• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a hand blower (10) for manual pneumatic drying of surfaces by a user of the hand blower, comprising a flat nozzle device (22) for ejecting compressed air from the hand blower (10) onto the surface to be dried, a handle region, in particular a handle (48 ), for manually gripping and guiding the flat nozzle device (22) over the surface to be dried, and a conveyor for conveying the compressed air to the flat nozzle device (22), wherein the flat nozzle device (22) is designed with a flat nozzle (50) and the conveyor is designed with a stationary arranged, in particular fixedly arranged high-pressure fan (30).
    公开号:AT16202U1
    申请号:TGM178/2017U
    申请日:2017-08-18
    公开日:2019-03-15
    发明作者:
    申请人:Airffect Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to a hand-held blower for the manual pneumatic drying of surfaces by a user of the hand-held blower, with a flat nozzle device for expelling compressed air from the hand-held blower, a grip area, in particular a grip for manually gripping and guiding the flat nozzle device over the surface to be dried , and a conveyor for conveying the compressed air to the flat nozzle device.
    Hand blowers in the sense of this invention are drying devices for drying wet or damp surfaces, which are guided by a user of the hand blower by hand or manually. In particular, wet window panes, wet facades or washed vehicles can be dried as wet or damp surfaces. For this purpose, the hand-held blower has a grip area on which the user can hold it by hand. The user grabs the hand-held blower there and guides it manually over the surface. The surface is pneumatically dried in that compressed or pressurized air blows away the moisture or moisture present on the surface. The air flows out of a flat nozzle device of the hand blower. The flat nozzle device directs the air that is expelled from the hand blower onto the surface to be dried.
    The invention has for its object to provide a hand blower by means of which an excellent drying result can be achieved. With conventional hand blowers, however, a rather matt surface often arises after drying.
    This object is achieved with a hand-held blower for manual, pneumatic drying of surfaces by a user using a flat nozzle device for ejecting compressed air from the hand-held blower onto the surface to be dried, a grip area, in particular a grip for manual gripping and manual Guide the flat nozzle device over the surface to be dried, and a conveyor for conveying the compressed air to the flat nozzle device is designed. The flat nozzle device is designed with a flat nozzle and the conveying device is designed with a stationary high-pressure blower, in particular a stationary high-pressure blower.
    In the hand-held blower according to the invention, the conveying device for conveying compressed air to the movable and manually guided flat nozzle device is designed by means of a high-pressure blower. The high pressure blower compresses the air at high pressure and conveys it to the flat nozzle device. The invention thus combines a manually movable and thus individually adjustable flat nozzle with a comparatively heavy, rather bulky pressure generator. The design of the high-pressure blower as a stationary device means that the high-pressure blower is in particular housed in a separate housing from the flat nozzle device, from which the compressed air can be guided to the flat nozzle device via a flexible connection. According to a preferred embodiment, it is provided here that the conveying device comprises a flexible hose which connects the high-pressure blower to the flat nozzle device. The separate housing can be set up stationary or can be provided with rollers or the like, so that it can be moved from one stationary position to another stationary position.
    With a high-pressure fan according to the invention, the solution according to the invention has shown, that amount of air can be provided at the flat nozzle device in an economical manner, which is required there for the desired drying function. Furthermore, the flat nozzle device itself can be made sufficiently small and light so that it can still be moved manually by a user of the hand-held blower according to the invention. The solution according to the invention is in clear contrast to conventional drying devices, such as a hair dryer, in which a low-pressure blower or at most a medium-pressure blower with a pressure of less than 10 mbar is used as the conveying device.
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    Patentamt But also 'to other conventional drying devices, such as on car washes, the solution according to the invention is in contrast, because there the flat nozzle device can not be moved manually and aligned individually.
    Advantageously, the high-pressure fan according to the invention has a maximum pressure or a maximum back pressure of greater than 150 mbar, preferably between 150 and 600 mbar, in particular between 150 and 500 mbar.
    Particularly advantageously, the high-pressure fan according to the invention has a maximum back pressure of greater than 250 mbar, preferably between 250 and 450 mbar, in particular between 250 and 400 mbar.
    The current consumption of the high-pressure fan according to the invention is preferably at about 400 V and its power consumption is advantageously between 3 and 10 kW, preferably between 5 and 10 kW. The high-pressure fan according to the invention is particularly preferably designed as a side channel compressor. A rare channel compressor is actually particularly advantageous in suction mode, but according to the invention it is used in blowing mode. The side channel compressor advantageously offers a higher compression and delivery rate than conventional axial or radial fans for the invention.
    A side channel blower contains a rapidly rotating impeller. The paddle wheel is arranged at a certain distance from an enclosing housing. This area is called the side channel. The mode of operation is the same as for several radial fans connected in series. The conveyed air flows laterally between the blades of the impeller and is accelerated by the rapid rotation (centrifugal force) at the same time in the direction of rotation and outwards into the side channel. The air is compressed. In the side channel, the compressed air laterally passes between the next cell of conveyor blades. The air rotates between the inlet and the outlet of the side channel compressor several times between the conveyor blade and the side channel and is compressed several times in one revolution of the blade wheel. The pressure rise is approximately linear over the length of the side channel.
    A side channel compressor works without wear, since no moving part touches the housing. Compared to centrifugal fans, the requirements for the design of the outlet duct are minimal. With a side channel compressor, a smaller structure can also be achieved, which is particularly advantageous in the solution according to the invention. The solution according to the invention is therefore advantageously also designed with a side channel compressor as a high-pressure blower, which is arranged to be manually movable together with the flat nozzle device of the hand-held blower.
    According to the high pressure blower is preferably arranged stationary.
    [0014] “Stationary” is understood to mean an arrangement in which the high-pressure fan is placed at least on a base and can be moved largely horizontally thereon. Such a base can be, in particular, a carriage that can be moved together with the high-pressure fan.
    Otherwise, the high-pressure fan according to the invention is preferably arranged completely stationary and thus immovable. As such, the high pressure blower can have a large delivery rate and a high delivery pressure.
    Furthermore, in the hand-held blower according to the invention with the high-pressure blower through the flat nozzle device, a volume flow of 200 to 1000 m3 / h, preferably 300 to 850 m3 / h, preferably 350 to 500 m3 / h, preferably 350 to 450 m3 / h , in particular 400 to 420 m3 / h, created. Alternatively, the high-pressure blower creates a volume flow of 50 to 500 m3 / h through the flat nozzle device. For this purpose, the drive motor of the high-pressure fan is connected to a control device which is set in order to drive the high-pressure fan to produce a corresponding volume flow.
    In the pneumatic drying of surfaces with the aid of compressed air
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    Difficulty in designing the parameters of the application of air to the surface in such a way that the amount of air applied per unit of time ensures a quick drying result, but the momentum applied to the water drops by the air flow is not so strong that the water drops are atomized as a result. A sputtering or splitting of the water drops adhering to the surface leads to the fact that the water mist that is created as a result can no longer be completely and quickly removed from the surface. This leads to an incomplete drying result and a cloudy surface.
    Based on tests, it has been found that the selection of a suitable flow rate is an important parameter in order to optimize the air application to the surface. In this context, it is particularly preferably provided that the high-pressure blower through the flat nozzle device has a flow rate of 50 to 300 m / s, preferably 100 to 200 m / s, preferably 100 to 150 m / s, in particular 120 to 130 m / s , is created. This is preferably the speed measured directly at the nozzle outlet. Such air flow leads to optimal drying results. The desired flow rate is set for a given volume flow by choosing a nozzle with a suitable outlet area.
    A particularly preferred embodiment provides that a volume flow of 300 to 650 m3 / h is created with the high-pressure blower through the flat nozzle device and the outlet surface of the flat nozzle is selected to achieve a flow velocity measured directly at the nozzle outlet of 100 to 200 m / s is.
    It is preferably provided that a volume flow of 350 to 450 m3 / h is created with the high-pressure blower through the flat nozzle device and the outlet surface of the flat nozzle is selected to achieve a flow velocity of 100 to 150 m / s measured directly at the nozzle outlet.
    It is preferably provided that a volume flow of 400 to 420 m3 / h is created with the high-pressure fan by the flat nozzle device and the outlet surface of the flat nozzle is selected to achieve a flow velocity of 120 to 130 m / s measured directly at the nozzle outlet.
    Since the flat nozzle device is usually not stopped directly on the surface to be dried, but at a (albeit as small as possible) distance, a preferred embodiment provides that with the high pressure blower through the flat nozzle device one at a distance of 7 cm Flow direction from the nozzle outlet measured flow rate of 40 to 100 m / s, preferably from 50 to 90 m / s, preferably from 60 to 80 m / s, in particular 70 to 80 m / s, is created.
    The conveyor is preferably further designed with a flexible hose. The hose diameter of the flexible hose is preferably between 30 and 100 mm, preferably between 40 and 100 mm, preferably between 50 and 90, in particular between 50 to 70 mm. The hose length is preferably between 5 and 10 m, in particular between 7 and 9 m. With the high-pressure blower according to the invention, a flow velocity of 20 to 100 m / s, preferably 30 to 90 m / s, in particular 60 to 80 m / s, is preferably created in the hose. The hose of this type between the conveying device and the flat nozzle device is comparatively easy to handle and, at the same time, together with the flat nozzle device creates the appropriate counterpressure for the conveying device according to the invention.
    The flow rate of the air at the nozzle outlet is determined by the volume flow and the outlet surface of the flat nozzle. An increase in the outlet area leads to an increase in the volume flow. An increase in the exit area leads to a drop in the flow velocity. In this connection, a preferred embodiment provides that the flat nozzle is designed with a flat nozzle slot which has an outlet area of 500 to 1500 mm 2 , preferably 700 to 1200 mm, in particular 850 to 950 mm 2 .
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    Patent Office The flat nozzle device of the hand blower according to the invention is created with a flat nozzle, which is preferably designed with an outlet width of 100 to 300 mm, preferably from 150 to 250 mm, preferably from 150 to 200 mm, in particular from 175 to 185 mm.
    The flat nozzle is particularly preferably designed with an outlet height of 0.5 to 20 mm, preferably 2 to 8 mm, in particular 4 to 6 mm, in particular approximately 5 mm. Such a flat nozzle device is inexpensive to manufacture, easy to handle and at the same time leads to excellent drying results.
    The exit height and the exit width within the above-mentioned ranges are preferably selected such that the above-mentioned preferred values of the exit surface result.
    In order to ensure the application of a flat and wide air jet on the surface to be dried, it is preferably provided that the flat nozzle is designed with a substantially rectangular flat nozzle slot, the ratio of the outlet width to the outlet height of 25 to 60, preferably 30 to 40, in particular from 33 to 38, is designed. As a result, the air can optimally provide not only a selective drying effect. This also ensures controlled and uniform properties of the air application over the entire area in which the air hits the surface. This is particularly the case if the flat nozzle is held in such a way that the outlet width runs parallel to the surface to be dried.
    [0029] A grip shell for holding the flat nozzle device by the user can preferably be formed on the flat nozzle. The grip shell can be located on the flat nozzle device in the immediate vicinity of its flat nozzle and thus enables the user of the flat nozzle device to precisely guide and align the flat nozzle. This is particularly important because, as experiments according to the invention have shown, the user has to guide the flat nozzle very specifically over the surface to be dried in order to achieve an excellent drying result. In addition to water drops, water-dust particles and dust particles can also be removed from surfaces alone with the solution according to the invention, so that the respective surface is dried and cleaned.
    The flat nozzle device according to the invention is preferably designed with a tube for leading the compressed air to the flat nozzle and the flat nozzle is also designed with a flat nozzle slot which is oriented inclined at an angle of less than 90 ° with respect to the longitudinal axis of the tube. The flat nozzle slot aligned in this way deliberately does not extend transversely or at right angles to the longitudinal axis of the pipe which brings the compressed air in, but is oriented at an incline to this longitudinal axis. The air that is brought in is deflected laterally at the flat nozzle. In this way, it is easier for a user of the flat nozzle device to dry both a surface that extends horizontally and a surface that extends vertically. On both surfaces, the flat nozzle which is advantageously designed in accordance with the invention can be brought up to the surface in a simple manner in such a way that with the air expelled there the water on the surface is both blown away in the direction of movement and transversely to the direction of movement to the side to another row to be run over is pushed.
    The flat nozzle slot is particularly preferably aligned with respect to the longitudinal axis of the tube at an angle between 45 ° and 75 °. The flat nozzle slot is particularly preferably oriented inclined at an angle of 60 ° with respect to the longitudinal axis of the tube. With such an orientation, on the one hand, the surface to be dried can advantageously be flowed towards when it extends horizontally or vertically, and on the other hand, such a flat nozzle device is particularly easy to handle for the user. In addition, it has been shown that with such an alignment of the flat nozzle slot, the air flowing out there is aligned in a particularly advantageous manner. The outflowing air is then redirected within the flat nozzle in such a way that it increases in pressure
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    Patent office emerges from one side of the flat nozzle slot. A particularly strong drying effect occurs on this side of the flat nozzle slot. On the other hand, less air flows out on the other side of the flat nozzle slot, but it does so more transversely to the longitudinal axis of the tube. With this air, a lateral flow is created, by means of which the liquid on the surface to be dried is increasingly pushed aside.
    The flat nozzle slot ends particularly advantageously with one of its two ends within the projection surface of the tube. If you look at this in the direction of the longitudinal axis of the tube, the flat nozzle slot thus ends at a first end within the projection surface, while it projects with its other, second end beyond the projection surface. The first end forms the side on which the air exits in a strong and straight manner and dries accordingly. The second end, on the other hand, forms the side on which the air is strongly deflected, exits to the side and thus forces the liquid on the surface to the side.
    The flat nozzle slot is also advantageously formed on a flat nozzle fan, which is designed in the shape of an equilateral triangle. This equilateral shape is obtained when one looks from the side at the flat nozzle device and the associated tube with the flat nozzle arranged thereon. With such an equilateral triangular shape it is achieved that in a region of the flat nozzle, namely in the base of the triangular shape, the compressed air coming from the tube is being passed on, whereas it is deflected comparatively strongly in the tip of the triangular shape.
    The flat nozzle device is also preferably in turn designed with a tube for bringing the compressed air to the flat nozzle and the handle is in relation to the longitudinal axis of this tube at an angle of less than 90 °, preferably at an angle between 45 ° and 75 ° , particularly preferably aligned inclined at an angle of 60 °. The handle aligned in this way is very comfortable for the user of the flat nozzle device according to the invention and at the same time provides him with clear and precise feedback as to how the air flows out at the associated flat nozzle and what distances there are to the surface to be dried.
    A preferred embodiment provides that the flat nozzle has at least one web, which divides the flat nozzle slot in the longitudinal direction into at least two slot sections. The at least one web connects the two parallel boundary walls of the flat nozzle slot and keeps them at the structurally predetermined distance from one another. The at least one web prevents expansion of the flat nozzle slot in the sense of an increase in the outlet height of the slot due to the pressure of the compressed air flowing out.
    In principle, the number of webs can be freely selected, the webs preferably being arranged uniformly distributed over the length of the flat nozzle. An embodiment with a single web is preferred, which divides the flat nozzle section into two longitudinal sections of equal length as the central web.
    The at least one web is preferably arranged directly at the nozzle outlet and can have a slight extension in the direction of the air flow.
    Another preferred development of the flat nozzle provides that it has a flexible element, in particular a flexible lip on its outlet-side edge, which serves to provide the surface to be dried in the event of a contact or a collision of the flat nozzle with the surface To protect damage. In each case, a flexible lip is preferably arranged on the two parallel longitudinal edges of the flat nozzle at the nozzle outlet and preferably extends essentially over the entire length of the longitudinal edges. In particular, the flexible lip extends over the entire circumference of the flat nozzle slot;
    The flexible element can be made of a flexible plastic material, such as e.g. made of silicone or the like consist.
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    Patent Office An exemplary embodiment of a solution according to the invention is explained in more detail with reference to the attached schematic drawings. It shows:
    1 shows a side view of an exemplary embodiment of a hand-held blower according to the invention, [0042] FIG. 2 shows a front view of the hand-held blower according to FIG. 1 with its housing, [0043] FIG. 3 shows the front view according to FIG. 2 in an enlarged view with the housing open 4 shows a side view of an exemplary embodiment of a flat nozzle device for the hand-held blower according to FIGS. 1 to 3, and [0045] FIG. 5 shows a front view of the flat nozzle slot.
    1 to 3, a hand blower 10 for the pneumatic drying of surfaces, such as motor vehicles or building glazing is shown. The hand blower 10 has a stationary part 12 shown on the left in FIG. 1 and a movable part 14 shown on the right in FIG. 1.
    The stationary part 12 comprises a stationary, cubic housing 16 and a stationary holding device 18 arranged next to it. This is formed with two vertical support posts 19 and arm supports 20 projecting horizontally therefrom.
    The movable part 14 comprises a flexible hose 21 which is connected to the housing 16 with one of its two ends. At the other end of the hose 21 there is a then manually movable flat nozzle device 22.
    The housing 16 and its contents are shown in more detail in FIG. 3. At the top of the housing 16 there is an air inlet 24 which is provided with a frustoconical filter 26. The filter 26 protrudes upwards from the top of the housing 16. The air inlet 24 leads through the housing 16 into its interior. There is an inlet pipe 28 which leads vertically downwards to a high-pressure fan 30. The high pressure blower 30 is designed as a side channel blower or side channel blower and generates a delivery pressure of greater than 100, in particular greater than 250 mbar during operation. It is driven by an electric motor 31, which has a current consumption of 400 V and a power consumption between 3 and 10 kW, in particular between 5 and 10 kW. The motor 31 is arranged in the center of the housing 16 with a vertically aligned axis of rotation. In this case, an essentially torus-shaped delivery channel 32 of the high-pressure blower 30 with the side channel (inside) contained therein is aligned in a horizontal plane, that is to say parallel to an installation surface 33. The high-pressure blower 30 is attached or fixed directly to the installation surface 33 and all around, the housing 16 has no housing base. In this way, the arrangement is statically particularly stable and acoustically particularly damped. Furthermore, the arrangement is particularly advantageous to clean.
    In the interior of the housing 16, a controller 36 for the motor 31 is also arranged, which is operatively coupled to the motor 31 by means of an electrical line 38 and which is further coupled to an external power source (not shown) by means of an electrical supply line 39 is. On the outside, where the control 36 is arranged on the inside, there is a control panel 40 on the housing 16. The control 36 can be operated on the control panel 40 by a user of the hand-held blower 10 by means of a coin payment device 42 and an emergency stop switch 44.
    On the delivery channel 32 of the high pressure blower 30, an outlet pipe 34 is also connected, which leads vertically upwards to an air outlet 35. The air outlet 35 passes through the housing 16 on its upper side. The flexible hose 21 is then connected on the outside to the air outlet 35 with one of its two ends. The hose 21 has a hose diameter of between 30 and 100 mm, in particular between 50 and 100 mm, in particular between 50 and 70 mm or between 70 and 90 mm. The hose length is between 5 and 10 m, in particular between 7 and 9 m. With the
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    High-pressure blower 30 generates a flow velocity of compressed air of 5 to 100 m / s, in particular 20 to 100 m / s, in particular 40 to 80 m / s or 50 to 90 m / s, in operation in hose 21.
    The flat nozzle device 22 located at the other end of the hose 21 comprises an approximately 50 cm long tube 46, the diameter of which corresponds to that of the hose 21. Radially projecting two handles 48 or alternatively only one handle are attached to the tube 46. Using the handles 48, an operator of the hand-held blower 10 can grip the flat nozzle device 22 and guide it manually.
    At the end of the tube 46 facing away from the hose 21 there is a flat nozzle 50 which is designed as a flat nozzle. The flat nozzle has a straight flat nozzle slot 52 with an outlet width of 100 to 250 mm, in this case 180 mm, and an outlet height of 0.5 to 20 mm, in particular from 1 to 10 mm, in this case 5 mm.
    4, an embodiment of the flat nozzle device 22 is shown, which is also designed with a tube 46 and a flat nozzle 50 attached to its end. The flat nozzle 50 has a flat nozzle slot 52 which is inclined or inclined with respect to a longitudinal axis 54 of the tube 46. The flat nozzle slot 52 makes an angle 56 of 60 ° with the longitudinal axis 54. Here, the flat nozzle slot 52 is not symmetrical to the tube 46, but is arranged eccentrically with respect to its projection surface 58. A first end region or a first end 60 of the flat nozzle slot 52 extends completely within the projection surface 58, while a second end region or a second end 62 projects beyond the projection surface 58. In this way, the flat nozzle 50 as a whole is designed as a nozzle fan 64 which, viewed from the side, as shown in FIG. 4, essentially has the shape of an equilateral triangle.
    From this nozzle fan 64 extends to the tube 46 towards a flat nozzle tube 66, the diameter of which is slightly larger than that of the tube 46 and which is thus fitted onto the tube 46. On this flat nozzle tube 66 there is a grip shell 68 on the side facing downward in relation to FIG. 4, the so-called underside of the flat nozzle device 22. The grip shell 68 encompasses the air-guiding tube 46 itself and lies flat on its outer surface approximately over half the circumference , At the same time, on this underside of the flat nozzle device 22 there is a grip tube 70 at the other end of the tube 46, which is also pushed onto the tube 46. The handle 48 protrudes downward from this handle tube 70, also at an angle 56 of 60 ° with respect to the longitudinal axis 54 of the tube 46.
    With the handle 48 and the grip shell 68, there are two handling areas for the user on the flat nozzle device 22, by means of which the flat nozzle device 22 can be guided over a surface to be dried or cleaned in a particularly advantageous and safe manner.
    5, a preferred embodiment of the flat nozzle 50 is shown, in which a central web 72 connects the upper and the lower wall delimiting the flat nozzle slot 52. The central web 72 divides the flat nozzle slot 52 into a slot section 74 and a slot section 76. The central web 72 holds the upper and lower walls at a predetermined distance from one another.
    By means of the high-pressure blower 30 is a volume flow of 50 to 500 m3 / h or from 200 to 1000 m3 / h, in particular from 350 to 500 m3 / h or from 300 to 850 during operation of the hand blower 10 through the flat nozzle device 22 m3 / h, funded. A flow velocity of 50 to 300 m / s, in particular of 100 to 200 m / s, is generated by means of the high-pressure blower through the flat nozzle device 22.
    The hand blower 10 according to the invention is suitable not only for drying surfaces, but also for cleaning or cleaning surfaces by means of blowing. In particular, the hand-held blower 10 is advantageously suitable for removing dust and sand deposits from surfaces. This function is particularly advantageous in countries around the world
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    Patent office who dust surfaces quickly due to environmental influences, such as countries in the desert and steppe zones.
    In addition, the hand blower 10 according to the invention is advantageously provided with a heater for the expelled, compressed air. This heater advantageously heats the air to be ejected in the direction of flow behind the high-pressure fan 30. It is preferably arranged in the region of the outlet pipe 34 and is designed as an electrical heater. The waste heat from the engine 31 can also advantageously be used to warm up air to be expelled. The exhaust air can be heated to a temperature of between 30 and 50 ° C by means of the waste heat.
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    LIST OF REFERENCE NUMBERS:
    Hand blower stationary part moving part
    casing
    holder
    support posts
    Arm supports
    tube
    Flat nozzle device
    air intake
    filter
    inlet pipe
    High pressure blower
    engine
    delivery channel
    footprint
    outlet pipe
    air outlet
    control
    management
    supply
    Control panel
    Münzzahleinrichtung
    Emergency switch
    pipe
    Handle
    flat die
    Flat nozzle slot
    Longitudinal axis of the pipe
    angle
    Projection area first end of the flat nozzle slot second end of the flat nozzle slot
    nozzles Delta
    Flat nozzle tube
    grip
    Handle tube
    center web
    Flat nozzle section
    Flat nozzle section
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    权利要求:
    Claims (16)
    [1]
    1. hand blower (10) for the manual pneumatic drying of surfaces by a user of the hand blower (10), with a flat nozzle device (22) for ejecting compressed air from the hand blower (10) onto the surface to be dried, a grip area, in particular a grip ( 48) for manually gripping and guiding the flat nozzle device (22) over the surface to be dried, and a conveying device for conveying the compressed air to the flat nozzle device (22), the flat nozzle device (22) being designed with a flat nozzle (50) and the conveying device is designed with a stationary high-pressure blower (30), in particular a stationary one, characterized in that with the high-pressure blower (30) through the flat nozzle device (22) a volume flow of 200 to 1000 m3 / h and a flow speed of 50 to 300 m / s is created.
    [2]
    2. Hand blower according to claim 1, characterized in that the conveying device comprises a flexible hose (21) which connects the high pressure blower (30) with the flat nozzle device (22).
    [3]
    3. Hand blower according to claim 1 or 2, characterized in that the flat nozzle (50) is designed with a flat nozzle slot (52) which has an outlet area of 500 to 1,500 mm 2 , preferably from 700 to 1,200 mm 2 , in particular from 850 to 950 mm 2 .
    [4]
    4. Hand blower according to one of claims 1 to 3, characterized in that the flat nozzle (50) is designed with a flat nozzle slot (52) having an outlet width of 100 to 300 mm, preferably from 150 to 250 mm, preferably from 150 to 200 mm, in particular from 175 to 185 mm, is designed.
    [5]
    5. Hand blower according to one of claims 1 to 4, characterized in that the flat nozzle (50) is designed with a flat nozzle slot (52) with an outlet height of 0.5 to 20 mm, preferably from 1 to 10 mm, preferably from 2 to 8 mm, in particular from 4 to 6 mm, in particular approximately 5 mm.
    [6]
    6. Hand blower according to one of claims 1 to 5, characterized in that the flat nozzle (50) is designed with a substantially rectangular flat nozzle slot (52), the ratio of outlet width to outlet height of 25 to 60, preferably from 30 to 40, in particular from 33 to 38.
    [7]
    7. Hand blower according to one of claims 1 to 6, characterized in that the flat nozzle device (22) is designed with a tube (46) for bringing the compressed air to the flat nozzle (50) and the flat nozzle (50) with a flat nozzle slot (52 ) is designed, which is oriented inclined at an angle (56) of less than 90 ° with respect to the longitudinal axis of the tube (46).
    [8]
    8. Hand blower according to claim 7, characterized in that the flat nozzle slot (52) with respect to the longitudinal axis (54) of the tube (46) is oriented at an angle (56) between 45 ° and 75 °.
    [9]
    9. Hand blower according to claim 7 or 8, characterized. characterized in that the flat nozzle slot (52) is inclined at an angle (56) of 60 ° with respect to the longitudinal axis of the tube (46).
    [10]
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    10. Hand blower according to one of claims 7 to 9, characterized in that the flat nozzle slot (52) ends with one of its two ends within the projection surface (58) of the tube (46).
    [11]
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    Fig. 1
    11. Hand blower according to one of claims 5 to 10, characterized in that the flat nozzle slot (52) is formed on a flat nozzle fan (64) which is designed in the shape of an equilateral triangle.
    [12]
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    Fig. 2
    12. Hand blower according to one of claims 1 to 11, characterized in that the flat nozzle device (22) is designed with a tube (46) for bringing the compressed air to the flat nozzle (50) and the handle (48) with respect to the longitudinal axis of the tube (46) is inclined at an angle of less than 90 °, preferably at an angle between 45 ° and 75 °, particularly preferably at an angle of 60 °.
    [13]
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    13. Hand blower according to one of claims 1 to 12, characterized in that on the flat nozzle (50) a grip shell (68) for holding the flat nozzle device (22) is formed by the user.
    [14]
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    14. Hand blower according to one of claims 1 to 13, characterized in that the flat nozzle (50) has at least one web (72) which divides the flat nozzle slot (52) in the longitudinal direction into at least two slot sections (74, 76).
    [15]
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    72 50 52 /// 7/772 //// 2 /// 7s ////// ^ ^ ZZZZZZZZZZ ^ ZZZZZZZZZZZZ ^ ZZZZZZ ^^ ZZZZZZZZZZZZ ^
    74 76
    Fig. 5
    15. Use of a hand blower according to one of claims 1 to 14 for the manual pneumatic drying of surfaces, in particular the body of a vehicle.
    16. Use of a hand blower according to claim 15, characterized in that with the high pressure blower (30) through the flat nozzle device (22) a volume flow of 300 to 850 m3 / h, preferably from 350 to 500 m3 / h, preferably 350 to 450 m3 / h, in particular 400 to 420 m3 / h, is created.
    17. Use of a hand blower according to claim 15 or 16, characterized in that with the high pressure blower (30) through the flat nozzle device (22) a flow rate of 100 to 200 m / s, preferably from 100 to 150 m / s, 'in particular 120 to 130 m / s.
    18. Use of a hand-held blower according to one of claims 15 to 17, characterized in that with the high-pressure blower (30) through the flat nozzle device (22) a flow velocity of 40 to 100 m / s measured at a distance of 7 cm in the direction of flow from the nozzle outlet, preferably from 50 to 90 m / s, preferably from 60 to 80 m / s, in particular 70 to 80 m / s.
    19. Use of a hand-held blower according to one of claims 15 to 18, characterized in that with the high-pressure blower (30) in a flexible hose (21) that connects the high-pressure blower (30) to the flat nozzle device (22), a flow rate of 20 to 100 m / s, preferably from 30 to 90 m / s, in particular from 60 to 80 m / s.
    5 sheets of drawings
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3584395A|1967-10-11|1971-06-15|Armin Peters|Automobile drying plant|
    DE2334840B1|1973-07-09|1974-10-31|Rohe Kg Adam|Motor vehicle drying system|
    EP1044859A2|1999-04-14|2000-10-18|WESUMAT Fahrzeugwaschanlagen GmbH|Drying device for drying vehicles in a car wash|
    DE102004044264B3|2004-09-10|2005-12-22|Washtec Holding Gmbh|A nozzle assembly for a vehicle wash and method for cleaning a vehicle|
    WO2016161354A1|2015-04-01|2016-10-06|Wampler Jonathan|Hands-free hairdrying device and method|
    DE1945100U|1966-06-06|1966-08-25|Eberhard Breyer|DEVICE FOR DRYING WET SURFACES, IN PARTICULAR OF MOTOR VEHICLES.|
    DE6935235U|1969-09-08|1970-12-03|Neuner Manfred|HAND DRY FAN FOR CAR WASH.|
    DE7201912U|1972-01-19|1972-04-27|Neuner M|DEVICE FOR DRYING WET SURFACES OF MOTOR VEHICLES|
    US5950331A|1998-01-09|1999-09-14|Coggins; Michael|Vehicle drying system|
    US20080216338A1|2007-03-06|2008-09-11|Doyle Dewey I|Air blade|
    DE202011001852U1|2011-01-24|2011-04-14|Lampert, Hans-Dieter|Manual motor vehicle dryers in self - service washing malls with automatic coin machine|CN112890664A|2021-01-15|2021-06-04|项红梅|Vehicle-mounted dust collector|
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    EP17797850.9A| EP3538405B1|2016-11-09|2017-11-09|Manual ventilator device|
    DK17797850.9T| DK3538405T3|2016-11-09|2017-11-09|Handheld blower|
    US16/348,374| US20200056843A1|2016-11-09|2017-11-09|Handheld blower device|
    LTEP17797850.9T| LT3538405T|2016-11-09|2017-11-09|Manual ventilator device|
    HUE17797850A| HUE053051T2|2016-11-09|2017-11-09|Manual ventilator device|
    SI201730601T| SI3538405T1|2016-11-09|2017-11-09|Manual ventilator device|
    PT177978509T| PT3538405T|2016-11-09|2017-11-09|Handheld blower device|
    ES17797850T| ES2846123T3|2016-11-09|2017-11-09|Manual blowing device|
    HRP20202068TT| HRP20202068T1|2016-11-09|2020-12-28|Manual ventilator device|
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