| Alfred Kaercher GmbH & Co. KG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120124760 | EXCHANGEABLE SWEEPING BRUSH DEVICE AND SWEEPER HAVING SUCH A SWEEPING BRUSH DEVICE - An exchangeable sweeping brush device for a carrier vehicle is provided. The device has at least one sweeping brush which is rotationally drivable about an almost vertically oriented axis of rotation of the brush and is held on a supporting frame, the supporting frame being detachably connectable to a supporting fork of the carrier vehicle, which is pivotable about a first horizontal pivot axis oriented transversely to the longitudinal axis of the vehicle. The supporting frame comprises a first supporting assembly on which the at least one sweeping brush is rotatably mounted, and a second supporting assembly which is detachably connectable to the supporting fork, the first supporting assembly being connected to the second supporting assembly for pivotal movement about a second horizontal pivot axis and being detachably connectable to the carrier vehicle by at least one tension member. A sweeper having such a sweeping brush device is also proposed. | 05-24-2012 |
| 20120090640 | METHOD FOR CLEANING TWO FILTERS OF A SUCTION DEVICE FOR CLEANING PURPOSES AND SUCTION DEVICE FOR PERFORMING THE METHOD - A method for cleaning first and second filters of a suction device for cleaning purposes is provided. The suction device has a dirt collection container with a suction inlet. The dirt collection container is subjected to negative pressure via first and second suction lines, respectively, following the first and second filters. First and second closing valves close first and second external air inlets, respectively, into the first and second suction lines. For cleaning the filters, the closing valves are opened, subjecting the filters to external air on the clean space side. The dirt collection container is subjected to negative pressure via the first suction line and first filter by a first suction unit and via the second suction line and second filter by a second suction unit. The suction lines are sealed off relative to each other on the clean space side at least during the cleaning of the filters. | 04-19-2012 |
| 20120090130 | SUCTION CLEANING APPARATUS - A suction cleaning apparatus comprising a dirt collection container which has a suction inlet and is fluidly connected to at least one suction unit via at least one filter and at least one suction channel is provided. The suction cleaning apparatus further has at least one external air inlet which opens out into the suction channel downstream of the at least one filter and which is selectively closable and openable by means of a closing body. In order to reduce the installation space of the closing body required for proper filter cleaning, the suction channel has an external air inlet wall with at least one external air inlet. The closing body, sliding along the outer side of the external air inlet wall, is reciprocatingly movable between a closed position closing the at least one external air inlet and an open position opening the at least one external air inlet. | 04-19-2012 |
| 20120084930 | METHOD FOR OPERATING A CLEANING DEVICE AS WELL AS CLEANING DEVICE AND CLEANING TOOL FOR CARRYING OUT THE METHOD - The invention relates to a method for operating a cleaning device with a drive motor which drives at least one cleaning tool. In order to develop the method further in such a manner that the degree of wear of the cleaning tool can be determined in a simple manner even when the cleaning tool is replaced, it is suggested in accordance with the invention that a wear value, which corresponds to the degree of wear of the cleaning tool present at the time the wear value is stored, be stored in a memory element of the cleaning tool and that this wear value be repeatedly updated. In addition, a cleaning device and a cleaning tool for carrying out the method are suggested. | 04-12-2012 |
| 20120060863 | METHOD AND APPARATUS FOR WASHING A VEHICLE - The invention relates to a method for washing a vehicle at a vehicle wash facility. At least one wash tool is moved along the vehicle as a function of the contour of the vehicle. In order for effective cleaning of the vehicle to be achieved even if the latter has a complicated contour, the invention proposes that at least one wash tool be moved along the vehicle during a reference run, the movement of the wash tool being controlled manually along at least a partial area of the vehicle, and that the contour of at least the vehicle area in which the movement of the wash tool is controlled manually be stored in the form of contour data on a storage medium, and that the stored contour data be used in a subsequent washing operation in order to control the same vehicle wash facility or a vehicle wash facility of identical construction. Furthermore, a vehicle wash facility is proposed for carrying out the method. | 03-15-2012 |
| 20120060319 | AUTOMOTIVE SWEEPER - The invention relates to an automotive sweeper with wheels for traveling along a ground surface and with at least one sweeping brush rotatingly drivable for sweeping the ground surface and with a dirt container adapted to be acted upon with a vacuum by a suction unit via a suction conduit and connected to a suction port via an intake line for the purpose of receiving sweepings. In order to develop the sweeper further in such a manner that it achieves an improved cleaning result with as little use of energy as possible it is suggested in accordance with the invention that the suction conduit be integrated into the dirt container at least in sections, wherein the outlet of the intake line opening into the dirt container is arranged next to at least one inlet area of the suction conduit. | 03-15-2012 |
| 20120034112 | MOTOR PUMP UNIT - A motor pump unit for a high-pressure cleaning apparatus has an electric motor and a pump. The electric motor has a motor housing that is surrounded by a cooling housing with an annular space having an annular space inlet and an annular space outlet formed therebetween. The pump has a suction inlet connected to the annular space outlet and a pressure outlet. The liquid to be transported by the pump can be supplied to the annular space inlet. The cooling housing, on its inside, comprises at least one flow guide rib for guiding the liquid within the annular space. In order to ensure that no liquid can leak out of the annular space even in the long term, the at least one flow guide rib is spaced-apart from the motor housing. | 02-09-2012 |
| 20120034111 | Motor pump unit - A motor pump unit for a high-pressure cleaning apparatus has an electric motor and a pump. The electric motor has a motor housing that is surrounded by a cooling housing with an annular space having an annular space inlet and an annular space outlet formed therebetween. The pump has a suction inlet connected to the annular space outlet and a pressure outlet. The liquid to be transported by the pump can be supplied to the annular space inlet. In order to improve the motor pump unit such that the motor housing can have a small wall thickness and can still be cooled effectively over a large surface area, the motor housing is configured as a one-piece deep-drawn part which in a front shell area contacts stator laminations of the electric motor and in a rear shell area is arranged at a distance from rear coil heads of the stator and in the rear shell area has stiffness-enhancing depressions, wherein the front and the rear shell areas are surrounded by the annular space. | 02-09-2012 |
| 20110274570 | HIGH-PRESSURE CLEANING DEVICE - A high-pressure cleaning device has a housing which surrounds a motor pump unit which comprises a liquid-cooled electric motor and a pump. The pump has a suction inlet and a pressure outlet. Liquid, which is subsequently subjected to pressure by the pump, can be supplied to the electric motor for the purpose of cooling it. The electric motor is configured as a fan-less asynchronous motor and the motor pump unit is mounted via vibration-damping buffer elements. | 11-10-2011 |
| 20110126367 | Mobile sweeper - The invention relates to a mobile sweeper comprising a housing, in which a sweeping roller driven by an electric motor is mounted for rotation, and a sweepings container for receiving sweepings, wherein there are mounted on the housing adjacent to the sweeping roller two front supporting wheels and at a distance from these at least one rear supporting wheel, each for rotation about an axis of rotation. In order to further develop the sweeper such that with the occurrence of surface unevennesses, there is no risk of the sweeping roller becoming blocked or of the sweeper tilting, it is proposed in accordance with the invention that the axis of rotation of a first front supporting wheel be arranged coaxially with the axis of rotation of the sweeping roller and, in relation to the main direction of movement of the sweeper, offset from the axis of rotation of the second front supporting wheel. | 06-02-2011 |
| 20110088201 | Vacuum cleaner - The invention relates to a vacuum cleaner comprising a lower housing part, on which wheels are mounted for moving the vacuum cleaner along a floor surface, and which forms a dirt collection container with a suction inlet to which a suction hose is connectable, and an upper housing part which is mountable on the lower housing part and accommodates an electrically drivable suction unit, and an electric supply cable for connecting the suction unit to an electrical voltage source. In order to develop the vacuum cleaner so that it is easier to handle, and the supply cable and the suction hose can be held in a simple way for storage on the vacuum cleaner and removed from the vacuum cleaner for use, it is proposed, in accordance with the invention, that the vacuum cleaner have a cable receptacle for storing the supply cable and a hose mount for storing the suction hose, the cable receptacle surrounding the upper housing part on the outside in the circumferential direction, and the hose mount being arranged below the cable receptacle. | 04-21-2011 |
| 20110023918 | System for storing and dispensing liquid cleaning additive for a high-pressure cleaning appliance - A system for storing and dispensing a liquid cleaning additive for a high-pressure cleaning appliance has a device for storing the cleaning additive and a device for dispensing the cleaning additive in a controlled manner. In order to develop the system such that it is easier to handle, it is proposed that the storage device has an intermediate tank, which is fixedly held on the high-pressure cleaning appliance, and an independently handlable refill container for filling the intermediate tank, it being possible for liquid cleaning additive to be withdrawn in a controlled manner from said intermediate tank by means of the dispensing device, it being possible for the refill container to be secured on the high-pressure cleaning appliance and to be flow-connected to the intermediate tank, cleaning additive flowing automatically out of the refill container into the intermediate tank upon withdrawal of cleaning additive from the intermediate tank, in order to maintain a predetermined liquid level in the intermediate tank. A refill container for such a system and also a high-pressure cleaning appliance having such a system are also proposed. | 02-03-2011 |
| 20110005027 | Floor cleaning appliance - The invention relates to a floor cleaning appliance comprising a housing, on the underside of which is arranged at least one drivable cleaning tool for removing dirt from a surface to be cleaned, and further comprising a suction unit for vacuuming-off the dirt and a dirt container for receiving the vacuumed-off dirt. In order to so develop such a floor cleaning appliance that it is easier to service, it is proposed in accordance with the invention that the housing comprise a dirt container receptacle in which the dirt container is releasably positionable, and, in addition, at least one functional device receptacle for at least one functional device, the at least one functional device or a cover of the at least one functional device being freely accessible after removal of the dirt container from the dirt container receptacle. | 01-13-2011 |
| 20100299853 | Cleaning apparatus - The invention relates to a cleaning apparatus, in particular a high-pressure cleaning apparatus, on which at least one fastening device for fastening the cleaning apparatus to a carrier is disposed, with the at least one fastening device comprising at least one tensioning section on which a tensile force, which is directed at the carrier, acts when the cleaning apparatus is fastened to the carrier by means of a tensioning element, and also comprising at least one retaining section, which is connected to the at least one tensioning section, for retaining the at least one fastening device on the cleaning apparatus. In order to develop a cleaning apparatus of this type such that the risk of damage to the cleaning apparatus by an excessive tensile force can be reduced, the invention proposes that the at least one fastening device has at least one support section in order to be supported on the cleaning apparatus, said support section being connected to the at least one tensioning section by means of at least one connecting section, with the at least one connecting section yielding if the tensile force exceeds a maximum permissible tensile force. | 12-02-2010 |
| 20100275395 | Cleaning machine - The invention relates to a cleaning machine with at least one cleaning tool which is adapted to be driven in rotation by way of a drive shaft that is rotatably mounted on a carrier, the drive shaft carrying a torque-transmission member which engages, by way of protrusions, in drive recesses of the cleaning tool. In order for it to be possible for the cleaning machine to be manufactured more cost-effectively, it is proposed according to the invention that the drive shaft is made from metal, and that the torque-transmission member is formed, as a plastics-material molding, onto the drive shaft. | 11-04-2010 |
| 20100263141 | Cleaning tool and cleaning device having such a cleaning tool - The invention relates to a cleaning tool for a cleaning device, the cleaning tool being subject to wear during operation. In order to make it easier to identify wear, the invention proposes that the cleaning tool comprise a sensor device with a sensor element which has a physical characteristic variable which changes as a function of the degree of wear of the cleaning tool. The invention also proposes a cleaning device having such a cleaning tool, the cleaning device having a detector device which is coupled to the sensor device for the purpose of sensing the change in the physical characteristic variable of the sensor element, and having an indicator device which is connected to the detector device. | 10-21-2010 |
| 20100218323 | Floor-cleaning appliance - The invention relates to a floor-cleaning appliance having a housing, on the underside of which is disposed at least one floor-cleaning tool adapted to be driven in rotation or oscillation, wherein the floor-cleaning appliance, for the purpose of cleaning a floor surface, can be guided manually by the user in an operating direction along the floor surface. In order to develop the floor-cleaning appliance such that it can be transported in a simple manner, it is proposed according to the invention that the floor-cleaning appliance has transporting wheels which are adapted to be rotatably fixed by the user, for the purpose of transporting the floor-cleaning appliance, on wheel bearings disposed on the side of the housing. | 09-02-2010 |
| 20100180397 | Dirt-collecting device for a floor-cleaning machine, and floor-cleaning machine having such a dirt-collecting device - The invention relates to a dirt-collecting device for a floor-cleaning machine, for picking up a liquid from a floor surface which is to be cleaned, having a carrier and at least one wiping member for wiping the floor surface, the carrier and the at least one wiping member bounding a suction channel which opens out into a suction mouth and of which the free cross-sectional area, through which a suction stream can pass, decreases, at least in one channel portion, in a direction away from the suction mouth. In order to produce such a dirt-collecting device in a more cost-effective manner, it is proposed according to the invention that the suction channel has disposed in it at least one channel-narrowing member, which is produced separately from the carrier. The invention also relates to a floor-cleaning machine having such a dirt-collecting device. | 07-22-2010 |
| 20100176590 | Plug-in part for a plug connector arrangement - A plug-in part for a plug connector arrangement is provided. The plug-in part being in the form of a piece of tubing and having a sealing portion, comprising a sealing element enclosing the piece of tubing in a circumferential direction, and a locking portion with at least one undercut, and it being possible for the plug-in part to be plugged into the receptacle of a coupling part of the plug connector arrangement in order to produce a fluid-tight connection, and for at least one locking element of the coupling part to engage behind the plug-in part in the region of the undercut. In order to develop the plug-in part so as to reduce the risk of the sealing element being adversely affected, the undercut is formed by a protrusion which projects from the outside of the piece of tubing and extends circumferentially merely over a sub-region of the piece of tubing. | 07-15-2010 |
| 20100132150 | Floor cleaning appliance - A floor cleaning appliance has a brush head in which a brush roller is rotatably mounted and which has at least one suction nozzle which is disposed next to the brush roller. Further, the floor cleaning appliance has a shank which is mounted on the brush head in a pivotable manner and on which a suction unit is disposed, as is a cleaning liquid container for cleaning liquid which can be applied to the floor surface to be cleaned, and a dirty liquid container for accommodating dirty liquid which is sucked up from the floor surface by means of the suction unit, the cleaning liquid container and the dirty liquid container together forming a container assembly which is adapted to be releasably connected to the shank. In order to develop the floor cleaning appliance in such a way that it is easier to handle, it is proposed that the cleaning liquid container is adapted to be releasably connected to the dirty liquid container. | 06-03-2010 |
| 20100078050 | High-pressure cleaning device - The invention relates to a high-pressure cleaning device having a housing in which a pump and a drive motor are disposed, it being possible for pressurized liquid to be delivered by the pump via a high-pressure hose and it being possible for the high-pressure hose to be wound onto a hose drum which is mounted within the housing such that it can rotate about a rotation axis, and for said high-pressure hose to be routed out of the housing at the rear. In order to develop the high-pressure cleaning device in such a way that it has a shorter structure, the invention proposes aligning the rotation axis of the hose drum parallel to the horizontal axis of the housing. | 04-01-2010 |
| 20100075579 | Device for comminuting dry ice granules, and dry ice dispensing arrangement having such a device - The invention relates to a device for comminuting dry ice granules, comprising a housing having a flow channel for dry ice granules which can be applied, by means of compressed gas, to a surface to be cleaned, and also comprising a first comminution member for comminuting the dry ice granules which are to be dispensed. In order to provide a device of this kind with which different degrees of comminution of dry ice granules can be achieved in a simple manner, it is proposed according to the invention that the device has at least one second comminution member which can be disposed in the housing in a position in which a total degree of comminution, which is greater than the individual degree of comminution which can be achieved solely by the first comminution member, can be achieved in combination with the first comminution member. A dry ice dispensing arrangement for dispensing a mixture of compressed gas and dry ice granules is also proposed, having a device of the above kind. | 03-25-2010 |
| 20100059603 | High-pressure cleaning appliance - The invention relates to a high-pressure cleaning appliance with a high-pressure pump, comprising at least one pump chamber which is connected to a suction line and a pressure line. The pressure line is in flow connection with the suction line via a return flow line, and a relief valve with a through-channel extending from a valve inlet to a first valve outlet is arranged in the return flow line. A valve element which in a closed position bears against a valve seat is held for movement in the through-channel. At least one outlet channel, which opens into a second valve outlet, branches off from the through-channel. To design the high-pressure cleaning appliance so that it is less susceptible to failure, it is proposed that in the direction away from the valve seat, at a spacing from the at least one outlet channel, the valve element be surrounded by a sealing ring which seals off an inlet area of the through-channel adjacent to the valve inlet from an outlet area of the through-channel adjacent to the first valve outlet. | 03-11-2010 |
| 20100047091 | Motor-pump unit - The invention relates to a motor-pump unit having an electric motor and a pump, the pump having a suction inlet and a pressure outlet, and the electric motor comprising a motor housing which is enclosed by a cooling housing, whereby a cavity is formed, it being possible for cooling liquid to be fed to the cavity via a cooling-housing inflow and to be conducted away therefrom via a cooling-housing outflow, and the cooling-housing outflow being in flow connection with the suction inlet. In order to develop the motor-pump unit such that, if required, a flow connection can easily be made from the cooling-housing inflow to the suction inlet via the cavity and the cooling-housing outflow, it is proposed that the motor-pump unit has a connecting device which is disposed laterally alongside the pump and has a first connection, which is connected in a releasable manner to the cooling-housing inflow via a first flow channel, and a second connection, which is connected in a releasable manner to the cooling-housing outflow via a second flow channel and is connected to the suction inlet. | 02-25-2010 |
| 20100012869 | Dispensing arrangement for a water-dispensing appliance and water-dispensing appliance with a dispensing arrangement - The invention relates to a dispensing arrangement for a water-dispensing appliance which is designed in particular for dispensing drinking water, having a valve device which has a valve body that can be positioned with sealing action against a valve seat, and having a dispensing body which has a first inlet and a second inlet, flow-connected to the first inlet, for the connection of water-feed lines and also has an outlet which is intended for dispensing water and is in flow connection with the first inlet and the second inlet. The flow connection between the two inlets and the outlet takes place via a channel portion which carries at an end the valve seat for the valve body, the valve seat forming a flow-deflecting element in order to change the flow direction of the water flowing from the first inlet and/or from the second inlet to the water outlet by at least 90°. The invention also relates to a water-dispensing appliance with a dispensing arrangement of this kind. | 01-21-2010 |
| 20090321335 | Water-dispensing appliance and drinks-dispensing arrangement with a water-dispensing appliance - A water-dispensing appliance is provided, in particular for dispensing drinking water, comprising a water inlet which can be connected to a water-supply device, also comprising a dispensing device with a water outlet, via which water can be dispensed from the appliance, the dispensing device being connected to the water inlet via a main line which has a downstream portion and an upstream portion, and also comprising a water heater. The water-dispensing appliance has a return line, of which the start is line-connected to the downstream portion of the main line and the end is connected to the upstream portion of the main line, and the appliance also has a delivery unit in order for water heated up by means of the water heater to be delivered through the main line from the upstream portion to the downstream portion. | 12-31-2009 |
| 20090205499 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method - The invention relates to a method for cleaning the filters of a vacuum cleaner comprising a dirt collecting container, which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one suction extraction line, and comprising at least one external air inlet which opens into the suction extraction line downstream of the filter and can be closed by a closing valve, wherein the closing valve has a movable valve body which is acted upon by a closing spring with a closing force, which valve body lies against a valve seat in a closed position and is at a distance from the valve seat in an open position, wherein, in order to clean the filter, at least one closing valve is opened and the side of the filter that is oriented away from the dirt collecting container is impinged upon by external air. To develop the method in such a way that all the filters present can be flowed through by suction air during suction operation, but for the user there does not have to be any noticeable interruption in suction operation for filter cleaning, it is proposed according to the invention that the valve body is acted upon, irrespective of its position, by the closing force of the closing spring and, in a position at a distance from the valve seat, additionally acted upon by the repulsion force of a resilient stop element. | 08-20-2009 |
| 20090205491 | Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method - The invention relates to a method for cleaning the filters of a vacuum cleaner comprising a dirt collecting container, which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one suction extraction line, and comprising at least one external air inlet which opens into the suction extraction line downstream of the filter and can be closed by means of a closing valve, wherein the closing valve has a movable valve body which is acted upon by a closing spring with a closing force and, in the closed position, additionally by a magnetic holder with a magnetic holding force, wherein, in order to clean the filter, at least one closing valve is opened and the side of the filter that is oriented away from the dirt collecting container is impinged upon by external air. To develop the method in such a way that it makes particularly effective cleaning of the filter possible, it is proposed according to the invention that, after the suction unit is switched off, a closing valve is opened at least once and closed again and the side of the filter that is oriented away from the dirt collecting container is impinged upon at least once by external air. A vacuum cleaner for carrying out the method is also proposed. | 08-20-2009 |
| 20090205159 | Vacuum cleaner - The invention relates to a vacuum cleaner with a dirt collection tank which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one extraction line, and with at least one external air inlet which opens into the extraction line downstream of the at least one filter and can be closed by means of at least one closing valve, wherein the at least one closing valve has a valve member which can be moved back and forth between a closing position and an open position, wherein it is acted upon permanently by a closing spring with a closing force and in the closing position, in addition, by a magnetic holding device with a magnetic holding force. In order to develop the vacuum cleaner further in such a manner that it makes a particularly effective cleaning of the at least one filter possible, it is suggested in accordance with the invention that the magnetic holding device comprise an electromagnet with a magnetic core and a coil which can be acted upon with current for the purpose of closing the closing valve, wherein at least one electrical component, which takes up at least some of the energy stored in the coil when the current acting on the coil ceases, is connected in parallel to the coil. | 08-20-2009 |
| 20090205158 | Vacuum cleaner - The invention relates to a vacuum cleaner with a dirt collection tank which has a suction inlet and is in flow connection with at least one suction unit via at least one filter and at least one extraction line, and with at least one external air inlet which opens into the extraction line downstream of the filter and can be closed by means of at least one closing valve, wherein the closing valve has a movable valve member which is acted upon by a spring-elastic restoring device with a closing force and in the closing position, in addition, by a magnetic holding device with a magnetic holding force. In order to develop the vacuum cleaner further in such a manner that it makes a particularly effective cleaning of the filter possible, it is suggested in accordance with the invention that the magnetic holding device have an electromagnet which can be acted upon with an exciting current for the purpose of closing the closing valve and that the valve member can be moved continuously back into the closing position via the open position, proceeding from the closing position, when the exciting current is interrupted, wherein the switch-off time of the exciting current is adapted to the movement time of the valve member. | 08-20-2009 |
| 20090193612 | Vacuum Cleaner - The invention relates to a vacuum cleaner with an electronic control unit and a dirt collecting container, which has a suction inlet and is in flow connection with a suction unit via a suction extraction line, the suction unit being connected to at least one air outlet via at least one air duct. To develop the vacuum cleaner in such a way that, in a structurally simple manner, the production of noise can be kept low and heat-sensitive components can be protected from being damaged, it is proposed according to the invention that at least one air duct is sealed off by means of a sound-insulating sealing mat which is produced from a flame-retardant material and covers the electrical control unit. | 08-06-2009 |
| 20090050716 | High-pressure spray gun - The invention relates to a high-pressure spray gun for a high-pressure cleaning appliance, comprising a housing having arranged therein a valve with an inlet channel and an outlet channel and a closing body, which is adapted to rest in a sealing manner on a sealing surface arranged between the inlet channel and the outlet channel, and which interacts with a hand lever, an insert nipple being insertable into the inlet channel and fixable in an axially immovable manner for connection of a liquid supply line. To further develop the high-pressure spray gun in such a way that a liquid supply line can be connected to and separated from the valve in a simple way, it is proposed in accordance with the invention that the high-pressure spray gun comprise an immovable securing clip with two securing parts, which are insertable into diametrically opposed lateral openings of the inlet channel in order to engage behind the insert nipple, and which are spreadable apart in a spring-elastic manner by an actuating element which is displaceably arranged in the housing. | 02-26-2009 |
| 20090008928 | Plug-in part for a plug connector arrangement - The invention relates to a plug-in part for a plug connector arrangement, the plug-in part being in the form of a piece of tubing and having a sealing portion, comprising a sealing element enclosing the piece of tubing in a circumferential direction, and a locking portion with at least one undercut, and it being possible for the plug-in part to be plugged into the receptacle of a coupling part of the plug connector arrangement in order to produce a fluid-tight connection, and for at least one locking element of the coupling part to engage behind the plug-in part in the region of the undercut. In order to develop the plug-in part so as to reduce the risk of the sealing element being adversely affected, it is proposed according to the invention that the undercut is formed by a protrusion which projects from the outside of the piece of tubing and extends circumferentially merely over a sub-region of the piece of tubing. | 01-08-2009 |
| 20090008927 | Coupling part for a plug connector arrangement - The invention relates to a coupling part for a plug connector arrangement, the coupling part having a coupling body comprising a receptacle into which a plug-in part can be plugged, in the direction of a longitudinal axis of the receptacle, in order to produce a fluid-tight connection, and the coupling part having two spaced-apart locking elements which, in a locking position, penetrate laterally, opposite one another, into the receptacle in order to engage behind the plug-in part and which can be moved into a release position in order to release the plug-in part. In order to develop the coupling part so that it is easier to handle, it is proposed according to the invention that the coupling part has an actuating element which is adapted to be moved relative to the coupling body, it being possible for the locking elements, by virtue of the actuating element being moved, to be moved out of the locking position into the release position, in which they are spaced apart from one another to a greater extent than in the locking position. | 01-08-2009 |
| 20080224657 | Rechargeable battery - The invention relates to a rechargeable battery with a battery housing having a rear wall with a recess which extends as far as an end wall of the battery housing and has a base side and narrow sides facing each other, the base side continuing via a step into the outer side of the rear wall, and a contact assembly which is covered by a cover extending from the step being positioned at the step. In order to further develop the battery so that when the battery is connected to an electrical appliance the contact assembly is protected against splash water, it is proposed, in accordance with the invention, that the cover form a contact housing which completely surrounds the contact assembly in circumferential direction and has on its side facing away from the step an insertion opening surrounded by a circumferential rim of the contact housing, which forms a sealing surface. | 09-18-2008 |
| 20080216259 | Mobile floor-cleaning machine - The invention relates to a mobile floor-cleaning machine having a rotationally drivable, disk-like cleaning tool which is detachably held on a tool holder, the tool holder being connected to a drive shaft in a rotationally fixed manner. In order to develop the floor-cleaning machine in such a way that the cleaning tool can be easily replaced, the invention proposes that said cleaning tool is adapted to be detachably latched to the tool holder and to be disconnected from the tool holder in the axial direction by means of an unlatching mechanism which is adapted to be operated by the user. | 09-11-2008 |
