FR2747403A1 - STEAM IRONING UNIT - Google Patents

Abstract

Steam ironing unit with a steam generating unit and a steam iron, where the steam generating unit has a water tank, a first circulation pump which can be operated by a steam switch, a steam generator and a heating element, where the water is conveyed through a water pipe from the water tank to the steam generator through the circulation pump, where the steam produced by the generator steam is conveyed through a steam pipe to the soleplate of the steam iron to be expelled through the steam outlet openings to the piece to be ironed, and, where a second water pipe is provided through which is conveys water from the water tank to the steam line using a second circulation pump.

Description

i Steam ironing unit The present invention relates to a

  steam ironing unit with a steam production unit and a steam iron, o the steam production unit comprises a water tank, a first circulation pump which can be actuated by a steam switch, a steam generator and a heating element, where water is conveyed through a water pipe from the water tank to the steam generator thanks to the circulation pump, and, where the steam produced by the steam generator is routed through a steam line to the soleplate of the steam iron to be expelled through the outlet openings of

steam to the ironing room.

  Patent EP 559 620 A1 discloses a steam ironing unit where water is conveyed by a pump from a separate water tank into the vaporization chamber of a steam iron. Compared to conventional steam irons, with a built-in water tank, this steam ironing unit has the advantage of being equipped with a water tank of significantly larger volume so that ironing must be interrupted less often due to empty tank. However, this steam ironing unit has the disadvantage that the steam iron has a relatively small steam chamber, which can only produce a small amount of steam. To overcome this drawback, patent DE 3,410,247 A1 proposes a steam ironing unit provided with a separate steam generator which can produce a much greater quantity of steam. However, a steam generator of this type has the disadvantage of producing superheated steam with a low humidity level, while to ensure proper ironing, it is

  the humidity level of the steam must be as high as possible.

  In addition, steam ironing units must be equipped with

  special safety devices.

  The subject of the present invention is a steam ironing unit which does not have the drawbacks mentioned above and which allows steam ironing during which, by actuating a corresponding switch on the iron, a A large quantity of steam with a high humidity level is expelled without delay by the soleplate of the iron and continues to be expelled without interruption for a relatively long period of time. These objectives will be achieved thanks to a steam ironing unit characterized by a second circulation pump, integrated in a water pipe, which can be actuated by a steam switch and conveying water from a water tank directly in a steam line and in that simultaneously or with a time difference, a first circulation pump conveys water into a steam generator so that the steam produced swirls the water introduced by the second circulation pump and pushes it in front of it into the soleplate of the steam iron where the water evaporates out of said soleplate as wet steam,

  complementary to the steam produced in the generator.

3 2747403

  As water is conveyed into the steam line thanks to a second circulation pump integrated in a second water line,

  and that, simultaneously or with a time lag, water is routed

  born by the first circulation pump into the steam generator, it is obtained that the steam produced in the steam generator causes the water injected into the vortex by the action of the second circulation pump in the

  steam pipe and pushes it in front of it to the sole of the iron

  pass where it evaporates. The steam coming out of the soleplate of the iron pre-

  thus feels a high humidity which allows to obtain an excellent ironing result, especially in the case of very crumpled ironing pieces. The heated soleplate of the iron advantageously serves as an additional steam generator so that the quantity of steam produced in the generator

  steam itself is further increased. Due to the propulsive force

  sion presented by the steam produced in the steam generator, the steam leaves the soleplate of the iron in the form of a jet of steam which penetrates

deep into the tissue.

  An exemplary embodiment of the invention is presented in the accompanying drawings.

  attached and will be described in more detail in the following description.

  Figure 1 shows a steam ironing unit according to

The invention.

  Figure 2 shows a timing diagram.

  Figure 3 shows another timing diagram.

  The steam ironing unit shown in Figure 1 includes a steam generating unit with a steam iron (1). Said steam generating unit (16) has a separate water tank (2) and a separate steam generator (3). Between the steam generator (3) and the water tank (2) is arranged a circulation pump (4) which conveys water through a water pipe (5) from the water tank (2 ) to the steam generator (3). The steam generator (3) is heated by a heating element

  (10). The supply and output of the pump (4) are controlled by means of

  popes (11) and (12). The steam produced in the steam generator (3) is routed through a steam line (6) to the steam iron (1). Inside said iron (1), the steam is conveyed by steam lines (17) provided in the soleplate (9) of the iron, which is heated by a heating element (13), towards the ironing room. Another circulation pump (7) conveys water through a bypass line

  (8) from the water tank (2) to the steam line (6).

  The supply and output of the pump (7) are controlled by valves (14), (15). On the handle of the iron is arranged a switch (S1) which makes it possible to start or stop the pumps (4) and (7) via

an electronic control (18).

  Figure 2 shows a timing diagram of the steam ironing unit according to the invention. By actuating the switch (S1), the circulation pump (7) is started thanks to an electronic control, and, water is conveyed from the water tank (2) as far as the steam line ( 6). With a time difference, the circulation pump (4) is started thanks to an electronic control so

  that water is routed from the water tank (2) to the general

  steam heater (3) previously heated. The steam produced there is routed through the steam line (6) to the iron (1). The water already present in the steam line (6) is entrained in a vortex by

  the arrival of steam and the wet steam thus obtained arrives through the

  preheated iron (9) on the iron, the soleplate

  heated iron acting as a complementary steam generator

  to hush up. In order to regulate the humidity of the steam, the circulation pump (7) is started, respectively stopped periodically, water being injected

  by the pump (7) in the steam line (6) at a predetermined time.

2747403

Claims (1)

CLAIM   Steam ironing unit with a steam generating unit and a steam iron (1), where the steam producing unit (16) has a   water tank (2), a first circulation pump (4) which can be operated   born by a steam switch (S1), a steam generator (3) and an element   heating (10), where water is conveyed through a water pipe (5) from the water tank (2) to the steam generator (3) thanks to the circulation pump (4) , and, o the steam produced by the steam generator (3) is conveyed by a steam line (6) to the soleplate (9) of the steam iron (1) to be expelled through the outlet openings steam (14) to the ironing room, characterized by a second circulation pump (7), integrated in a second water pipe (8), which can also be actuated by the steam switch (S1) and conveying water from the water tank (2) directly in the steam line (6) and in that simultaneously or with a time difference, the first circulation pump (4) routes water into the steam generator (3) so that the steam produced swirls the water introduced by the second circulation pump ( 7) and pushes it in front of it as far as the soleplate of the steam iron (9) where the water evaporates out of said soleplate (9) as   than wet steam, complementary to the steam produced in the generator (3).