WO2009097978A1

WO2009097978A1 - Ironing table

Info

Publication number: WO2009097978A1
Application number: PCT/EP2009/000433
Authority: WO
Inventors: Klaus Jakob; Anja Nedele
Original assignee: Veit Gmbh
Priority date: 2008-02-05
Filing date: 2009-01-23
Publication date: 2009-08-13
Also published as: ATE516402T1; EP2250314A1; DE102008007573A1; CN101970748B; EP2250314B1; DE102008007573B4; CN101970748A

Abstract

The present invention relates to an ironing table having a base plate, a padding layer, and a cover. An ironing table is provided having an improved padding, of simple construction, that can be produced economically. To this end, the padding layer comprises a three-dimensional knitted fabric having a knitted cover layer permeable to steam and air, a knitted base layer permeable to steam and air, and spacing fibers connecting the cover and base layers to each other, wherein the spacing fibers are curved and extend bent into the cover layer and the base layer.

Description

ironing board

The invention relates to an ironing board with a base plate, a cushion layer and a top cover.

Ironing tables are u.a. used in the production of clothing. In intermediate steps in the production of individual parts or blanks but also seams and seams are smoothed. The resulting end product is brought into shape by ironing.

Such ironing tables usually include a fan and a work surface. The garments or blanks are applied to the work surface and smoothed with an iron, usually with steam. Air is sucked from the work surface or blown towards the working surface via the fan. By sucking off, the steam introduced into the fabric to be ironed by the iron is removed, the textile fibers are cooled and thereby fixed. By sucking the steam through the reference surface of the work surface through the condensation of water vapor is reduced in relation. There is therefore no or less moisture formation in the reference. Furthermore, the garments are fixed by the vacuum created during suction on the work surface. By air blows the garments can be easily applied to the work surface and removed from her. Wrinkling when placing the garments on the work surface is avoided.

The work surfaces are usually constructed of several layers and generally comprise a base plate, at least one cushion layer and a top cover. Depending on the requirements, however, further layers can be provided. The base plate is usually a perforated plate is used, on which the other layers are arranged. In simple reference systems, a padding layer of foam material is arranged on the perforated plate, which prevents the formation of button marks and shiny spots in the ironing material during ironing. This padding layer is attached to the perforated plate with an upper cover.

This is described, for example, in WO 2007/121758 A1. In this case, the base plate of the ironing board is formed so that the area of an opening or hole of the perforated plate is smaller than 15 mm ² and the area of all openings in the Base plate is a maximum of 7% of the total area of the base plate. As a result, the ironing board has a uniform suction / blowing behavior over the entire work surface.

For higher demands on the ironing result another reference system is used. In this case, a perforated silicone mat with a certain thickness is placed on the base plate. On the perforated silicone mat, a plastic fabric is arranged to filter the air drawn through the reference system and thus protect the silicone mat and possibly the fan unit from contamination. On the plastic fabric, a cushion layer of foam is arranged, with the turn of the formation of Knopfabdrücken and shiny spots should be avoided in the ironing. Also in this reference frame an upper cover is provided, with which the other layers are fixed to the base plate. The top cover must be particularly temperature resistant in all reference systems, as it comes into direct contact with the iron.

From DE 20 2005 008 325 U1 a roll lining for a mangling machine is known. The roll cover comprises a spacer fabric with two spaced layers joined by spacer threads. Between the two layers of the spacer fabric, an elastic cushion layer is arranged. The cushion layer provides rubber elasticity of the roll cover in the thickness direction.

However, the known reference systems have a number of disadvantages. In the simple frame of reference in which the cushioning layer consists only of a foam layer, the foam layer is compressed by the heat and pressure during the ironing, can stick together and then no longer relax completely, so that the cushioning properties diminish. In addition, moisture can accumulate in the foam.

A disadvantage of the multilayer, the silicone mat comprehensive reference systems that these reference systems have a complex structure, therefore not easy to change and also are relatively expensive.

It is therefore an object of the present invention to provide an ironing board with a cover, which has good cushioning properties and even after prolonged use and heavy load still spring-back properties. The ironing board should also have a simple structure and be inexpensive to manufacture. For this purpose, the invention provides that the cushion layer comprises a three-dimensional knitted fabric with a vapor and air permeable, knitted cover layer, a vapor and air permeable, knitted base layer and the cover layer and the base layer interconnecting spacer threads, wherein the spacer threads are arcuate, bent both in the Protruding cover layer as well as in the base layer and are designed as bending-stressed springs.

In the present case, a knitted fabric is understood to mean all types of textile structures in which threads are mechanically connected to one another, for example linked, interwoven, knitted or knitted.

The supplied during ironing steam and the heat supplied can be led away by the three-dimensional knitted fabric down through the base plate and sucked away and carried away. During ironing under pressure, the three-dimensional knit cushions the base plate, so that there are no shiny spots on the fabric to be ironed and no impressions caused by buttons or the like. Due to the arch shape, the spacer threads have spring-back properties. When relieving the three-dimensional knitting, i. when removing the iron, the spacer threads spring back, the cushion layer can relax. The three-dimensional knit is therefore not permanently compressed.

By applied during ironing on the iron force, the springs or the spacer threads are compressed and therefore subjected to bending. Preferably, the spring characteristic of the springs is linear or progressive, i. the force needed to compress the spacer threads, and thus the three-dimensional knitted fabric, increases the more the springs or spacer threads are compressed. This ensures that the three-dimensional knitted fabric while ironing somewhat deformed and thus has the desired cushioning effect. After a certain penetration, however, the iron is braked and can not penetrate to the base plate or penetrate. This also avoids that the three-dimensional knitted fabric is pressed so strong during ironing that the cover layer comes into contact with the base plate and the material to be ironed is rewetted.

An expedient embodiment provides that the spacer threads are integrated into the knitted cover layer and into the knitted base layer. As already described, in the present case, the term knitted fabric and thus also under or knitted all types of interconnected threads, yarns or fibers or the joining of threads, yarns, fibers, etc. understood to a textile structure. The cover layer and the base layer can therefore also be woven, knitted or otherwise produced. By incorporating the spacer threads in the cover layer and the base layer, a firm connection of the spacer threads with the cover layer and the base layer is achieved, the three-dimensional knit holds firmly together and can not easily dissolve.

Preferably, the spacer threads can extend at least in one direction of the three-dimensional knitted fabric crossing each other and form a framework. By this framework, an additional stabilization of the three-dimensional knitted fabric is achieved, the springback of the three-dimensional knitted fabric in the initial state after ironing is supported.

Conveniently, the three-dimensional knit has a temperature resistance of at least 18O ⁰ C. The three-dimensional knitted fabric, in particular the spacer threads, must not deform, melt or collapse due to the heat applied during ironing. Experiments have shown that a temperature resistance of 180 ⁰ C is sufficient.

In a favorable embodiment, it is therefore provided that the three-dimensional knitted fabric contains polyester. Polyester has high temperature resistance and good elastic properties. In addition, polyester is steam resistant.

However, it can also be provided that the cover layer, the base layer and the spacer threads consist of different materials. Thus, the cover layer, the base layer and the spacer threads can be optimally adapted to the different requirements. The cover layer must have a higher temperature resistance than the spacer threads and the base layer. In addition, the cover layer should have certain cushioning properties and be smooth in order to avoid the formation of glossy marks or impressions on the ironing material. For the spacer threads, a resilient material can be used, the base layer is preferably made of a stable material. This structure can also save costs.

A variant provides that the three-dimensional knit has a thickness of at least 4 mm, preferably 6 - 15 mm. Experiments have shown that good cushioning properties are achieved at this thickness. In addition, a pressing of the cover layer avoided while ironing on the base plate. On the items to be ironed so no prints, also the top layer is not brought into contact with any condensed on the base plate water vapor, which could otherwise lead to a rewetting of the ironing.

In order to obtain a uniform padding over the entire surface of the ironing board, it can be provided that the density of the spacer threads in the three-dimensional knitted fabric is at least 30 threads / cm ² , preferably 50 to 500 threads / cm ² .

A further preferred embodiment provides that the spacer threads span an entry angle of 15 ° to 90 °, preferably 30 ° to 60 °, with the cover layer or the base layer. The entry angle is in each case the smaller of the two angles, which are clamped between the plane of the cover layer or the plane of the base layer and a tangent to the spacer thread in the entry point of the spacer thread in the respective plane. At these entrance angles, the free length of the spacer threads, that is the thread piece which extends freely between the base layer and the cover layer, is so short that kinking of the spacer threads is avoided and the spring-back properties are retained.

Yet another advantageous embodiment provides that the padding layer is single-layered and comprises only the three-dimensional knitted fabric. Since no further layers or intermediate layers in the padding layer of the ironing board are necessary, so that a cost-effective construction is achieved.

The structure of the ironing board can be further simplified if the cushion layer rests directly on the base plate.

It has proved to be particularly advantageous if the three-dimensional knit is water repellent. Should water vapor condense in the three-dimensional knitted fabric, the condensate on the three-dimensional knitted fabric rolls off and can easily be sucked off through the base plate. A rewet the ironing is avoided.

Conveniently, it may further be provided that the cover layer and the base layer have different knitted fabrics. Thus, for example, the cover layer have a smooth upper side in order to avoid the formation of prints on the ironing material. The Base layer preferably has a coarse-meshed knit which provides good stability and high air permeability.

In the following, embodiments of the invention will be explained in more detail with reference to a drawing. Show it:

1 shows a three-dimensional representation of an ironing board,

Fig. 2 section through the ironing surface of the ironing board of FIG. 1 along the line N-II and

3 is an enlarged perspective view of the three-dimensional fabric of FIG. 2.

In Fig. 1 an inventive ironing board 1 is shown. The ironing board 1 comprises a base unit 2, in which a fan unit is arranged. The base unit 2 is connected to the ironing surface 3, so that air can be sucked from the ironing surface 3 or blown into the ironing surface 3 via the fan unit. The base unit 2 is further connected to a foot switch 4, via which the switching of the fan unit from the suction to the blowing operation.

The ironing board 1, in addition to the ironing surface 3 also still have pivot arms 5, 6, to which further ironing surfaces 7, 8 are attached. The ironing surfaces 7, 8 are smaller than the ironing surface 3 and are used for example for ironing shirtsleeves. The ironing surfaces 7, 8 are also connected to the base unit 2, so that an extraction or blowing can also take place here.

The ironing board 1 has a chimney 9, through which the sucked in by the fan unit air is released back into the environment. As a result, the exhaust air can be selectively led away from the ironing board 1. In the chimney 9, an operating unit 10 is integrated, via which the base unit 2 can be controlled. At the chimney 9, a lighting unit 11 is fixed with a iron float 12. On the ironer bar 12, the ironer can be attached so that the weight of the ironer is mainly carried by the ironer bar 12.

Fig. 2 shows a section through the ironing surface 3 of the ironing board 1 along the line N-II. The ironing surface 3 comprises a trough 13, which is connected to the base unit 2, so that in the tub 13, an overpressure or a negative pressure generated and sucked in accordance with air or can be blown away. On the tub 13, a base plate 14 is attached. The base plate 14 is screwed or otherwise secured to the tub 13 and laterally sealed with a sealing tape to prevent false air suction. So the full fan power is used on the ironing surface 3. The base plate 14 is preferably a perforated plate, but it is also conceivable to use other plates with corresponding openings for air extraction. On the base plate 14, a cushion layer 15 is applied. Preferably, the cushion layer 15 is directly on the base plate 14. But it can also be provided to provide intermediate layers between the base plate 14 and the cushion layer 15, for example, a fabric made of plastic or metal.

The cushioning layer 15 comprises a three-dimensional knitted fabric having a knitted base layer 17, a knitted cover layer 18 and spacer threads 19 which connect the base layer 17 to the cover layer 18. As already described, the term knitted fabric in the present case, all types of interconnected threads, yarns, fibers, etc. understood that form a textile structure, including tissues, knits, etc .. Preferably, the cushion layer 15 comprises only this three-dimensional knitted fabric , However, it can also be provided that further layers are arranged in the cushion layer. The cushion layer 15 and possibly further layers applied to the base plate 14 are tensioned with an upper cover 16 onto the base plate 14 or the trough 13. The top cover 16 is preferably made of temperature-resistant plastic.

In Fig. 3 is a perspective view of the three-dimensional knitted fabric, which is used as a cushion layer shown. The three-dimensional knit comprises a base layer 17 which faces the base plate 14. On the side facing the top cover 16, the three-dimensional knitted fabric comprises a cover layer 18. Both the base layer 17 and the cover layer 18 are made of a steam-permeable and air-permeable knitted fabric. The base layer 17 and the cover layer 18 are connected to each other by spacer threads 19. The spacer threads 19 are arcuate and protrude bent into the cover layer 18 and the base layer 17.

In the base layer 17 and the cover layer 18, the spacer threads 19 are incorporated into the respective knit, ie woven or knitted, etc., and follow the thread pattern in the base layer 17 or in the cover layer 18. Thus, very long threads are used as spacer threads 19. in each case several times in the cover layer 18 and the base layer 17 are introduced and emerge from these again. In this case, the spacer threads 19 are woven or acted upon in the base layer 17 and the cover layer 18 in such a way that they run at a crossing point in at least one direction of the three-dimensional knitted fabric and form a framework. The spacer threads 19 thus close both with the cover layer

18 as well as with the base layer 17 different entrance angle Cx ₁ , α ₂ a. The base layer 17 and the cover layer 18 are interconnected by the spacer threads 19 such that the three-dimensional knit forms a one-piece panel and the individual layers are no longer separable without destroying the three-dimensional knit fabric.

The entry angle Cx ₁ , α ₂ , ie the smaller of the two angles, which are respectively clamped between the cover layer 18 or the base layer 17 and a tangent at the entry point of the spacer threads 19 in the cover layer 18 and the base layer 17 to the spacer surfaces 19 , is in the range of 15 ° to 90 °, preferably 30 ° to 60 °. As already described, the entry angles Ci ₁ , α _{2 of} the spacer threads 19 into the cover layer 18 and into the base layer 17 need not be identical, but may assume different values, ie both the entry angles Ct _{1 of} different spacer surfaces 19 into the base layer 17 may have different values assume as well as the entry angle α ₂ different spacing surfaces 19 in the cover layer 18 may assume different values.

The three-dimensional knitted fabric has a temperature resistance of at least 18O ⁰ C in order to avoid destruction by the heat introduced during ironing. Preferably, the three-dimensional knit contains polyester, wherein it can also be provided that the cover layer 18, the spacer threads 19 and the base layer 17 consist of different materials. To save costs, it can be provided that the cover layer 18 is made of temperature-resistant material, as the spacer threads 19 and the base layer 17. The three-dimensional knitted fabric has a thickness of at least 4 mm. Experiments have shown that a three-dimensional knitted fabric with this thickness is not so strongly compressed during ironing that the cover layer 18 comes into contact with the base plate 14 and thus water condensed on the base plate 14 would lead to a rewetting of the ironing material. Preferably, the thickness of the three-dimensional fabric is in a range of 6 - 15 mm. As already described above, the spacer threads 19 between the base layer 17 and the cover layer 18 have an arcuate shape. If pressure is applied to the three-dimensional knitted fabric during ironing, then the spacer threads 19 are bent further in the direction predetermined by the bend and do not buckle. By the bend is also ensured that the spacer threads 19 easily spring back to the starting position. The spacer threads 19 are preferably designed as bending-stressed springs. The spring characteristic of the springs or spacer threads 19 is linear or progressive. In order to obtain a uniform spring-back over the entire ironing surface 3, the density of the spacer threads 19 in the three-dimensional knit fabric is at least 30 threads / cm ² , preferably 50 to 500 threads / cm ² . The thickness of the spacer threads is in a range of about 0.1 to 0.75 mm. If thicker spacer threads are used, the number of threads / cm ² can be reduced.

The material of the three-dimensional fabric is preferably water-repellent. If water vapor condenses in the three-dimensional knitted fabric during ironing, the condensate will bead on the three-dimensional knitted fabric and can easily be sucked down through the trough 13.

It can also be provided that the cover layer 18 and the base layer 17 of the three-dimensional fabric have different knitted fabrics. The cover layer 18 is preferably made of a knitted fabric, which is smooth at least on the upper side, which faces the upper cover 16, so as to avoid the formation of glossy marks or marks in the ironing material. The base layer 17 may be formed, for example, from a coarse mesh, whereby the suction of condensate is facilitated.

Claims

claims

1. ironing board (1) with a base plate (14), a cushioning layer (15) and a top cover (16), characterized in that the cushioning layer (15) has a three-dimensional knit fabric with a vapor-permeable, air-permeable, knit cover layer (18), a vapor and air permeable, knitted base layer (17) and the cover layer (18) and the base layer (17) interconnecting spacer threads (19), wherein the spacer threads (19) are arcuate, bent both in the cover layer (18) and protrude into the base layer (17) and are designed as bending-stressed springs.

2. ironing board (1) according to claim 1, characterized in that the spacer threads (19) in the knitted cover layer (18) and in the knitted base layer (17) are integrated.

3. ironing board (1) according to any one of claims 1 or 2, characterized in that the spacer threads (19) extend at least in one direction of the three-dimensional knitted fabric crossing each other and form a framework.

4. ironing board (1) according to one of claims 1 to 3, characterized in that the three-dimensional knitted fabric has a temperature resistance of at least 180 ⁰ C.

5. ironing board (1) according to one of claims 1 to 4, characterized in that the three-dimensional knitted fabric contains polyester.

6. ironing board (1) according to one of claims 1 to 5, characterized in that the cover layer (18), the base layer (17) and the spacer threads (19) consist of different materials.

7. ironing board (1) according to one of claims 1 to 6, characterized in that the three-dimensional knitted fabric has a thickness of at least 4 mm, preferably 6 -15 mm.

8. ironing board (1) according to one of claims 1 to 7, characterized in that the density of the spacer threads (19) in the three-dimensional knit fabric is at least 30 threads / cm ² , preferably 50 to 500 threads / cm ² .

9. ironing board (1) according to one of claims 1 to 8, characterized in that the spacer threads (19) has an entry angle (α-i, α ₂ ) of 15 ° to 90 °, preferably 30 ° to 60 °, with the cover layer or base layer.

10. ironing board (1) according to one of claims 1 to 9, characterized in that the cushion layer (15) is single-layered and comprises only the three-dimensional knitted fabric.

11. ironing board (1) according to one of claims 1 to 10, characterized in that the cushion layer (15) rests directly on the base plate (14).

12. ironing board (1) according to one of claims 1 to 11, characterized in that the three-dimensional knitted fabric is water-repellent.

13. ironing board (1) according to one of claims 1 to 12, characterized in that the cover layer (18) and the base layer (17) have different knitted fabrics.