Device for injecting insulating material

Abstract

Device for blowing insulating material, in particular wood fiber, into an insulating material chamber, comprising a cover element for covering at least a part of the insulating material chamber and at least one nozzle for blowing in the insulating material, wherein the nozzle is movably arranged in the cover element, characterized in that the area of ​​the cover element in which the nozzle is movable is closed next to the nozzle by a closing element.

Description

[0001] The invention relates to a device for blowing in insulating material, in particular for improved edge filling.

[0002] Devices for blowing insulation material into insulation chambers are known from the prior art. For example, EP 2 333 198 discloses a device for blowing in insulation material, in which insulation material is introduced into the insulation chamber through at least one filling nozzle, and the filling nozzle is arranged in an opening of an air-permeable membrane. The device disclosed therein is particularly suitable for filling with cellulose. EP 4 033 050 A1, which constitutes prior art according to Article 54(3) EPC, also discloses a device for blowing in insulation material.

[0003] However, installing wood fiber presents different challenges than installing cellulose. Wood fiber has a loose structure and very fine cross-sections, meaning it cannot be compressed with air. Furthermore, it is not compressible. This leads to problems, particularly when using wood fiber as insulation, especially insufficient filling at the edges and corners. Additionally, a device for blowing in insulation material should be suitable for insulation chambers of various sizes, particularly for the uniform filling of insulation chambers of different sizes.

[0004] The object of the invention is to provide a device for blowing in insulating material, in particular for improved edge filling, which can solve one or more of the aforementioned problems. This object is achieved by a device according to claim 1, a combination of a movement device and such a device according to claim 14, and a method according to claim 15. Further embodiments are described in the dependent claims.

[0005] The device for blowing in insulation material, especially wood fiber, is designed for blowing insulation material into an insulation chamber. A device suitable for the uniform blowing of wood fiber is usually also well-suited for other insulation materials such as cellulose and / or other fibers, as these are often easier to process.

[0006] An insulation chamber can be formed, for example, within a wall, roof, or ceiling element of a prefabricated building. It is typically bounded by a floor and laterally by beams, boards, battens, webs, and / or other barriers. A building element can comprise several such insulation chambers, also called compartments.

[0007] The device for blowing in insulation material includes a cover element for covering at least part of the insulation chamber.

[0008] The cover element can be essentially planar, e.g., plate-shaped. The planar cover element can comprise two surfaces along its planar extent.

[0009] The surface of the cover element that is designed to face the insulation chamber is hereinafter referred to as the side of the cover element facing the insulation chamber. Similarly, the surface of the cover element that is designed to face away from the insulation chamber (and is opposite the side facing the insulation chamber) is hereinafter referred to as the side of the cover element facing away from the insulation chamber.

[0010] The cover element can be permeable to air.

[0011] The cover element can be of a size suitable for completely covering insulation chambers such as those normally filled with such a device, for example with an extent of between 0.5 m and 8 m in length and between 20 cm and 2 m in width.

[0012] In the case of very large compartments, the cover element may also (only) allow for partial coverage of an insulation chamber.

[0013] The device can, for example, be arranged on the cover element and also include one, two, or more extension elements, particularly plate-shaped ones, such as bulkheads. The extension element(s) can be displaceable, particularly beyond the cover element, and especially parallel to its length. The extension element(s) can thus, in particular, allow the filling of insulation chambers that are larger, especially longer, than the cover element. The extension element(s) can be operated automatically or manually.

[0014] The cover element can include a support structure, e.g., made of or incorporating a (wooden or metal) panel or beams, which may be designed to be particularly air-permeable. The cover element can further include a membrane, particularly an air-permeable one, which may be arranged on the side of the cover element facing the insulation chamber, particularly on the support structure. Such a membrane can allow the blown-in air to escape through the air-permeable cover element while simultaneously retaining insulation particles and / or dust. Optionally, the cover element can additionally include a cushion, e.g., between the support structure and the membrane, which rests on the webs or beams of the insulation chambers during operation and can be compressed by them.The padding can be designed to be air-permeable and suitable, through its compression when the cover element is placed on an insulation chamber, to seal the insulation chamber from the environment.

[0015] Above the cover element, the device for blowing in insulation material can include a protective cover, e.g., in the form of a hood, which may be arranged on the side of the cover element facing away from the insulation chamber. In other words, the described device can be, or include, a blowing hood. This protective cover can, for example, support the cover element, protect it from external influences, protect the environment from insulation material that may pass through the cover element, and / or provide means of movement, in particular lifting and lowering, of the device. The protective cover can be connected to the cover element. Within the protective cover, for example, pipes for conveying the blown-in insulation material may run, and / or other accessories for the device, such as a control unit, may be arranged.The protective cover may in particular include a suction mechanism for drawing in air, especially from the insulation comb, which means that the protective cover can also act as an exhaust vent.

[0016] The device for blowing in insulation material can be movable so that it can be placed on the insulation chamber with the side of the cover element facing the insulation chamber and optionally pressed down, allowing the insulation chamber, which is at least partially sealed by the device's cover element, to be filled with blown-in insulation. This movement can be achieved mechanically, for example, via attachment points such as hooks or handles. These can be located, for instance, directly on the cover element and / or on the protective cover. The device for blowing in insulation material can also be moved by a movement mechanism. For example, it can be moved vertically by a movement mechanism, such as a lifting and lowering device, perhaps in the form of an overhead crane, and thus be lowered vertically onto and lifted off the insulation chamber during operation.

[0017] The device for blowing in insulation material can additionally or alternatively be designed to be movable, e.g., as a sled, and in particular designed to be moved horizontally on the cavity or across several cavities during the blowing in of insulation material, e.g., by means of a movement device. The device for blowing in insulation material can therefore be moved horizontally, in particular by means of a movement device. It can thus be moved parallel to the insulation chamber, especially the plane of the insulation chamber, particularly during operation and / or before use.

[0018] The invention also includes a movement device as previously described in combination with the device for blowing in insulating material.

[0019] The device comprises at least one nozzle for blowing in insulating material, wherein the nozzle is movably arranged in the cover element, i.e., it can be moved relative to the cover element. When the device is used for blowing insulating material onto an insulating chamber, insulating material can be blown through the cover element and into the insulating chamber via the nozzle. The nozzle can be, for example, a short, particularly smooth, piece of pipe, a nozzle, a pipe section with a collar, or a textile nozzle.

[0020] The nozzle for blowing in insulation material can be positioned extending through the cover element, allowing insulation to be blown through the cover element and into an insulation chamber. The axis of the nozzle can correspond to the direction in which the insulation is blown in. In particular, the axis of the nozzle can be positioned perpendicular to the side of the cover element facing the insulation chamber. The nozzle can project beyond the cover element on the side facing the insulation chamber. Thus, the edge of the nozzle can protrude into the insulation chamber, especially during use, for example, by a few millimeters, e.g., between 10 mm and 80 mm. This can prevent insulation material from sticking to the cover element and therefore not being blown properly into the insulation chamber.Alternatively, the nozzle can be flush with the cover element on the side facing the insulation chamber.

[0021] The nozzle can be movable in the cover element, in particular it can be movable in a plane that is essentially parallel to the plane of the side of the cover element facing the insulation chamber.

[0022] "Substantially parallel" or "substantially perpendicular" can in particular include that there is a deviation of less than 30° from parallel or perpendicular (i.e. an angle of less than 30° is included or the angle is between 60 and 120°), e.g. less than 20°, in particular less than 5°, e.g. less than 2°, e.g. no deviation from parallel or perpendicular.

[0023] The nozzle can be movable within the cover element (essentially) parallel to its length. Alternatively or additionally, the nozzle can be movable (essentially) transversely to the length of the cover element. Alternatively or additionally, the nozzle can be movable along a curved or bent path, e.g., a circular, arcuate, or oval path.

[0024] The movable nozzle allows its position to be adjusted to the edge of the insulation chamber being filled. This enables the nozzle to be positioned to ensure optimal edge filling, particularly at the edge of the insulation chamber. Experience has shown that edge filling is especially uniform when the distance from the next nozzle (center of the next nozzle to the wall) does not exceed certain values, for example, no more than 300 mm, 250 mm, or 150 mm, depending on the blowing sequence. In particular, the movable nozzle can be positioned so that its distance to the edge of the insulation chamber does not exceed a specific value, such as no more than 300 mm, 250 mm, or 150 mm.The movable nozzle thus improves the device's suitability for filling insulation chambers of various sizes with good edge filling. Additionally, the nozzle can be positioned so that it is at least half a nozzle diameter away from the edge, with the distance between the edge and the nozzle being measured from the nozzle's center point. This can also be advantageous for good edge filling.

[0025] The adjustment to the edge position can be done manually or automatically, e.g., based on optical detection of the edge of the insulation chamber by a sensor included in the device.

[0026] In addition, a movable nozzle allows the insulation chamber to be optionally moved while it is being filled through this nozzle, enabling continuous filling during movement and thus ensuring a more even filling of the insulation chamber.

[0027] Alternatively or additionally, if the device is designed to be movable, it can be moved continuously while an insulation chamber is being filled. This can also allow the insulation chamber to be filled evenly.

[0028] The nozzle can optionally be movable along its (longitudinal) axis (in particular, essentially perpendicular to the side of the cover element facing the insulation chamber). Alternatively, it can be fixedly connected to the device along this axis. Likewise, the nozzle can optionally be rotatable about its axis or fixedly connected to the device along this axis. The end region of the nozzle can also be designed to be compressible along its axis, for example, by comprising or consisting of a textile material.

[0029] The nozzle can be arranged, or be arranged, centrally with respect to the width of the cover element. It can be arranged to be movable, in particular slidable, along the length of the cover element. Alternatively or additionally, the nozzle, especially one that can be arranged in a central position with respect to the width of the cover element, can be moved along a curved or bent path, e.g., a circular or arc-shaped path. This can, in particular, allow the nozzle to be moved from its central position with respect to the width of the cover element, e.g., by a 90° movement along a circular (arc-shaped) path. This can be advantageous for certain compartments, for example, compartments with a pointed end.In particular, the nozzle can be movable along a circular or arcuate path, the center of which can be located centrally with respect to the width of the cover element. Alternatively, the center of the circular or arcuate path can also be located at a position other than centrally with respect to the width of the cover element. This can be advantageous for certain compartment geometries.

[0030] According to the invention, the area of ​​the cover element in which the nozzle is movable is closed off next to the nozzle by a closure element. For example, a closure element can be movable with the nozzle, e.g., arranged next to the nozzle and / or arranged around the nozzle. For example, the closure element can cover the area of ​​the cover element in which the nozzle can be moved and in which the movable nozzle is not located. In particular, such a closure element can prevent the escape of insulating material through the opening in the cover element provided for the movement of a nozzle. Such a closure element can also prevent air from immediately leaving the insulating material chamber at the nozzle, thereby enabling better transport of the insulating material into the corner.The closing element can be located on the side facing the insulation chamber or on the side of the cover element facing away from the insulation chamber.

[0031] The closure element can be designed, in particular, as a rigid slide and / or as a rigid rotary disc in which the filling nozzle is mounted eccentrically. Such a rotary disc can, in particular, allow rotation along a circular or arcuate path around the center of the disc.

[0032] A closure element can comprise several parts that are arranged next to the nozzle (for example, when viewed from above on the side facing the insulation chamber) in the area where the nozzle is movable.

[0033] The sealing element or its individual components can be designed to be airtight. This prevents air (along with the insulation material) from escaping through the sealing element immediately after the insulation has been blown in. An airtight sealing element ensures that air is always directed away from the injection opening towards the corners and edges of the insulation chamber during the blowing process, so that the insulation material, especially wood fiber, is distributed as much as possible into all corners and along all edges. This results in a more even distribution of the insulation material, particularly improving edge filling.

[0034] A sealing element, such as a textile sealing element like a membrane or fleece, can be attached to the closure element. This sealing element can be positioned, in particular, on the side of the closure element facing the cavity and / or between the cover element and the closure element. The sealing element can be thick enough to be flush with the cover element on the side facing the cavity. The sealing element can thus prevent the escape of insulation material, especially when the closure element rests on the ribs of a cavity, and / or create a seal between the closure element and the cover element, preventing any insulation material from escaping at that point.

[0035] For example, the nozzle can be movable along an elongated slot in the cover element. This elongated slot can be closed in the area where the nozzle is not currently located, i.e., next to the nozzle, by a closing element, particularly an airtight one, such as a sliding closure. Alternatively, the nozzle can be rotatable along a circle or arc, e.g., by at least 180° or 270°, and move along a circular or arc-shaped opening, e.g., along a circumference of at least 180° or 270°. For example, the nozzle can be continuously movable on a circular or arc-shaped opening or movable at specific positions, e.g., to a starting position and positions equidistant from the starting position, e.g., at 90° intervals, particularly at 90°, 180°, and 270° from the starting position.Alternatively or additionally, instead of a circular or arc-shaped hole, a circular-shaped hole, or a hole in the form of a part of the circular area in the cover element, can be provided in which the nozzle is movable.

[0036] An opening in the cover element, in particular e.g. an elongated hole, circular, circular surface or arc-shaped hole, typically extends through the entire cover element, e.g. it may extend in particular through the support structure and the optional membrane and through an optional pad.

[0037] In other embodiments, the opening in the cover element can have a different shape instead of an elongated hole, along which the nozzle in the cover element can be moved, e.g. two mutually perpendicular elongated holes in a cross shape or in a T shape, a bent or curved shape, in particular a circular shape, circular surface shape or circular arc shape or shape of part or all of an oval, or other shapes.

[0038] The closure element can be designed as a slide or a rotary disc, which is attached to the nozzle and can be moved with the nozzle. The slide or rotary disc can be moved, for example, by a motor, e.g., via a rotary disc, or directly, manually, or by another means.

[0039] The nozzle and / or slide and / or rotary disc can be guided by a guide in the cover element, e.g., by the opening in the cover element, a guide attached thereto, or other guiding means. An opening in the cover element, e.g., an elongated hole, a guide attached thereto, or other guiding means can be arranged, in particular, substantially parallel and / or transverse to the length of the cover element, so that the nozzle can be moved parallel and / or transversely to the direction of the cover element's length. Alternatively or additionally, an opening in the cover element, e.g., a circular or arc-shaped hole, a guide attached thereto, or other guiding means can be provided.

[0040] The device may also include one, two, three, four or more additional nozzles for blowing in insulating material.

[0041] Each nozzle for blowing in insulation material, especially each movable nozzle, can be individually controlled, allowing the blowing of insulation material to be switched on and off for each nozzle individually by a control unit of the device, for example, by means of slides to close the nozzles and / or diverters. This can, in particular, make it possible to fill even insulation chambers so small that only some of the nozzles for blowing in insulation material can protrude into the chamber when the device's cover element is in place. Furthermore, this allows a blowing pattern to be defined for an insulation chamber, enabling the most efficient blowing of insulation material.

[0042] A nozzle for blowing in insulation material, or optionally two, three, four or more of them, is fixedly arranged in the cover element. Fixed arrangement can, in particular, mean that the nozzles are not movable in the plane essentially parallel to the side of the cover element facing the insulation chamber. They may be arranged to be movable or immovable essentially perpendicular to this plane and / or be rotatable about their axis within the cover element or not.

[0043] The movable nozzle can be movable (and fixed) to discrete positions, e.g., 2, 3, 4, or more discrete positions, particularly in a plane that is substantially parallel to the plane of the side of the cover element facing the insulation chamber. The discrete positions can have a predetermined distance from each other, e.g., between 50 mm and 150 mm, or a specific angular distance from each other, e.g., 45° or 90° along a circular arc. Alternatively, the movable nozzle can be continuously movable within its range of motion, i.e., without fixed positions, particularly in a plane that is substantially parallel to the plane of the side of the cover element facing the insulation chamber.

[0044] The device may further include a second nozzle for blowing in insulating material, which is movably arranged in the cover element. The area of ​​the cover element in which the second nozzle is movable may optionally be closed by a sealing element adjacent to the nozzle. The second nozzle may, in particular, have the properties previously described in relation to the (first) movable nozzle. The first and second movable nozzles may be movable independently of each other. Alternatively or additionally, they may be coupled together and movable in conjunction with each other.

[0045] The first and second movable nozzles can be positioned alongside one, two, three, four, or more additional nozzles for blowing in insulation material, optionally fixed in the cover element. The distance between fixed nozzles for blowing in insulation material (measured between the nozzle centers) can, for example, be between 450 mm and 700 mm. With such a distance, a fairly uniform filling of an insulation chamber can typically still be achieved, provided the insulation material is not blown in at the edges. Smaller distances to the edge may be necessary to ensure uniform edge filling.

[0046] For example, the nozzles can be arranged or arranged along a straight line that is substantially centered with respect to the width (e.g., with a deviation of no more than 10% of the width from the center, e.g., less than 5%) of the cover element and is substantially parallel to the length of the cover element.

[0047] The first and second movable nozzles can be positioned as the first and last elements of the nozzles, particularly when considering the line along which the nozzles are or can be positioned. In other words, the movable nozzles can be the outermost nozzles of the cover element. Specifically, the first and second movable nozzles can each be positioned closer to the edge of the cover element along the line than the fixed nozzles. This can be advantageous because, as described above, it allows the position of the movable nozzles to be adjusted to the positions of two edges of the insulation chamber to be filled (opposite each other along the line).Thus, depending on the length of the cavity to be filled with insulation material, the appropriate distance to two edges of the cavity can be adjusted using the movable nozzles, resulting in more uniform filling and, in particular, improved edge filling. Especially with movable nozzles that are rotatably mounted in the cover element, it may be possible to position them outside the line connecting the fixed nozzles, for example, by rotating them 90° from a position on the line connecting them. This can be advantageous for some cavities, particularly pointed ones.

[0048] For movable nozzles that are rotatably mounted in the cover element, the hose attachment to the nozzle can be achieved via a rotary insertion, so that the rotation does not cause problems with the supply of the insulating material. Such rotary insertions can, for example, correspond to known rotary insertions, such as those known from lance technology or water technology.

[0049] Circularly movable spigots can include a rotating disc as a closure element and be arranged in a circular opening in the cover element. A sealing element, e.g., a textile sealing element such as a membrane or fleece, can be attached to the closure element on the side facing the cavity, particularly (precisely) in the area of ​​the circular opening in the cover element. The sealing element can thus also be circular (with a recess for the spigot). It can have a thickness such that it is flush with the cover element on the side facing the cavity. The sealing element can therefore, in particular, prevent the escape of insulation material when the closure element rests on the webs of a cavity.

[0050] The device can include a measuring element for determining an operating state, for example a pressure, in particular a static pressure, e.g. the injection pressure or the back pressure, e.g. on the diaphragm.

[0051] Such a measuring element can be arranged on the cover element, e.g., in the area of ​​a nozzle for blowing in insulation material. "In the area" of a nozzle for blowing in insulation material can specifically include the measuring element being arranged closer to one nozzle for blowing in insulation material than to any other nozzle for blowing in insulation material. Alternatively or additionally, a measuring element described as being in the area of ​​a nozzle can be arranged on the nozzle itself or in the supply line to the nozzle, e.g., immediately before the sealing element. Alternatively, the measuring element can be arranged on the cover element in a common supply line for insulation material to the nozzles, e.g., a pipe, upstream of a distribution valve that distributes the insulation material to the various nozzles.

[0052] The measuring element can, in particular, measure a (static) pressure, e.g. the injection pressure or the back pressure, e.g. on the membrane, and thus allow a conclusion to be drawn about the degree of filling at that time.

[0053] A device comprising two nozzles movable in the cover element and at least one nozzle fixed in the cover element for blowing in insulating material can include, in the area of ​​the first movable nozzle, a first measuring element for determining an operating state, in particular a pressure, in the area of ​​the second movable nozzle, a second measuring element for determining an operating state, in particular a pressure, and in the area of ​​the fixed nozzle for blowing in insulating material, a third measuring element for determining an operating state, in particular a pressure.

[0054] In a device comprising more than one (fixed) nozzle for blowing in insulating material, a measuring element may be arranged in the area of ​​each (fixed) nozzle, or optionally a measuring element may be included for all (fixed) nozzles, e.g. near a central nozzle, or in the middle between the nozzles (e.g. in the area of ​​the center of gravity of the nozzles, in particular at the center of gravity of the nozzles).

[0055] The device can be controlled or controlled in such a way that the cut-off pressure, i.e. the pressure, e.g. the injection pressure or back pressure, e.g. on the membrane, at which the injection through the corresponding nozzle(s) is stopped, is higher for the movable nozzles than the cut-off pressure in the area of ​​the fixed nozzles for injection of insulating material.

[0056] This can compensate, for example, for the fact that when filling an insulation chamber, air may flow less efficiently through the edges of the chamber in the area of ​​the movable nozzles, resulting in a slower filling rate. A higher shut-off pressure allows for more uniform filling, even at the ends of the compartment, enabling a density difference of 10% or less between the edges, especially the corners, and the center of the insulation chamber.

[0057] The device can be controlled in such a way that the cut-off pressure for each measuring element, e.g., for each movable nozzle and each fixed nozzle (or for all fixed nozzles simultaneously), can be set individually. The cut-off pressure for the movable nozzles can alternatively or additionally depend on the set position of the nozzle, particularly in relation to the edge of an insulation chamber to be filled, in order to achieve a more uniform edge filling.

[0058] The device can allow greater airflow through the cover element in the area of ​​the movable nozzles, for example towards the corners and edges, than in the area of ​​the fixed nozzles for blowing in insulation material. For example, the device can include more and / or larger exhaust holes in the area of ​​the movable nozzles, e.g., in the support structure or a panel acting as a support structure, than in the area of ​​one or more fixed nozzles for blowing in insulation material. Alternatively or additionally, the exhaust holes can become larger towards the edge, so that improved airflow towards the edge can enable better edge filling.

[0059] For example, the device may allow a greater airflow in the area of ​​the corners of the cover element than in other areas of the cover element, in particular having more and / or larger (exhaust) holes than in the area of ​​a fixed nozzle for blowing in insulation material.

[0060] Alternatively or additionally, the airflow can increase towards the edges of the cover element, towards the corners. In particular, more and / or larger exhaust holes can be arranged towards the corners of the cover element. This allows more air to flow out over the corners of the cover element, and the airflow improves the transport of insulation material into the corners, thus enhancing edge and corner insulation.

[0061] The corner area can, in particular, encompass the area of ​​the cover element, which can be defined as follows. The length and width of the side of the cover element facing the insulation chamber (or the two longer sides and the two shorter sides of the rectangle on the surface of the cover element) are conceptually divided into equal parts, e.g., into thirds, quarters, fifths, or sixths. A grid is then placed along this division, essentially parallel to the length and width. This divides the side of the cover element into essentially equal-sized sections, e.g., 9, 16, 25, or 26 sections. The corner area then comprises the four sections located along the edge of the cover element (whose edges encompass the corners of the cover element).

[0062] In the direction of the corners, this can particularly include the directions leading from the injection nozzles, through which blown-in insulation can be injected, to the previously determined corners.

[0063] The device can alternatively or additionally include air intake means in the corners of the cover element, which draw in air during operation. This allows for better ventilation in the corners and enables more insulation material to be transported into the corners by the airflow, resulting in improved corner and edge filling in particular.

[0064] For example, these air intake means can be arranged on the side of the cover element facing away from the insulation chamber, or they can be designed as suction devices, e.g., in the form of small hoses or pipes, which are designed to extend through the cover element into the insulation chamber, particularly the corners of the insulation chamber, during operation of the device, and especially beyond the cover element. The air intake means can include their own filters for insulation materials or be arranged behind the membrane of the cover element so that they do not remove the insulation material from the insulation chamber.

[0065] The invention further comprises a movement device, in particular as described above, in combination with a device for blowing insulating material, especially wood fibers, into an insulating material chamber, wherein the device for blowing insulating material is movable, e.g., as a sled. The device can, in particular, be designed to be horizontally movable by means of the movement device. This can, for example, allow for advantageous positioning of the nozzles with respect to the edge of an insulating material chamber.

[0066] The device for blowing in insulation material, which is included in combination with the movement device of the invention, comprises a cover element for covering at least a portion of the insulation chamber and at least one nozzle for blowing in the insulation material. The nozzle for blowing in the insulation material may, but need not, be movably arranged in the cover element. Alternatively, it may, for example, be fixedly arranged in the cover element, and in particular, all nozzles of the device for blowing in insulation material may be fixedly arranged in the cover element. The device in combination with the movement device may include one, two, several, or all of the features previously described for a device for blowing in insulation material.

[0067] The invention further comprises a method for using the device described above. In particular, it may include all the steps previously described in connection with the device.

[0068] The method may in particular include controlling the device for blowing in insulating material so that the steps described above and / or below are carried out.

[0069] The method may include positioning the nozzle(s) according to the insulation chamber to be filled, for example, such that the distance of the respective nozzle(s) to the edges of the insulation chamber is less than 300 mm, e.g., less than 250 mm, e.g., less than 150 mm. The positioning may be carried out manually or automatically, e.g., based on a measurement, particularly optical, of the insulation chamber to be filled. The positioning of the nozzle(s) may include positioning the movable nozzle(s). Alternatively or additionally, the positioning of the nozzle(s) may include a method for using a device for blowing in insulation material, if this device is movable, e.g., as a sled.

[0070] The process also includes filling the insulation chamber.

[0071] During filling, an operating condition, in particular pressure (e.g., the blowing pressure or back pressure, e.g., on the membrane), can be measured. Specifically, the pressure can be measured in the area of ​​the movable nozzle(s) and optionally in the area of ​​one or more fixed nozzles for blowing in insulation material. If the cut-off pressure for a particular nozzle is reached in the area of ​​the movable nozzle(s) and / or at a common feed point for insulation material when insulation material is being supplied to that specific nozzle(s), the blowing of insulation material through the movable nozzle(s) can be shut off. Likewise, the blowing of insulation material through the fixed nozzle(s) can be shut off if the pressure in the area of ​​the fixed nozzle(s) and / or at the common feed point for insulation material is reached when insulation material is being supplied to that specific nozzle(s).As described above, the cut-off pressure for the movable nozzle(s) can be higher than the cut-off pressure for the fixed nozzle(s) for blowing in insulation material.

[0072] Further details of the invention are shown schematically in the following figures. Here, [the figure] shows Figure 1a Parts of an exemplary device in top view Figure 1b Parts of another exemplary device in top view Figure 2a an exemplary cross-section through a device Figure 2b an exemplary cross-section through a device Figure 3 an exemplary device Figures 4a, b Details of two exemplary devices Figure 5 Details of an exemplary cover element Figure 6 a detail of an exemplary device

[0073] Figure 1aFigure 1 shows parts of an exemplary device in a top view of a cover element 1, looking towards the side of the cover element facing away from the insulation chamber. Along axis A, which runs (essentially) parallel to the length of the cover element 1 and (essentially) centrally with respect to the width of the cover element, movable nozzles 2, 3 and fixed nozzles 5, 6 for blowing in insulation material are shown.

[0074] The movable nozzles 2, 3 are movable within the cover element 1 by means of, in particular, airtight slides 4a, which act as closing elements. The movement of the nozzles 2, 3 is specifically provided along an elongated slot arranged along line A.

[0075] Possible discrete positions of the movable nozzles 2 are shown with dashed lines. The nozzles 2, 3, can be movable to discrete positions and fixed there, or they can be continuously movable within the respective areas of the elongated holes of the cover device 1.

[0076] The movable nozzles 2, 3 and the fixed nozzles 5, 6 are arranged along a straight line A such that the movable nozzles 2, 3 are the first and last elements of the nozzles, meaning that the movable nozzles form the outermost entry points for insulating material. In particular, as shown, the movable nozzles can be positioned closer to the edge of the cover element than the fixed nozzles. This allows for improved edge filling.

[0077] Figure 1bFigure 1 shows parts of an exemplary device in a top view of a cover element 1, looking towards the side of the cover element facing away from the insulation chamber. Along axis A, which runs (essentially) parallel to the length of the cover element 1 and (essentially) centrally with respect to the width of the cover element, movable nozzles 2, 3 and fixed nozzles 5, 6 for blowing in insulation material are shown.

[0078] The movable nozzles 2, 3 are movable within the cover element 1 by means of, in particular, airtight rotating discs 4b, which act as closure elements. The movement of the nozzles 2, 3 is specifically given along the edge of a circular opening, the center of which is, by way of example, located on line A. The center of the rotating disc 4b is thus, by way of example, located on line A. Alternatively, the center of the rotating disc can also lie outside line A (not shown). Such an arrangement can be advantageous for certain compartment geometries.

[0079] Possible discrete positions of the movable nozzles 2 are shown with dashed lines, and are illustrated here as an example of a 90° rotation of the rotary disc. The nozzles 2, 3, can be movable to discrete positions and fixed there, or they can be moved continuously within the respective areas of the circumference of the holes in the cover device 1.

[0080] The movable nozzles 2, 3 and the fixed nozzles 5, 6 can be arranged along a straight line A such that the movable nozzles 2, 3 are positioned as the first and last elements of the nozzles, meaning that the movable nozzles form the outermost entry points for insulation material. In particular, as shown, the movable nozzles can be positioned closer to the edge of the cover element than the fixed nozzles. This allows for improved edge filling. For example, the distance between the two (optionally discrete) positions of the movable nozzle 2 on the straight line A (and / or the two most distant positions of the movable nozzle 2, which do not necessarily lie on the straight line A) can be between 100 mm and 400 mm, e.g., between 200 mm and 300 mm.Similarly, the distance between the two (optionally discrete) positions of the movable nozzle 3 on line A (and / or the two most distant positions of the movable nozzle 2, which need not lie on line A) can be between 100 mm and 400 mm, e.g., between 200 mm and 300 mm. The distance between the nearest fixed nozzle and the movable nozzle at the position of the movable nozzle closest to the fixed nozzle on line A can, for example, be between 400 mm and 800 mm, e.g., between 450 mm and 550 mm.

[0081] Figure 2a shows an exemplary cross-section through a device, as exemplified in particular by a cross-section through line A in Figure 1a can be obtained.

[0082] The cover element 1 includes, by way of example, a support structure 1a and a membrane 1b. An optional cushion between the support structure 1a and the membrane 1b is not shown here.

[0083] Also shown is a protective cover in the form of a hood 7 for the cover element.

[0084] The movable nozzles 2, 3 are movable in the cover element by means of airtight slides 4a, the slides covering or closing the area of ​​the cover element in which the nozzle is movable next to the nozzle as a closing element.

[0085] In the embodiment shown, the movable nozzles 2, 3 and the fixed nozzles 5, 6 project beyond the side of the cover element facing the insulation chamber 8 (which is not included by the device, but is only shown as an example for better understanding).

[0086] Figure 2bshows an exemplary cross-section through a device, as exemplified in particular by a cross-section through line A in Figure 1b can be obtained.

[0087] The cover element 1 includes, by way of example, a support structure 1a and a membrane 1b. An optional cushion between the support structure 1a and the membrane 1b is not shown here.

[0088] Also shown is a protective cover in the form of a hood 7 for the cover element.

[0089] The movable nozzles 2, 3 are movable, in particular rotatable, in the cover element by means of airtight rotary discs 4b, wherein the rotary disc 4b covers or closes the area of ​​the cover element in which the nozzle is movable, in particular the exemplary circular hole along whose edge the nozzle is movable, next to the nozzle as a closing element.

[0090] In the embodiment shown, the movable nozzles 2, 3 and the fixed nozzles 5, 6 project beyond the side of the cover element facing the insulation chamber 8 (which is not included by the device, but is only shown as an example for better understanding).

[0091] Also shown are optional sealing elements 15, which are arranged on the rotating discs to seal them against the cover element 1 and / or the webs of the compartments. For example, the sealing elements 15 have a thickness such that they are flush with the cover element on the side facing the compartment. As shown in the example, particularly in the case of a circular hole in the cover element, the sealing elements 15 can also have the shape and size of a circle, but with a recess in the area of ​​the spigot.

[0092] Figure 3Figure 1 shows an exemplary top view of parts of a device looking towards the side of the cover element facing away from the insulation chamber. The device shown comprises a movable nozzle 2 in an elongated hole, which is arranged (essentially) centrally with respect to the width of the cover element and parallel to it. The elongated hole, as the area of ​​the cover element in which the nozzle is movable, is closed next to the nozzle 2 by a slide 4a as a closing element. In an alternative embodiment (not shown here), the movable nozzle can also be arranged to move along a curved or bent track in a hole with a curved or bent boundary, e.g., rotatably in a circular or arc-shaped hole. The closing element can, in particular, be a rotating disc.

[0093] Figure 4aFigure 1 shows a cross-section through a cover element of an exemplary device with a fixed nozzle 5 for blowing in insulating material and two nozzles 2, 3 movably arranged in the cover element, wherein the area of ​​the cover element in which the nozzles are movable is closed next to the nozzles by closing elements 4.

[0094] For example, in Figure 4a Measuring elements 8, 9, and 10 are also shown, with measuring element 8 located in the area of ​​the movable nozzle 2, measuring element 9 in the area of ​​the fixed nozzle 5, and measuring element 10 in the area of ​​the movable nozzle 3. Thus, the operating state, e.g., a pressure, can be determined separately for each nozzle. In particular, if pressure is measured as the operating state, the device can be controlled, or be controllable, in such a way that the shutdown parameter, especially the shutdown pressure, can be set separately for each nozzle.

[0095] Figure 4b Figure 1 shows a cross-section through a cover element of an exemplary device with a fixed nozzle 5 for blowing in insulating material and two nozzles 2, 3 movably arranged in the cover element, wherein the area of ​​the cover element in which the nozzles are movable is closed next to the nozzles by closing elements 4.

[0096] In Figure 4bThe filling with insulating material through ports 2, 3, and 5 is carried out via a common supply 12 for insulating material to the ports, whereby the port to be filled at any given time can be selected by a distribution slide 13 on the cover element. A measuring element 11 in the common supply 12 upstream of the distribution slide 13 allows the operating status, e.g., pressure, to be measured for each port being filled. Thus, during filling, the operating status, especially the pressure, can be measured and determined individually for each port. In particular, when a cut-off parameter, especially a cut-off pressure, is reached, the distribution slide can be actuated for the respective port, so that no more insulating material is fed through the port.

[0097] Figure 5This shows details of an exemplary cover element in a top view. Specifically, elongated holes 1_2 and 1_3 are shown, in which movable nozzles for blowing in the insulation material can be arranged, as well as nozzles 1_5 and 1_6, through which insulation material can also be blown in.

[0098] Also shown in the diagram are ventilation holes ("exhaust holes") arranged in the supporting structure of the cover element. These holes allow for greater airflow through the cover element in the area of ​​the movable nozzles than in the area of ​​the fixed nozzles for blowing in insulation material. Specifically, larger (exhaust) holes are arranged in the area of ​​the movable nozzles, i.e., closer to them than to the fixed nozzles for blowing in insulation material, so that more air can escape in this area. This cover element also allows for greater airflow in the corner areas, where, as shown here, the ventilation holes (exhaust holes) are larger than in other areas of the cover element, thus ensuring good edge and, in particular, corner filling.Such hole patterns or patterns with a similar effect can be used in all support structures, in particular, for example, in the support structures of devices such as those found in . Figures 1 - 4 The devices shown include, in particular, an intake mechanism for drawing in air, especially in an optionally included protective cover, so that this can also act as a vent.

[0099] Figure 6 shows a cross-section through an exemplary device through the corner regions of the cover element 1, as it extends, for example, along line B in Figure 3 this could result in, in particular, Figure 6 Means 14 are arranged for the intake of air, which enable the intake of air particularly in the area of ​​the corners of an insulation chamber and thus allow for better filling in the edge area.

[0100] These means 14 for drawing in air in the corners may in particular include special filters for insulating materials or be arranged behind the membrane of the cover element so that they do not remove the insulating material introduced into the insulating chamber.

[0101] The means for drawing in air can optionally be included in any of the devices described above. Figures 1 - 5 It is included, although they are not explicitly shown there.

Claims

1. An apparatus for blowing insulating material, in particular wood fibre, into an insulating material chamber, comprising a cover member (1) for covering at least part of the insulating material chamber and at least one nozzle (2) for blowing in the insulating material, wherein the nozzle (2) is arranged movably in the cover member, characterized in that the region of the cover member where the nozzle can be moved is closed by a sealing element (4) next to the nozzle (2) and in that the apparatus comprises at least one additional nozzle (3, 5, 6) for blowing in insulating material, wherein the at least one additional nozzle (5, 6) for blowing in insulating material is fixedly disposed in the cover member (1).

2. The apparatus for blowing in insulating material according to claim 1, wherein the nozzle (2) can be moved within the cover member parallel and / or transverse to the length of the cover member.

3. The apparatus for blowing in insulating material according to anyone of claims 1 - 2, wherein the nozzle (2) can be moved along a bent or curved path, e.g. an arc-shaped path.

4. The apparatus for blowing in insulating material according to anyone of claims 1 - 3, wherein the movable nozzle (2) can be moved to discrete positions.

5. The apparatus for blowing in insulating material according to anyone of claims 1 - 4, wherein the movable nozzle (2) can be moved continuously.

6. The apparatus for blowing in insulating material according to anyone of claims 1 - 5, wherein a second nozzle (3) for blowing in insulating material is arranged movably in the cover member, wherein the the region of the cover member (1) where the nozzle can be moved is optionally closed around the nozzle (3) by a sealing element (4).

7. The apparatus for blowing in insulating material according to anyone of claims 1 - 6, wherein the cover member (1) comprises at least one stationary nozzle (5, 6) within the cover member (1) for blowing in insulating material and at least two movable nozzles (2, 3) within the cover member for blowing in insulating material.

8. The apparatus for blowing in insulating material according to anyone of claims 1 - 7, wherein the apparatus comprises a measuring element (8, 9, 10) for detecting an operating condition, in particular a pressure.

9. The apparatus for blowing in insulating material according to anyone of claims 7 - 8, wherein the apparatus comprises a first measuring element (8) for detecting an operating condition, in particular a pressure, in the region of the first movable nozzle, a second measuring element (10) for detecting an operating condition, in particular a pressure, in the region of the second movable nozzle and a third measuring element (9) for detecting an operating condition, in particular a pressure, in the region of the stationary nozzle for blowing in insulating material, and / or wherein the apparatus comprises a measuring element (11) for detecting an operating condition, in particular a pressure, arranged at the cover member within a common supply line (12) for insulating material upstream of a distributing valve (13).

10. The apparatus for blowing in insulating material according to anyone of claims 1 - 9, wherein the apparatus is controllable or controlled in such a way that the cut-out pressure for the movable nozzles is higher than the cut-out pressure in the region of a stationary nozzle for blowing in insulating material.

11. The apparatus for blowing in insulating material according to anyone of claims 1 - 10, wherein the apparatus allows a higher airflow in the region of the movable nozzles and wherein, in particular, the apparatus includes more and / or larger holes in the region of the movable nozzles compared to the region of a stationary nozzle for blowing in insulating material.

12. The apparatus for blowing in insulating material according to anyone of claims 1 - 11, wherein the apparatus allows a higher airflow in the corner regions and wherein, in particular, it includes more and / or larger holes compared to the region of a stationary nozzle for blowing in insulating material.

13. The apparatus for blowing in insulating material according to anyone of claims 1 - 12, wherein the apparatus comprises means (14) for sucking in air from the insulating material chamber in the corner regions.

14. A combination of a moving apparatus and an apparatus for blowing in insulating material according to anyone of claims 1 - 13, characterised in that the apparatus for blowing in insulating material is configured to be movable.

15. A method for using an apparatus according to any one of claims 1 -14, comprising: optional positioning the one or more nozzles in correspondence to the insulating material chamber to be filled, filling the insulating material chamber, wherein the method optionally further comprises: measuring a pressure, in particular in the region of the one or more movable nozzles and optionally in the region of a stationary nozzle for blowing in insulating material, stopping the blowing in of insulating material via the one or more movable nozzles when reaching the cut-out pressure in the region of the one or more movable nozzles, optionally stopping the blowing in of insulating material via the one or more stationary nozzles for blowing in insulating material when reaching the cut-out pressure in the region of the one or more stationary nozzles for blowing in insulating material, wherein optionally the cut-out pressure for the one or more movable nozzles is higher than the cut-out pressure for the one or more stationary nozzles.

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