ES2330698B1 - STEAM IRON. - Google Patents

Abstract

Steam iron.

Steam iron (1) with cleaning system the steam chamber (6) that has a valve anti-drip (26) operable according to the temperature of the steam chamber to open and close the inlet port (22) to the pre-camera (16) and, a control rod movable (28), which goes through the pre-camera through of a pre-chamber passage opening hermetically sealed (46) arranged in a wall (4) of the water tank (2), to adjust the amount of water when it flows through the port outlet (24) to the steam chamber (6) or to close the passage of water when in a first closed position (P1b). The rod (28) has a baipás section (30) which, when it is up to of the opening (46), allows a flow of water from the tank (2) to the steam chamber through the pre-chamber (16) regardless of whether the anti-drip valve (26) It is open or not.

Description

Steam iron.

Technical Field of the Invention

The present invention relates to plates of steam where water supplied by a water tank is vaporized in a steam chamber and where the flow of water from the tank to the Steam chamber is controlled by a mobile control rod.

       \ vskip1.000000 \ baselineskip
    

State of the art

Conventional steam irons comprise an anti-drip device that stops the entrance of water to vaporize in the steam chamber when the steam chamber does not it is hot enough, in order to avoid leaks of water on the clothes being ironed. A device known anti-drip that fulfills this function consists of a bimetallic thermoelement element subjected to heating of the steam chamber and that from a certain temperature and higher temperatures opens a water passage from the tank of water when operating an anti-drip valve giving way of water from the water tank / tank to the steam chamber by an entrance hole to the steam chamber that is regulated by a mobile control rod. At lower temperatures than the certain temperature mentioned above, the thermoelement bimetallic activates the anti-drip valve that closes the passage of water from the water tank and stop water entering the steam chamber although the steam chamber inlet hole is not closed by the mobile control rod.

These known plates further comprise self-cleaning means to clean the inside of The steam chamber. This is necessary because the lime contained in the water used for ironing, over time and use, leaves gradually embedding in the inner walls of the chamber of steam. This causes the steam chamber to clog in the long run. shortening the life of the iron. Normally the self-cleaning is achieved by introducing great amount of water inside the steam chamber at low temperature so that the steam chamber cannot evaporate it in the moment of being introduced and that in a following increase of steam chamber temperature a sudden occur evaporation that starts and drags outside through the holes of steam chamber exit the lime embedded inside the steam chamber

In patent application EP_1554424_A1 the iron has a mode of operation in which the control rod mobile is placed in self-cleaning position. The self-cleaning means consist of allowing the passage of water through the anti-drip valve to the steam chamber through a hole in the steam chamber that it is opened by the rod even when the steam chamber is not hot enough This is achieved with a rod mobile control comprising means to open or keep open the anti-drip valve when placed in position of self-cleaning. That is, it works when the steam chamber is cold or hot. The means to open or keep the anti-drip valve described described open the patent can be by a mechanical drive in which a lever connected between the rod and the valve opens the valve anti-drip leaving the water passage open from the water tank to the steam chamber through the hole in the chamber steam.

       \ vskip1.000000 \ baselineskip
    

Description of the invention

The invention is therefore based on the task, respectively the technical problem, of creating a new plate to steam with a water supply system to the steam chamber for cleaning the steam chamber simple, effective, safe and reliable.

This task will be solved by means of an iron steam, with the characteristics of claim 1. This iron Steam includes: a water tank that is hydraulically connectable with a steam chamber through a pre-camera, the pre-camera taking an inlet port communicating with the water tank and a port output communicating with the steam chamber, an anti valve drip to open and close the inlet port, a rod of movable control, extending into the pre-camera through a passage opening of hermetically sealed pre-chamber, to adjust the amount of water flowing from the pre-chamber to through the outlet port to the steam chamber when the rod control is in a first position, where the control rod movable has a rod baip section which, when the rod is in a second position, opens the passage opening of hermetically sealed pre-chamber and allows a water flow from the water tank to the pre-camera and pre-camera to through the port of exit to the steam chamber.

By pre-camera in the sense of the invention is to be understood as an enclosure that encloses a circuit of water with a water inlet flowing from the water tank by an entrance port and / or by an opening of passage of pre-chamber and a water outlet flowing through a port of exit to the steam chamber.

The movable control rod is usually a thin bar that extends in a substantially straight axis. The rod has a section perpendicular to the circular axis or polygonal, regular or not, of constant section along at least  part of its length and consists only of a solid piece or several solid pieces, articulated or not with each other and extending inside the pre-camera through the opening of hermetically sealed pre-chamber passage, for adjust the amount of water flowing from the pre-camera through the exit port to the steam chamber when the control rod is in the first position. And by section baipás rod is understood in the sense of the invention any kind of variation in the section of the rod that opens the pre-chamber passage opening hermetically sealed to the passage of water from the water tank to the pre-camera

To achieve the necessary tightness of the hermetically sealed pre-chamber passage opening sealed in the first position, an element of Hermeticism described in depth below.

By water tank, you should understand not only a container to contain water, but a container to contain any type of evaporable liquid medium appropriate for the steam ironing, including appropriate additives provided in this means, medium. The water tank can have one or several chambers or also cover one or more of a separate tank units containers, which can present the same or different volume.

The anti-drip valve opens and closes the passage of water from the water tank to the pre-chamber by the input port.

This solution allows the flow of water to the steam chamber possible regardless of the valve anti-drip whether or not open to the passage of water in a second position of the movable control rod. This is great importance in the steam chamber cleaning process since in this process it is necessary to introduce a volume of water into the steam chamber to be evaporated at once when the temperature. An iron with a movable control rod that it has a rod dip section which, when the rod is in a second position, opens the passage opening of hermetically sealed pre-chamber allowing a water flow from the water tank to the pre-camera and pre-camera to through the outlet port to the steam chamber independently of whether the anti-drip valve is open or closed, it is a water supply system to the steam chamber for the steam chamber cleaning easier to manufacture than that of the current steam irons of the state of the art since It requires fewer parts in its construction and reduces manufacturing costs

It is a more effective system than that of state-of-the-art plates since being simpler in construction, the ability to achieve the effect that is desired or expected without failures. Also, it is safer than the  water supply system to the steam chamber for the steam chamber cleaning of the plates of the state of the technique since it only requires the movement of the rod movable control to open the water passage without having to operate other elements of the steam iron that could fail. Is a definitely more reliable iron since with a system of water supply to the steam chamber for cleaning the steam chamber like the one of the invention offers one more result sure.

In a preferred embodiment, the rod of movable control is movable by a drive element between The two positions. The drive element can be mechanical or electromechanical and normally intentionally operated by the user at the time you want to introduce water into the chamber of steam, want to regulate the flow of water in the chamber of steam also closing the water inlet or want position the rod in the second position where the hermetically sealed pre-chamber passage opening sealed in a comfortable way for the user. The element of drive has drive means to return the rod automatically movable control from the second position to the first position. This is useful for the user to open the hermetically sealed pre-chamber passage opening sealed letting the water flow through it to the pre-camera and from the pre-camera to the steam chamber consciously introducing the amount of water convenient inside the steam chamber without having to be aware that the control rod is in the second position being this unusual for ironing returning it to a first position suitable for ironing.

In another embodiment, as already mentioned, opening pre-chamber passage tightly sealed is provided with an annular gasket making contact with the outer surface of the movable control rod in the first position. This joint can be circular or polygonal complementary to the section of the movable control rod in the first position so that it produces a tight seal.

And more preferably, the ring seal is a clip type gasket which is mountable at the passage opening of hermetically sealed pre-chamber of the pre-camera in a clip binding mode, giving ease of assembly in the manufacturing process.

In an embodiment of the invention, the section rod dipstick rod is a reduced portion of the rod of movable control. That is, the perpendicular section of the rod it is reduced in the area of the baipás by its external or internal part lowering it of material so that when it is located in the second position, the tightness of the joint stop acting because the gasket stops making contact with the outer surface of the rod and let the water pass to the pre-chamber.

In an embodiment of the portion reduced from the baipás, it is by means of a section baipás rod performed as a recess in the movable control rod. Is something similar to a narrow neck on the length of the rod. He narrowing can occur exactly in the center of the rod but it is not necessary since a reduction on one side is sufficient. This is a simple way to perform a baipás.

Another way to achieve this is through a rod baip section which is a channel through the rod movable and therefore internal control on the rod, through which it passes Water to the pre-chamber. In this way, the board annular does not cease to be in contact with the rod surface and this can maintain its invariable outside diameter. Board suffers in this way fewer changes of form and therefore lengthens its lifetime.

In an embodiment of the invention, the Baipás rod section is inside the pre-chamber when the movable control rod is in the first position, and the rod baipás section opens the passage opening of hermetically sealed pre-chamber when the rod movable control is in a second moved up position. This is an embodiment in which the rod reaches a second position by moving it in a movement in the direction of its axis towards the top of the plate, that is, towards the handle of the iron that the user uses to move it about clothes, that is, up. So, at the same time as the the control rod's rods move up, the rod separates from the outlet port of the Pre-camera leaving water passage from the tank water through the opening of pre-chamber passage Hermetically sealed to the steam chamber.

Another different way to get an effect like The one described above is by means of a rod section which is out of the pre-camera when the rod of movable control is in the first position, and the baipás section rod opens the pre-chamber passage opening hermetically sealed when the movable control rod is in one down moved second position. The position of the baipás in the first position of the rod is understood as outside the pre-camera, above it and above the opening Hermetically sealed pre-chamber passage. In this embodiment the rod reaches a second position at move it in a movement in the direction of its axis towards the bottom of the iron, that is, towards the sole of the iron. So, at the same time as the mobile control rod baipás scrolls down and opens the passage opening of pre-chamber tightly closed to the passage of water, the rod approaches the exit port of the Pre-camera leaving water passage from the tank water through the opening of pre-chamber passage Hermetically sealed to the steam chamber. In this case, the rod opens the passage of water through the exit port of the pre-camera, anyway imaginable, when doing pressure on the exit port and cross it, or with a second baipás as described below.

In a way of building the pre-camera opening step hermetically sealed pre-chamber is defined in a pre-chamber upper wall where crosses the movable control rod directly to the Pre-camera without the need for any channel communication from the water tank to the pre-camera facilitating its construction.

And in a more compact way, the pre-camera is defined by a tank wall of water, which has the passage opening of hermetically sealed pre-chamber, and a gasket pre-camera which is connectable in a type mode plug to the wall of the water tank and has the outlet port of the pre-camera That is, the water enclosure is enclosed by a wall of the water tank and the gasket pre-camera that attaches to the tank wall of Water. The opening of the water tank is integrated hermetically sealed pre-chamber step and also the port of entry may be within the enclosure of water circulation That is a very simple way of building It brings the advantage of being easy to assemble.

In the beginning, the board Pre-camera is made of an elastic material that withstands high temperatures This material helps the insertion in the Water tank wall in a plug-in mode.

It is also possible in this way that the valve anti drip is fully formed in the joint pre-camera, if as we have said, it closes the entire water circulation enclosure, from the port of entry to the exit port. One way is by performing the valve in the elastic part of the pre-chamber joint with an axis that extends to the port of entry that at its end comprises a widening that opens and closes the port of entry depending  of the shaft position and a spring that drives the shaft to be always closed. When it is necessary for water to enter the port input will be necessary for the shaft to be pushed to overcome the spring force by a thrust element as described more ahead.

The iron also comprises a cover of the steam chamber that has a hole, and that the pre-camera has an outgoing part which contains the exit port which seals the hole. This is the way easier to connect the outlet port to the steam chamber to introduce the water flowing from the water tank to its interior. The outgoing part of the pre-camera It can be realized as a cylindrical extension towards the cover, which conforms to the shape of the cover surrounding the cover hole. If it is made of an elastic material, this has to withstand the high temperatures at which it is heated the steam chamber cover.

As mentioned above, to overcome the strength of anti-drip valve spring, the iron also includes a pushing element that is for example made as a disk bimetallic in thermal contact with the chamber cover steam to drive the axis of the anti-drip valve depending on the temperature of the steam chamber cover by opening the passage of water through the port of entry to the pre-camera

In a first embodiment of the invention, the movable control rod has a plug part to adjust the amount of water flowing from the pre-chamber to through the outlet port to the steam chamber when the rod Movable control is in a first open position; and the part cap closes the outlet port tightly when the Movable control rod is in a first closed position. The rod plug part can be made as a conical end of the rod that ends at its tip as a thin needle that sits perfectly in a conical seat of the pre-camera output port closing it tightly in the first closed position and that when moving until a first open position, it lets the water pass a little to little to the steam chamber, in more quantity the higher it is the rod The needle serves to guide the rod and facilitate its settlement over the port of departure.

Another way to get the same would be in a second embodiment of the invention where on the other side of the needle, out of the pre-camera again widen the rod in its conical stopper part to settle on a conical shaped on the outside of the exit port of the pre-camera in a first closed position and that at move the rod towards the steam chamber to a first open position, gradually letting the water pass to the camera of steam, in more quantity the more displaced the rod is. In this last embodiment, the rod baipás section of the rod would normally be outside the pre-camera and on it so that in the second position of the movable control rod moving towards below, the needle part of the rod will leave the passage of water to the steam chamber.

It can also be provided in the second embodiment of the invention that the plug part has a baip section plug. This section baipás stopper can allow direct water flow to the steam chamber with the movable control rod in a first open position to let in a stream of water from a Hit the steam chamber and generate more steam.

Or, the bumper stopper section opens the port output when the movable control rod is in the direction moved down second position, so that when water enters from the water tank through the passage opening of hermetically sealed pre-chamber, to the pre-chamber, water enters the steam chamber at through the baipás section plug of the rod although the chamber of steam is cold and the anti-drip valve is closed when not actuated by the bimetallic drive element.

       \ vskip1.000000 \ baselineskip
    

Brief description of the drawings

The figures show:

Fig. 1 a schematic view of a section of a steam iron according to a first embodiment of the invention with the anti-drip valve closed since the chamber of steam is at low temperature and the movable control rod in a first closed position so the water flow from water tank to the steam chamber is closed for the ironing

Fig. 2 a schematic view of a section of a steam iron according to the first embodiment of the invention with the anti-drip valve open since the chamber of steam is at high temperature and the movable control rod in a first closed position, so the water flow from water tank to the steam chamber is closed for the ironing

Fig. 3 a schematic view of a section of a steam iron according to the first embodiment of the invention with the anti-drip valve open since the chamber of steam is at high temperature and the movable control rod in a first open position so the water flow from water tank to the steam chamber is open for the ironing

Fig. 4 a schematic view of a section of a steam iron according to the first embodiment of the invention with the anti-drip valve closed since the chamber of steam is at low temperature and the movable control rod in the moved up second position so the water flow from water tank to steam chamber is open for the steam chamber cleaning although the valve anti-drip is closed;

Fig. 5 a schematic view of a section of a steam iron according to a second embodiment of the invention with the anti-drip valve closed since the chamber of steam is at low temperature and with the control rod movable in a first closed position so the water flow from water tank to steam chamber is closed for the ironing

Fig. 6 a schematic view of a section of a steam iron according to the second embodiment of the invention with the anti-drip valve closed since the chamber of steam is at low temperature, with the movable control rod in the moved down second position so the flow of water from the water tank to the steam chamber is open for steam chamber cleaning although the valve anti-drip is closed;

Fig. 7 a detailed section of a first realization of the baipás rod section as a recess in a second position of the movable control rod going through the annular seal at the opening of the pre-chamber passage tightly closed.

Fig. 8 a section in detail of a second realization of the section baipás rod as a channel through in a second position of the control rod movable through the annular joint at the opening of the passage of tightly closed pre-camera.

Description of examples of preferred embodiments

A view is shown in Figures 1 to 4 schematic of a section of a steam iron 1 according to a First embodiment of the invention. The domestic iron 1 It comprises a handle 5 for the user to handle the iron 1 and under handle 5 and attached to it through the housing of the device, a water tank 2 with liquid to vaporize inside a steam chamber 6 which is heated by a heating element electric 10 of the steam chamber and which in turn heats a ironing sole 14 closing the outside of the chamber of steam and comprising steam holes through which the steam to iron clothes. The steam chamber 6 is closed tightly inside grilled 1 by a cover 8 of the steam chamber 6. On the cover of the steam chamber 6 and in thermal contact with it, an element is arranged thermosensitive bimetallic 50 that varies its shape at the change of steam chamber temperature.

The handle 5 is attached to the iron body by a partially hollow tower of the iron housing and to this housing is attached the water tank 2. Under the water tank 2 and attached to it, is the steam chamber 6 to which it is attached plate sole 14. Device housing extends laterally until leaving only the sole area of the sole iron so that all the components are locked in it. Water tank 2 is defined inside the housing and at least some wall of tank 2 may be part of the housing exterior, this wall being semi-transparent so that the user I can see the liquid content.

Water dosing from the water tank 2 inside the steam chamber 6 in this type of plates made by dripping water that circulates through a pre-camera 16. Pre-camera 16 is an enclosure that encloses a water circuit with a water inlet flowing from water tank 2 through an inlet port 22 and a water outlet flowing through an outlet port 24 to the chamber of steam 6. The pre-chamber 16 is defined in its top by a wall 4 of the water tank 2 and the gasket pre-camera 18 that is plugged into the wall 4 of the water tank 2. The pre-chamber gasket 18 is made in an elastic material of an injection piece and in it integrates the output port 24 of the pre-camera 16 and the anti-drip valve 26.

In the wall 4 of the water tank 2 of the pre-chamber 16 the inlet port 22 is made as a hole that is opened and closed by an anti-drip valve 26 to the passage of water from the water tank 2 to the pre chamber 16. The anti-drip valve 26 is integrated in the elastic part of the pre-chamber seal 18 as an axis that extends towards the inlet port 22 and at its end comprises a widening that opens and closes by plugging the inlet port 22 depending on the position of the shaft and a valve spring 27 that drives the shaft to always be closing the inlet port 22. In order for water to enter the inlet port 22 it will be necessary for the drip valve shaft 26 to be pushed to overcome the force of the spring 27 by a pushing element made as a bimetallic disk 50 in thermal contact with the cover 8 of the steam chamber 6 which, depending on the temperature of the steam chamber cover, opens the passage of water through port inlet 22 to the pre-chamber 16. When the bimetallic disk 50 is cold it is in a horizontal position, without exerting pressure on the axis of the anti-drip valve 26 as seen in Figure 1 and Figure 4 of the first embodiment and in Figures 5 and 6 of the second embodiment. When the steam chamber is sufficiently hot, the bimetallic disk 50 is combated by pushing the valve 26 that opens the inlet port 22 to the pre-chamber 16 as seen in Figures 2 and 3 of the first embodiment. In figure 2 the outlet port 24 is closed by the control rod 28 and in figure 3, the rod 28 is giving way to the water through the outlet port 24 to the steam chamber 6. This limits the water only enter the pre-chamber 16 when the plate 1 is hot enough for the bimetallic disk 50 to be combated by the
hot.

The cover 8 of the steam chamber 6 which has a hole 12, and the pre-chamber seal 18 has a outgoing part 20 where the output port 24 is made the which seals hole 12 in its periphery so that it does not spill water on deck 8. The projecting part 20 of the pre-camera 16 is made as an extension cylindrical towards deck 8, which conforms to the shape of the cover surrounding hole 12 of cover 8.

This type of plates 1 works by evaporating water from the water tank 2 in the steam chamber 6 entering it through the exit port 24 of the pre-chamber 16. The volume of water dosing is controlled by means of a movable control rod 28 extending from the inside of the handle 5 of the plate 1 inside the tower of the housing extending inside the pre-chamber to through a pre-camera passage opening Hermetically sealed 46, to adjust the amount of water flowing from pre-camera 16 through the port outlet 24 to steam chamber 6 when control rod 28 is in first position P1a, P1b. The movable control rod 28 it is, in these embodiments, a thin metal bar with an axis straight 29. The rod has a section perpendicular to the axis circular of constant section along much of its Length and is made as a solid piece. The rod of movable control 28 is movable in the directions defined by its axis 29 by means of a drive element 36. The element drive 36 consists of a control wheel 40 protruding by the handle 5 of the iron and which is rotated around its axis 42 by the user to control the operation of the iron. This control wheel 40 has a guide pin 41 that fits into the guide 43 of drive element 36 causing it to move in the direction of axis 29 when being jointly attached to the rod 28, therefore, moving the wheel 40 moves the control rod 28 in the direction of its axis 29 towards the exit port 24 or opening East. The drive element 36 comprises means of drive 38 to return rod 28a to the first position open P1a. These means are made as a spring that Push the rod to this position. To move to the first position P1b closed, the user has to turn the control wheel.

The movable control rod 28 comprises a plug part 32 that sits in the outlet port 24 plugging the water drip to the steam chamber 6 in the first closed position P1b as seen in figures 1 and 2 of the first embodiment of the invention. When raising the rod to a first open position P1a like the one in figure 3 opens the water passage through the outlet port 24. In this embodiment, the plug part 32 ends in a narrow elongation of the control rod movable 28 as a needle 34 which in the first open position P1a, is in the middle of the opening of the output port 24 as see in figure 3 of the first embodiment of the invention. He diameter of the outlet port is about 1.75 mm which allows a needle diameter of 0.2 mm at its end to leave a water drip flow of 40 g / min that will become steam of water when the steam chamber is hot by 2200 W of power of the steam chamber heating element 10.

On the wall 4 of the water tank 2 that forms part of the pre-camera 16, the hermetically sealed pre-chamber passage opening sealed 46 through which goes through the control rod 28 entering the pre-chamber 16. When crossing the rod 28 the wall 4 of the water tank 2 through the opening 46 a ring gasket 48 that fits the rod surface. This ring gasket 48 is preferably of an elastic material that inserted in the opening of pre-chamber passage 46 by clip mode pressure. Therefore, when the rod is in a first position P1a or P1b, opening 46 is tightly closed by the rod 28 in contact with the ring seal 48.

This type of plates of the invention comprise a system for cleaning the steam chamber 6. This system works by flooding the water vapor chamber 6 from the water tank 2 although regardless of chamber 6 being hot or cold To introduce water to chamber 6 cold, do not it will be necessary to open the anti-drip valve 26 as it is planned a water baip on rod 28. The movable control rod 28 It has a rod section 30 which, when rod 28 is in a second position P2a in figure 4 or P2b in figure 6, open the pre-camera step opening Hermetically sealed 46 and allows a flow of water from the water tank 2 to pre-chamber 16 and of the pre-camera 16 through output port 24 to the steam chamber 6.

In Figure 4 of the first embodiment of the invention shows how the rod is in the direction moved up second position P2a with the recess 30a located at opening 46. Figure 7 shows more in detail this situation, and more in detail the recess of the rod 28 as a rod neck 30a. Figure 8 shows the baipás section 30 of the rod 28 located in the passage opening of pre-camera 46 made as a through channel 30b on rod 28. With rod 28 on the upwardly moved second position P2a, the plug part 32 of the control rod is away from the port of departure leaving it completely free to water passage reaching a volume of up to 60 grams per minute. This amount of water allows the steam chamber 6 to be filled with water cold to clean. When the user has entered enough water, turn on the heating element of the chamber steam 10 so that all the water inside the steam chamber break to a boil and drag the lime inside the steam chamber outside through the holes in the soleplate of the plate 14.

In Figure 6 of the second embodiment of the invention shows how the rod is in the down moved second position P2b with the recess 30a located in the opening 46. In this embodiment, unlike the first, the plug part 32 of the rod 28 is outside the pre-chamber when rod 28 is extended by the outlet port 24 on a reduced rod diameter by way of stopper section 44. The stopper part 32 is tapered for settle, as seen in figure 5, on a conical shaped in the outside of the exit port 24 of the pre-camera 16 in a first closed position P1b and that when the rod 28 moves towards the chamber of steam 6 to a first open position P1a, as seen in the Figure 6, gradually letting the water pass to the chamber of steam, in more quantity the more displaced down is the rod 28. In this second embodiment, in Figure 5, the section dipstick rod 30 of rod 28 is located outside and on the pre-chamber 16, inside the water tank 2, so as seen in figure 6, moving down the moveable control rod 28 to the second moved down position P2b, the bumper stopper section 44 leave the passage of water to the steam chamber 6. In figure 6, the baipás section plug 44 opens the outlet port 24 when the control rod movable 28 is in the moved down second position P2b, of so that when water from the water tank 2 enters the hermetically sealed pre-chamber passage opening sealed 46 to pre-chamber 16, water enters the steam chamber 6 through the bumper stopper section 44 of the rod 28 although the steam chamber is cold and the valve anti drip 26 is closed as it is not actuated by the bimetallic drive 50.

List of reference symbols

one

steam iron

2

water tank

4

wall

5

handle

6

steam chamber

8

cover

10

steam chamber heater element

12

orifice

14

ironing sole

16

pre-camera

18

pre-camera board

twenty

outgoing part

22

input port

24

output port

26

anti drip valve

27

Valve spring

28

movable control rod

29

shaft of the movable control rod

30

rod dip section

30th

recess

30b

through channel

32

stopper part

3. 4

needle

36

drive element

38

drive means

40

control wheel

41

guide pin

42

control wheel axle

43

drive element guide

44

bumper stopper section

P1a

first open position

P1b

first closed position

P2a

upward moved second position

P2b

down moved second position

46

pre-camera step opening hermetically sealed

48

ring seal

fifty

bimetallic element.

Claims (19)

1. Steam iron (1) comprising:

-

a water tank (2) that is hydraulically connectable with a chamber of steam (6) through a pre-chamber (16), the pre-camera having an input port (22) communicating with the water tank (2) and an outlet port (24) communicating with the steam chamber (6),

-

a anti-drip valve (26) to open and close the inlet port (22),

-

a movable control rod (28), extending into the pre-camera through a passage opening of hermetically sealed pre-chamber (46), for adjust the amount of water flowing from the pre-camera (16) through the output port (24) to the steam chamber (6) when the control rod (28) is in a first position (P1a, P1b);

characterized because

-

the movable control rod (28) has a rod rod section (30) which, when the rod is in a second position (P2a, P2b), opens the pre-chamber step opening Hermetically sealed (46) and allows a flow of water from the water tank (2) to the pre-chamber (16) and the pre-camera through the output port (24) to the steam chamber (6).

2. Steam iron according to claim 1, characterized because the movable control rod (28) is movable by a drive element (36) between the two positions (P1a, P1b; P2a, P2b). 3. Steam iron according to claim 2, characterized because the drive element (36) has means drive (38) to return the movable control rod (28) automatically from the second position (P2a, P2b) to the first position (P1a, P1b). 4. Steam iron according to one of the previous claims, characterized because the passage opening of hermetically sealed pre-chamber (46) is provided  with an annular gasket (48) making contact with the surface outside of the movable control rod (28) in the first position (P1a, P1b). 5. Steam iron according to claim 4, characterized because the ring seal (48) is a clip type seal which is mountable at the passage opening of hermetically sealed pre-chamber (46) of the Pre-camera (16) in a clipable mode. 6. Steam iron according to one of the previous claims, characterized because the rod dip section (30) is a portion reduced (30a, 30b) of the movable control rod (28). 7. Steam iron according to one of the claims 1 to 5, characterized because the rod dip section (30) is a recess (30a) on the movable control rod (28). 8. Steam iron according to one of the claims 1 to 5, characterized because the rod dip section (30) is a channel through (30b) on the movable control rod (28). 9. Steam iron according to one of the previous claims, characterized because the rod dip section (30) is inside the pre-camera (16) when the control rod movable (28) is in the first position (P1a, P1b), and the rod baipás section opens the opening of hermetically sealed pre-chamber passage (46) when the movable control rod is in an upward moved second position (P2a). 10. Steam iron according to one of the claims 1 to 8, characterized because the rod dip section (30) is out of the pre-camera (16) when the control rod movable (28) is in the first position (P1a, P1b), and the rod baipás section opens the opening of hermetically sealed pre-chamber passage (46) when the movable control rod is in a downward motion second position (P2b). 11. Steam iron according to one of the previous claims, characterized because the passage opening of hermetically sealed pre-chamber (46) is defined on a pre-chamber upper wall (16). 12. Steam iron according to one of the previous claims, characterized because the pre-camera (16) is defined by a wall (4) of the water tank (2), which has the opening hermetically sealed pre-chamber passage (46), and a pre-chamber seal (18) which is connectable in a wall-type mode (4) of the water tank (2) and has the output port (24) of the pre-camera (16). 13. Steam iron according to claim 12, characterized because the pre-chamber seal (18) is Made in an elastic material. 14. Steam iron according to one of the claims 12 to 13, characterized because the anti-drip valve (26) is fully formed in the pre-chamber seal (18). 15. Steam iron according to one of the previous claims, characterized because the plate (1) also comprises a cube 6 (8) of steam chamber (6) that has a hole (12), and that the pre-camera (16) has a protruding part (20) the which contains the outlet port (24) which seals the hole (12). 16. Steam iron according to one of the previous claims, characterized because also comprises a bimetallic element (50) in thermal contact with the cover (8) of the steam chamber (6) for actuate the anti-drip valve (26) depending on the temperature of the cover (8) of the steam chamber (6). 17. Steam iron according to one of the previous claims, characterized because the movable control rod (28) has a stopper part (32) to adjust the amount of water flowing from the pre-camera (16) through the output port (24) to the steam chamber (6) when the movable control rod (28) is in a first open position (P1a); Y the cap part (32) tightly closes the output port (24) when the movable control rod is in a first closed position (P1b). 18. Steam iron according to one of the claims 10 to 17, characterized because the movable control rod (28) has a stopper part (32) to adjust the amount of water flowing from the pre-camera (16) through the output port (24) to the steam chamber (6) when the movable control rod is in a first open position (P1a), the cap part (32) tightly closes the output port (24) when the movable control rod is in a first closed position (P1b), and the plug part (32) has a section baipás plug (44). 19. Steam iron according to claim 18, characterized because the bumper stopper section (44) opens the port of output (24) when the movable control rod (28) is in the First open position (P1a) and / or when the control rod Movable is in the moved down second position (P2b).