster and the hood 6 covering the upper portion of the roaster can be controlled according to selection of a user in order to control an air suction amount. In this case, an on/off switch connected to the motor 86 is manipulated to operate to control the height of the hood tube 50. Preferably, a limit switch 10 having an electrical connection structure which is connected with the motor is installed at a connection portion where the hood main body 7 and the hood tube 5 are connected. A remote sensor 11 having an electrical connection structure between the motor and the limit switch 10 is installed at the side of the hood main body 7. Accordingly, the switch connected with the motor can be manipulated, and the elevating height of the hood tube 50 can be controlled through a remote controlling operation at a remote distance, as well.

Referring to FIGS. 5 to 7, the elevation operation of the hood tube 50 will be described below in more detail. The motor 86 is driven according to the switching operation, and the winding reel 84 is rotated in the forward direction to thus release the lifting chain 82. Accordingly, the hood tube 50 which is combined in a multi-stage goes down by the weight. As a result, the hood tube 50 is unfolded stepwise and extended and then a separation distance between the roaster 1 and the hood tube 50 becomes narrow. Here, packings 55 are interposed between the connection portions of the respective pipes to thereby prevent a gap from being formed between the pipes and the foreign matters from leaking, which may be generated between the respective pipes during elevating the hood tube 50.

On the contrary, if the winding reel 84 is rotated in the reverse direction and thus the lifting chain 82 is wound around the winding reel 84, the hood tube 50 is telescopically folded stepwise from the pipe of the hood tube 50 which is positioned at the lowest portion of the hood tube 50, to then be contracted toward the ceiling. As illustrated in FIG. 7, when the hood tube 50 has been completely contracted, the hood tube 50 is completely buried and inserted into the hood main body 7. Differently from the conventional configuration of the exhauster having a fan and an elevating apparatus in the hood main body 7, since the fan 74 is provided at the side of the hood main body 7 and thus the space portion 70 into which the hood tube 50 can be completely inserted is provided in the hood main body 7 in the present invention, the hood tube 50 is completely buried and inserted into the hood main body 7.

Accordingly, as shown in FIG. 7, if a roof slab 110 used for the ceiling finish is installed at a height distant from the ceiling wall 100 at which the lowest end portion of the hood main body 7 is positioned, a distance separated between the roof slab 110 and the ceiling wall 100 need not be long. As a result, the roaster exhauster which includes a fan can be completely buried in the ceiling side so as not to be protruded toward the indoor side.

Here, the hood 6 which is mounted at the lowest end of the hood tube 50 is configured to have a plurality of vanes which are neighbor-arranged so as to be folded in the circumferential direction, in which the external diameter is expanded or reduced in the circumferential direction. Not only the above-described hood tube 50 but also the hood 6 are completely inserted into the roof slab 110 so as not to be exposed to the out side.

In the meantime, a diffuser 9 playing a role of an oil receiver 90 which is installed in the hood 6 is provided in the lowest hood tube with which the hood 6 is connected by the medium of the bracket 92 and an adjusting bolt 94. The pollution materials and condensed oil or fat (or condensed water produced during exhaust of air) deposited in the inner portion of the pipe flows down along the pipe, and finally collected by the diffuser 9, to thereby prevent the polluted materials or condensed oil or fat from falling down to the meat put on the roaster. Accordingly, a more sanitary dining environment can be provided.

Furthermore, the diffuser 9 not only plays a role of an oil receiver but also has a function of controlling an amount of air inhaled through the hood tube 50. That is, if an amount of tightening the nuts on the adjusting bolt 94 is controlled to thereby change a vertical height of the diffuser 9, a gap between the outer circumference of the diffuser 9 and the inner circumferential surface of the hood 6, that is, an area of a path through which air is inhaled is controlled.

As described above, according to an exhauster for a roaster, a plurality of hood pipe scan be telescopically combined to form a hood tube in a multi-stage, to thus make the hood tube completely inserted into a hood main body, a fan built in a hood main body fixed on a ceiling is provided at the side of the hood main body, a space portion in which the completely folded hood tube can be completely buried in the hood main body is formed, and since the exhauster including the hood tube is completely buried and installed into a ceiling slab, to then be hidden, the whole aesthetics in the restaurant are prevented from being degraded due to the exposure of the exhauster.

Moreover, according to an exhauster for a roaster, packings are applied to connection portions of the respective pipes to thereby prevent a gap from being formed between the connected hood pipes and the leak of the foreign matters from occurring via the connection portions.

Further, according to an exhauster for a roaster, a diffuser playing a role of an oil receiver is installed in the lowest hood tube with which a hood is connected, to thereby prevent the contaminant streaming down through the inner port Ion of the hood tube from falling over a roaster roasting the meat, and thus provide a sanitary dining environment.

As described above, the present invention has been described with respect to a particularly preferred embodiment. However, the present invention is not limited to the above embodiment, and it is possible for one who has an ordinary skill in the art to make various modifications and variations, without departing off the spirit of the present invention.