EP2165768B1 - Hochdruckauslösehebel mit Kraftbetätigungsmechanismus mit einzelnem Übersetzungshebel - Google Patents

Hochdruckauslösehebel mit Kraftbetätigungsmechanismus mit einzelnem Übersetzungshebel Download PDF

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Publication number
EP2165768B1
EP2165768B1 EP08016362A EP08016362A EP2165768B1 EP 2165768 B1 EP2165768 B1 EP 2165768B1 EP 08016362 A EP08016362 A EP 08016362A EP 08016362 A EP08016362 A EP 08016362A EP 2165768 B1 EP2165768 B1 EP 2165768B1
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EP
European Patent Office
Prior art keywords
trigger
effective
link
joint
pivot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08016362A
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English (en)
French (fr)
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EP2165768A1 (de
Inventor
Svavar Sigurkarlsson
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Nilfisk AS
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Nilfisk Advance AS
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Publication date
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Priority to EP08016362A priority Critical patent/EP2165768B1/de
Publication of EP2165768A1 publication Critical patent/EP2165768A1/de
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Publication of EP2165768B1 publication Critical patent/EP2165768B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3013—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve
    • B05B1/302—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a lift valve with a ball-shaped valve member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B08B3/028—Spray guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the present invention generally relates to a trigger gun for a high-pressure washer, and in particular to the trigger mechanism of such a trigger gun. More specifically, the present invention relates to a trigger mechanism requiring only a small force from the grip of a users hand to maintaining an open valve of the trigger gun.
  • a trigger gun for high-pressure washers generally comprises a handle, a trigger, and a valve, The flow of pressurized liquid is controlled by moving the trigger relative to the handle, which opens or closes the valve by way of a trigger mechanism.
  • the handle In the grip of a user's hand, the handle usually rests against the palm with the thumb oppositely placed from the rest of the fingers, of which some or all rest on the trigger.
  • a certain minimum effort is required to operate the trigger gun. Firstly, the weight of the trigger gun and the components attached to the trigger gun has to be supported against the force of gravity. Secondly, the pushing force from the deployment of the pressurized liquid must be compensated for. Under certain circumstances the force of gravity can be counteracted by the pushing force, e.g. when pointing the trigger gun slightly downwards. Thirdly, a force of action is required for activating the trigger, which can be a tiring exercise when using a trigger gun over an extended period of time.
  • a trigger that amplifies the force of action by way of a simple levering mechanism, where the trigger itself acts as the lever with the fulcrum or pivot point located close to the valve.
  • EP1389495 Another example is disclosed In EP1389495 , which involves a simple levering mechanism with a piston-like pulling mechanism driven by the pressurized liquid upstream from the closing element of the valve. The pulling mechanism provides a helping moment on the levering mechanism, making the trigger easier and less tiresome to pull.
  • the piston-like pulling mechanism requires a high-precision manufacturing and is vulnerable to impurities in the pressurized liquid.
  • DE19614663 Another example of a technique for lowering the required force of action for controlling the valve is disclosed in DE19614663 , which involves a mechanical linkage for obtaining a mechanical advantage at the actuation of the valve.
  • the mechanical linkage is only involves three effective links, which requires two of the effective links to have a variable length. This is achieved by having one of the joints following a sliding motion relative to the other two joints when pressing the trigger, which requires a high-precision manufacturing of the components involved.
  • the high precision required in both of the referenced techniques is a disadvantage as it increases the production cost and the vulnerability of the trigger gun.
  • a trigger gun according to the preamble of claim 1 that employs a cross linkage for obtaining an advantage at the actuation of the valve.
  • a similar trigger gun is disclosed in DE 690 762 , which also employs a cross linkage.
  • US 2,107,686 is disclosed a spray gun for spraying fabrics, particularly for moisturizing them before ironing.
  • the disclosed spray gun employs a mechanical four linkage connected in a closed loop in order to actuate a needle valve.
  • An object according to the present invention is to provide trigger gun for a high-pressure washer, where the trigger gun has a robust trigger mechanism that requires only a small force of action on the trigger to operate.
  • a particular feature of the present invention is that it allows for a trigger mechanism that requires the smallest force of action when the trigger is fully pulled.
  • the trigger mechanism may amplify the force in the grip formed between the thumb and the index, or the thumb and the long finger, the most, which allows a more balanced and ergonomic handling of the trigger gun. The force required of a users grip for activating the trigger gun, as well as the force required for continuously operating the trigger gun, may be reduced.
  • an advantage with the present invention is that the operating of the trigger requires a smaller effort.
  • the trigger mechanism may amplify a force employed in the pulling of the trigger to a greater force opening the valve. Further, the trigger mechanism may also amplify the force applied to the trigger for maintaining the valve in a certain state, e.g. in a fully open state, thereby reducing the effort required for continuously operating the trigger gun.
  • the four links of the mechanical linkage i.e. the handle, trigger, elbow link and rocker arm, do not require high-precision machining when manufactured.
  • a mechanical link of this kind can be made robust, without the use of high strength materials. This allows for the use of lighter materials for the links, which may reduce the total weight of the trigger.
  • the large number of possible geometric or spatial configurations of four-link mechanical linkages allows for an ergonomically optimized trigger gun, being both light weight and comfortable to handle.
  • the trigger can be made to pivot around a point located below the user's hand, instead of above it, which makes the grip contract the most at the index finger when pulling the trigger.
  • this is an advantage as the index and long fingers are both longer and stronger than the ring and little fingers.
  • the handle is connected to the trigger by a first joint or pivot, the trigger to the elbow link by a second joint or pivot, the elbow link to the rocker arm by a third joint or pivot, and the rocker arm to the handle by a fourth joint or pivot.
  • the second area or point of contact may then be located closer to the fourth joint or pivot than to any of the first, second, and third joints or pivots. This will allow the mechanical linkage to provide a high ratio between the force of reaction over the force of action, as this ratio increases with a decreased distance to the fourth joint or pivot. However, the distance over which the force of reaction can act becomes shorter with a decreased distance to the fourth joint or pivot. Hence, a certain distance between the second area or point of contact and the fourth joint or pivot is required for the trigger mechanism to work.
  • a line between the fourth joint or pivot and the first joint or pivot defines an effective handle link
  • a line between the first joint or pivot and the second joint or pivot defines an effective trigger link
  • a line between the second joint or pivot and the third joint or pivot defines an effective elbow link
  • a line between the third joint or pivot and the fourth joint or pivot defines an effective rocker link.
  • the effective elbow link is shorter than any of the effective handle, trigger, and rocker links.
  • the distance the trigger needs to be pulled increases with the length of the effective elbow link.
  • this particular feature allows for a more compact construction and a slimmer handle of the trigger gun, with the effective trigger link inside the grip of the user's hand.
  • the effective trigger link and the effective elbow link jointly define an effective trigger angle, which may be obtuse and increase, or may be acute and decrease, when pulling the trigger and activating the trigger mechanism.
  • the effective elbow link and the effective rocker link jointly define an effective elbow angle, which may be acute and increase, or may be obtuse and decreases, when pulling the trigger and activating the trigger mechanism.
  • all of the four given combinations of the effective trigger and elbow angles may give a ratio of the force of reaction over the force of action that increases with the pulling of the trigger. This is an advantage as less effort is required when continuously operating the trigger gun.
  • the obtuse and increasing effective trigger angle may be favourable for a construction with a trigger that is pulled towards the palm of a user's hand when activated, where the valve is located in front of the hand. Further, this configuration will enable a more compact design, as the acute effective elbow angle brings the effective trigger link closer to the effective handle link.
  • the obtuse and increasing effective trigger angle combined with an obtuse and decreasing effective elbow angle, may be favourable for a construction with a trigger placed in the palm of the user's hand and pressed towards the fingers when activated. Alternatively, this configuration may be favourable if the valve is placed behind or on top of the hand of the user and if the trigger is pulled towards the palm.
  • the acute and decreasing effective trigger angle may be favourable for a construction with a trigger that is pulled towards the palm of a user's when activated, where the valve is placed in front of the user's hand, and the angle between the effective rocker link and the effective handle link has to be small.
  • the acute and decreasing effective trigger angle combined with an obtuse and decreasing effective elbow angle, may be favourable for a construction with a trigger that is pulled towards the palm of a user's when activated, where the valve is placed behind or on top of the user's hand, and the angle between the effective rocker link and the effective handle link has to be small.
  • the handle may be constructed for being received in the palm of a user's hand so that the second joint or pivot and/or the third joint or pivot are located closer to the thumb than the little finger of the user's hand.
  • this relative positioning of the thumb and the third joint or pivot means that the index and long fingers performs the longest pulling motion when pulling the trigger, as the effective trigger link performs a pivotal motion around the first joint or pivot. This is an advantage, since the index and long fingers are longer and contributes more to the strength of a grip than the index and little finger.
  • the handle may be constructed for being received in the palm of a user's hand so that the trigger moves relative to the users palm when employing the trigger for opening the valve. Further, the handle may be constructed for being received in the palm of a user's hand so that a finger of the users hand is inside the closed loop of the mechanical linkage. Clearly, this will allow a more compact and less cumbersome construction of the trigger gun.
  • FIG. 1 A cross-sectional view of a presently preferred embodiment of trigger gun 1 for a high-pressure washer is shown in Fig. 1 .
  • the handle 2 of the trigger gun 1 rigidly supports a valve 3 for controlling and limiting the flow of pressurized liquid from a high-pressure washer.
  • the pressurized liquid usually having a pressure in the range 100-8000 bar, is led from the high-pressure washer to the trigger gun 1 by a hose, which is connected to the trigger gun 1 at the inlet connection 26.
  • the liquid flows from the inlet connection 26 through the valve 3 to the outlet connection 27, to which a hollow lance, wand or a similar tubular device can be coupled for employing the pressurized liquid at a distance from the trigger gun 1.
  • the valve 3 has an actuation element 6 extending outside the valve house 36 for opening the valve 3.
  • the actuation element 6 constitutes the outer part of a valve body 19 having a valve stem 22 that pass through a downstream valve passage 25 via a valve seat 20 to an upstream valve passage 24, where it expands in cross-section to enable a sealing against the valve seat 20.
  • a valve spring 21 in the form of a compression coil spring is fixated between the valve body 19 and a valve spring support 23, which is rigidly supported by the valve house 36. If the pressure is the same in the upstream valve passage 24 and the downstream valve passage 25, the valve spring 21 will provide a closing force in the direction of the valve stem 22, thereby pressing the valve body 19 against the valve seat 20.
  • a force, having an opposite direction and being at least as strong as the closing force, has to be applied to the actuation element 6 in order to open the valve 3.
  • the pressurized liquid With a closed valve 3, the pressurized liquid will establish a significant pressure difference between the upstream valve passage 24 and the downstream valve passage 25. The pressure difference will result in a closing force, which has to be exceeded by a reaction force applied to the actuation element 6 in order to open the valve 3.
  • the pressure difference between the upstream valve passage 24 and the downstream valve passage 25 With an open valve 3, the pressure difference between the upstream valve passage 24 and the downstream valve passage 25 will be considerably less, since now the pressurized liquid also defines the pressure in the latter passage, i.e. the closing force will be smaller. This means that the needed reaction force applied to the actuation element 6 is smaller for maintaining an open valve 3, or for opening the valve 3 further when already being open, than for opening the valve 3 when being closed.
  • the trigger gun has a trigger mechanism in the form of a mechanical linkage constituted by a handle 2, a trigger 4, an elbow link 7 and a rocker arm 8, which are connected in close loop by four joints 10-13.
  • the trigger 4 has a first area or point of contact 5, e.g. corresponding to the location at which the long finger of a user is placed when using the trigger gun-
  • the rocker arm has a second area or point of contact 9 for cooperating with the actuation element 6 by conveying a force component being parallel to the valve stem 22.
  • the mechanical linkage can convert a force of action applied to the first area or point of contact 5 to a force of reaction at the second area or point of contact 9.
  • a trigger spring 28 in the form of a compression coil spring is fixated between the handle 2 and the trigger 4. The trigger spring 28 will act to hold the trigger 4 in the position corresponding to a closed valve 3, and the force provided by the trigger spring 28 has to be overcome before opening the vale 3.
  • one or more of the joints z-13 may be a pivot or a contraption with a similar function, where the pivotally connected links forming the mechanical linkage also may slide relative to one another.
  • Fig. 2 The same cross-sectional view as in Fig. 1 of the presently preferred embodiment of trigger gun 1 is shown in Fig. 2 , but with the effective links of the mechanical linkage outlined, i.e. the effective handle link 14, effective trigger link 15, effective elbow link 16, and effective rocker link 17 represent the in Fig. 1 described handle, trigger, elbow link, and rocker arm, respectively.
  • An effective links is defined as the line between the two joints of each physical link, i.e. the effective trigger link 15 as the line between the first and the second joints 10-11, the effective elbow link 16 as the line between the second and third joints 11-12, the effective rocker link 17 as the line between the third and fourth joints 12-13, and the handle link 14 as the line between the fourth and the first joints 13 and 10.
  • the quadrilateral defined by the positions of the four joints 10-13 is concave in the sense that the second joint 11 is inside the triangle defined by the first 10, third 12 and fourth 13 joints.
  • the first 10 joint, the fourth13 joints, and the associated effective handle 14 link are considered fixed when employing the mechanical linkage, whereby all other joints and effective links move relative to these.
  • the effective trigger link 15 and the effective elbow link 16 define an obtuse effective trigger angle 29, the effective elbow link 16 and the effective rocker link 17 define an acute effective elbow angle 12, the effective rocker link 17 and the effective handle link 14 define an acute effective rocker angle 36, and the effective handle link 14 and the effective trigger link 15 define an acute effective handle angle 37.
  • Fig. 3 the same cross-sectional view of a presently preferred embodiment of a trigger gun as in Fig. 2 is shown, but with the trigger activated and the valve in its open position instead of its closed position.
  • all of the effective trigger 29, handle 37, elbow 18, and rocker 38 angles increase when activating the trigger gun, i.e. when opening the valve by way of the trigger 15.
  • FIG. 4 a schematic overview of some of the qualitative features of the mechanical linkage in Fig. 2 and Fig. 3 is given.
  • a force of action is represented by a first arrow 30 acting on the effective trigger link 15 at the effective first point of contact 5'.
  • the first 10 and fourth 13 joints are also here considered fixed.
  • the force of action will result in a force of reaction represented by a second arrow 31 at the effective second point of contact 9', which is located on the effective rocker link 17 at the fourth joint 13.
  • the ratio of the absolute force of reaction over the absolute force of action i.e. the effective mechanical advantage, is greater than one. In Fig. 4 this is represented by the first arrow 30 being shorter than the second arrow 31.
  • the first arrow 30 is perpendicular to the effective trigger link 15 and the second arrow is perpendicular to the effective rocker link.
  • the force of action applied to the first area or point of contact 5 does not have to be perpendicular to the corresponding effective trigger link 15.
  • the first arrow 30 can be viewed as being the force component of the force of action that is perpendicular to the effective trigger link.
  • the second arrow 31 can be viewed as being the force component of the force of reaction that is perpendicular to the effective rocker link 17.
  • first 5' and second 9' points of contact do not have to coincide with first and second areas or points of contact in Fig. 1 , respectively. Instead they are, together with the first 30 and second 31 arrows, to be viewed as representation of the moments involved when applying the trigger mechanisms.
  • the physical 5 and the effective 5' second points of contact 5 may be located offset relative to one another by an offset distance. However, they may share the same radial distance to the fourth joint, around which they can move in a circular path.
  • Fig. 5 another possible configuration of the mechanical linkage is depicted.
  • the effective elbow link16 is the shortest effective link and the first 10 and fourth 13 joints are considered fixed.
  • the effective elbow angle 18 is now obtuse and decreases when the corresponding trigger mechanism is employed.
  • the mechanical linkage is convex in the sense that the second joint 11 is outside the triangle defined by the first 10, third 12, and fourth 13 joints.
  • Fig. 6 yet another possible configuration is depicted.
  • the effective elbow link16 is the shortest effective link and the first 10 and fourth 13 joints are considered fixed.
  • the effective trigger angle 29 and the effective elbow angle 18 are both acute, where the former decreases and the latter increases upon the employing of the trigger mechanism.
  • the mechanical linkage is complex in the sense that the effective trigger link 15 and the effective rocker arm 17 cross one another.
  • Fig. 7 yet another possible configuration is depicted.
  • the effective elbow link16 is the shortest effective link and the first 10 and fourth 13 joints are considered fixed.
  • the effective trigger angle 29 is acute and the effective elbow angle 18 is obtuse, where both decrease when the trigger mechanism is employed.
  • the mechanical linkage is concave in the sense that the third joint 12 is inside the triangle defined by the first 10, second 11, and fourth 13 joints.
  • Figs.4-7 the mechanical advantage, i.e. the ratio of the length of the second arrow 31 over the length of the first arrow 30, is greater than one and increases when the trigger moves in the direction indicated by the first arrow 30.
  • the mechanical advantage i.e. the ratio of the length of the second arrow 31 over the length of the first arrow 30.
  • the first arrow 30 acts from a direction such that the mechanical advantage will increase if the effective trigger link 15 moves in the direction of the first arrow 30. If the direction of the first arrow 30 is reversed, the direction of the second arrow 31 would be the opposite and the mechanical advantage would decrease when the trigger link 15 moves in the reverse direction.
  • the mechanical advantage is defined as the ratio of the length of the second arrow 31 over the length of the first arrow 30, or the absolute value of the force of reaction over the absolute value of the force of action, it can be defined as the ratio between the distances travelled by the effective first point of contact 5' and the effective second point of contact 9' when the mechanical linkage is shifted.
  • this definition is only relevant for small distances.

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Claims (8)

  1. Eine Ventilpistole (1) für einen Hochdruckreiniger, wo die Ventilpistole (1) einen Griff (2), ein Ventil (3), das durch den Griff (2) starr unterstützt ist und das einen offenen und einen geschlossenen Zustand hat, einen Auslöser (4) mit einem ersten Bereich oder Kontaktpunkt (5) für die Applizierung eines Drucks mit der Hand, und eine Auslöseeinrichtung
    umfasst,
    wo das Ventil (3) ausserdem ein Betätigungsteil (6) für das Öffnen und Schliessen des Ventils (3) umfasst, und wo die Auslöseeinrichtung ein Zusammenwirken zwischen dem Auslöser (3) und dem Betätigungsteil (6) erbringt um eine manuelle Beherrschung des Öffnens und Schliessens des Ventils (3) zu erzielen,
    wo die Auslöseeinrichtung ausserdem eine mechanische Verbindung umfasst, die durch den Griff (2), den Auslöser (3), ein Kniestück (7) und einen Kipphebel (8) die zentral in einem Kreislauf verbunden sind, dargestellt wird, wo der Griff (2) mit dem Auslöser (4) durch ein erstes Gelenk oder Zapfen (10) verbunden ist, wo der Auslöser (4) durch ein zweites Gelenk oder Zapfen (11) mit dem Kniestück (7) verbunden ist, wo das Kniestück (7) durch ein drittes Gelenk oder Zapfen (12) mit dem Kipphebel (8) verbunden ist, wo der Kipphebel (8) durch ein viertes Gelenk oder Zapfen (13) mit dem Griff (2) verbunden ist, wo der Kipphebel (8) einen zweiten Bereich oder Kontaktpunkt (9) hat für das Zusammenwirken mit dem Betätigungsteil (6), wo die Auslöseeinrichtung eine auf dem zweiten Bereich oder Kontaktpunkt (9) angewandte Kraftwirkung auf eine verstärkte Auflagekraft auf dem zweiten Bereich oder Kontaktpunkt (9) überträgt und das Betätigungsteil (6) beeinflüsst, wo der zweite Bereich oder Kontaktpunkt (9) näher am vierten Gelenk oder Zapfen (13) angeordnet ist als am ersten (10), zweiten (11) und dritten (12) Gelenk oder Zapfen,
    gekennzeichnet durch eine Linie zwischen dem vierten Gelenk oder Zapfen (13) und dem ersten Gelenk oder Zapfen (10), die eine effektive Griffverbindung (14) definiert, eine Linie zwischen dem ersten Gelenk oder Zapfen (10) und dem zweiten Gelenk oder Zapfen (11), die eine effektive Auslöserverbindung (15) definiert, eine Linie zwischen dem zweiten Gelenk oder Zapfen (11) und dem dritten Gelenk oder Zapfen (12), die eine effektive Kniestückverbindung (16) definiert, eine Linie zwischen dem dritten Gelenk oder Zapfen (12) und dem vierten Gelenk oder Zapfen (13), die eine effektive Kippverbindung (17) definiert, wo die effektive Kniestückverbindung (16) kürzer ist als die effektive Griffiverbindung (14), Auslöserverbindung (15) und Kippverbindung (17).
  2. Eine Ventilpistole (1) nach Anspruch 1, wo die effektive Auslöserverbindung (15) und die effektive Kniestückverbindung (16) zusammen einen effektiven Steuerwinkel (29) definieren, wo der effektive Steuerwinkel (29) stumpf ist und grösser wird, wenn das Ventil (3) mittels des Auslösers (4) und der Auslöseeinrichtung geöffnet wird.
  3. Eine Ventilpistole (1) nach Anspruch 1, wo die effektive Auslöserverbindung (15) und die effektive Kniestückverbindung (16) zusammen einen effektiven Steuerwinkel (29) definieren, wo der effektive Steuerwinkel (29) spitz ist und kleiner wird, wenn das Ventil (3) mittels des Auslösers (4) und der Auslöseeinrichtung geöffnet wird.
  4. Eine Ventilpistole (1) nach einem der Ansprüche 1 bis 3, wo die effektive Kniestückverbindung (16) und die effektive Kippverbindung (17) zusammen einen effektiven Kniestückwinkel (18) definieren, wo der effektive Kniestückwinkel (18) spitz ist und grösser wird, wenn das Ventil mittels des Auslösers (4) und der Auslöseeinrichtung geöffnet wird.
  5. Eine Ventilpistole (1) nach einem der Ansprüche 1 bis 3, wo die effektive Kniestückverbindung (16) und die effektive Kippverbindung (17) zusammen einen effektiven Kniestückwinkel (18) definieren, wo der effektive Kniestückwinkel (18) stumpf ist und kleiner wird, wenn das Ventil mittels des Auslöser (4) und der Auslöseeinrichtung geöffnet wird.
  6. Eine Ventilpistole (1) nach einem der Ansprüche 1 bis 5, wo der Griff (2) so gestaltet ist, dass er für die Aufnahme in die Handfläche des Benutzers geeignet ist, so dass das zweite Gelenk oder Zapfen (11) und/oder das dritte Gelenk oder Zapfen (12) näher am Daumen als am kleinen Finger der Hand des Benutzers angeordnet sind.
  7. Eine Ventilpistole (1) nach einem der Ansprüche 1 bis 6, wo der Griff (2) so gestaltet ist, dass er für die Aufnahme in die Handfläche des Benutzers geeignet ist, so dass der Auslöser (4) sich relativ zur Handfläche des Benutzers bewegt, wenn der Auslöser (4) betätigt wird für die Öffnung des Ventils (3).
  8. Eine Ventilpistole (1) nach einem der Ansprüche 1 bis 7, wo der Griff (2) so gestaltet ist, dass er für die Aufnahme in die Handfläche des Benutzers geeignet ist, so dass ein Finger der Hand des Benutzers sich in dem Kreislauf der mechanischen Verbindung befindet.
EP08016362A 2008-09-17 2008-09-17 Hochdruckauslösehebel mit Kraftbetätigungsmechanismus mit einzelnem Übersetzungshebel Not-in-force EP2165768B1 (de)

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EP08016362A EP2165768B1 (de) 2008-09-17 2008-09-17 Hochdruckauslösehebel mit Kraftbetätigungsmechanismus mit einzelnem Übersetzungshebel

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EP08016362A EP2165768B1 (de) 2008-09-17 2008-09-17 Hochdruckauslösehebel mit Kraftbetätigungsmechanismus mit einzelnem Übersetzungshebel

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EP2165768A1 EP2165768A1 (de) 2010-03-24
EP2165768B1 true EP2165768B1 (de) 2012-08-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450025A1 (de) 2013-12-12 2019-03-06 Alfred Kärcher SE & Co. KG Ventilpistole für ein hochdruckreinigungsgerät

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2013407398B2 (en) 2013-12-12 2017-05-25 Alfred Karcher Gmbh & Co. Kg Valve gun for a high-pressure cleaning device
CN108698055B (zh) * 2016-03-23 2021-12-10 阿尔弗雷德·卡赫欧洲两合公司 用于高压清洁设备的阀枪

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2107686A (en) * 1935-09-27 1938-02-08 Binks Mfg Co Spray gun for spraying fabrics
DE690762C (de) * 1937-12-23 1940-05-06 Leipziger Tangier Werk Akt Ges Spritzpistole
GB513013A (en) * 1938-03-29 1939-10-02 Basil Marven Improvements in or relating to hand-controlled nozzles for the delivery of fluids or powdered material
GB826699A (en) * 1956-02-25 1960-01-20 Waldemar Foerstner Improvements in or relating to regulators for nozzles
DE19614663C2 (de) 1996-04-13 2003-11-20 Suttner Gmbh & Co Kg Ventilpistole für ein Wasser-Hochdruckreinigungsgerät
DE10159680C1 (de) 2001-11-30 2003-05-08 Kaercher Gmbh & Co Alfred Schließvorrichtung für die Flüssigkeitsabgabeleitung eines Hochdruckreinigungsgerätes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3450025A1 (de) 2013-12-12 2019-03-06 Alfred Kärcher SE & Co. KG Ventilpistole für ein hochdruckreinigungsgerät

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