US20210381696A1 - Hoods for extracting fumes - Google Patents

Hoods for extracting fumes Download PDF

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Publication number
US20210381696A1
US20210381696A1 US17/288,449 US201917288449A US2021381696A1 US 20210381696 A1 US20210381696 A1 US 20210381696A1 US 201917288449 A US201917288449 A US 201917288449A US 2021381696 A1 US2021381696 A1 US 2021381696A1
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US
United States
Prior art keywords
frame
hood
receptacle
lock member
connecting portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/288,449
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English (en)
Inventor
Maurizio CIMARRA
Cristiana GIGLIONI
Luca Donati
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elica SpA
Original Assignee
Elica SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Elica SpA filed Critical Elica SpA
Assigned to ELICA S.P.A. reassignment ELICA S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CIMARRA, Maurizio, DONATI, LUCA, Giglioni, Cristiana
Publication of US20210381696A1 publication Critical patent/US20210381696A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2071—Removing cooking fumes mounting of cooking hood

Definitions

  • the present invention relates to a fume extractor hood.
  • this hood is preferably but without limitation designed to extract cooking fumes from food.
  • a hood of this type suitably finds application in kitchens of canteens, restaurants, hotels, private homes and other places, as defined in the preamble of claim 1 .
  • the hood of the present invention is of the type designed to at least partially fit in a receptacle formed in a ceiling.
  • This ceiling has an outer surface that faces the room occupied by users, e.g. the kitchen.
  • the ceiling further has an inner surface, hidden from view of hood users, and at least partially defines the aforementioned receptacle.
  • the inner surface is opposite to the outer surface.
  • Cooking fume extractor hoods that can fit at least partially in a receptacle formed in a ceiling are known in the art, also as ceiling hoods.
  • Prior art hoods generally comprise a frame that partially defines a suction duct. This frame also defines a suction opening, through which cooking fumes are drawn into the suction duct, filtered and exhausted.
  • the frame has at least one pair of opposite sides. If the opening has a rectangular shape, then the frame comprises two pairs of opposite sides. A first pair of opposite sides is defined by the two long sides of the frame, and a second pair is defined by the two short sides.
  • prior art hoods the frame is designed to at least partially fit in the receptacle.
  • prior art hoods comprise spring-actuated lock members at the long sides of the frame.
  • prior art hoods comprise two lock members at each side.
  • each of the lock members comprises a lug that is designed to retract into a perimeter of the frame and allow the frame to fit into the receptacle. Once the frame has been positioned, the lug is deployed to rest on the inner wall of the receptacle. Then the frame is fastened to the ceiling by means of screws.
  • the operator must use both hands to disengage the lugs, whereby the support of at least one more person is needed to hold the hood as it is being removed.
  • the technical purpose of the present invention is to provide a cooking fume extractor hood that can obviate the aforementioned prior art drawbacks.
  • the object of the present invention is to provide a fume extractor ood that can allow a single operator to remove the hood from the ceiling.
  • a cooking fume extractor hood is of the type designed to at least partially fit in a receptacle formed in a ceiling.
  • This ceiling has an outer surface and an inner surface opposite to the outer surface. The inner surface at least partially defines the receptacle.
  • the hood of the present invention comprises a frame that has at least one pair of opposite sides.
  • the frame is configured to at least partially fit in the receptacle.
  • the frame has a center axis is perpendicular to the sides.
  • the hood also comprises at least a lock member at one of the sides of the frame.
  • the lock member comprises a deployable portion adapted to alternate between a deployed configuration and a retracted configuration.
  • the deployable portion rests on the inner surface of the ceiling to hold the frame in the receptacle.
  • the deployable portion is pulled back into a perimeter of the frame, to allow the frame to be moved into and out of the receptacle.
  • the lock member comprises at least one elastic element associated with the deployable portion to bias the latter from the retracted configuration to the deployed configuration.
  • the lock member comprises a grip element connected to the deployable portion.
  • This grip element is able to move along the center axis of the frame. Instead of or in addition to the above, the grip element is able to rotate about a longitudinal main axis of extension which is substantially parallel to the center axis.
  • the grip element is also placed in a position that allows access thereto when the frame fits in the receptacle, The grip element is adapted to be actuated to pull the deployable portion from the deployed configuration back to the retracted configuration.
  • the hood of the invention solves the aforementioned technical problem because the grip element allows the deployable portion to be easily pulled back by the lock member, particularly using one hand. Thus, the operator can use the other hand to hold the hood and is therefore able to complete the disassembly process without the help of another person.
  • FIG. 1 is a bottom perspective view of a first embodiment of a fume extractor hood of the present invention
  • FIG. 2 is a top perspective view of the hood of FIG. 1 ;
  • FIG. 3 is a sectional side view of a detail of the hood of FIGS. 1 and 2 , in a first operating configuration
  • FIG. 4 is a sectional side view of the detail of FIG. 3 in a second operating configuration
  • FIG. 5 is a sectional side view of a detail of FIG. 3 in a third operating configuration
  • FIG. 6 is a sectional side view of a second embodiment of a fume extractor hood of the present invention.
  • FIG. 7 is a sectional side view of a detail of the hood of FIG. 1 , in a first operating configuration
  • FIG. 8 is a sectional side view of the detail of FIG. 7 in a second operating configuration
  • FIG. 9 is a sectional side view of a detail of FIG. 7 in a third operating configuration
  • FIG. 10 is a sectional side view of a detail of FIG. 7 in a fourth operating configuration.
  • FIG. 11 is a sectional side view of a detail of FIG. 7 in a fifth operating configuration.
  • numeral 1 generally designates a fume extractor hood of the present invention.
  • the hood 1 is particularly of the type designed to at least partially fit in a receptacle 100 formed in a ceiling 101 .
  • the ceiling 101 has an outer surface 101 a and an inner surface 101 b opposite to the outer surface 101 a .
  • the receptacle 100 is at least partially defined by the inner surface 101 b.
  • the outer surface 101 a is the surface of the ceiling 100 that is exposed to the view of people underneath, regardless of whether the ceiling 101 is located indoors, within a building, or outdoors, such as in a porch.
  • the inner surface 101 b is the surface that is generally hidden to people below the ceiling 101 .
  • the term “ceiling” is intended to designate any surface defining the top of a room or environment. Therefore, this term also encompasses other architectural or furnishing elements such as false ceilings or furniture that possibly locally define the top of the environment in which they are located.
  • the hood 1 comprises a frame 2 .
  • the frame 2 is designed to at least partially fit in the receptacle 100 formed in the ceiling 101 .
  • the frame has at least one pair of opposite sides 3 a , 3 b . All the sides 3 a , 3 b of the frame 2 define an outer perimeter of the frame 2 .
  • the frame 2 has a rectangular perimeter, and comprises two pairs of opposite sides 3 a , 3 b .
  • a first pair of opposite sides 3 a is defined by the two long sides 3 a of the frame, and a second pair of sides 3 b is defined by the two short sides 3 b .
  • each long side 3 a is contiguous to the two short sides 3 b and is opposite the other long side 3 a .
  • each short side 3 b is contiguous to the two long sides 3 a and is opposite the other short side 3 b .
  • the frame 2 has a center axis “V”, which extends substantially perpendicular to the sides 3 a , 3 b . In operation, the center axis “V” extends in a vertical direction.
  • the frame 2 may have a perimeter having a shape other than a rectangle.
  • the above indications concerning the rectangular frame 2 apply to the sides 3 a and 3 b , but the sides 3 a , 3 b will be identified differently.
  • the sides 3 a , 3 b will be defined by arcs of a circle.
  • the relative positions of the sides of the frame 2 may be other than those exemplified in FIGS. 1 and 2 and 6 .
  • the term “opposite” as previously used concerning the rectangular configuration shall be interpreted in a different way.
  • two sides are deemed to be opposite to each other simply when they are not contiguous.
  • each side would have three opposite sides, i.e. is all the sides except those contiguous thereto.
  • the frame 2 further comprises a base 4 which, in operation, is placed below and projects out of the ceiling 101 .
  • the base 4 has an outer surface 4 a that is designed to be visible by people underneath the hood 1 .
  • the base 4 further has an inner surface 4 b , opposite to the outer surface 4 a which, in operation, is hidden to people underneath the hood 1 .
  • the frame 2 has a suction opening 5 at the base 4 , particularly at the outer surface 4 a .
  • the opening 5 generally faces a cooktop (not shown), which is designed to draw in the fumes generated during operation of such cooktop to cook food.
  • the hood 1 further has a suction duct 6 , through which the fumes extracted through the opening are channeled by the hood 1 .
  • the frame 2 further at least partially defines the duct 6 .
  • the duct 6 of the hood 1 may extend in the vertical direction identified by the center axis “V” of the frame 2 .
  • the frame 2 has at least one housing (not shown) for a filter.
  • the hood 1 generally comprises at least one first housing for a grease filter and at least one second housing for an odor filter. Since the fumes extracted through the opening 5 are channeled through the housings to be filtered, these housings are deemed to be part of the suction duct 6 .
  • the hood 1 may comprise a cover element 16 which is associated with the suction opening 5 to at least partially close it.
  • the cover element 16 may be embodied by a panel 17 that partially lies on the opening 5 . This panel is spaced apart from the frame 2 , to thereby leave one or more free peripheral slits 18 , allowing fume extraction and minimizing the aesthetic impact of the hood 1 .
  • the hood 1 comprises at least one lock member 9 , which has the purpose to hold the frame 2 in the receptacle 100 of the ceiling 101 , by particularly resting on the aforementioned inner surface 101 b .
  • This lock member 9 is placed at one of the aforementioned sides 3 a , 3 b of the frame 2 .
  • the hood 1 comprises a plurality of such lock members 9 , which are placed on two opposite sides 3 a , 3 b of the frame 2 .
  • the hood 1 comprises four lock members 9 , evenly arranged on the long sides 3 a of the frame 2 .
  • each lock member 9 comprises a support 12 attached to the frame 2 .
  • This support 12 extends away from the inner surface 4 b of the base 4 , substantially at the side 3 a , 3 b of the frame 2 on which the respective lock member 9 is mounted. It shall be noted that the support 12 is located entirely inside the outer perimeter of the frame 2 .
  • each lock member 9 comprises a deployable portion 10 .
  • Such deployable portion 10 has a direction of deployment “D” perpendicular to the side 3 a , 3 b with the respective lock member 9 .
  • the direction of deployment “D” is also perpendicular to the center axis “V” of the frame 2 .
  • the deployable portion 10 is designed to alternate between a deployed configuration and a retracted configuration.
  • the deployable portion 10 rests on the inner surface 101 b of the receptacle 100 , to thereby hold the frame 2 in the receptacle 100 .
  • the deployable portion 10 is pulled back into the outer perimeter of the frame 2 .
  • the frame 2 may be moved into and/or out of the receptacle 100 .
  • the lock member 9 comprises a connecting portion 30 .
  • This connecting portion 30 has the purpose of joining the deployable portion 10 to the frame 2 , in particular to the support 12 of its respective lock member 9 .
  • the connecting portion 30 has first 30 a and second 30 b opposite ends.
  • the second end 30 b is connected to the deployable portion 10 .
  • the connecting portion 30 is connected to the deployable portion 10 at a hinge axis “A”. This hinge axis “A” is substantially perpendicular to the center axis “V” and to the direction of deployment “D”.
  • the first end 30 a of the connecting portion 30 is rotatably attached to the frame 2 , in particular to the support 12 , to rotate about an additional hinge axis “K” parallel to the hinge axis “A”.
  • the connecting portion 30 slides along a longitudinal axis “B” substantially parallel to the center axis “V”.
  • the deployable portion 10 is embodied by a lug 13 that is pivotally connected to the connecting portion 30 .
  • the lug 13 has first 13 a and second 13 b opposite ends.
  • the first end 13 a of the lug 13 is pivotally connected to the connecting portion 30 , to pivot relative to the hinge axis “A”.
  • the second end 13 b is designed to contact the inner surface 101 b of the ceiling 101 .
  • the lug 13 is pivoted relative to the support 12 to extend partially beyond the outer perimeter of the frame 2 . This allows the second end 13 b of the lug 13 to rest on the aforementioned inner surface 101 b of the ceiling 101 .
  • the lock member 9 comprises at least one elastic element 11 associated with the deployable portion 10 to bias the latter from the retracted configuration to the deployed configuration. More in detail, the elastic element 11 is operable between the connecting portion 30 and the deployable portion 10 to open them apart.
  • the elastic element 11 is embodied by a torsion spring 14 disposed between the lug 13 and the connecting portion 30 , particularly at the hinge axis “A”.
  • the lock member 9 comprises a grip element 15 .
  • This grip element 15 is connected to connecting portion 10 between the ends 30 a , 30 b .
  • the grip element 15 also identifies the aforementioned longitudinal axis “B”.
  • the grip element 15 is connected to the deployable portion 10 and is placed in a position that allows access thereto when the frame 2 fits in the receptacle 100 .
  • the grip element 15 may be actuated to pull the deployable portion from the deployed configuration back to the retracted configuration.
  • the grip element 15 shall be deemed to be accessible if its use requires at most removal of parts of the hood 1 , such as the cover element 16 , which can be easily removed as part of ordinary maintenance and, in particular, with the frame 2 fitting in the receptacle 101 .
  • the grip element 15 has at least one portion placed in front of the frame 2 and particularly of all the components of the hood 1 which can be only disconnected from the frame 2 when the latter does not fit in the its receptacle 100 in the ceiling 101 . Further details about the grip element 15 will be provided hereinbelow.
  • the lock member 9 comprises a pin 32 that is pivotally connected to the connecting portion 30 between the ends 30 a , 30 b .
  • the pin 32 is designed to pivot about an axis of rotation “P”.
  • the axis of rotation “P” is parallel to the hinge axes A, K about which the connecting portion 30 is hinged.
  • the lock member 9 has a sleeve 25 .
  • This sleeve 25 is rigidly joined to the connecting portion 30 and is configured to translate along the grip element 15 .
  • This screw 33 is rigidly joined to the support 12 of the lock member 9 , to be screwed in and out of the support 12 .
  • the screw 33 is oriented parallel to the center axis “V” and hence in a vertical direction.
  • the axis of rotation of the screw 33 defines the aforementioned longitudinal main axis of extension
  • the screw 33 can be also screwed in and out of the pin 32 to move the pin 32 along the center axis “V”.
  • the screw 33 By screwing the screw 33 in and out, the user will be able to act on the lock member 9 from outside the frame 2 .
  • the user By varying the position of the pin 32 along the center axis “V”, the user will be able to pivot the connecting portion 30 relative to the frame 2 .
  • the screw 33 may also be screwed in the sleeve 25 to move the latter along the longitudinal axis “B”.
  • the sleeve 25 has a threaded inner surface 25 a.
  • the lock member 9 has a projection 31 , which is adapted to push the deployable portion 10 toward the interior of the frame 2 , thereby causing it to alternate from the deployed configuration to the retracted configuration. More in detail, the projection 31 is placed on the deployable portion 10 , opposite to the connecting portion 30 , and protnides outside of the frame 2 . In particular, the projection 31 is formed proximate to the connecting portion 30 , and is more particularly placed substantially level with the first end 13 a of the lug 13 . In order to interact with the projection 31 , the support 12 has an abutment zone 34 .
  • Such abutment zone 34 faces the projection 31 , such that the projection 31 will abut the abutment zone 34 to push the deployable portion 10 into the retracted configuration.
  • the above described projection 31 is omitted. Therefore, the abutment zone 34 directly faces the deployable portion 10 . As the deployable portion 10 rises, it directly abuts the abutment portion 34 , to be pushed by latter into the retracted configuration.
  • the deployable portions 10 are pushed into the retracted configuration but once the lock members 9 extend past the inner surface 101 b , they are pushed into the deployed configuration by the elastic elements 11 .
  • each lock member 9 In order to pull the hood 1 out, the user disengages each lock member 9 by acting on its respective screw 33 .
  • the pin 32 In particular, in the first embodiment, the pin 32 is pushed upwards by screwing the screw out. As a result, the connecting portion 30 will be pivoted upwards, and the projection 31 will be moved to contact with the abutment zone 34 .
  • the abutment zone 34 By further moving the pin 32 upwards, the abutment zone 34 will push the protrusion 31 to thereby impart an inward pivotal motion to the deployable portion 10 , in particular against the elastic action of the elastic element 11 . Then, the deployable portion 10 will be returned into the retracted configuration, which will cease the action of the lock member 9 .
  • the user action on the screw 33 will cause the connecting portion 30 to translate upwards along the longitudinal axis “B”. Then, the deployable portion 10 will move with the connecting portion 30 , until it contacts the abutment zone 34 as shown, for example, in FIG. 7 . As the screw 33 is further screwed in the sleeve 25 , the connecting portion 30 will further translate upwards. Then, the abutment zone 34 will push the deployable portion 10 into the retracted configuration, as shown for example in FIG. 11 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
US17/288,449 2018-10-26 2019-10-09 Hoods for extracting fumes Pending US20210381696A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT201800009820 2018-10-26
IT102018000009820 2018-10-26
PCT/IB2019/058601 WO2020084369A1 (en) 2018-10-26 2019-10-09 Hood for extracting fumes

Publications (1)

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US20210381696A1 true US20210381696A1 (en) 2021-12-09

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ID=65244513

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Application Number Title Priority Date Filing Date
US17/288,449 Pending US20210381696A1 (en) 2018-10-26 2019-10-09 Hoods for extracting fumes

Country Status (5)

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US (1) US20210381696A1 (de)
EP (1) EP3870902A1 (de)
AU (1) AU2019369202A1 (de)
CA (1) CA3114590A1 (de)
WO (1) WO2020084369A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112344407B (zh) * 2020-10-16 2022-01-21 宁波方太厨具有限公司 一种装饰罩安装装置及应用有该安装装置的吸油烟机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973177A (en) * 1960-01-14 1961-02-28 Pittsburgh Reflector Company Troffer side support
US5077650A (en) * 1990-10-31 1991-12-31 Frank Cestari Mounting system for recessed lighting fixtures
US6132069A (en) * 1996-07-19 2000-10-17 Moriyama Sangyo Kabushiki Kaisha Light body, light body mounting base and embedded lighting equipment
US20060102571A1 (en) * 2004-07-16 2006-05-18 Graeme Foy Releasable mounting apparatus
US20120281410A1 (en) * 2009-12-08 2012-11-08 Traxon Technologies Ltd. Illuminating Device and Structure with Illuminating Device
DE102014117377A1 (de) * 2014-11-27 2016-06-02 Miele & Cie. Kg Dunstabzugshaube und Verfahren zum Befestigen
US9913013B1 (en) * 2016-10-24 2018-03-06 Bose Corporation Device for installation and removal of a ceiling speaker system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9016933U1 (de) * 1990-12-14 1991-03-07 Bosch-Siemens Hausgeräte GmbH, 8000 München Einbau-Dunstabzugshaube
CN203364221U (zh) * 2013-08-02 2013-12-25 广东奥特龙电器制造有限公司 一种嵌入式抽油烟机
DE102014205901B4 (de) * 2014-03-28 2019-05-23 H4X E.U. Leuchte
DE102018203738A1 (de) * 2018-03-13 2019-09-19 BSH Hausgeräte GmbH Befestigungsvorrichtung für eine Lüftungsvorrichtung und Lüftungsvorrichtung
ES2817853T3 (es) * 2018-04-11 2021-04-08 Elica Spa Campana extractora de humos

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2973177A (en) * 1960-01-14 1961-02-28 Pittsburgh Reflector Company Troffer side support
US5077650A (en) * 1990-10-31 1991-12-31 Frank Cestari Mounting system for recessed lighting fixtures
US6132069A (en) * 1996-07-19 2000-10-17 Moriyama Sangyo Kabushiki Kaisha Light body, light body mounting base and embedded lighting equipment
US20060102571A1 (en) * 2004-07-16 2006-05-18 Graeme Foy Releasable mounting apparatus
US20120281410A1 (en) * 2009-12-08 2012-11-08 Traxon Technologies Ltd. Illuminating Device and Structure with Illuminating Device
DE102014117377A1 (de) * 2014-11-27 2016-06-02 Miele & Cie. Kg Dunstabzugshaube und Verfahren zum Befestigen
US9913013B1 (en) * 2016-10-24 2018-03-06 Bose Corporation Device for installation and removal of a ceiling speaker system

Also Published As

Publication number Publication date
CA3114590A1 (en) 2020-04-30
EP3870902A1 (de) 2021-09-01
AU2019369202A1 (en) 2021-04-15
WO2020084369A1 (en) 2020-04-30

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