Abstract:
A high-pressure cleaning appliance is provided, including a housing having a motor and a pump, driven by the motor, arranged therein, and including at least two rotatably mounted running wheels, a push bar movable back and forth between a parking position and an operating position, and a locking device for releasably locking the push bar, the locking device including an actuating member which is coupled by at least one coupling member to at least one locking member which interacts with the push bar and is movable from a locking position to a release position by actuating the actuating member. So that the high-pressure cleaning appliance can be assembled more cost-effectively and more easily, the locking device includes a prefabricated constructional unit which forms the actuating member, the at least one coupling member and the at least one locking member and is movably mounted on or in the housing.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
       [0001]    This application is a continuation of international application number PCT/EP2012/072421, filed on Nov. 12, 2012, which is incorporated herein by reference in its entirety and for all purposes. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    The invention relates to a high-pressure cleaning appliance comprising a housing having a motor and a pump for a cleaning liquid, driven by the motor, arranged therein, and comprising at least two rotatably mounted running wheels for moving the high-pressure cleaning appliance, a push bar movable back and forth between a parking position and an operating position, and a locking device for releasably locking the push bar in the parking position and/or in the operating position, the locking device comprising an actuating member which is coupled by at least one coupling member to at least one locking member which interacts with the push bar and is movable from a locking position to a release position by actuating the actuating member. 
         [0003]    A cleaning liquid, preferably water, can be pressurized and directed at a surface to be cleaned by means of such high-pressure cleaning appliances. The cleaning liquid can be supplied to the pump of the high-pressure cleaning appliance via a liquid supply line. The cleaning liquid is pressurized by the pump, and the pressurized cleaning liquid can be discharged via a liquid discharge line, for example, a high-pressure hose. The high-pressure cleaning appliance has at least two rotatably mounted running wheels for moving the high-pressure cleaning appliance on a floor surface. To make it easier for the user to move the high-pressure cleaning appliance, the high-pressure cleaning appliance comprises a push bar, which can be moved back and forth between a parking position and an operating position and can be gripped by the user. The push bar can be locked in the parking position and/or in the operating position. For this purpose, a locking device is used, which has a locking member which interacts with the push bar to lock the push bar. By actuating an actuating member, the locking member can be moved from a locking position in which the locking member locks the push bar to a release position in which the locking member releases the push bar. At least one coupling member is used for coupling the actuating member to the at least one locking member. 
         [0004]    To assemble the high-pressure cleaning appliance, its components must be fitted together without the occurrence of any assembly errors. 
         [0005]    The object of the present invention is to develop a high-pressure cleaning appliance of the kind mentioned at the outset in such a way that it is more cost-effective and easier to assemble. 
       SUMMARY OF THE INVENTION 
       [0006]    This object is accomplished, in accordance with the invention, in a high-pressure cleaning appliance of the generic kind in that the locking device comprises a prefabricated constructional unit which forms the actuating member, the at least one coupling member and the at least one locking member and is movably mounted on or in the housing. 
         [0007]    The provision of a prefabricated constructional unit forming the actuating member, the at least one coupling member and the at least one locking member facilitates assembly of the high-pressure cleaning appliance as the prefabricated constructional unit can be mounted on or in the housing without the individual components of the constructional unit having to be fitted together in several assembly steps on the housing. Instead, the complete constructional unit can be positioned in a single assembly step on or in the housing. Assembly of the high-pressure cleaning appliance can, therefore, be achieved within a shorter time and, consequently, more cost-effectively. Provision of the prefabricated constructional unit also eliminates assembly errors. 
         [0008]    The push bar is preferably lockable in its operating position. This allows the user to move the push bar into its operating position in order to move the high-pressure cleaning appliance and to lock it in this position so that he can then grip the push bar in order to push or press the high-pressure cleaning appliance. 
         [0009]    Alternatively or additionally, it may be provided that the push bar is lockable in its parking position. This allows the user to carry the high-pressure cleaning appliance by the push bar, with the push bar locked in the parking position. 
         [0010]    The push bar preferably comprises a handle which, in the parking position of the push bar, is at a smaller distance from the housing of the high-pressure cleaning appliance than in the operating position. 
         [0011]    It is advantageous for the push bar to be displaceably and/or pivotably mounted on the housing. 
         [0012]    In particular, it may be provided that the push bar is mounted on the housing so as to be movable about a displacement axis aligned parallel to a longitudinal axis of the high-pressure cleaning appliance back and forth between its parking position and its operating position and that it is lockable in both the parking position and the operating position. 
         [0013]    It is expedient for the actuating member to comprise an actuating ram, and for the at least one coupling member to comprise a first and a second end and to be articulated at the first end to the actuating ram and at the second end to a locking member. The at least one coupling member is, therefore, articulatedly connected, on the one hand, to the actuating ram of the actuating member and, on the other hand, to a locking member. This allows a movement of the actuating member to be transmitted from the actuating ram via the at least one coupling member to a locking member, and owing to the articulated connection of the at least one coupling member, on the one hand, to the actuating ram and, on the other hand, to a locking member, a change in the direction of movement can be easily achieved and so the direction of movement of the actuating member does not have to coincide with the direction of movement of the at least one locking member. For example, it may be provided that the actuating member can be moved by the user in a first direction of movement and, as a result, at least one locking member moves in a second direction of movement, which is aligned at an angle, preferably perpendicularly, to the first direction of movement. 
         [0014]    It is advantageous for the at least one coupling member to be integrally connected to the actuating ram by a film hinge on the ram side. In such a configuration, the actuating ram and the at least one coupling member form a one-piece component which is preferably produced from a plastic material. The film hinge on the ram side allows the at least one coupling member to be moved, for example, pivoted or slidingly displaced relative to the actuating ram. 
         [0015]    Alternatively or additionally, it may be provided that the at least one coupling member is integrally connected to a locking member by a film hinge on the locking side. In such a configuration, the at least one coupling member and the locking member connected thereto form a one-piece component which is preferably produced from a plastic material. The film hinge on the locking side allows the locking member to be moved, for example, pivoted or slidingly displaced relative to the coupling member. 
         [0016]    It is particularly advantageous for the prefabricated constructional unit forming the actuating member, the at least one coupling member and the at least one locking member to be configured as a one-piece plastic molded part. The number of components of the high-pressure cleaning appliance can thereby be reduced, which, in turn, makes a particularly cost-effective and simple assembly of the high-pressure cleaning appliance possible. 
         [0017]    In an advantageous embodiment, the actuating member and the at least one locking member are displaceably mounted on the housing. For this, the housing comprises bearing elements which interact with the actuating member and with the at least one locking member, respectively, in such a way that the actuating member and the at least one locking member can be displaced relative to the housing. 
         [0018]    It is expedient for the actuating member to be displaceable along a first displacement axis, and for the at least one locking member to be displaceable along a second displacement axis, the second displacement axis being aligned at an angle to the first displacement axis. 
         [0019]    The first displacement axis may, for example, be aligned parallel to a longitudinal axis of the high-pressure cleaning appliance. 
         [0020]    In particular, it may be provided that the high-pressure cleaning appliance can be positioned on a standing surface, for example, a floor surface, with vertically aligned longitudinal axis, and with the first displacement axis also vertically aligned. 
         [0021]    The second displacement axis is expediently aligned perpendicularly to the first displacement axis. 
         [0022]    It may be provided that the second displacement axis is aligned transversely to a longitudinal axis of the high-pressure cleaning appliance. 
         [0023]    The user can actuate the actuating member in order to move the at least one locking member. In particular, it may be provided that the user pushes the actuating member in the manner of a push button. 
         [0024]    It is particularly advantageous for the at least one locking member to be movable from the locking position to the release position against the action of a spring-elastic restoring force. The movement of the actuating member is transmitted to the at least one locking member via the at least one coupling member. Actuation of the actuating member causes the locking member to pass from its locking position in which it fixes the push bar to a release position in which it releases the push bar. The passing from the locking position to the release position expediently occurs against the action of a spring-elastic restoring force. Such a configuration has the advantage that the at least one locking member can automatically adopt its locking position when the user moves the push bar into the parking position or into the operating position. The push bar can, therefore, be automatically locked in the desired position. Consequently, the provision of the spring-elastic restoring force facilitates the handling of the high-pressure cleaning appliance. 
         [0025]    In an advantageous embodiment of the high-pressure cleaning appliance in accordance with the invention, the at least one locking member is connected to the push bar in a positively locking manner in the locking position. For example, the push bar can comprise at least one positive locking element which, in the parking position or in the operating position of the push bar, interacts with a locking member to establish a positively locking connection. The positive locking element may, for example, comprise a projection which engages in a positively locking manner a recess in a locking member in order to lock the push bar. Alternatively or additionally, it may be provided that the at least one locking member comprises a projection which enters a recess of the positive locking element in order to lock the push bar. 
         [0026]    It is expedient for the push bar to comprise at least a pair of positive locking elements arranged in spaced relation to each other, as this allows the push bar to be locked in the parking position and in the operating position, with a positive locking element interacting with a locking member in each position. 
         [0027]    It is particularly advantageous for the at least one locking member to be latched to the push bar in the locking position. The at least one locking member may foam a latching element which interacts with a corresponding latching element of the push bar in order to lock the push bar in a desired position. 
         [0028]    In an advantageous embodiment, the housing of the high-pressure cleaning appliance comprises a first guide channel in which a guide section of the actuating member is displaceably held. As mentioned above, it may, for example, be provided that the actuating member comprises an actuating ram. It is expedient for at least a section of the actuating ram to be displaceably held in the first guide channel of the housing. 
         [0029]    Alternatively or additionally, it may be provided that the housing comprises for each locking member a second guide channel in which the respective locking member is displaceably mounted. In this case, it is advantageous for each locking member to be fully accommodated by a second guide channel so that the second guide channel surrounds the locking member completely in the circumferential direction. 
         [0030]    The push bar is expediently of U-shaped configuration and has two legs which are connected to each other by a handle, and the housing preferably has two third guide channels in each of which a leg is displaceably mounted. In an advantageous embodiment of the invention, the third guide channels are aligned parallel to a longitudinal axis of the high-pressure cleaning appliance. 
         [0031]    In an advantageous embodiment of the invention, the legs of the U-shaped push bar each carry at least at their end facing away from the handle a first positive locking element which, in the operating position of the push bar, interacts in a positively locking manner with a locking member. 
         [0032]    The legs expediently each carry a first positive locking element and a second positive locking element positioned at a distance from the first positive locking element, the first positive locking element interacting, in the operating position of the push bar, in a positively locking manner with a locking member, and the second positive locking element interacting, in the parking position of the push bar, in a positively locking manner with a locking member. 
         [0033]    It is advantageous for the prefabricated constructional unit of the locking device to form two locking members which are each articulatedly connected to the actuating member by a coupling member and each interact with a leg of the push bar to lock the push bar. The provision of two locking members increases the mechanical stability of the locking of the push bar. This reduces the risk, for example, that the push bar will move unintentionally from its operating position to its parking position when the high-pressure cleaning appliance is moved. 
         [0034]    The two locking members are advantageously each displaceably mounted in a guide channel of the housing. In such an embodiment of the invention, the housing forms for each of the two locking members a separate guide channel which accommodates the respective locking member. 
         [0035]    It is expedient for the two locking members to be displaceable along a common displacement axis. 
         [0036]    It is advantageous for the common displacement axis of the two locking members to be aligned perpendicularly to a longitudinal axis of the high-pressure cleaning appliance. 
         [0037]    In an advantageous embodiment of the invention, the two locking members execute a movement in opposite directions when transferring from their locking position to their release position. 
         [0038]    In a particularly preferred configuration of the high-pressure cleaning appliance in accordance with the invention, the two locking members are arranged mirror-symmetrically in relation to a longitudinal axis of the actuating member. 
         [0039]    It is advantageous for the two coupling members by means of which the locking members are each connected to the actuating member to be arranged mirror-symmetrically in relation to the longitudinal axis of the actuating member. 
         [0040]    The mirror-symmetrical arrangement of the locking members and/or of the coupling members facilitates assembly of the prefabricated constructional unit of the locking device. The risk of assembly errors is thereby kept particularly low. 
         [0041]    In an advantageous embodiment of the invention, the housing comprises two half-shells in each of which a locking member is displaceably held. The use of two half-shells results in a further simplification of assembly of the high-pressure cleaning appliance. When assembling the high-pressure cleaning appliance, a locking member can be inserted into each half-shell, and the two half-shells can then be fitted together. 
         [0042]    It is particularly advantageous for the two half-shells to jointly form a guide channel in which the actuating member is displaceably held. The guide channel can surround a guide section of the actuating member in the circumferential direction. The guide channel is formed jointly by the two half-shells. This allows the actuating member to be inserted with its guide section into the guide channel when the two half-shells are fitted together. 
         [0043]    It is expedient for the two half-shells to define a parting plane which in a position of use of the high-pressure cleaning appliance is vertically aligned. In this context, a position of use of the high-pressure cleaning appliance is understood as meaning a position of the high-pressure cleaning appliance which it can adopt during operation of the high-pressure cleaning appliance. In this position of use, a longitudinal axis of the high-pressure cleaning appliance can, for example, be vertically aligned. The provision of a vertical parting plane enables particularly simple assembly of the high-pressure cleaning appliance as the two half-shells can be positioned at the sides of the motor pump unit so as to surround it completely in the circumferential direction after completion of assembly. The motor pump unit is formed by the motor and the pump, which can be fitted together in a previous assembly step. 
         [0044]    It is expedient if, before fitting together the two half-shells, a locking member can be inserted, in each case, in a guide channel formed by a half-shell and if the actuating member can then be inserted in a guide channel formed jointly by the two half-shells. This enables particularly easy assembly of the high-pressure cleaning appliance. 
         [0045]    The following description of an advantageous embodiment of the invention serves for a more detailed explanation in conjunction with the drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0046]      FIG. 1  shows a first perspective representation of a high-pressure cleaning appliance in accordance with the invention, with a push bar of the high-pressure cleaning appliance in a parking position; 
           [0047]      FIG. 2  shows a second perspective representation of the high-pressure cleaning appliance from  FIG. 1 , with the push bar in an operating position; 
           [0048]      FIG. 3  shows a perspective representation of the high-pressure cleaning appliance in the manner of an exploded drawing; 
           [0049]      FIG. 4  shows a perspective representation of a half-shell of a housing of the high-pressure cleaning appliance from  FIG. 1  in combination with the push bar and a locking device, with the push bar in its operating position; 
           [0050]      FIG. 5  shows a perspective representation of a half-shell of the housing of the high-pressure cleaning appliance corresponding to  FIG. 4 , with the push bar in its parking position; 
           [0051]      FIG. 6  shows a perspective representation of a prefabricated constructional unit of the locking device; and 
           [0052]      FIG. 7  shows a front view of the prefabricated constructional unit from  FIG. 6 . 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0053]    A high-pressure cleaning appliance  10  in accordance with the invention is shown schematically in the drawings in a position of use in which a longitudinal axis  12  of the high-pressure cleaning appliance  10  is vertically aligned. The high-pressure cleaning appliance  10  comprises a housing  14  with an upper housing part  16  and a lower housing part  18 , which jointly surround a motor pump unit  20  with a motor  22  and a pump  24  driven by the motor  22 . A cleaning liquid, preferably water, can be pressurized by the pump  24 . The cleaning liquid can be supplied to the pump  24  via a suction connection  26 , and the cleaning liquid pressurized by the pump  24  can be discharged by the pump  24  via a pressure connection  28 . A suction line, preferably a suction hose, can be connected to the suction connection  26 , and a pressure line, for example, a pressure hose, can be connected to the pressure connection  28 . 
         [0054]    Two running wheels  30 ,  32  are rotatably mounted on the lower housing part  18 . The high-pressure cleaning appliance  10  can be moved along a floor surface by means of the running wheels  30 ,  32 . To do so, the high-pressure cleaning appliance  10  can be pivoted from its position of use shown in  FIG. 1 , in which the longitudinal axis  12  is vertically aligned, about a common axis of rotation  34  of the two running wheels  30 ,  32 , so that the high-pressure cleaning appliance  10  can then be moved in the manner of a sack truck. 
         [0055]    To make it easier for the user to move the high-pressure cleaning appliance  10 , the high-pressure cleaning appliance  10  has a U-shaped push bar  36  which can be moved back and forth between a parking position shown in  FIG. 1  and an operating position shown in  FIG. 2 . The push bar  36  has a first leg  37  and a second leg  38 , which are rigidly connected to each other by a handle  39 . In the operating position, the handle  39  is at a greater distance from the housing  14  than in the parking position. This makes it easier for the user to grip the handle  39  to move the high-pressure cleaning appliance  10  in a standing position. 
         [0056]    The upper housing part  16  comprises a first half-shell  41  and a second half-shell  42 . The two half-shells  41 ,  42  surround in the circumferential direction an upper area of the motor pump unit  20  that faces the handle  39  and are configured substantially mirror-symmetrically in relation to each other. They define between them a substantially vertically aligned parting plane  44  in which they meet with their edges facing each other and form between them a parting line  45 . 
         [0057]    On their outer sides facing away from each other, the two half-shells  41 ,  42  each carry a cover part  47  and  48 , respectively, which is screwed to the respective half-shell  41 ,  42 . The cover parts  47 ,  48  cover one guide channel each which is formed by the half-shells  41  and  42 , respectively, and in which a leg  37  and  38 , respectively, of the push bar  36  is displaceably mounted. One guide channel  50  is shown schematically in  FIG. 3 . 
         [0058]    In alignment with the guide channels  50 , the lower housing part  18  has a quiver-like receptacle  52  and  53 , respectively. When the push bar  36  adopts its parking position, an end area of the legs  37 ,  38  enters each receptacle  52 ,  53 . When the push bar  36  is moved into its operating position, the free ends of the legs  37 ,  38  come out of the receptacles  52 ,  53  and adopt a position at the level of the guide channels  50 . 
         [0059]    Held on each of the free ends of the legs  37 ,  38  is a first positive locking element  55  and  56 , respectively, by means of which the push bar  36  can be locked in its operating position. Held at a distance from the first positive locking element  55  and  56 , respectively, on each leg  37 ,  38  is a second positive locking element  57  by means of which the push bar  36  can be locked in its parking position. 
         [0060]    The high-pressure cleaning appliance  10  comprises a locking device  60  formed by a locking unit  62  shown enlarged in  FIGS. 6 and 7  and a restoring spring  63  shown in  FIGS. 3 and 4  for locking the push bar  36 . 
         [0061]    The locking unit  62  is configured as a prefabricated constructional unit in the form of a plastic molded part. It comprises an actuating member  65  with an actuating head  66  and an actuating ram  67  integrally connected thereto, and a first and a second coupling member  69 ,  70  by means of which the actuating ram  67  is articulatedly connected to a first and a second locking member  72  and  73 , respectively. The two coupling members  69 ,  70  are of identical construction. The first coupling member  69  has a first end  75  and a second end  76 , and the second coupling member  70  has a first end  78  and a second end  79 . Connected to the first end  75  of the first coupling member  69  is a first film hinge  81  by means of which the first coupling member  69  is integrally and articulatedly connected to the actuating ram  67 . Connected to the second end  76  of the first coupling member  69  is a second film hinge  82  by means of which the first coupling member  69  is integrally and articulatedly connected to the first locking member  72 . 
         [0062]    Connected in a corresponding manner to the first end  78  of the second coupling member  70  is a third film hinge  84  by means of which the second coupling member  70  is integrally and articulatedly connected to the actuating ram  67 , and connected to the second end  79  of the second coupling member  70  is a fourth film hinge  85  by means of which the second coupling member  70  is integrally and articulatedly connected to the second locking member  73 . 
         [0063]    The first half-shell  41  forms a guide channel  87  apparent from  FIGS. 4 and 5  for the first locking member  72 , and in an identical manner the second half-shell  42  forms a guide channel, which is not apparent from the drawings, for the second locking member  73 . 
         [0064]    The two half-shells  41  and  42  each form a channel half  90   a  and  90   b,  respectively, of a joint guide channel  90 , which accommodates the actuating head  66  and a guide section  92  of the actuating ram  67  that directly adjoins the actuating head  66 . This will be clear, in particular, from  FIGS. 4 and 5 . 
         [0065]    The actuating ram  67  carries at its lower end facing away from the actuating head  66  a holding peg  95  on which the restoring spring  63  configured as a helical spring is fixed. The restoring spring  63  adopts a position in a spring receptacle which is formed by the two half-shells  41 ,  42  and is oriented in alignment with the joint guide channel  90 . 
         [0066]    The restoring spring  63  exerts on the actuating ram  67  a vertically upwardly directed spring force which is transmitted via the coupling members  69 ,  70  to the locking members  72 ,  73 . Owing to the spring-elastic restoring force, the locking members  72 ,  73  are pressed against the legs  37  and  38 , respectively, of the push bar  36 . The locking members  72 ,  73  each have a U-shaped latching receptacle  97 ,  98 , which faces a leg  37  and  38 , respectively. When the push bar  36  adopts its operating position, the latching receptacles  97 ,  98  each interact in a positively locking manner with a corresponding latching projection of the first positive locking elements  55 ,  56 . The push bar  36  can thereby be locked in its operating position. When the push bar  36  adopts its parking position, the latching receptacles  97 ,  98  each interact in a positively locking manner with a corresponding latching projection of the second positive locking elements  57 . The push bar  36  can thereby be locked in its parking position. 
         [0067]    If the locking of the push bar  36  is to be released, the user actuates the actuating member  65  by pressing the actuating head  66  and with it also the actuating ram  67  vertically downwards along a first displacement axis  101  against the action of the restoring spring  63 . The guide section  92  of the actuating ram  67  is thereby displaced in the guide channel  90  along the first displacement axis  101 . The movement of the actuating ram  67  along the first displacement axis  101  vertically downwards against the action of the restoring spring  63  results in the two locking members  72 ,  73  being pushed towards each other in the guide channels  87  along a second displacement axis  102  aligned perpendicularly to the first displacement axis  101 , so that the locking members  72 ,  73  assume a distance from the positive locking elements  55 ,  56  and  57 , respectively, and release these. The locking of the push bar  36  is thereby released. The user can then move the push bar  36 . 
         [0068]    Therefore, by actuating the actuating member  65 , the locking members  72 ,  73  can be displaced from their locking position in which they form a positive lock with the positive locking elements  55 ,  56  and  57 , respectively, against the action of the restoring spring  63  into a release position in which they release the positive locking elements  55 ,  56  and  57 , respectively. 
         [0069]    The locking members  72 ,  73  are acted upon by the restoring spring  63  with a spring force, under the action of which they automatically adopt a position on the legs  37 ,  38  of the push bar  36 . When the push bar  36  is moved from its parking position to its operating position, the locking members  72 ,  73  slide along the legs  37 ,  38  until they meet the first positive locking elements  55 ,  56  and under the action of the restoring spring  63  automatically form a positive lock with the first positive locking elements  55 ,  56 , so that the push bar  36  is locked in its operating position. When the push bar  36  is moved from its operating position to its parking position, the locking members  72 ,  73  slide along the legs  37 ,  38  until they meet the second positive locking elements  57  and under the action of the restoring spring  63  automatically form a positive lock with the second positive locking elements  57 , so that the push bar  36  is locked in its parking position. The push bar is therefore automatically locked in the parking position and in the operating position by means of the locking device  60  once the push bar  36  has reached the respective position. To release the locking, the actuating member  65  has to be actuated by the user. 
         [0070]    As mentioned above, the locking unit consisting of the actuating member  65 , the two coupling members  69 ,  70 , the two locking members  72 ,  73  and the film hinges  81 ,  82 ,  84 ,  85  is configured in the form of a one-piece plastic molded part and fauns a prefabricated constructional unit. This can be easily installed on the housing  14  during assembly of the high-pressure cleaning appliance  10 . To do so, the restoring spring  63  is fitted on the spring holder  95 , and a locking member  72 ,  73  is inserted into each of the guide channels  87  of the two half-shells  41 ,  42 . When the two half-shells  41 ,  42  are fitted together, the guide section  92  of the actuating ram  67  adopts a position in the joint guide channel  90  of the two half-shells  41 ,  42 , and the restoring spring  63  adopts a position in the spring receptacle formed by the two half-shells  41 ,  42 . The two half-shells  41 ,  42  can then be screwed together. In a following assembly step, the push bar  36  with its two legs  37 ,  38 , on each of which a second positive locking element  57  is already fixed, can be inserted into the guide channels  50 , so that the free ends of the legs  37 ,  38  project downwards out of the guide channels  50 . The first positive locking elements  55 ,  56  can then be fixed to the free ends of the legs  37 ,  38 . In a following assembly step, the cover parts  47 ,  48  can be screwed to the outer sides of the half-shells  41  and  42 , respectively, which face away from each other. It is therefore relatively easy to assemble the high-pressure cleaning appliance  10 , and the risk of assembly errors is low.