JPS62502448A - Stuffed core especially for airplane seats and method for building this stuffed core - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Padding especially for airplane seats To build a wick and this stuffing the method of The present invention relates to a filling material according to the generic concept of claim 1 and the filling material. Concerning methods for creating a memorial service.

The padding for conventional airplane seats is generally made of suitable polyurethane foam. It consists of To adequately control the danger to aircraft passengers and crew in the event of a fire. Ensure that all filler materials used do not emit toxic combustion gases during the fire. and, it is necessary not to aid the spread of fire. Suitable for traditional fillings To meet these requirements, the padding is covered with fire-resistant upholstery. this This will prevent ignition.

The generation of such toxic gases in the event of a fire is significantly reduced. but, Complete coverage with fire-resistant upholstery is often technically difficult or For example, in areas where the support tubing penetrates, it is not possible to The filling material, which liquefies, falls in drops and bursts into flames on the floor. These words Because of this, such woven upholstery fabrics often do not offer significant flame resistance.

When liquefied foam is burnt, for example on the floor, toxic and even explosive gases are released. Occur.

Additionally, fire protection materials applied to the filler or incorporated into the foam during its manufacture. The use of agents is known.

This fire retardant makes the material less flammable, but it also prevents the material from becoming volatile and aging. This fire retardant can only remain effective for a relatively limited time. It has the disadvantage of. Produce such a stuffing. This silicone foam The quality meets the required values in terms of flammability and combustion gas generation, but the weight It has drawbacks. Parts made of this material can only be formed in the form of blocks. Can not.

In view of the above, the problem underlying the present invention is to solve the problem of light weight filling. The memory itself has the required properties in terms of flammability and combustion gas generation and therefore This filler repellency is achieved without the need for special coatings to provide such properties. Using only a small amount of material, it is possible to form the It is to accomplish.

This problem is solved by the feature set forth in claim 1 in the case of filling the above-mentioned style. It is solved. A method for making such a filling is described in claim X. It is listed. Other configurations of the present invention can be obtained from the embodiments section of the claims. Ru.

The invention will now be described in detail with reference to the embodiments illustrated in the accompanying drawings.

Figure 1 shows the head cushion, Figure 2 shows the mold for making the filling. Figure 3 is a cross-sectional view of the filling hole with knot points, and Figure 4 is a cross-sectional view of the filling hole with welding locations. Cross-sectional view.

FIG. 1 shows a head cushion 1 with a padding 2, a covering 3 and a fabric upholstery 4. It shows. This cushion 1 is held by a U-shaped support 5. , this support material passes through the filling material 2. Stuffing material 2 is relatively heat-resistant fiber 6, In particular, it consists of synthetic fibers.

In addition to the aircraft industry, this trend also applies to the automobile and furniture industries. The individual fibers 6 can also be used in particular irregularities within the filling material 2. The fibers are arranged in a three-dimensionally curved line, oriented toward the regularity of the fibers. When the cushion is loaded, it receives the force and deflects advantageously. Fiber 6 has elasticity Therefore, when the stuffing material 2 is unloaded, it returns to its original shape. Compounds used The specific gravity of the material is approximately 1.1 to 1.5 g/d. Approximately 60% using this synthetic material ~200 kg/RF+ capacity type with the required mechanical properties You can make a stuffed meal.

As basic materials for producing the fibers 6, the following materials are particularly suitable.

extrudable synthetic material 1. Polyetheretherketone (PEEK) 2. Polyetherimide (PEI ) 3. Polyamideimide (FAI) 4. Polyether sulfone (PES) Non-extrudable synthetic materials 7. Polyacrylonitrile (PAN) Figure 2 shows a mold 7 for making a filling.

This mold 7 consists of an upper mold hand part 8 and a lower mold hand part 9, and these mold halves are separated by a dividing surface. 10 and are in contact with each other. Type 7 is partially cut out. Inside the dashed line The airspace has the shape of the filler hole 11 to be created. Mold halves 8.9 are cooled A cooling channel 12 for the liquid is provided. Inside the mold 7, there are many small Two nozzles 13 and 14 with holes 17 are provided, and arrows 15 and 16 It is formed to be slidable in the direction. A suitable synthetic material is used to make the filling material 11. It is extruded through the hole 17 into the hollow space within the mold 17 . In this case, the plasticity of many The grown yarn flows into the mold 7, and the nozzle 13.14 is operated in the direction of the arrow 15.16. By moving it, it is evenly distributed within the mold 7. Since the mold is cooled, this These threads are consolidated into irregularly oriented and three-dimensionally curved threads 6. Straight from hole 17 By changing the diameter and the proportion of the thread 6 in the mold capacity, it is possible to adjust the filling requirements in each case. You can adjust the nature you want. As the fiber 6 solidifies in the mold 7, the filling When the mold 11 is removed from the mold 7, the external contour of the fibers is the same as the external shape of the stuffed material 11 to be created. matches.

Another embodiment of the invention is shown in FIG. Ru. This configuration is such that the fibers 6 surround this as a thin skin and are in contact with the fibers 6. The point is that it is provided with an upholstery forming a node 19 at the contact location. this Upholstery is applied by impregnation or spraying and is generally made of a suitable synthetic resin, e.g. It consists of a mido-based resin. Silicone elastomer is also used as a tension material. It is also possible to use This further increases the heat resistance of the fiber 6. .

Furthermore, the upholstery is mixed with microscopic hollow spheres containing an active substance that has a flame-suppressing effect. It is also possible to

FIG. 4 shows a cross-sectional view of another construction of the filling pad. In this embodiment , the fibers 6 are welded together at their contact locations. Welding position 20 is after extrusion is formed automatically if the fiber's self-temperature is sufficient for welding.

The configuration of the molding process is such that extrusion is carried out from above into a mold that is open at the top, and the mold is then It is at the point where it can be closed for the first time. Again, the nozzle is used to evenly distribute the fibers. , perform controlled movements.

Another embodiment of the invention consists in that the filler-resistant fibers 6 consist of different materials.

Furthermore, the filling material 2 is provided with a skin inside the mold 7, which is especially made of silicone material. It is also possible.

FIG. 2 FIG.4 international search report ANNEX To T)! E INTERNATIONAL 5EARCHRE PORT 0NUS-Am 3459631 0S108/69 None

Claims (1)

[Claims] 1) an elastic, elongated, particularly irregularly oriented and three-dimensionally curved Particularly in stuffed cores for airplane seats, the material is above, characterized in that it is formed as a fiber (6) consisting of a thermoplastic material; Stuffed core. 2) The mutual contact position of individual fibers (6) is formed from the sticking part as a knot (19) The stuffed core according to claim 1, wherein the stuffed core is 3) A claim in which the mutual contact points of the individual fibers (6) are formed as welding points. The stuffed core according to item 1 or 2 of the range. 4) From claim 1, in which the active substance is mixed in the basic substance of the fiber (6). The stuffed core described in any one of items up to 3. 5) Any of claims 1 to 4, in which the active substance serves to increase strength. The stuffed core described in one of the above. 6) Claims 1 to 5, in which the active substance acts to increase heat resistance. The stuffed core described in any one of the above. 7) The fibers (6) are provided with an upholstery containing an active substance. The stuffed core described in any one of items 6 to 6. 8) Claim 1, wherein the upholstery fabric contains an effective substance for increasing heat resistance. The stuffed core according to any one of Items 1 to 6. 9) Especially irregularly oriented and three-dimensionally curved elastic fibers (6) In a method for making a stuffed core, in particular for airplane seats, consisting of fibers ( 6) is placed in a mold in a plastic state, uniformly distributed within the mold capacity, and cooled. The above method. 10) Inserting the fibers (6) into the mold (7) by means of extrusion nozzles (13, 14) The method according to item 9. 11) Control the extrusion nozzles (13, 14) against the mold (7) during extrusion molding. 11. The method according to claim 9 or 10, wherein relative movement is performed. 12) The mold (7) is cooled with a coolant flowing through channels (12) in its walls. The method according to any one of items 9 to 11. 13) Divide the mold (7) horizontally and insert the fibers from above into the mold (7) that is open at the top. 13. The method according to any one of claims 9 to 12, wherein the method comprises: 14) providing the mold (7) with a cooling liquid and directly extruding the fibers (6) into this cooling liquid; A method according to any one of claims 9 to 13. 15) The fibers (6) are suspended in the mold (7) until solidified by airflow coming from below. Any one of claims 9 to 14, which is maintained in a state and cooled. The method described in. 16) Especially irregularly oriented and three-dimensionally curved elastic fibers (6) In a method for making a stuffed core especially for airplane seats, consisting of The manufactured fiber (6) is plasticized by heat and molded into the shape of a stuffed core using a mold (7). The above method, characterized in that: 17) Claim 9, wherein the upholstered fabric is formed by impregnating or spraying the fiber (6). to 16.