DE102012206255A1 - Vapor extraction device, in particular trough ventilation device - Google Patents

Abstract

The invention relates to a fume extraction device, in particular trough ventilation device, with at least one suction opening (10), at least one closing element (11) for at least temporarily closing the suction opening (10) and a fixing mechanism (3) for fixing the closing element (11). The extractor device is characterized in that the closing element (11) is rotatably mounted in the region of the suction opening (10), that the closing element (11) serves to actuate the fixing mechanism (3) and that the fixing mechanism (3) has fixing means (32, 33, 34) for fixing the closing element (11) in at least two defined rotational positions.

Description

The invention relates to a fume extraction device, in particular a depression ventilation device.

In extractor devices, in particular in Muldenlüftungen, which are also referred to as table vents, an air inlet is provided in the vicinity of the hearth or workplace in the work surface, can enter through the air in the extractor device. For this purpose, a fan is provided below the cooking field level. This fan creates a vacuum, through which the air is sucked from the stove or workplace. In such extractor devices, it is known to provide the air inlet, which is also referred to as the suction port, with a closing element. As a result, the suction opening can be closed, in particular, when the extractor device is not in operation, thus preventing the entry of contaminants into the extractor device. In known extractor devices for this purpose, for example, a sheet whose size is slightly larger than the surface of the suction port, placed on the suction port. In the sheet metal, an engagement opening is preferably provided, in which the user can engage to remove the sheet. Such a closing element is for example in the DE 10 2009 025 038 A1 disclosed. A disadvantage of this type of extractor device is that the opening and closing of the intake opening is expensive, since the sheet must be aligned with the intake and on this or exactly inserted into this and also the user after removing the sheet on another Stow away place.

Object of the present invention is therefore to provide a fume extraction device, in which the suction can be closed in a simple manner, at least temporarily reliable.

The invention is based on the finding that this object can be achieved by a fixing mechanism is provided, via which a closing element can be held in different positions and in which the closing element itself serves as an actuating element for the fixing mechanism.

The object is therefore achieved by a fume extraction device, in particular a depression ventilation device, with at least one suction opening, at least one closing element for at least temporarily closing the suction opening and a fixing mechanism for fixing the closing element. The extractor device is characterized in that the closing element is rotatably mounted in the region of the suction opening, that the closing element serves to actuate the fixing mechanism and that the fixing mechanism comprises fixing means for fixing the closing element in at least two defined rotational positions.

In the context of the invention, a vapor extraction device is understood in particular to be a vapor extraction device for sucking out fumes and vapors from a stove or another workstation in a kitchen. Preferably, the vapor extraction device is understood to be a hollow ventilation device, which will also be referred to below as a tray ventilator or table ventilator. Such a hollow ventilator is characterized in that it is sucked in by air from the stove or hob or in the region of the cooker or hob and is directed downwards, preferably vertically downwards, from the suction opening, via which the air enters the extractor device. The suction opening is located in these well ventilators preferably in the horizontal and is adjacent to the stove, the hob, the hob or the workplace arranged.

As a closing element, which is also referred to below as a closure element, is understood in the context of the present invention, an element by means of which a suction port of a fume extractor at least temporarily completely covered, that is can be closed. The suction opening of the extractor device according to the invention is understood to be the opening through which air can enter the extractor device when the closing element is not provided. The suction opening preferably represents an elongated opening, in particular a rectangular opening. In the flow direction behind the suction opening and in the case of tray fans, thus under the suction opening, at least one filter element is preferably provided. At the extractor device according to the invention can be provided a plurality of suction. In this case, at least one and preferably exactly one closing element is provided in each intake opening.

For the purposes of the present invention, a fixing mechanism is understood to mean a mechanism by means of which the closing element can be held in at least one position in the suction opening. Furthermore, the fixing mechanism can preferably also serve to release a fixation of the closing element in a position and to move the closing element. The fixing mechanism may also comprise means for holding or fastening and in particular mounting of the closing element. However, these holding means can also be provided separately, but are then connected to the fixing mechanism.

According to the invention, the closing element is rotatably mounted in the region of the suction opening. The bearing is preferably detachable, so that the closing element can be removed from the suction opening. The axis of rotation of the closing element lies in or preferably parallel to the suction opening. In the region of the intake opening means in this context that the storage of the closing element in or near the suction port, preferably in the flow direction after the suction port, is provided on the extractor device.

The closing element is used according to the invention for actuating the fixing mechanism. As an operation of the fixing mechanism is understood in the context of the invention, an influence on the fixing mechanism by which the closing element is either fixed in one position or an existing fixation of the closing element is released in one position. Since this influence can be effected by the closing element, the closing element can also be referred to as an actuating element. Preferably, the actuation of the fixing mechanism is effected by applying pressure to the closing element and particularly preferably by rotating the closing element.

According to the invention, the fixing mechanism comprises fixing means for fixing the closing element in at least two defined rotational positions. As a rotational position in this case the position of the closing element is referred to in an angular position. Defined rotational positions are positions which are predetermined or can be predefined and can be set in a targeted manner. In contrast to the setting of any positions of the closing element states of the extractor device can thus be specified in the extractor device according to the invention, wherein the rotational position of the closure element is predetermined for adjusting the state of the extractor device.

By actuation of the fixing mechanism can be effected in the extractor device according to the invention by the rotatably mounted locking element and can be fixed by this different rotational positions of the closing element, it is possible for the user of the extractor device in a simple manner to set different states of the extractor device. In particular, the closing of the suction opening by the closing element can be canceled by the user by rotating the closing element about its axis of rotation, and the suction opening can thus be used for sucking air from a work surface or a stove. Separate controls or actuators, such as buttons, this are not required. In addition, the predetermined rotational positions of the closing element and thus the different states of the extractor device can be adjusted without the closure element having to be removed from the suction opening.

According to a preferred embodiment, a rotational position of the closing element is a blocking position, which is also referred to below as the rest position, rest position or blocking position, and a further rotational position an operating position, which is also referred to below as the operating position or operating position, in the locking position is the Suction port closed by the closing element. In this position, therefore, no air can enter the suction opening and thus into the extractor device. Also impurities can not enter the extractor device in this position. In the operating position, however, air can enter the extractor device via the intake opening, that is, air can be sucked in via the intake opening.

By these rotational positions are fixed by the fixing mechanism of the extractor device, a simple and reliable switching between these rotational positions can be done without that the user has to cumbersome set himself. This is advantageous since, when setting or searching for the suitable rotational position of the closing element for the individual states of the extractor device by the user, the orientation of the closing element relative to the suction opening may not be exact. Thus, for example, when setting a rotational position in which the user assumes that the suction opening is closed, but that in fact is not completely closed, impurities can enter the suction opening. Even when setting a rotational position, which should correspond to the operating position, but must be found out by the user himself, there may be disadvantages. In particular, a higher fan power than necessary may be necessary if the suction port is still partially closed by the closing element. These disadvantages are not to be feared in the embodiment of the extractor device according to the invention, in which the operating position and the rest position of the closing element are predetermined. In addition, with this embodiment, the different states of the extractor device can be quickly adjusted. Furthermore, the closing element is fixed in the defined rotational positions. Thus, for example, by placing or placing objects on the closing element can not come to an unwanted movement of the closing element.

According to a preferred embodiment, the closing element comprises an elongate closing body, which has at least one blocking side which is impermeable to air, and at least one suction side, which is at least partially permeable to air.

The sides of the closing body, which are also referred to as surfaces or areas, preferably define a space. The closing body can therefore also be referred to as a spatial closing body and represents a hollow body or a hollow profile, which can be made in one piece for example by bending a sheet. In this case, a body is referred to as a spatial closing body, through the sides of which a three-dimensional space is defined. Particularly preferably, at least two sides of the closing body define the three-dimensional space.

According to one embodiment, the closing body has at least one blocking side and at least one suction side, which lie in each case parallel to the axis of rotation of the closing body and together define the space of the closing body. Each of these sides of the closing body preferably has, in projection onto the suction opening, in which the closing body is provided, a size which corresponds to the size of the suction opening.

As a blocking side is referred to in the context of the invention, the part of the closing body, which forms a continuous surface of luftundurchlässigem material. The blocking side is therefore also referred to below as a blocking surface. The suction side refers to the part of the closing body in which at least one opening suitable for the air inlet is provided, but the opening preferably covers a smaller area than the area of the suction opening. Particularly preferably, a plurality of openings are provided in the suction side, which are separated from each other, for example by webs.

Preferably, the suction side of the closing body is formed by a grid. As a grating in this case is referred to a material in which at least two openings are provided which are limited by struts or other pieces of material. For example, a grid in the context of the present invention may also be a perforated plate, wherein the openings in the perforated plate may have, for example, round or rectangular cross sections. By using a grid as the suction side, on the one hand, reliable suction of air via the suction side is ensured. On the other hand, but also the stability of the closing body and thus of the closing element against closing elements, in which the suction side is replaced by a through opening, increased. Finally, in the case of a vapor extraction device in which the suction side covers the intake opening in the operating position, it is advantageous if the suction side is designed as a grille, since this can prevent the falling of larger objects, such as parts of the food.

The at least one blocking side and the at least one suction side are preferably parallel to the axis of rotation of the closing body. In this case, the axis of rotation of the closing body is an axis about which the closing body can be rotated in the state mounted in the suction opening. The axis of rotation is in this case in the surface of the intake or preferably parallel thereto. In an elongate closing body, the axis of rotation extends in the longitudinal direction of the closing body.

By providing at least one blocking side on the closing body in this embodiment of the closing element, the suction opening can be closed at least temporarily by this side of the closing body. However, since at least one suction side is additionally provided on the closing body, air can at least temporarily pass into the suction opening of the extractor device and can thus be sucked in by the extractor device. Preferably, the locking side and the suction side are parallel to the axis of rotation of the closing body. In this way, by turning the closing body about the axis of rotation optionally the blocking side or the suction side can be brought into a position in which it covers the suction opening of the extractor device or is located in this. The closing element does not have to be removed from the extractor device during this movement.

The position or position of the closing element and thus also of the closing body, in which the blocking side of the closing body lies in the suction opening, is also referred to as blocking position, blocking position, rest position or rest position. The position or position of the closing element and thus also of the closing body, in which the suction side of the closing body lies in the suction opening, is also referred to as the operating position or operating position. The blocking side of the closing body, which may also be referred to as a blocking region, and the suction side of the closing body, which may also be referred to as the suction region, are also referred to as functional regions or functional surfaces of the closing body.

If the closing body is formed exclusively by the blocking side and the suction side, at least part of the suction side serves for the passage of air into the extractor device in the mounted state of the closing body. Preferably, however, the closing body has at least one in addition to the blocking side and the suction side Passage side up. The passage side here is the part of the closing body, via which air can pass from the suction opening into the extractor device. The passage side is therefore preferably formed by an opening which forms the largest part of the passage side. This opening may be bounded by webs at the edges.

An advantage of providing a passage side, which is also referred to as a passage region, and which is formed essentially by a through-opening, is in particular that the air resistance can be minimized when flowing through the air by the closing body. The air resistance in this embodiment is therefore lower than in an embodiment in which, except for a blocking region, only one intake region, in which webs are preferably arranged, is provided. In addition, the passage region can also be used for introducing fastening elements, such as a shaft or axle, which are provided on the extractor device in the region of the suction opening.

According to a preferred embodiment, at least the area of the blocking side of the closing body in projection onto the suction opening corresponds to the area of the suction opening. In this way, a reliable closing of the intake opening can be ensured.

The cross section of the closing body can be round or polygonal. In a round cross section, the blocking side and the suction side are formed by curved surfaces. The axis of rotation of a closing element, whose closing body has a round cross-section, in this case preferably extends through the center of the cross section.

According to a preferred embodiment, however, the closing body has a triangular cross section, preferably a cross section of an equilateral triangle. In this embodiment, preferably one of the sides of the triangular shape forms the blocking side, one side the suction side and one side the passage side of the closing body. In this embodiment, the triangle sides can each represent or define planar surfaces. However, it is also possible in this embodiment that at least one of the triangle sides represents a curved surface. By the closing body has a triangular cross-section, the closing element in the rest position of the closing body in which the locking side is facing outwardly, cover the suction through a flat surface and thus can be flush with a provided for example around the suction port frame. By turning the closing element by 120 °, in a triangular, equilateral closing element, the suction side can be easily brought into the position in which it covers the suction opening of the extractor device and lies precisely in this position. In this operating position, air can thus enter the extractor device via the openings in the suction side. Since the blocking side to the suction side is at an angle of 120 ° with a closure member having a triangular, equilateral cross section, in the position in which the suction side covers the suction opening of the extractor device, the blocking side does not or only slightly prevents the suction of air into the extractor device , The blocking side can serve in the operating position of the closing body for Lüftführung in the flow direction behind the suction port.

The third side of the triangular cross section of the closing body preferably forms the passage side of the closing body. In this case, the passage side of the closing body can be completely open and limited at the edges only by one edge of the material of the blocking side and the material of the suction side. However, it is also possible that in particular to increase the stability of the closing body, the edges of the passage side are formed by flanges or webs of the material of the other two sides. These flanges or ridges can be created by bending over the material of the other sides.

An advantage of a triangular, preferably equilateral, shape of the cross section of the closing body is that the length of the legs of the cross section at the same time represents the largest dimension of the cross section. Upon rotation of the closing body about the axis of rotation, which is perpendicular to the cross-sectional area of the closing body, the maximum dimension, which lies in a plane at a distance from the axis of rotation, is always less than or equal to the length of one of the legs of the triangular cross-section. Thus, the closing body can be rotated in a suction opening whose width corresponds to the length of one of the legs of the triangular cross section of the closing body. In this case, the closing body does not abut against the edges of the suction opening and, in the positions in which one of the legs lies in the suction opening, still completely covers the suction opening. For a quadrangular cross-section of the closing body, for example, this is not possible since the diagonal represents a larger dimension than the side lengths of the quadrilateral.

Preferably, the closing element of the extractor device is configured such that the closing element comprises a closing body which has at least one blocking side and at least one suction side which are each parallel to the axis of rotation of the closing body and which together define the space of the closing body, and at least one part of a fastening device for a rotatable attachment of the closure element to the extractor device in the region of an intake opening of the extractor device is provided on at least one of the end faces of the closing element.

Preferably, at least one part of a fastening device for a rotatable attachment of the closing element to the extractor device is thus provided on at least one of the end faces of the closing element in the region of an intake opening of the extractor device. In this case, the sides of the closing element are designated as the front side, which define the space in the closing body together with the at least one blocking surface and the at least one suction side. In an elongated, that is, longitudinally extending, closing body, the end faces in the region of the end faces, that is, the longitudinal ends of the closing body are arranged. More preferably, the end faces are perpendicular to the suction side and the blocking side of the closing body. As a fastening device, one or more means is referred to within the meaning of the invention, which can cooperate with the suction and / or other means provided therein to effect a retention of the closing element on the extractor device in the region of the suction at least temporarily. The fastening device preferably serves for the releasable attachment of the closing element to the extractor device, in particular in the region of the suction opening of the extractor device.

The at least one part of the fastening device, which is provided on the closing element, preferably lies in the axis of rotation of the closing element. The axis of rotation lies with the elongate closing element in the longitudinal direction of the closing element. In the mounted state of the closing element on the extractor device, the part of the fastening device is preferably downstream of the suction opening in the flow direction. In a Muldenlüftung the part of the fastening device is therefore in the mounted state below the suction port. The distance to the suction opening is dimensioned such that in at least one rotational position of the closing element, one side of the closing element lies in the surface of the suction opening.

The fastening of the closing element on the extractor device, according to the invention constitutes a rotatable attachment. Thus, the closing body of the closing element can be rotated about its axis of rotation in the suction opening, the fastening device is preferably in the axis of rotation of the closing body.

According to a preferred embodiment, at least a part of the fastening device of the closing element is an insertion device, which can also be referred to as a push-in device. In the context of the present invention, an insertion or insertion device is a device by means of which a connection between the closing element and the extractor device can be generated by translational movement of the closing element with respect to the suction opening. Thus, the closing element can be connected to the extractor device in the region of the intake opening by inserting the closing element into the intake opening.

According to a preferred embodiment, at least part of the fastening device of the closing element comprises at least one insertion opening. This can be provided as a gap or slot in the end face of the closing element and engage with a corresponding axis or a corresponding projection on the inside of the suction opening or in the region of the suction opening. For fixing the closing element in the end position of the insertion opening, one or more locking elements may be provided. Alternatively, it is also possible that the closing element is held exclusively by the shape of the insertion opening on the axis or the projection of the extractor device.

An advantage of the provision of an insertion opening is that a simple insertion and removal of the closing element in the region of the suction opening on the extractor device, in particular by insertion into the suction opening is possible.

According to a preferred embodiment, at least a part of the fastening device is designed for the transmission of rotational power to the closing element and preferably also for the rotational force transmission of the closing element. This part of the fastening device may be the part formed by a slide-in device. Alternatively or additionally, however, it is also possible that the part of the fastening device which serves to transmit rotational force is formed for example by an insertion opening into which a shaft or a projection in the extractor device can be introduced in the region of the intake opening. The insertion opening preferably has a cross-section which is not rotationally symmetrical. The insertion of a shaft into the insertion takes place, for example, in that the closing element is guided to the rotation axis inclined to the shaft or the projection and this is inserted in the inclined position in the insertion. In this embodiment is preferably only on one of the end faces of the closing element provided such an insertion opening and on the opposite end face, for example, a slot or other insertion device is provided.

The part of the fastening device, which is designed for the transmission of rotational power to the closing body, preferably has a cross section which deviates from a rotationally symmetrical cross section. In particular, the cross section of this part of the fastening device can be formed by an opening in the end face, which has a round cross section with a flattening. Alternatively or additionally, the part of the fastening device which is designed for torque transmission, be designed so that its dimension is smaller than the dimension of a corresponding part of the fastening device, for example a shaft which is provided on the extractor device, in particular in the region of the suction port and at least partially protruding into this. In this case, for example, an opening may be provided with a round cross-section in the end face whose diameter is equal to or smaller than the diameter of the shaft or the projection on the extractor device, which engages in this opening for fastening the closing element.

An advantage of providing an insertion opening is that the possibility of a force transmission to or from the closing element is given simultaneously with a holder of the closing element. As a result, a movement, in particular a rotation, of the closing element, for example, by the fixing mechanism allows.

According to a preferred embodiment, the end faces of the closing element are offset inwards relative to the longitudinal ends of the closing body. This offset creates a projection that can serve as a grip for the user. In order to be able to remove the closing element from the suction opening, for example for cleaning purposes or for accessing filter elements which are arranged behind the closing element in the flow direction, it is necessary for the user to be able to hold the closing element. For this purpose, the handle created by said projection can serve. This embodiment has the advantage that on the outside of the closing element no separate handles or recesses must be provided. On the one hand, this improves the visual impression of the closing element in the different positions, in particular the operating position and the rest position. On the other hand, can be provided by the fact that no engagement openings must be provided on the locking side, a continuous surface and the openings in the suction side can be selected smaller than would be necessary for engagement by means of the fingers.

According to one embodiment, the fixing means for fixing the closing element comprises a catch. As a rest is understood in the context of the invention, in particular a locking recess or detent recess. Since the fixing means is provided for fixing the locking element in a defined rotational position, the locking element and in particular the closing body of the Verschießelementes can thus be held in the locked position and a further detent in the operating position via a detent. The advantage of providing a detent is that the user of the extractor device can thereby also be given a haptic feedback that the closing element is in one of the defined rotational positions. As an alternative to a rest, however, it is also possible that other fixing means are provided which hold the closing element in one of the defined rotational positions. These may be in particular fixing means which hold the closing element by magnetic force or spring force in the defined rotational position.

According to a preferred embodiment, the fixing mechanism has at least one transmission element for transmitting force from the closing element to at least one of the fixing means. In this case, the fixing means may be, for example, a sliding element in the form of a pin which is guided in a guide element to form a link which may comprise the detent or another fixing means. The transmission element preferably constitutes an elongated transmission element, for example a lever. The transmission element preferably extends perpendicular to the axis of rotation of the closing element. The axis of rotation of the closing element is also referred to as the axis of rotation of the closing body. This makes it possible, the locations at which the fixing means must be provided to the axis of rotation of the closing element spaced apart or offset. Thus, the defined rotational positions can be set more accurately than is possible with a provision of fixing means on the axis of rotation. In addition, a lever arm can be created by the transmission element, through which the force that is necessary on the closing element for fixing or releasing the fixation is reduced.

According to a further embodiment, the fixing mechanism has at least one spring element for applying a rotational force for rotating the closing element. The at least one spring element can also serve as a fixing agent. Preferably, at least two spring elements are provided whose spring forces in each other offset, that is inclined, directions lie. In this way, by a spring element, for example, a sliding element can be pulled into a detent, by which the first rotational position is defined. By the other spring element, the lubricant is then held in another catch, by which the second rotational position is defined. But the spring element or the spring elements can also serve alone as a fixing means to hold the closing element in a rotational position. When providing two spring elements, this rotational position can be such that both spring elements are relaxed in this rotational position. This rotational position may, for example, be a removal position of the closing element lying between the blocking position and the operating position. In addition, according to the invention, however, the spring element preferably also serves for applying a rotational force to the closing element, by means of which the closing element is rotated. This rotational force can be transmitted from the spring element to the closing element by parts of the fixing mechanism, in particular by the transmission element connected rigidly to the axis of rotation.

According to a preferred embodiment of the fixing mechanism is a push-to-open mechanism. As a push-to-open mechanism is in this case understood in particular a mechanism in which by pressure force acting on the closing element, the fixing of the closing element in a rotational position and the release of a Such fixation can be effected. For example, the push-to-open mechanism may constitute a mechanism in which a movement of the closing element, that is, a rotation of the closing element beyond this rotational position is required for fixing the closing element in a defined rotational position and the closing element then automatically, in particular by spring force is brought into the defined rotational position. To release the fixation from a defined rotational position is also a movement, that is a rotation of the closing element on the rotational position also required, the closing element is then automatically, in particular by spring force in a further defined rotational position is brought. This further defined rotational position can be, for example, the removal position. According to a preferred embodiment, the push-to-open mechanism comprises a link, along which a sliding element is guided away to a stop and from a stop. For at least the defined rotational positions of the locking position and the operating position in this case preferably a separate backdrop is provided with a catch. Between these two scenes, the sliding element is preferably guided in a guide elements, which may, for example, constitute an arcuate groove. The sliding element is preferably provided at one end of a transmission element, in particular in the form of a rigid lever, and extends perpendicular to the length of the lever. At the end of the lever on which the sliding element is provided, preferably engage via a rotatably mounted connecting element, two spring elements whose spring forces act in mutually offset directions. In a middle position of the sliding element between the two scenes, the two spring elements are relaxed. This position represents the removal position. In the operating position and the blocking position, however, one of the spring elements is tensioned in each case and thus ensures that the sliding element is held in the corresponding detent.

According to one embodiment of the extractor device, the extractor device has a fastening device for fastening the closing element in the region of the suction opening and the axis of the fastening device lies in the flow direction behind the suction opening. The attachment axis is preferably formed by a shaft or an axis which extends in plan view of the suction opening from the edge of the suction opening into the surface of the suction opening. The attachment axis can extend over the entire length of the suction opening. But it is also possible that in each case an axis or shaft is provided at the opposite ends of the suction, which ends in the surface of the suction port. The attachment axis lies in the axis of rotation of the closing element.

The attachment axis is preferably in the mounted state of the closing element in the center of gravity of the cross section of the closing body. Preferably, the closing element has end faces in the region of the longitudinal ends, which can also be referred to as spacers and via which the closing body is held on the fastening axis. In or on the end faces parts of a fastening device are provided, which can cooperate with the mounting axis on the extractor device for rotatable mounting of the closing element. In the embodiment in which the attachment axis lies in the center of gravity of the cross section of the closing body, thus also the parts of the fastening device are located at the end faces in this center of gravity. This orientation of the parts of the fastening device on the closing element facilitates the rotation of the closing element about its axis of rotation and thus the different positions or positions of the closing element can be set by the user without much effort. In addition, by this orientation of the fastening device and the distance between the center of gravity and the sides of the closing body in several angles equal. For an equilateral, triangular cross-section, for example, the distance of the three legs to the center of gravity equal. Thus, it can be ensured that always one side of the closing body can be arranged in the suction opening.

The extractor device is preferably designed such that in the region of the intake opening it has at least one rotational force transmission element in the form of a shaft as part of the fastening axis or as a fastening axis. By means of this torque transmission element, the rotational force can be transmitted to the closing element via the part of the fastening device of the closing element with which the rotary force transmission element cooperates, and this can be brought or held in the different positions, namely the operating position, rest position and removal position. Also, forces acting on the closing element can be transmitted to the rotational force transmission element and thereby, for example, move the rigidly connected to the rotational force transmission element transmission element of the fixing mechanism. The torque transmitting member is preferably offset from the suction port at a distance downward. Thus, the axis of rotation of the closing element is also not in the plane of the suction port. As a result, a flush closing or covering of the suction opening can be made possible by the blocking side or the suction side of the closing element.

Preferably, the extractor device is a well ventilation device with at least one horizontal suction port. In a well ventilation, the air is sucked down through the suction opening, that is, the fan is arranged below the suction opening in the extractor device.

The advantages of the present invention can be used particularly well in hollow vents with a horizontally arranged intake opening, since the occurrence of contaminants, especially of liquids, is a particular problem there.

An embodiment of the invention can be summarized as follows. The closing element, which can also be referred to as a rotating element, is composed of a metal sheet, preferably a 1.5 mm thick stainless steel sheet, and two end faces, which can also be referred to as spacers. The sheet is bent in the shape of a triangle and the front faces represent triangular spacers, on which rest the stub axle. The thus assembled locking element rotatably supports on a central axis or axis of rotation and can be brought into two opposite end positions. Here, the closing element has a first closed end position, which is also referred to as a locked position or rest position. By pressing at a defined point, the closing element swings up to a middle position, which is also referred to as a removal position. In this position, the closing element can be removed in order to clean the closing element itself and to allow access to lying in the flow direction behind the closing element, that is at a Mulden ventilation underlying filter elements. Starting from the middle position, the closing element can be pressed against the spring force by hand in the open end position, which is also referred to as the operating position, where it engages. The closing of the suction opening through the blocking side of the closing element is carried out by performing the said steps in the reverse order.

The invention will be described again below with reference to the accompanying figures. Show it:

1 FIG. 3: a perspective view of an embodiment of the extractor device according to the present invention with an embodiment of the closure element in a removal position, FIG.

2 a perspective view of a portion of the extractor device according to 1 with an embodiment of the closing element in a rest position of the closing element;

3 a perspective view of a portion of the extractor device according to 1 with an embodiment of the closing element in an operating position of the closing element;

4 a perspective view of a portion of the extractor device according to 1 with an embodiment of the closing element in a removal position of the closing element;

5 a rear perspective view of a portion of the extractor device according to 1 with an embodiment of the closing element in an operating position of the closing element;

6 a perspective view of an embodiment of the closing element;

7 a partial perspective view of a portion of the suction port of an embodiment of the extractor device without closing element; and

8th a partial perspective view of another portion of the suction port of a Embodiment of the extractor device without closing element.

In 1 is an embodiment of the extractor device according to the invention 1 shown. In this embodiment, the extractor device 1 a so-called Muldenlüftung or table ventilation. The suction port 10 the extractor device 1 is in the illustrated embodiment between two cooking zones of a cooker 2 arranged and lies in the work surface. From the intake 10 the air is sucked down via a fan (not shown) arranged below the cooking surface plane. The intake opening 10 is from a frame 100 surround. The frame 100 represents the top of a case 103 (please refer 2 ) of the extractor device 1 dar. In the intake 10 is a closing element 11 arranged. In the 1 is from the closing element 11 only part of the closing body 115 to see.

The structure of the embodiment of the closing element 11 is in the 6 shown in more detail. As is clear from this 6 results, there is the closing element 11 from an elongated closing body 115 which has a triangular cross-section. The closing body 115 is formed in particular by a bent sheet metal. The three sides of the closing body 115 each have a different design. One side of the closing body 115 is formed by a continuous piece of sheet metal. This page is the blocking page 110 of the closing body 115 dar. A second side of the closing body 115 is as a grid 1110 designed and forms the suction side 111 of the closing body 115 , The grid 1110 is formed by placing in the sheet metal of the closing body 115 Openings are introduced. Between these openings are webs. The third side of the triangular closing body 115 is largely open in the illustrated embodiment. Only at the lateral edges are webs of the suction side 111 and the blocking side 110 in the third page about. This third, open page is also called the passage page 112 of the closing body 115 designated.

The closing body 115 has an elongated shape, that is, extends in the direction perpendicular to the triangular cross-section in the length. In the area of the longitudinal ends of the closing body 115 are frontals 113 . 114 intended. These are perpendicular to the sides of the closing body 115 and are in the illustrated embodiment to the longitudinal ends of the closing body 115 offset inwards. In a front page 113 a central opening is provided which forms part of the fastening device and an insertion opening 1130 represents. The insertion opening 1130 is formed in the illustrated embodiment as a largely circular opening with a flattening. In the, the front 113 opposite, front side 114 is an insertion opening as part of the fastening device 1140 intended. This insertion opening 1140 represents a slot extending from the passage side 112 out to the middle of the front 114 extends. The axis of rotation of the closing body 115 runs through the middle of the front side 114 and the insertion opening 1130 that is in the middle of the front 113 located.

Through the three sides of the closing body 115 is in the closing body 115 defines a space, that is, the closing body forms a hollow body. To the longitudinal ends of this space is through the front sides 113 and 114 limited.

That through the closing body 115 and the front ends 113 . 114 formed closing element 11 can into the intake 10 a fume extraction device 1 be introduced. As in 7 is shown in the housing 103 the extractor device 1 at one of the longitudinal ends in the region of the intake opening 10 a wave 101 provided in the interior of the housing 103 extends horizontally. The wave 101 has a largely circular cross section with a flattening corresponding to the cross section of the insertion 1130 on. At the opposite longitudinal end of the housing 103 in the area of the intake opening 10 is an axis 102 provided, which is also in the interior of the housing 103 extends. The axis 102 and the wave 101 are to the top of the housing 103 at the frame 100 is provided, which is the suction port 10 surrounds, offset downwards. This is in 8th shown. The amount to which the axis 102 and the wave 101 to the top of the frame 100 are offset in the illustrated embodiment, the smallest distance between the insertion 1130 and the outer surface of the locking side 110 or the suction side 111 of the closing element 11 ,

For introducing the closing element 11 this will be with the passage side 112 down and with the front side 113 forward into the intake 10 introduced and the shaft 101 in the insertion opening 1130 introduced. Subsequently, the opposite end of the closing element 11 lowered. As a result, the insertion opening gets 1140 with the axis 102 engaged and the axis 102 can in the slot, this slide-in opening 1140 forms, slip upwards. Once the axis 102 the upper end of the insertion opening 1140 has reached is the closing element 11 in the extractor device 1 and in particular in the region of the intake opening 10 held. This position, which in 1 is shown and in the passage side 112 of the closing element 11 directed downwards, is also referred to as removal position. In this position, the top of the roof protrudes, through the barrier side 110 and the suction side 111 is formed, via the suction port 10 and especially about the frame 100 upwards. The user can in this area in the longitudinal ends of the closing body 115 that is, in between the longitudinal ends and the end faces 113 and 114 formed supernatants of the closing body 115 engage and the closing element 11 by opposing movements to the just described movements from the extractor device 1 remove.

Should the extractor device 1 can be used, the user can the closing element 11 around the axis of rotation in which the insertion hole 1130 and the insertion opening 1140 lie, turn. From the removal position 1 this is the closing element 11 turned counterclockwise until the suction side 111 of the closing body 115 is directed upward. This position, which is also referred to as the operating position, is in 3 shown. Due to the triangular cross section of the closing body 115 and the distance between the insertion opening 1130 and the outside of the suction side 111 , is the outside of the suction side 111 in this position, flush with the top of the frame 100 , However, it is also possible that the outside of the suction side 111 opposite the top of the frame 100 is slightly offset down. In the operating position, the blocking side protrudes 110 of the closing body 115 at an angle, in particular of 120 °, down into the housing 103 under the intake opening 10 , This will cause the air to flow through the blower (not shown) into the housing 103 is sucked in, after passing through the suction side 111 directed and passes through the passage side 112 of the closing body 115 in the case 103 and to the fan. Will the extractor device 1 not used, the user can the closing element 11 in the in 2 bring shown rest position. In this rest position is the blocking side 110 of the closing body 115 directed upwards. To the closing body 115 and thus the closure element 11 From the operating position to bring to the rest position, the user turns in the illustrated embodiment, the closing element 11 120 ° clockwise. The blocking side 110 of the closing body 115 closes in the rest position, the suction port 10 Completely. As a result, the penetration of contaminants, in particular in the form of liquids, can be reliably prevented.

Adjusting the different positions of the closing element 11 , in particular the turning of the closing element 11 , is preferably done manually. For this purpose, preferably a fixing mechanism 3 intended. An embodiment of such a fixing mechanism 3 is in the 2 to 5 shown schematically.

The fixing mechanism 3 comprises in the illustrated embodiment, a transmission element 30 in the form of an elongated lever, the rigid with the shaft 101 connected is. This transmission element 30 grabs the shaft at one end 101 at. At the other end of the transmission element 30 is a connecting element 36 rotatably mounted in the form of a plate. At this connection element 36 grab two fixing elements 34 , the spring elements, in particular in the form of spiral tension springs, on. The other ends of the spring elements 34 are on the case 103 attached offset down. In the transmission element 30 engages in the region of the end of the spring elements 34 over the connecting element 36 are connected, a sliding element 33 in the form of a pen. This is in the transmission element 30 in a slot extending in the longitudinal direction of the transmission element 30 extends, guided and stands to the longitudinal extension of the transmission element 30 perpendicular. The other end of the slider 33 is in a guide element 31 which takes the form of an arcuate groove in the side wall of the housing 103 has led. In the guide element 31 are at its two ends in each case a backdrop 32 provided as a fixing. Every scenery 32 has at its top a rest 320 and lies in the guide element 31 in that the sliding element 33 in the guide element 31 around the scenery 32 can be guided around.

In the in 2 shown rest or locking position is the sliding element 33 in the rest 320 the left backdrop 32 engaged and is by the right spring element 34 held in this position.

To the closing element 11 From this position, the user can move to the right outer longitudinal edge of the blocking side 110 of the closing body 115 Exert pressure. This force is over the shaft 101 on the transmission element 30 transmit and move this to the left. As a result, the sliding member runs 33 at the scenery 32 along and get out of engagement with the rest 320 , By a projection in the guide element 31 , above the backdrop 32 towards the scenery 32 points, the sliding element becomes 33 to the top of the backdrop 32 directed.

Will the pressure on the blocking side 110 of the closing body 115 taken away, so the slider runs 33 due to the spring force passing through the right spring element 34 this is exercised at the top of the backdrop 32 along towards the center of the guide element 31 , By this movement of the sliding element 33 is via the transmission element 30 also the closing element 11 turned. Once the right spring element 34 is relaxed, is the closing body 115 in the in 4 shown removal position. In this position is between the blocking side 110 and the suction side 111 formed roof over the frame 100 in which the suction opening 10 is formed, up and can be removed. The spring elements 34 are in this rotational position of the closing element 11 both relaxed.

From the removal position, the closing element 11 be brought into the operating position. For this purpose, the user exercises on the upper edge of the suction side 111 the closing element from a left-facing pressure force. This is via the transmission element 30 the sliding element 33 in the guide element 31 in the direction of the right-hand backdrop 32 guided. With sufficient pressure, the sliding element arrives 33 in engagement with the rest 320 at the scenery 32 and the closing element 11 is in the in 3 fixed operating position shown. In particular, the sliding element 33 in this position by the left spring element 34 in the rest 320 held.

The rotation of the closing element 11 and thus the movement of the sliding element 33 in the illustrated embodiment by a braking element 35 attenuated. The brake element 35 is on the axis 102 at the other fixing mechanism 3 opposite side of the housing 103 arranged. The brake element 35 represents a rotation brake, which consists of a part gear 351 and an engaging gear 350 consists.

The invention is not limited to the illustrated embodiments. Non-limiting examples of deviations from the illustrated embodiment will be described below.

For example, the fastening device may be configured differently than shown. For example, it is possible that in each case an insertion opening is provided in both end faces and at the upper ends of the insertion opening in each case a latching device is arranged, by means of which a respective shaft is held in the end face and are exerted on the closing element or by the closing element via the rotational force can.

Furthermore, for example, the shape of the closing body may differ from the shape shown. For example, the closing body can have a rectangular or round cross section.

The design of the suction side and the passage side of the closing body are not limited to the embodiments shown. For example, the suction side may be formed by a perforated plate with round openings.

In addition, the fixing mechanism may also deviate from what is shown, that is to say differently configured.

The present invention has a number of advantages. In particular, can be dispensed with separate controls, such as buttons. In addition, an electric drive and the associated components are not required. Instead, the invention provides a purely mechanical closing element, which is simple and reliable to use and results in a flat surface both in the closed state, that is in the locked position, as well as in the open state, that is in the operating position. Thus, no protruding elements hinder cooking on the surrounding hob.

LIST OF REFERENCE NUMBERS

1

 Exhaust hood

10

 suction

100

 frame

101

 wave

102

 axis

103

 casing

11

 closing

110

 blocksite

111

 suction

1110

 grid

112

 Passage side

113

 front

1130

 Insertion opening (part of the fastening device)

114

 front

1140

 Insertion opening (part of the fastening device)

115

 closing body

2

 stove

3

 fixing mechanism

30

 transmission element

31

 guide element

32

 Fixative (backdrop)

320

 rest

33

 Fixing agent (sliding element)

34

 Fixing agent (spring element)

35

 braking element

350

 gear

351

 partial gear

36

 connecting element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102009025038 A1 [0002]

Claims (11)

Vapor extraction device, in particular trough ventilation device, with at least one suction opening ( 10 ), at least one closing element ( 11 ) for at least temporarily closing the suction opening ( 10 ) and a fixing mechanism ( 3 ) for fixing the closing element ( 11 ), characterized in that the closing element ( 11 ) in the region of the intake opening ( 10 ) is rotatably mounted, that the closing element ( 11 ) for actuating the fixing mechanism ( 3 ) and that the fixing mechanism ( 3 ) Fixative ( 32 . 33 . 34 ) for fixing the closing element ( 11 ) in at least two defined rotational positions. Vapor extraction device according to claim 1, characterized in that a rotational position of the closing element ( 11 ) a blocking position in which the suction opening ( 10 ) by the closing element ( 11 ) is closed, and a further rotational position an operating position in which the suction of air through the suction port ( 10 ) is possible represents. Vapor extraction device according to one of claims 1 or 2, characterized in that the closing element ( 11 ) an elongated closing body ( 115 ), the at least one blocking side ( 110 ), which is impermeable to air, and at least one suction side ( 111 ), which is at least partially permeable to air, has. Vapor extraction device according to one of claims 1 to 3, characterized in that the closing element ( 11 ) a closing body ( 115 ) having a triangular, preferably equilateral, cross-section. Vapor extraction device according to one of claims 3 or 4, characterized in that the suction side ( 111 ) of the closing body ( 115 ) through a grid ( 1110 ) is formed. Vapor extraction device according to one of claims 1 to 5, characterized in that the fixing means ( 32 . 33 . 34 ) for fixing the closing element ( 11 ) a rest ( 320 ). Vapor extraction device according to one of claims 1 to 6, characterized in that the fixing mechanism ( 3 ) at least one transmission element ( 30 ) for transmitting force from the closing element ( 11 ) on at least one of the fixing agents ( 32 . 33 . 34 ) having. Vapor extraction device according to one of claims 1 to 7, characterized in that the fixing mechanism ( 3 ) at least one spring element ( 34 ) for applying a rotational force for rotating the closing element ( 11 ) having. Vapor extraction device according to one of claims 1 to 8, characterized in that the fixing mechanism ( 3 ) by pressure force acting on the closing element ( 11 ) the fixing of the closing element ( 11 ) is effected in a rotational position and the release of such a fixation. Vapor extraction device according to one of claims 1 to 9, characterized in that the extractor device ( 1 ) a fastening device ( 1130 . 1140 ) for fastening the closing element ( 11 ) in the region of the intake opening ( 10 ) and the axis of the fastening device in the flow direction behind the suction port ( 10 ) lies. Vapor extraction device according to claim 10, characterized in that the fastening axis in the center of gravity of the cross section of the closing body ( 115 ) lies.

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