Hot air handheld device and method for operating a hot air handheld device

Abstract

The present invention relates to a handheld hot air device (1) for generating a hot air stream (32), comprising a housing (10) with a handle (11); a hot air blower (20) arranged in the housing (10); an unlocking button (41) for unlocking the handheld hot air device; and a start button (42) for activating the hot air blower (20); wherein the handheld hot air device (1) is configured to activate the hot air blower (20) selectively in a first operating mode or a second operating mode upon actuation of the start button (41). The present invention further relates to a corresponding method (100) for operating a handheld hot air device (1).

Description

[0001] The present invention relates to a handheld hot air device, in particular a hot air gun, for generating a hot air stream, comprising a housing with a handle and a hot air blower arranged in the housing. The present invention further relates to a method for operating a handheld hot air device.

[0002] Handheld hot air tools, also known as handheld hot air tools, have been well-known in the art for many years. Hot air tools are used for welding plastics, shrinking and molding plastics, drying paint and varnishes, vehicle repairs, and much more. Thanks to their powerful hot air blower and numerous additional nozzles and attachments, handheld tools from the Swiss company Leister can be used even under difficult conditions and for demanding welding work. A popular design is handheld hot air tools in the form of heat guns.

[0003] WO 2021 / 063553 A1 discloses a hot air handheld device as an example of an electric, pistol-like handheld device. The handheld device comprises a device body for electrically activated processing of a workpiece; a handle part connected to the device body at an angle; an actuating device for manually activating and / or deactivating the handheld device, which is arranged on the device body or the handle part; and an unlocking device for manually unlocking and / or locking the actuating device. The unlocking device is arranged on the device body or the handle part in such a way that unlocking occurs by supporting the handheld device in stable equilibrium on one of the fingers of a user's hand when a user grasps the handle part.In one embodiment, the handset has a support pin which projects forward from the finger grip area of ​​the handle part and has the unlocking device on its underside, wherein the unlocking takes place by supporting the support pin on one of the fingers of the user's hand.

[0004] Against this background, it is an object of the present disclosure to provide an improved handheld hot air device for generating a hot air stream. In particular, it would be desirable to improve operating comfort while simultaneously ensuring operational reliability. It would also be desirable to improve ergonomics and / or enable more time-efficient work. Furthermore, it would be desirable to improve the operation of a handheld hot air device while wearing a glove.

[0005] According to a first aspect of the present disclosure, a hot air handheld device for generating a hot air stream is proposed, comprising: a housing with a handle; a hot air blower arranged in the housing; an unlocking button for unlocking the hot air handheld device; and a start button for activating the hot air blower; wherein the hot air handheld device is configured to selectively activate the hot air blower in a first operating mode or a second operating mode upon actuation of the start button.

[0006] According to a further aspect of the present disclosure, a method for operating a hot air handheld device is proposed. The hot air handheld device may comprise a housing with a handle; a hot air blower for generating a hot air stream, which is arranged in the housing; a release button for unlocking the hot air handheld device; and a start button for activating the hot air blower. The method comprises the following steps: providing the hot air handheld device as described above or explained below; selecting the first or second operating mode to be selectively activated upon actuation of the start button; unlocking the hot air handheld device using the release button; and activating the hot air blower using the start button.

[0007] In the solution according to one aspect of the present invention, it is therefore proposed that the hot air handheld device is configured to activate the hot air blower optionally in a first operating mode or in a second operating mode when the start button is pressed. The functionality of the start button can be configured without mechanical modification. A particular advantage of this solution can be that a user can flexibly adapt the functionality of the start button to their needs. For example, the hot air handheld device can be configured such that the hot air blower is only active in a first operating mode while the start button is pressed and held down (ON), whereas in the second operating mode the hot air blower is and remains alternately (permanently) switched on and off (ON / OFF) when the start button is pressed.In conventional power tools, operation by a user can be made easier by providing an additional mechanical lock for the start button to keep the start button in an activated or permanently switched-on state. For this purpose, a locking pin can be provided, for example, which keeps the start button in the switched-on state until the locking pin is removed again. A disadvantage of this solution, however, can be that a mechanical lock is usually not very intuitive and requires additional mechanical components, thus increasing the design effort. Furthermore, the inventors have recognized that the operation of a mechanical lock can be perceived as unergonomic, especially when operating the tool with gloves. With the proposed solution, such additional mechanics can be avoided.

[0008] The proposed hot air handheld device further comprises an unlocking button for unlocking the hot air handheld device. This can further improve operational reliability. Preferably, the hot air handheld device can be configured such that the unlocking button for unlocking the hot air handheld device and the start button for activating the hot air blower must be pressed simultaneously, at least to start the generation of the hot air stream. Within the context of the present disclosure, this can also be understood to mean that the unlocking button and the start button must each be pressed simultaneously or sequentially within a predetermined period of time to enable the generation of the hot air stream. Such an unlocking mechanism can be advantageous, particularly in the case of a battery-operated hot air handheld device, to meet safety requirements.The release button can be positioned so that it is intuitively activated by grasping the device. With conventional hot air tools, such a release is not necessarily required, since, unlike battery-operated handheld hot air tools, they can only generate a stream of hot air when the power cord is plugged in.

[0009] According to one aspect of the invention, an advantageous combination of (intuitive) unlocking and, in particular, electronic two-button input is proposed, which is enhanced by the configurability of the start button's functionality. This also eliminates the additional effort required for mechanical locking.

[0010] In the context of the present disclosure, a button can be understood as an operating element, such as a button, a switch, a trigger, or a touch-sensitive or touch element. In the context of the present disclosure, different temperature settings or fan speeds are not necessarily considered different operating modes. As described above, the functionality of the start button is preferably configurable without mechanical modification. Switching between the first and second operating modes can preferably be performed without additional operating elements.

[0011] The hot air hand-held device can be designed to generate a hot air stream with a temperature of at least 100°C, in particular of at least 200°C, in particular of at least 300°C, in particular of at least 400°C.

[0012] The hot air hand-held device can be configured so that the start button (a) functions as a non-latching start button in the first operating mode and (b) functions as a latching start button in the second operating mode.

[0013] The hot air handheld device can be configured such that the hot air blower remains activated in the first operating mode only when the start button is pressed and held; and wherein the hot air blower remains activated in the second operating mode even after a (single) push of the start button. In particular, the hot air handheld device can be configured such that the hot air blower is deactivated in the second operating mode by a further (single) push of the start button.

[0014] The first operating mode can be referred to as the ON function, in which the device is only active when the start button is pressed without a latching action. The second operating mode can be referred to as the ON / OFF function, in which alternating ON / OFF switching occurs when the start button is pressed. One particular advantage can be that no additional locking button or locking bolt is required. Configurable operating modes for the start button can be advantageous, particularly with a battery-operated hot air handheld device. Using the ON function can be advantageous, as a battery-operated hot air handheld device requires a lot of energy, which is why the device should preferably only be switched on during the work process. The configurable use of the ON / OFF function can also be advantageous.This functionality is desirable where the device is held in the hand for a longer period of time (relieving strain on the finger) or is to be operated without being held in the hand.

[0015] The hot air handheld device can be configured so that a function of the start button can be electronically changed. An advantage of this design can be that operating convenience can be further improved while simultaneously ensuring operational reliability, with the hot air handheld device being unlocked thanks to the separate release button.

[0016] The unlock button and / or the start button can be designed as electronic buttons, electronic switches, or touch sensors. The start button and the unlock button can, for example, be binary switches with an on and an off state. One advantage is cost-effective production. Furthermore, an electronic button can be easily evaluated, for example, via a control unit such as a microcontroller with I / O ports. This makes it possible to store different operating modes in the control unit and selectively activate them when the start button is pressed. In one embodiment, the unlock button can activate a first electrical switch, and the start button can activate a second electrical switch.

[0017] The release button can be arranged in such a way that the release button is activated when the hot air handheld device is held by the handle. An advantage of this design can be intuitive unlocking of the hot air handheld device.

[0018] The hot air tool can be designed as a pistol-like hot air tool. One advantage of this design is that it allows for easy handling.

[0019] The hot air handheld device can be designed such that the handle is angled to the housing. One advantage of this design is that the hot air handheld device allows for good handling. Optionally, in a battery-operated hot air handheld device, a rechargeable battery can be located at an end of the handle opposite the housing. This can enable good weight distribution and further improve handling.

[0020] The release button can be arranged on a first side of the handle part and the start button can be arranged on a second side of the handle part. In one development, the release button can be arranged on a rear side of the handle part with respect to an air outlet direction of the hot air flow. The start button can be arranged on a front side of the handle part in the air outlet direction. In this case, the release button arranged on the rear of the handle can be actuated, for example, with the ball of the hand when gripping the device. The start button arranged on the front of the handle can be actuated, for example, with an index finger, middle finger, or ring finger. The hot air handheld device can have a symmetrical arrangement of release button and start button and be suitable for both right- and left-handed users.The hot air handheld device can, for example, be a cordless hot air handheld device with an angled handle section with a front side on the side of the hot air outlet and an opposite rear side, with a start button integrated into the front of the handle and a release button integrated into the rear.

[0021] The hot air handheld device can be configured such that the (first and / or second) operating mode can be switched by entering a key code using the release button and / or start button. In particular, the hot air handheld device can be configured such that switching between the first operating mode and the second operating mode is effected by multiple actuations, in particular by double actuation, of the start button within a predetermined time interval. Example of an ON / OFF operating mode: If, for example, two quick consecutive presses of the start button are detected (in particular while the release button is pressed), the device switches on permanently, for example until the start button is pressed again (a third time). Pressing or releasing the release button is not absolutely necessary to switch the device off.Example of an ON operating mode: If no second button is pressed after the first button is pressed, the device is switched off again or runs as long as the start button is pressed or held.

[0022] The hot air handheld device can be configured to activate the hot air blower optionally in the first operating mode, the second operating mode, or a third operating mode when the start button is pressed. In other words, in addition to the first and second operating modes, one or more additional operating modes are conceivable, e.g., a boost function. For example, a boost function can be triggered by repeatedly pressing the start button. This allows increased power to be accessed for a limited period, even with battery-operated hot air handheld devices, without permanently increasing power consumption and excessively impairing running time.

[0023] The hot air handheld device can be designed as a battery-operated hot air handheld device. One advantage of this design can be improved handling and flexibility. The proposed solution can be particularly advantageous for a battery-operated hot air handheld device in that an energy-saving non-latching operating mode (also referred to as ON operating mode or trigger mode) can be flexibly combined with a selectively activatable latching operating mode (also referred to as ON / OFF operating mode or latch mode), whereby increased operational reliability is provided thanks to the release button.

[0024] The hot air handheld device can be configured to return to the first operating mode after the release button is released. This can be particularly advantageous for a battery-operated hot air handheld device. For example, after the release button is released, the device can return to an energy-saving operating mode. In the first operating mode, the start button can be configured, in particular, to function as a non-latching start button. One advantage of this configuration can be that the device saves energy. However, another advantage of this configuration can be improved operational reliability, since the device restarts in a defined state after a possible change of user.

[0025] The advantages described in detail above for the first aspect of the invention apply accordingly to the other aspects of the invention.

[0026] It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

[0027] Exemplary embodiments of the invention are illustrated in the following drawings and explained in more detail in the following description. They show: Fig. 1 a schematic representation of a hot air hand-held device for generating a hot air stream; Fig. 2 a schematic representation of a hot air hand-held device for generating a hot air stream according to a further embodiment; Fig. 3 a perspective view of the hot air hand tool from Fig. 2; Fig. 4 a detailed view of a handle part with release button and start button; Fig. 5 a schematic representation of a hot air hand-held device for generating a hot air stream according to a further embodiment as a rod-shaped hot air hand-held device; and Fig. 6 a flowchart of a method for operating a hot air hand-held device.

[0028] Fig. 1 shows a schematic representation of a hot air handheld device for generating a hot air flow. The hot air handheld device has a housing 10 with a handle 11. A hot air blower 20 is arranged in the housing 10 of the hot air handheld device 1. The hot air blower has a fan 21 for generating an air flow and a heating element 22 for heating the air flow. The heating element 22 can be, for example, an electrically heatable heating element, in particular a ceramic heating element. Cold or not yet heated air 31 can be sucked in through an air inlet 12, heated by the hot air blower 20, and output as hot air 32 via an air outlet 13. The air inlet 12 can be arranged in a rear area, such as on the back of the housing 10. However, other arrangements are also conceivable, such as a lateral air inlet.The air outlet 13 may be located in a front region, such as a front side of the housing 10. The air outlet 13 may include an outlet nozzle to provide a desired flow profile.

[0029] The hot air handheld device has an unlocking button 41 for unlocking the hot air handheld device and a start button 42 for activating the hot air blower 20. The proposed hot air handheld device 10 is configured to activate the hot air blower 20 when the start button 42 is actuated, either in a first operating mode or in a second operating mode. For example, the hot air handheld device 1 can be configured so that the start button 42 (a) functions as a non-latching start button in the first operating mode and (b) functions as a latching start button in the second operating mode. Therefore, instead of providing a further mechanical element, such as an additional mechanical lock, to keep the start button in an activated state orTo maintain the hot air blower in a permanently switched-on state, a function of the start button can be changed, and the hot air handheld device can be configured to activate the hot air blower 20 either in the first operating mode or the second operating mode, particularly when the start button 42 is actuated in a similar manner. In other words, pressing the start button can immediately activate it in a different operating mode. In conventional solutions, for example, a locking pin can be provided, which keeps the start button switched on until the locking pin is removed again.

[0030] As described above, the hot air handheld device 1 can be configured such that the hot air blower 20 remains activated in the first operating mode only upon pressing and holding the start button 42; and wherein the hot air blower 20 remains activated in the second operating mode upon a (single) pressing of the start button 42. In particular, the hot air handheld device can be configured such that the hot air blower 20 is deactivated in the second operating mode by a further (single) pressing of the start button 42.

[0031] The first operating mode can, as described above, be referred to as the ON function, in which the hot air blower 20 is only active during a non-latching operation of the start button. The second operating mode can be referred to as the ON / OFF function, wherein an alternating ON / OFF switching of the hot air blower 20 occurs when the start button 42 is pressed. One advantage can be that no additional locking button or locking bolt is required. Configurable operating modes for the start button can be advantageous, particularly with a battery-operated hot air handheld device. The use of the ON function can be advantageous, since a battery-operated hot air handheld device requires a lot of energy, which is why the device should preferably only be switched on during the work process. The configurable use of the ON / OFF function can also be advantageous.This functionality is desirable where the device is held in the hand for a longer period of time (relieving strain on the finger) or is to be operated without being held in the hand.

[0032] By further providing the hot air handheld device 1 with the release button 41 for unlocking the hot air handheld device 1, ease of use can be further improved while simultaneously ensuring operational reliability, with the hot air handheld device being unlocked thanks to the separate release button. The release button 41 is an optional element. However, particularly in conjunction with the proposed solution of selectively activating the hot air blower 20 in different operating modes when the start button 41 is pressed, separate unlocking with the release button is advantageous in order to avoid being surprised by the hot air blower being activated in an unintended operating mode. The release button 41 for unlocking the hot air handheld device can also be understood as an unlock or release function, which may be required before the hot air flow is generated.

[0033] In the Fig. 1, the hot air hand-held device 1 is designed as a pistol-like hot air hand-held device, wherein the handle part 11 is arranged at an angle to the housing 10. In the embodiment shown in Fig. In the example shown in Figure 1, the handle part is arranged at a right angle to the main body of the housing 10. However, arrangements at other angles are also conceivable, as for example in Fig. 2 to Fig. 4 shown.

[0034] The release button 41 is preferably arranged in such a way that when the hot air hand-held device 1 is held at the handle part 11, the release button 41 is actuated. Fig. In the embodiment shown in Figure 1, the release button 41 is arranged on a first side of the handle part 11, and the start button 42 is arranged on a second side of the handle part 11. Here, the release button 41 is arranged on a rear side of the handle part 11 relative to an air outlet direction of the hot air stream 32, and the start button 42 is arranged on a front side of the handle part 11 in the air outlet direction.

[0035] The hot air handheld device 1 can have a controller 43. The controller 43 can be connected to the release button 41 and the start button 42. The controller 43 can also be connected to the hot air blower 20 or the fan 21 and / or the heating element 22. For example, the controller 43 can be implemented with a microcontroller with a memory device. The release button 41 and the start button 42 can be switches, in particular binary switches, whose actuation can be evaluated by the controller 43. Various operating modes can be stored in the controller 43, in which the hot air blower 20 can be selectively activated when the start button 41 is actuated. For example, a first operating mode in which the start button 42 functions as a non-latching start button, and a second operating mode in which the start button 42 functions as a latching start button.

[0036] As described above, the hot air handheld device 1 can be configured such that the (first and / or second) operating mode can be switched by entering a key code using the release button 41 and / or start button 42. In this case, a control signal in the form of a key code can be provided via the release button 41 and / or start button 42, which causes a switch in the operating mode in which the hot air blower 20 is activated when the start button 42 is pressed. An advantage of this solution is that the desired operating mode can be easily selected using the release button 41 and / or start button 42—even without additional control elements. Additional control elements can be provided, but are not necessarily required.For example, switching between the first operating mode and the second operating mode can be achieved by multiple actuations, in particular double actuation of the start button 42, within a predetermined time interval. The release button 41 and / or start button 42 can preferably also be actuated with one hand wearing a work glove. This can facilitate operation.

[0037] The hot air handheld device 1 can be configured to return to the first operating mode after the release button 41 is released, in particular, the start button 42 functioning as a non-latching start button in the first operating mode. This ensures that the hot air handheld device 1 starts in a defined state, for example, in an energy-saving operating mode to extend the operating time of a battery-operated hot air handheld device.

[0038] As in Fig. As shown in Figure 1, the hot air handheld device 1 can be designed as a battery-operated hot air handheld device. For this purpose, a battery 50 can be arranged at an end of the handle part 11 opposite the main body of the housing 10. Other arrangements, such as a battery at least partially integrated into the handle part 11, are also conceivable.

[0039] Fig. 2 and Fig. 3 show a schematic representation of a side view and a perspective representation of a hot air hand-held device 1 for generating a hot air stream according to a further embodiment. Fig. 4 shows a detailed view of a handle part with release button 41 and start button 42 corresponding to area A in Fig. 2.

[0040] The one with reference to Fig. 2 to Fig. 4 can be designed in the same way as the schematically illustrated hot air handheld device from Fig. 1. To avoid repetition, reference is made to the above description. Identical elements are designated by identical reference numerals.

[0041] In the Fig. In the embodiment shown in Figure 2, the handle portion 11 is arranged at an angle on an upper main part of the housing 10. This can enable ergonomic operation. The release button 41 is again arranged on a rear side of the handle portion 11. The start button 42 is arranged on a front side of the handle portion 11. Thus, the hot air handheld device 1 can be intuitively unlocked by grasping the handle portion 11, and the hot air blower can be activated, for example, with an index finger of the gripping hand. A battery or a receptacle for a battery 50 is arranged on an underside of the handle portion.

[0042] Fig. 4 shows a schematic sectional view of the handle part 11 of the hot air hand-held device corresponding to the area A in Fig. 2. The release button 41 can have a release button element 45 and a release switch 46. The start button 42 can have a start button element 47 and a start switch 48. By pressing the release button 41, an release signal can be provided to the controller 43 to unlock the hot air handheld device 1. By pressing the start button 42, a start signal can be provided to the controller 43 to activate the hot air blower 20 (see. Fig. 1) for generating a hot air stream, which is discharged at an air outlet 13 (cf. Fig. 1, Fig. 2) can be provided.

[0043] Fig. 5 shows a schematic representation of a hot air handheld device 1 for generating a hot air stream according to a further exemplary embodiment as a rod-shaped hot air handheld device 1. In a rod-shaped hot air handheld device 1, the handle 11 can be designed as part of the rod-shaped housing 10. The hot air handheld device 1 can optionally be a battery-operated hot air handheld device. For this purpose, a rechargeable battery 50 can be arranged in the handle 11, for example. However, other arrangements are also conceivable.

[0044] As in Fig. As shown in Figure 5, the hot air handheld device 1 has an air inlet 12 and an air outlet 13. The generated hot air is discharged via the air outlet 13. A hot air blower 20 with a fan 21 and a heating element 22 is arranged in the housing 10. It is understood that the air inlet 12 can also be arranged at a different location, for example, in a central area, in order to provide space for a battery in the rear area.

[0045] The hot air hand-held device 1 further comprises a release button 41 for unlocking the hot air hand-held device 1 and a start button 42 for activating the hot air blower 20. In the Fig. In the embodiment shown in Figure 5, the release button 41 can be arranged, for example, on a top side of the housing 10 or handle part 11. An advantage of this solution can be that the hot air handheld device 1 is intuitively unlocked when grasped. In particular, a palm of the hand can actuate the release button 41. The start button 42 can be arranged on a side of the housing 10 or handle part 11. For example, the start button 42 can be arranged such that it can be actuated with a thumb when grasping the hot air handheld device 1.

[0046] Optionally, a further control element and / or a display device 16 can be provided. For example, the operating mode that is optionally activated when the start button is pressed can be displayed on a display device.

[0047] Fig.6 shows a flowchart of a method 100 for operating a hot air handheld device 1. In a first step S101, a hot air handheld device is provided as described above or explained below. In a second step S102, a first or second operating mode is selected, which is to be selectively activated upon pressing the start button. In a third step S103, the hot air handheld device is unlocked using the unlocking button, and the hot air blower is activated using the start button.

[0048] In summary, the solutions proposed herein provide an improved hot air handheld device and method for operating a hot air handheld device. In particular, operating convenience can be further improved while simultaneously ensuring operational reliability. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This 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

[0000] WO 2021 / 063553 A1

[0003]

Claims

[1] Hot air hand-held device (1) for generating a hot air stream (32) with - a housing (10) with a handle part (11); - a hot air blower (20) arranged in the housing (10); - a release button (41) for unlocking the hot air hand-held device; and - a start button (42) for activating the hot air blower (20); wherein the hot air hand-held device (1) is configured to selectively activate the hot air blower (20) in a first operating mode or a second operating mode upon actuation of the start button (41). [2] Hot air hand-held device according to claim 1, wherein the start button (42) (a) functions as a non-latching start button in the first operating mode and (b) functions as a latching start button in the second operating mode. [3] Hot air hand-held device according to one of the preceding claims, wherein the hot air blower (20) remains activated in the first operating mode only upon actuation and holding of the start button (42); and wherein the hot air blower (20) remains activated in the second operating mode upon actuation of the start button (42). [4] Hot air hand-held device according to claim 3, wherein the hot air blower (20) is deactivated in the second operating mode by a further actuation of the start button (42). [5] Hot air hand-held device according to one of the preceding claims, wherein a function of the start button (42) is electronically changeable. [6] Hot air hand-held device according to one of the preceding claims, wherein the release button (41) is arranged such that when the hot air hand-held device (1) is held on the handle part (11), the release button (41) is actuated. [7] Hot air hand-held device according to one of the preceding claims, wherein the hot air hand-held device (1) is designed as a pistol-like hot air hand-held device. [8] Hot air hand-held device according to one of the preceding claims, wherein the handle part (11) is arranged at an angle on the housing (10). [9] Hot air hand-held device according to one of the preceding claims, wherein the release button (41) is arranged on a first side of the handle part (11) and the start button (42) is arranged on a second side of the handle part (11). [10] Hot air hand-held device according to claim 9, wherein the release button (41) is arranged on a rear side of the handle part (11) with respect to an air outlet direction of the hot air flow (32) and the start button (42) is arranged on a front side of the handle part (11) in the air outlet direction. [11] Hot air hand-held device according to one of claims 1 to 6, wherein the hot air hand-held device is designed as (1) a rod-shaped hot air hand-held device. [12] Hot air hand-held device according to one of the preceding claims, wherein the hot air hand-held device (1) is configured such that the operating mode can be switched by entering a key code using the unlocking button (41) and / or start button (42); in particular, switching between the first operating mode and the second operating mode is effected by multiple actuation, in particular by double actuation, of the start button (42) within a predetermined time interval. [13] Hot air hand-held device according to one of the preceding claims, wherein the hot air hand-held device (1) is designed to activate the hot air blower (20) optionally in the first operating mode, in the second operating mode or in a third operating mode when the start button (42) is actuated. [14] Hot air hand-held device according to one of the preceding claims, wherein the hot air hand-held device (1) is designed as a battery-operated hot air hand-held device. [15] Hot air hand-held device according to claim 14, wherein the battery-operated hot air hand-held device is designed to switch back to the first operating mode after the release button (41) is released, in particular wherein the start button (42) functions as a non-latching start button in the first operating mode. [16] Method for operating a hot air hand-held device (1) comprising a housing (10) with a handle part (11); a hot air blower (20) for generating a hot air stream, which is arranged in the housing; an unlocking button (41) for unlocking the hot air hand-held device; a start button (42) for activating the hot air blower; the method comprising the following steps: - Providing the hot air hand-held device (1) according to one of the preceding claims (S101); - selecting the first or second operating mode (S102) to be activated when the start button (42) is pressed; - Unlock the hot air handheld device (1) using the unlocking button (41) and activate the hot air blower (20) using the start button (42) (S103).

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