ANTI-ACCELERATION PANTS

Description

[0001] The present invention relates to acceleration protection trousers, or G-protection trousers for short, instead of a conventional full G-suit for the crew of high-performance aircraft.

[0002] High acceleration forces can occur during turns. For the pilot's body, this means that positive g-forces along the vertical axis cause blood to pool from the upper regions of the body. In this situation, the heart must work harder to ensure sufficient blood and thus oxygen supply to the brain and eyes. However, if its capacity limits – which vary from person to person – are exceeded, the resulting oxygen deprivation can lead to impaired vision (tunnel vision, greyout) or even complete unconsciousness (blackout). g-induced loss of consciousness - G-LOC) and thus lead to mission aborts and / or accidents. High g-forces occur, for example, in air races, aerobatics, and military flight profiles (air combat, interception maneuvers after weapons engagements, etc.). To a certain extent, aircrew can suppress or delay the negative effects of high g-forces. In addition to appropriate training, they achieve this, for example, through targeted muscle tension or Valsalva maneuvers. These measures are supported by technical solutions such as inclined seats, Valsalva maneuvers with oxygen-enriched air, and anti-g suits, or a combination of these methods. Ultimately, however, limitations in performance and operational capability, as well as rapid exhaustion, cannot be completely prevented.

[0003] Protective suits for hazardous materials (G-suits) are available in various designs. They are distinguished by whether they are pressurized with air, i.e., pneumatic G-suits, or whether they operate on the hydrostatic principle. These latter suits either exert hydrostatic pressure directly on the wearer or are equipped with fluid channels running essentially along the local and instantaneous Z-axis. By shortening the circumference of the suit around the body's limbs, the internal pressure is increased by the amount of fluid. For simplicity, both of these are referred to as hydrostatic G-suits, although the fluid is by no means limited to water. Known G-protective suits are described, for example, in EP 1 755 948, which is probably the closest prior art, and also in US 2007 / 0289050, JP 2008 012 958 and DE 10 2007 053 236. Furthermore, a G-protective suit is known from WO2012 / 066114A1.

[0004] In such G-suits, the body regions and / or parts to be protected are generally surrounded by the suit or parts thereof. The body parts and regions particularly stressed by the often extreme accelerations are pressurized within these suits by bladders or tubes pressurized with compressed air or gas, depending on the accelerations along the instantaneous and local Z-axis, denoted Gz. This counteracts the pilot's hemostatic pressure. This is the general function of such G-suits.

[0005] The effort required to achieve adequate G-force protection with conventional suits is still considerable, and a key objective of this invention is to reduce this effort primarily by achieving sufficient G-force protection with G-force trousers alone, instead of a complete suit. These G-force trousers are intended to provide sufficient G-force protection for applications representing up to approximately one-third of the total relevant market. This includes the entire market, not just the market for solutions for high-performance combat aircraft, but also the market for less demanding applications, such as use in jet trainers and, more generally, in aircraft where similar accelerations occur. These acceleration or G-force trousers are designed to be effective under all circumstances and conditions without requiring any special pilot behavior, such as that required with conventional G-suits, particularly at the limits of their effectiveness.

[0006] Conventional G-suits are relatively heavy and stiff, and the wearer easily sweats in them, negatively affecting their natural G-tolerance and well-being. Some G-suits can cause foot and arm pain in the wearer, and the overpressure breathing they induced ( Pressure Breathing under G - PBG There are general medical doubts about the effectiveness of G-protection trousers. Therefore, they should provide absolutely reliable G-protection, meaning the prevention of so-called [missing information]. G-LOC to ensure this G-protection with minimal effort, ideally without requiring breathing under positive pressure. The G-protection trousers should function without any influence from the wearer, i.e., without forced breathing, i.e., without Anti G Straining Maneuvers" (AGSM)The G-suit is designed to provide optimal performance in all situations, offering maximum comfort and feeling almost as comfortable as underwear. This should prevent premature fatigue and reliably prevent pain. Furthermore, the G-suit is designed to provide buoyancy support when submerged in water. Optionally, it can include an active cooling system. This G-suit is intended to be manufactured as a standard size, eliminating the need for custom tailoring of such trousers for individual wearers, which was previously often necessary with suits.

[0007] Since the pressure is currently generated by the outer shell of a G-suit against the wearer's body, depending on the body part to be protected, the air bladders that create this pressure vary in size. As can be seen from the prior art documents, the volume of these bladders is relatively large, almost completely covering the lower body. This, combined with the compressibility of air and considering the high onset rates of G-forces, leads to a slower reaction time for the G-suits. The previously known and most common "5-bubble" G-suit trousers essentially date back to 1945 and provide a G-force of approximately 1.0 G. This requires more than 24 liters of air at a pressure of 750 mbar. The 1.04 G-force rating of the standard G-suit trousers was certified by a renowned flight surgeon based on over 1000 tests.An improved version from 1980 with so-called "full bladder coverage" such as that offered by the AEA G protective trousers, also known as FCAGT (. F ull C overage A nti G - TThe G-protection suit (as used, for example, in the Eurofighter) provides G-protection of only 1.5 G, or up to 2.5 G for short periods with additional positive pressure ventilation and a counter-pressure vest. However, it reacts very sluggishly to changes in acceleration. The JSF Joint Strike Fighter G-protection trousers from the British company Survitec, used, for example, in the F-35 fighter, are similar in design to the AEA G-protection system. The currently best full-body G-protection suit, according to EP 2 640 637, offers a pressure build-up three times faster than the AEA G-protection system, using 34 liters of air at 750 mbar to achieve full pressure, i.e., pressure on the entire body. This European patent also takes into account the prior art according to US 2008 / 275291 from WO2005 / 123504. This document discloses an acceleration protection suit for aircraft pilots. The suit described can also be divided into a separate jacket and trousers.At least the components of the G-protective trousers are double-walled, creating airtight compartments on the inside or outside that can be pressurized with acceleration-dependent air pressure. The trousers are made entirely of a breathable, tear-resistant, fire-resistant, and low-stretch synthetic fabric and are equipped with compartments in certain areas. These compartments can be inflated to an almost circular cross-section via an external hose leading to an automatically metered compressed air supply. This allows the compartments to act like muscles, as their two opposing edges can be contracted, thus tensioning the adjacent fabric sections. However, only two such compartments are provided along the legs of the trousers.DE 10 2007 053236 A1 discloses an acceleration protection suit that includes an air-filled abdominal bladder and pretensioning elements in the thigh area. However, this system is a separate functional component, distinct from the suit, and the disclosed invention generally relates to a suit. The tension is generated only locally at the pretensioning elements.

[0008] The object of the present invention, considering the aforementioned aspects of the prior art, is to create acceleration protection trousers, or G-protection trousers, by means of which the internal pressure can be controlled according to the relative size of the body to be protected and according to the acting local and instantaneous acceleration Gz, and furthermore, the volumes to be filled for this purpose should remain small. The G-protection trousers should also be comfortable to wear without requiring a precise fit. They should be easy to put on and take off, comparable to putting on ordinary jeans, and should eliminate the need for the positive pressure breathing otherwise required in a G-suit. In addition, they should offer optional features such as air conditioning. A further object of these G-protection trousers is to facilitate the venous return of blood to the pilot's legs by rhythmically changing the generated internal pressure.These G-protection trousers are designed to maintain the pilot's hand position on their thigh during inflation under G-forces by eliminating pressure pads on the thigh. Eurofighters, F / A-18s, and other aircraft feature a central control stick, and pilots often rest their control arm on their thigh for long-term support or to facilitate sustained flying during long turns. Finally, these G-protection trousers are designed to be worn over a flight suit and can even be pulled over flight boots for easy donning. They are specially designed for this purpose, allowing for effortless, quick, and easy donning and doffing over the flight suit and boots, meaning they can be slipped over the boots, allowing the boots to remain on during the process.

[0009] The solution to the given problem is achieved by acceleration-protective trousers or G-protective trousers for pilots of aircraft in which high accelerations occur, wherein at least parts of the G-protective trousers are double-walled and thus form airtight compartments (1; 5 13, 17, 18, 25, 34, 35) on the inside or outside, which can be pressurized with acceleration-dependent air pressures, wherein the G-protective trousers consist entirely of an air-permeable, tear-resistant, fire-resistant and low-stretch synthetic textile fabric, and the G-protective trousers are equipped in places with compartments (1; 5 13, 17, 18, 25, 34, 35) which can be inflated to an approximately circular cross-section by pumping via an externally leading hose (22) with fitting (24) for connection to an automatically metered compressed air supply, so that these compartments act as Muscles work,in that their two opposite edges are drawable together and the adjacent pieces of fabric (14, 15) are thereby tensionable, and which is characterized in that these compartments (34, 35) run continuously along the inside and outside of the trouser legs and are connected at the upper end of the trouser legs by an inguinal channel (18) running along the lower area (11) of the inguinal crotch, and the compartments (34) on the outside of the trouser legs extend further upwards from the inguinal crotch and terminate towards the lower abdomen in a sack-like bladder (13), while on the back of the trousers, in the area of ​​the sacrum (16) of the wearer they communicate with each other via a connecting channel (17) and from this a coccyx channel (5) branches off downwards and extends between the buttocks of the wearer in the direction of the crotch, the compartments (1; 5 13, 17, 18, 25, 34,35) communicate via at least one hose (22) with fitting (24) with an automatically metered compressed air supply.

[0010] The dependent patent claims describe particularly advantageous embodiments of these protective trousers in a further specified form. The protective trousers presented here demonstrably achieve, with less than 24 liters of air at 750 mbar, a printable area on the lower body more than 2 to 2.5 times that of the previously standard "5-bubble" protective trousers. Furthermore, the printing across the almost 100% printable area of ​​these new protective trousers is much faster and more uniform, including the buttocks. Due to the almost 100% uniform printing of the new protective trousers, no constrictions occur, thus preventing blood pooling in any body parts that would then be insufficiently or not at all perfused, as can happen with all other protective trousers.Furthermore, the printing of the entire body area covered by the trousers takes place in less than one second, which is significantly faster than with conventional "5-bubble" G-protection trousers and much faster than with AEA / FCAGT G-protection trousers. In contrast to the 1.0 to 1.5 G protection offered by all existing G-protection trousers worldwide (5-bubble, AEA, FCAGT, etc.), these new G-protection trousers have proven their protective function up to 3.8 G in biometrically controlled centrifuge tests. These G-protection trousers achieve this outstanding performance compared to known G-protection trousers through their special construction, as described in the patent claim. For the first time, it is possible to guarantee the necessary acceleration protection for the majority of missions and flight operations with just these G-protection trousers, instead of a complex, complete G-protection suit.These G-protection trousers are of course much lighter, more comfortable and quicker to put on, wear and take off than a much more elaborate and complete G-protection suit.

[0011] The drawings provide a more detailed explanation of these G-protective trousers and the underlying invention. They show: Fig. 1: A 5-bubble G-protective trouser according to the prior art; Fig. 2: The 5-bubble geometry of the G-protective trousers according to Figure 1 Fig. 3: G-protective trousers with full coverage by bladders according to the prior art; Fig. 4: The geometry of the full-coverage bladder of the G-protective trousers according to Figure 3 Fig. 5: The G-protective trousers according to the invention, turned inside out, worn by a virtual body, with pneumatic muscles along the inner and outer sides of the trouser legs, and a divided abdominal bladder; Fig. 6: The geometry of the compartments or the pneumatic muscles of the G-protective trousers according to Figure 5, which are inflatable with compressed air and integrated into the G-protective trousers, in the state when separately spread out on a plane; Fig. 7: The same as in Figure 6 Shown, but with arrows to indicate how they are shown here and in Figure 6 The outer compartments are folded inwards to form the inner compartments along the inside of the trouser legs; Fig. 8: The geometry and position of the compartments or the pneumatic muscles of the G-protective trousers according to Figure 5 , in the spatial position or location within the G-protective trousers after folding over according to Figure 7for wearing the G-protective trousers, but the G-protective trousers are turned inside out as shown here; Fig. 9: A compartment acting as a pneumatic muscle, lined on the inside with a rubber-elastic, airtight and stretchable layer, shown in cross-section in its flat state; Fig. 10: A compartment acting as a pneumatic muscle, lined on the inside with a rubber-elastic, airtight and stretchable layer, shown in cross-section in its partially inflated and contracted state; Fig. 11: A compartment acting as a pneumatic muscle, lined on the inside with a rubber-elastic, airtight and stretchable layer, shown in its fully inflated and fully contracted state in an approximately circular cross-section; Fig. 12: The G-protective trousers turned inside out, seen from the front in their relaxed state, with the two trouser legs spread outwards, slightly bent at the knees; Fig.Fig. 13: The G-protective trousers, inside out, seen from behind, with the compartments partially inflated; Fig. 14: The G-protective trousers, inside out, in a relaxed state, seen from the right side, lying on the ground, with the knees of the two trouser legs angled differently; Fig. 15: The G-protective trousers, inside out, in a stretched state with the compartments inflated, seen from the front; Fig. 16: The G-protective trousers, inside out, in a stretched state with the compartments inflated, seen from the left side; Fig. 17: The G-protective trousers, inside out, in a stretched state with the compartments inflated, seen from the right side; Fig. 18: Another version of these G-protective trousers, inside out, in a relaxed state, worn by a virtual body to illustrate the position of its internal components, seen from a slightly oblique front view; Fig.19: This version of the G-protective trousers, inside out, in a relaxed state, worn by a virtual body to illustrate the position of its internal components, viewed from the left side; Fig. 20: This version of the G-protective trousers in a relaxed state, now inside out, worn by a virtual body, viewed from behind; Fig. 21: This version of the G-protective trousers according to . Figure 20 in a relaxed state, worn by a virtual body, viewed from the right and obliquely from behind; Fig. 22: Another version of the G-Pants after being put on, with open zippers in the front of the pant legs, viewed from the front; Fig. 23: The G-Pants after Figure 22 with the open zippers on the fronts of the trouser legs, seen from behind; Fig. 24: The G-trousers according to Figure 22 and 23with the zipper closed on the left trouser leg and the zipper fully open on the right trouser leg, seen from the front; Fig. 25: The G-trousers according to Figure 22 and 23 with the zipper on the right trouser leg partially open and the zipper on the left trouser leg fully open, seen from the front; Fig. 26: The G-trousers according to Figure 22 and 23 after putting them on, with the zippers on the front of both trouser legs fully open, seen from the front; Fig. 27: The G-trousers after Figure 22 and 23 in the worn state, with the zippers closed at the front of the trouser legs, viewed from the front; Fig. 28: The G-trousers according to the Figures 22 to 27 dressed, viewed from her right side; Fig. 29: The G-pants according to the Figures 22 to 28 dressed, viewed from her left side; Fig. 30: The G-pants according to the Figures 22 to 29Lying on the ground, with the zippers on the front of the trouser legs open, seen from the front; Fig. 31: The G-trousers according to the Figures 22 to 30 Lying on the ground, with the zippers on the front of the trouser legs open, seen from behind; Fig. 32: The G-protective trousers according to the Figures 22 to 31 , worn over a flight suit and especially over the flight boots, with the zipper open on the right trouser leg; Fig. 33: The G-protective trousers according to the Figures 22 to 32 , worn over a flight suit and especially over the flight boots, with closed zippers on the trouser legs; Fig. 34: A pilot with these G-protective trousers, put on over his flight suit and over his flight boots, so that the trouser legs of the G-protective trousers end on the shoes of the boots like those of assault trousers.

[0012] To better understand the nature of the invention, the systems of G-protective trousers according to the prior art will first be briefly presented and discussed. For this purpose, the Figure 1A so-called 5-blade G-protection suit, shown here in its worn state. Invented in the late 1940s, it remains the most widely produced G-protection system in use. Such G-protection suits are known to increase a pilot's G-protection by an average of 1.0 G. They are worn over a pilot's jumpsuit (23) and incorporate several bladders—five in total. Cutouts (40) are located around the crotch and at the front of the knees to improve freedom of movement for sitting. The bladders are all interconnected and are inflated via a compressed air hose when needed. The inflated areas then press directly against the pilot's body surface, causing blood to pool at the edges of the cutouts (40), similar to a blood pressure cuff used by doctors. This blood pooling can lead to circulatory problems, increased blood pressure, and an elevated heart rate.

[0013] The Figure 2Figure 26 shows the bladder system of these G-protective trousers with its five interconnected bladders 26. The various bladders 26 are supplied with compressed air via a hose 27. Inside the G-protective trousers, one bladder 26 covers the front of each thigh, and another covers the front of each lower leg. A fifth bladder 26 covers the lower abdomen. When this bladder system is pressurized, the bladders 26 inflate according to their geometry, generating pressure on the wearer's body to counteract the pilot's hemostatic pressure. The large volume of the bladders 26 has disadvantages: firstly, it makes the system relatively sluggish, resulting in correspondingly long reaction times; secondly, these airtight bladders 26 cover relatively large portions of the wearer's body, preventing the evaporation of sweat.Therefore, such G-protective trousers prove to be a veritable "sweatbox," meaning they create a heat build-up in the legs, and consequently, the wearing comfort leaves much to be desired. In contrast to the new G-protective trousers described in this application, this type of G-trousers must be worn very tightly to provide any anti-G performance, which severely restricts freedom of movement and wearing comfort.

[0014] The Figure 3This shows another example from the prior art, introduced around 1980, namely full-coverage G-protection trousers. In these trousers, shown here lying loosely on the ground in a front view, the bladders extend over a much larger portion of the wearer's body, as will be shown below. These conventional G-protection trousers are made of a relatively heavy and non-breathable textile fabric according to ISO 9237 20 to 90 l / m² < xs, preferably a fire-resistant Nomex aramid fabric as the outer shell, in which the bladder is located. The bladder system consists of reinforced and non-stretch polyurethane-coated nylon. The outer shell is equipped with zippers for the waist and lower legs, with, for example, six adjustable drawstring areas and two easily removable leg pockets 28 with zippers for opening and closing.These pockets 28 with viewing windows 29 are incorporated on the front of the thighs for storing and viewing documents. Again: In contrast to the new G-protective trousers according to this application, these must be in . Figure 3 The type of G-suit shown is designed to be worn very tightly to provide effective anti-G performance, which severely restricts the pilot's freedom of movement and comfort, and significantly increases the donning time. It also doesn't compress the buttocks, and its large abdominal bladder presses / pushes forcefully and very uncomfortably into the stomach area under pressure. Such trousers increase a pilot's G-protection by an average of 1.5 G.

[0015] The Figure 4 The bladder system of these full-coverage G-protective trousers shows Figure 3The bladder 30 extends practically around the entire surface of the legs, completely encircling each leg from the outside, leaving a gap 31 along the inside of the trouser legs – hence the term full-coverage G-protection trousers. At the top, the bladder 30 continues over the lumbar and lower abdominal area 32, covering this area up to the lateral hips. This bladder 30 is supplied with compressed air via a laterally inserted hose 33. Here, too, the covering of large parts of the legs and lower abdomen proves disadvantageous for heat dissipation from the body. Many body parts are covered by these trousers with airtight material, and they consequently act as actual "sweat pants," because when flying, one sits on one's buttocks, and thus heat cannot escape from the pilot's body to the outside. Accordingly, such full-coverage G-protection trousers prove to be uncomfortable to wear.The large volume of the single-piece bladder 30 leads to a system-related inertia, meaning that the reaction times for pressure build-up and pressure reduction are relatively long.

[0016] The G-protective trousers according to the invention are in Figure 5Shown with the inside facing out, these trousers, unlike previously known G-protective trousers, are made entirely of a unique fabric specially developed for them, offering high air permeability according to DIN EN ISO 9237 up to 500 l / m² < xs min. This fabric is also characterized by extremely high tensile strength according to ISO 13934-1 of up to 2000 N / 5 cm. This standard, ISO 13934-1, specifies a method for determining the maximum force and elongation of textile fabrics using a strip method. The method is mainly applicable to textile fabrics, including fabrics exhibiting elongation properties obtained firstly by the presence of elastomeric fibers in the fabric, and secondly by mechanical or chemical treatment of the fabric.It can also be applied to fabrics produced using other techniques, but not to geotextiles, nonwovens, coated fabrics, glass fabrics, or fabrics made from carbon fibers or polyolefin ribbon yarns. The method specifies the determination of the maximum force and elongation at maximum force of test specimens in equilibrium with the standard testing atmosphere, and of test specimens in a wet state. The method is limited to the use of CRE testing machines (. Constant Rate of Extension).

[0017] These G-protective trousers, as in Figure 5The material shown offers extremely high durability with very low stretch, and its weight per unit area is a mere 121 + / - 5 grams per square meter. This protective trousers can be worn directly against the skin, eliminating the need for the compressibility of traditional underwear. For hygienic reasons, however, the trousers can optionally be worn with specially designed, fire-resistant, ultra-thin, and breathable undergarments. These trousers offer exceptional comfort, feeling against the skin like very fine natural cotton, similar to pajamas. The fabric is made from fire-resistant, fully synthetic, antistatic, highly durable, and low-stretch yarn blends, including aramid fibers, woven into a breathable material.The front and back of the trouser legs are designed solely as textile strips 14. They are breathable and allow body heat to dissipate.

[0018] A unique feature of these G-protective trousers is that they are not based on a conventional bladder system, but rather incorporate a pneumatic muscle system consisting of compartments with a small, divided abdominal bladder 13. Outer compartments 34 extend along the outer sides of both trouser legs from the waistband to the lower hem 9. Inner compartments 35 extend along the inner sides of the trouser legs from the crotch to the lower hem 9. These outer 34 and inner 35 compartments are connected to each other along the lower inguinal crease 11 via inguinal channels 18. At the front and back between the outer 34 and inner 35 compartments, i.e., in the area of ​​the front and back of the trouser legs, there are air-permeable textile strips 14, 15 (also in Figure 14(shown) are incorporated, which then lie directly on the front and back of the wearer's legs. The outer compartments 34 extend above the legs over the lower abdomen and each form a sack-like pocket for the formation of a bladder 13, so that the two bladders 13 thus formed cover the entire lower abdomen. On the back, the two outer compartments 34 are connected by a channel, as will become clear from further drawings. These compartments, acting as pneumatically contracting muscles, are pressurized over the entire lower body, including the legs, as needed. These compartments 34, 35, 18, 13 have a relatively small surface area, but can nevertheless apply pressure to the entire lower body.These pneumatically contracting muscles are not designed to act directly as inflated areas exerting pressure on the adjacent body, but rather indirectly, by stretching the adjacent air-permeable fabric sections around the body. They thus instantly contract the bubble-free textile strips 14, 15 as needed, encircling the covered body parts or limbs, thereby creating the pressure on the body in those areas. Extensive centrifuge tests showed that these G-protection trousers offer pilots an average of 3.5 to 3.8 G more G-protection, meaning two to three times more G-protection than any other commercially available G-protection trousers. These G-protection trousers are extremely lightweight, weighing approximately one-third less than a standard G-protection trouser. They can be put on easily, like jeans, unlike the complicated process of putting on conventional G-protection trousers.

[0019] The integrated compartments 34, 35, 18, and 13 therefore function as pneumatically operating muscles for contraction, not as mere bladders intended to press directly against the body surface. These compartments are integrated into the textile fabric, for example, by sewing, gluing, or welding, or by doubling the fabric by applying a strip of textile material to the inside or outside of the G-protective trousers, so that the strip is only connected to the textile material at its edge. These compartments are made of the same low-stretch material as the rest of the textile. In an initial design variant, flexible, expandable elastomer tubes are inserted into these compartments, which expand when pressurized. These inflated tubes then conform to the inner surfaces of the compartments and inflate them to a circular cross-section.As a result, the two lateral edges of the initially flat compartments move towards each other, that is, they contract, and thus stretch the textile pieces adjoining the outer compartments. In another embodiment, the compartments are lined internally with a rubber-elastic, airtight material. When air is pumped into the interior of the compartments, they instantly deform into a circular cross-section and contract the outer textile pieces, which then encircle the covered body parts and thus exert pressure on the body surface.

[0020] The Figure 6 shows the geometry of the compartments or these pneumatically contracting muscles of the G-protective trousers according to Figure 5, which are inflatable with compressed air and integrated into the G-protective trousers, in the state when spread out on a flat surface. The compartments 34 are intended for the outer sides of the two trouser legs. The compartments 35 shown on the outside of the image, on the other hand, are intended for the inner sides of the trouser legs and are installed as shown in Figure 7The curved arrows indicate that the pockets are folded over. At the top, the compartments 35 for the inner sides of the trouser legs are connected to the compartments 34 for the outer sides of the trouser legs via a groin channel 18 each. The compartments 34 for the outer sides of the trouser legs extend upwards from the hip to the waistband. On the front of the trousers, they each terminate in a sack-like pocket, forming a bladder 13, which together cover the entire lower abdomen. The outer compartments 34 are connected to the area at the back, in the sacral region 16 of the wearer, via another channel 17. From this channel 17, a coccyx channel 5 branches off downwards, extending down between the wearer's buttocks when the G-protective trousers are worn.This coccygeal canal 5 measures 2 cm to 6 cm in width and extends downwards to apply pressure to the buttocks, but without a dangerous "air cushion effect" in the event of an ejection seat activation.

[0021] In Figure 8 This compartment geometry is shown in a spatial representation, on a G-protective trouser, with compartments 35 for the inner sides of the trouser legs, starting from the situation as in Figure 6 and Figure 7shown, but these compartments 35 are now folded inwards. The compartments 34 for the outer sides of the trouser legs thus run along the outside of the trouser legs, and the compartments 35, which extend along the inside of the trouser legs, are connected to the outer compartments 34 via the inguinal channels 18. All areas between the outer 34 and inner compartments 35 remain explicitly free of airtight covering or are bridged by highly breathable textile fabric. In the lower abdominal area, one can see the starting from the position in Figure 6 and Figure 7 inwardly folded sack-like pouches as bladders 13. In the sacral region, the connecting canal 17 and the coccygeal canal 5 branching off downwards from it can be seen.

[0022] All such pneumatic muscles for the trouser legs are integrated solely on the outer and inner surfaces of both trouser legs, so that the front and back of the trouser legs remain free of compartments and the textile fabrics lie directly on the legs as textile strips 14, 15, providing high air permeability in these areas to allow perspiration to diffuse outwards. This effectively prevents inflation on the upper thighs when sitting. The pilot can rest his forearm on his thigh regardless of the G-force and the pressure exerted by the G-protective trousers, and the arm remains still during changes in load. This particularly facilitates continuous turns.

[0023] In Figure 9A cross-section through such a textile compartment is depicted as a pneumatically acting, contracting muscle. A textile strip 7 is applied to one side, which can be located on the outside or inside of the basic trouser material 4. On the inside of the compartment thus formed, this is located in the same way as in Figure 9 The example shown is lined throughout with a rubber-elastic, airtight layer 2. In the two corners 6 of the compartment 1, the airtight coatings 2 are joined together to form a seal. When air is pumped into the interior of this compartment 1, it inflates because the air cannot escape, and eventually the compartment assumes a circular cross-section. The edges contract towards each other. It is clear that the textile strips 14, 15 adjoining the compartment on both sides – here, left and right of the compartment – ​​are thereby drawn together, as shown in Figure 10indicated by the arrows on the left and right. In Figure 10 The compartment shown (1) is partially inflated. This inflation can continue until the cross-section of compartment 1 becomes approximately circular, as shown in Figure 11 as shown. A Dry Air Cooling System is available as an option: In this case, compressed air, supplied separately through laminated ventilation veins 21, is released through the lip-shaped openings 19 onto the wearer's body surface, where it creates a cooling effect.

[0024] The airtight inner fan linings or the air tubes inserted within them are made of an elastomer, meaning they are flexible and stretchable. They are, as in the Figures 9 to 11The air tubes or the interior of the air tubes 2 within the air tubes 2 are encased on both sides by low-elasticity textile coverings and form the compartments 1 of the G-protective trousers. When compressed air is applied to the air tubes or the interior of the compartment coverings 2 within the air tubes 1, it stretches adjacent textile pieces and thus builds up a circumferential tension σ, which is described by the relationship σ = p * r builds up a pressure p inside the body tissue. Therefore, p = σ N / m r m ⌊ N m 2 ⌋ p is inversely proportional to the local curvature r of the body part.

[0025] Furthermore, a flexible, elastic rubber tube can be loosely guided through the interior of a compartment 1. When air is pumped into it, it expands and eventually completely fills the interior of compartment 1, and at sufficient internal pressure, this tube is able to inflate the compartment to an approximately circular cross-section. Accordingly, the two edges of the compartment contract, and the adjacent air-permeable textile strips 14, 15 are drawn together.

[0026] The Figure 12This G-protective trousers are shown inside out, lying relaxed on the ground, viewed from the front, with the two trouser legs spread outwards, slightly bent at the knees. As on the outside of the trouser legs, compartments 35 extend along the inside of the trouser legs from the crotch 10 downwards to the trouser hems 9. From the crotch 10, groin channels 18 extend diagonally outwards and upwards from the compartments 35, along the lower edge 11 of the groin to the outer side 12 of the trousers, the hip area. From there, further compartments extend into the front of the trousers below the waistband 8, each in the form of a sack-like pocket, a bladder 13, horizontally along the waistband 8 to the wearer's midsection.

[0027] The Figure 13 The G-protective trousers are shown inside out, with the compartments only slightly inflated (34, 35) and viewed from the rear. Like these Figure 13As shown, the waistband 8 can be equipped with belt loops 3. These are located on the inside here because, in this illustration, the inside of the trousers is turned outwards. The pockets 34 for tensioning the trousers, in this particular G-protective trousers, extend downwards from near the waistband 8 on both outer sides of the trousers, along the outside of the legs down to the hems 9. From the waistband 8 area, on both sides of the trousers, the pockets 34 extend horizontally along the rear of the trousers, visible here, to the crotch area 16, covering in particular the outer halves 25 of the buttocks. From the center of the back of the waistband, a pocket in the form of a coccyx channel 5, 2 cm to 6 cm wide, extends downwards to the level of the wearer's crotch.When the pneumatically connected compartments 5, 17, 34, 35 are pressurized with air, they all bulge and contract in width. This shortens the distance between the two compartment edges, thereby tensioning the adjacent breathable textile sections 15 and enclosing the covered body parts with varying degrees of tension. Because the fabric used for these trousers is a very low-stretch material, both in terms of fiber and bond elongation, this tension and tight enclosure of the body parts, especially the upper and lower legs, but also the entire pelvic area and particularly the buttocks, is implemented very effectively and instantly. At the same time, this single-layer textile material, lying directly against the body, is exceptionally breathable and thus air-permeable.This very property ensures that the wearer can perspire and that their sweat can escape through the flat textile strips 14, 15 in contact with the body. The textile sections 15 between the outer 34 and inner compartments 35 on the back of the trouser legs are made of the same thin and breathable fabric and contribute to comfortable seating. Due to their single-layer construction, they ensure the most direct and therefore natural contact possible with the cockpit seat surface. The wearing comfort is thus significantly and incomparably improved compared to conventional non-breathable or nearly non-breathable fabrics. When empty or flat, the compartments have a maximum width of a few centimeters.

[0028] The Figure 14This illustration shows these G-protective trousers, inside out, in a relaxed state, facing right, with the trousers lying on the ground and the left leg slightly forward. The inner compartment 35 is visible on the left leg, and the outer compartment 34 on the right. The fabric sections 14 and 15 located between compartments 34 and 35 of each leg are made of a thin, breathable material. Those on the front of the legs are labeled 14, and those on the back are labeled 15. These sections 14 and 15 primarily ensure that, firstly, the tension created by compartments 34 and 35 is maintained because the fabric is elastic, and secondly—very importantly—that perspiration can diffuse outwards thanks to the good air permeability and breathability of this fabric.Because these G-suit trousers are also made of a particularly lightweight fabric, they offer a level of comfort previously unknown for G-suits. On the front of the trousers, you can see the right of the two sack-like bladders 13, which extend across the wearer's abdomen.

[0029] In Figure 15This G-protective trousers are shown with the inside facing out in a stretched state, i.e., with the inflated compartments viewed from the front. Therefore, the belt loops 3 are located on the inside. Here, the compartments 34 running along the outer sides of the trouser legs are inflated, as are the compartments 35 running along the inner sides of the trouser legs. The inner compartments 35 open at the top into the groin channels 18, which run along the lower edges of the groin, i.e., diagonally outwards and upwards, and extend into the side areas almost to the waistband 8. From the side areas in the hip region, a sack-like pocket branches off on each side of the G-protective trousers towards the center of the abdomen to form a bladder 13.This illustration shows the textile strips 14 on the front of the trouser legs, which are made of thin and breathable fabric, so that this low-stretch but highly breathable textile lies directly against the wearer's bare leg. The wearer can perspire through these front and rear sections of the trouser legs, meaning that perspiration can efficiently diffuse outwards through the textile strips 14, 15, which greatly increases the comfort of these G-protective trousers.

[0030] The Figure 16The illustration shows the G-protective trousers turned inside out in a relaxed state, with empty compartments 13, 18, 25, 34, 35, viewed from the left side of the trousers. This illustration focuses on the outer compartment 34 on the left outer side of the left trouser leg. In the knee area, compartment 34 is cut to form a recess 20, which allows the knee to bend without tension for the cockpit seat position. Otherwise, compartment 34 runs the entire length of the leg, accommodating both the thigh and lower leg of the wearer.

[0031] The Figure 17The illustration shows the G-protective trousers turned inside out in a partially inflated state with compartments 13, 18, and 34 not fully inflated, viewed from the right side, with the knee areas of the two trouser legs unwound differently. Here, the clearly visible compartment 34 on the right side of the trousers, i.e., the right trouser leg and right hip, is clearly visible. In front of the lumbar region, the sack-like bladder 13 is visible, extending lengthwise below the waistband 8 and meeting in the middle with the bladder 13 arranged symmetrically to the opposite side.

[0032] In Figure 18This G-protective trousers are shown inside out in a relaxed state, worn on a virtual body, indicated by dashed lines, viewed from a slightly oblique front angle to illustrate the position of the individual components inside the trousers. The outer compartments 34, running along the outer sides of the trouser legs, and the inner compartments 35, running along the inner sides of the trouser legs, are visible. Thin, breathable fabric pieces 14 are arranged between them to maintain tension when the compartments 34 and 35 are inflated and to allow perspiration to diffuse outwards. The groin channels 18 connect to the inner compartments 35 at the top, and above these are the two sack-like bladders 13 for compressing the groin and lower abdomen when inflated. The G-protective trousers are finished at the top with the waistband 8. There are two zippers, 36 and 38, leading from the crotch to the waistband, 8.Zipper 36 is the primary zipper, and the secondary zipper 38 is only opened if the wearer gains significant weight, in order to increase or widen the waist of the trousers. These G-protection trousers are designed and sewn in a similar fit to leather motorcycle trousers, meaning the legs are designed for a bent-leg position. This ultimately results in a much more comfortable seating position when subjected to high pressure.

[0033] The Figure 19This illustration shows the G-suit trousers turned inside out in a relaxed state, worn on a virtual body, indicated by dashed lines, viewed from the left side to illustrate the position of the internal components. The outer compartment 34 is visible on the outside of the left trouser leg, followed by the thin, breathable fabric piece 14 at the front, and the thin, breathable fabric piece 15 at the rear of compartment 34. Also visible is the supply hose 22 with connecting fitting 24 for the compressed air, turned outwards. Compressed air supply systems are already present in aircraft flown with G-suits. These systems allow for finely metered, automatically controlled compressed air supply and exhaust, and can be seamlessly integrated with these G-suit trousers.

[0034] In Figure 20The illustration shows the G-protective trousers in their relaxed state, now with the outer side facing out and worn by a pilot, viewed from behind, indicating the position of the internal components. Here you can see the thin and breathable textile inserts 15 at the back of the trouser legs and the two compartments 25, which cover the outer halves of the pilot's buttocks. The lower legs of the trouser legs are equipped with zippers 41. The same applies to Figure 21 shown again in a slightly oblique rear view. Below the waistband 8, the two buttock pockets 25 can be seen following the outer pockets 34, which buttock pockets 25 cover approximately the outer halves of the pilot's buttocks. Figures 19 to 21 The G-protective trousers are shown in the version in which they are worn inside boots and under a flight suit.

[0035] One of the key objectives of these G-rated protective trousers is to avoid the need for a custom-made garment for every pilot, allowing a single pair of trousers to fit multiple wearers within a given size category. The pressure application via these specific, muscle-like compartments also serves this purpose.

[0036] The main valve for the compressed air supply also serves as a safety valve. This immediately seals the compartments off from the outside world as soon as... The cabin pressure collapses for some reason, or the aircraft's pressure supply fails. In such a situation, the G-protective trousers act like a pressure suit, maintaining stable pressure conditions within non-critical limits. Conventional, approved flight suits (overalls) can be worn over these G-protective trousers according to the invention, optionally with additional features for protection against CBRN agents and / or cold water. The G-protective trousers can also be equipped with a Dry Air Cooling System Be equipped for even greater comfort in extremely hot climate conditions.

[0037] Thanks to the exclusive, very low-stretch fabric, which is simultaneously highly breathable and air-permeable, the amount of air required to build up pressure with these G-protective trousers has been significantly reduced. Consequently, pressure build-up and release occur much faster than with any other G-protective trousers on the market. These G-protective trousers are, for the first time, as easy to put on as ordinary jeans. Although no tight fit to a specific body type is necessary, these G-protective trousers can provide effective G-protection for wearers up to two sizes larger. No drawstrings or buckles are required to achieve a close fit. Despite the absence of drawstrings, tabs, or buckles for individual adjustment, there is no reduction in pressure and no time lost during pressure build-up due to stretching drawstrings or tabs for size adjustment.

[0038] These G-protection trousers are also able to apply pressure to the buttocks without relying on an air cushion effect, thanks to the tension generated by the pneumatic muscles around the seat area. This significantly increases the level of G-protection compared to conventional full-print G-trousers, which use full-surface printing with bubbles but lack seat printing. Another unique feature is that these G-protection trousers can be worn with the legs tucked into the boots, as in... Figure 20 and Figure 21This is shown. This effectively prevents foot pain under G-forces. A non-return valve can be installed between compartments 5, 13, 17, 18, 25, 34, 35 and the outside of the G-force protective trousers. This valve closes in the event of a sudden pressure loss in the aircraft and / or cockpit atmosphere, thus maintaining pressure in the compartments. Another integrated valve can be activated by a humidity sensor when immersed in water, allowing the compartments to retain their air content and generate buoyancy.

[0039] A particularly interesting version of these G-protection trousers is found in the Figures 22 to 34 As shown in this example, as in Figure 22The G-protective trousers are shown being worn directly against the skin, something that was previously impossible, requiring only specially adapted, fire-resistant, ultra-thin, and breathable textile underwear. Pockets 28 with viewing windows 29 and lower flaps 42, which can be closed with zippers or hook-and-loop fasteners, are sewn along the outer and upper sides of the thighs of the trouser legs. The pockets are attached to the trouser legs by means of hook-and-loop fasteners, while the inner and lower sides of the pockets are fastened to the trouser legs with hook-and-loop fastener strips. Zippers 37 run upwards from the lower edge of the trouser legs along their front, under the attached pockets 28, almost reaching the crotch 10. This arrangement of the zippers 37 is only possible because these areas on the front and back of the trouser legs do not enclose any compartments or bladders.To put on the trousers, the primary zipper 36 at the waistband is opened, and the wearer steps into the trousers. The wide opening of the zippers 37 along the legs allows for quick and easy donning and doffing of the G-protective trousers. It also allows the wearer to put on the G-protective trousers over their already-on flight suit and flight boots, and then simply close the primary zipper 36 and the zippers 37 running along the legs. The second zipper 38 at the waistband allows for adjustment if a pilot has gained some weight over time. After closing zippers 36 and 37, the G-protective trousers are ready for connection to the compressed air supply in the cockpit. Taking them off is just as quick and easy, following the reverse procedure.Getting in and out of these trousers is therefore possible in just a few seconds, something never before, not even remotely, possible with any other G-protection trousers. Until now, a G-protection suit was always cumbersome to put on and take off, never quick and easy, and certainly not something you could pull on over a flight suit and flight boots like jeans.

[0040] The Figure 23 Figure 37 shows these G-protective trousers with open zippers running lengthwise along both lower legs when worn, viewed from behind. Two Velcro strips 39 are visible on each side of the lower legs, allowing for the attachment of additional pockets if needed.

[0041] The Figure 24This shows G-protective trousers with the zipper 37 fully open on the right leg, as worn over bare skin or leg. As can be seen, the zipper 37 extends almost to the crotch level 10 of the G-protective trousers. To open and close the zipper 37, the pocket 28 above it is folded outwards, as shown above the right thigh, and then pressed back onto the hook-and-loop fastener 28 using its hook-and-loop fasteners. In an additional version (not shown), which allows for the positioning of other pockets or tactical equipment on the thigh, the zipper 37 is positioned on the inside of the trouser leg, extending almost to the crotch level of the G-protective trousers.

[0042] The Figure 25This G-protective trousers show the zipper 37 fully open above the left leg and the pocket 28 folded outwards. On the underside of the pocket 28, the hook-and-loop fastener strips 38 are visible, which allow the pocket 28 to be pressed back onto the hook-and-loop fastener 38 on the trouser leg when the zipper 37 is closed. Figure 26 This G-protection trousers are shown with the pockets 28 folded outwards and both zippers 37 on the front of the leg fully open.

[0043] The Figure 27This G-suit trousers are shown worn directly over the bare skin with the zippers closed (37). The trouser legs fit snugly and directly against the legs, ensuring the trousers are always ready for action. Thanks to their close-fitting yet comfortable cut, their fit, and their highly breathable fabric—unlike other bulky G-suit trousers made of non-breathable materials—pilots can even keep these trousers fully worn during extended breaks or interruptions on the ground. They can also be opened for ventilation (37), further enhancing comfort during rest periods. The trousers are then barely noticeable to the wearer. Figure 28 The same G-protective trousers are shown in a right-side view, and in Figure 29 Viewed from the left side. Here you can still see the supply hose 33 for the compressed air. Figure 30These G-protective trousers with open zippers (size 37) are shown with their backs lying loosely on the ground, and in Figure 31 These G-protective trousers with open zippers (size 37) can be seen with their front lying loosely on the ground.

[0044] To demonstrate that these G-protective trousers can also be worn over a flight suit, this is shown in Figure 32 The zipper 37 in front of the lower leg of the wearer's right leg is open here, revealing the trousers of the flight suit worn underneath. Figure 33 The image shows how the G-protective trousers look over the flight suit with closed zippers (size 37).

[0045] Finally, the Figure 34The G-protective trousers are worn by a pilot in full flight gear, namely over his flight suit and flight boots, so that the trouser legs of the G-protective trousers end over the shoes or boots, just like those of regular combat trousers. The zippers 37 run down the front of the trouser legs from the bottom up and could extend all the way to the groin area, passing under the handwarmer pockets 28, which can be folded to one side for this purpose and are held in the position shown here by means of Velcro fasteners. An alternative trouser model is also possible without fixed pockets, in which case the pockets are attached to the G-protective trousers solely with Velcro fasteners, allowing the pilot to adapt the choice of pocket to the daily mission. With these G-protective trousers, the pilot is transformed from the state described in... Figure 34shown ready at any time to enter the aircraft cockpit and take off and ascend for an operation.

[0046] These G-protective trousers can, in principle, be worn either under a flight suit and inside boots, or, as a special feature, over the flight suit and over the flight boots. This latter option is particularly convenient for the wearer, as it allows them to quickly remove the trousers for operational breaks and put them back on just as quickly, enabling them to be ready for the next operation within seconds. If the G-protective trousers are to be worn directly against the skin with only very light underwear, they are advantageously cut somewhat closer to the body than when worn over a flight suit. In the latter case, the G-protective trousers are cut relatively loosely to compensate for the bulk of the flight suit.

[0047] Regarding the care of these G-protective trousers, it's worth noting that they are very easy to wash and therefore easy to keep clean. They can be washed in a conventional washing machine. The exceptionally lightweight fabric, weighing only 121±5 grams per square meter, is dirt- and stain-resistant and can therefore be washed very easily, even if heavily soiled with oil or kerosene. As described, these G-protective trousers are suitable for military and civilian flight operations, especially for aerobatic flights. They are compatible with both Western and Eastern aircraft platforms, meaning they work with virtually any aircraft platform. Only the pressurization connectors need to be changed or adjusted depending on the aircraft platform. Number index

[0048] 1 Compartment 2 Airtight layer 3 Belt loops 4 Trouser material 5 Coccyx channel 6 Corners of the compartment 7 Textile strips 8 Waistband 9 Trouser hems 10 Crotch of the trousers 11 Lower edge of the crotch 12 Outer side of the trousers 13 Sack-like pocket as bladder 14 Textile pieces on the front of the trouser legs, free of compartments 15 Textile pieces on the back of the trouser legs, free of compartments 16 Cross area 17 Connecting channel 18 Groin channels 19 Lip openings 20 Indentation in the knee area 21 Ventilation veins with lip opening 22 Supply hose 23 Pilot trousers 24 Fitting 25 Rear compartments covering half of the buttocks 26 Bladders of the 5-blade G-protection trousers 27 Hose for the bladders 26 28 Thigh pockets 29 Viewing window in thigh pockets 30 Bladder in full-coverage G-protection trousers 31 Gap,30 bladder not covered 32 lateral hip areas 33 pressure hose full coverage G-protection trousers 34 pockets for outside of trouser legs 35 pockets for inside of trouser legs 36 zippers for closing the waistband 37 zipper along the trouser leg 38 second zipper for widening the waist of the G-protection trousers 39 Velcro strips on the outside of the lower legs of the trouser legs 40 cutouts on the conventional G-protection suit 41 zippers at the back of the lower legs of the trouser legs 42 flap on pocket 28 that can be closed with a zipper or Velcro fastener

Claims

1. Acceleration-protective trousers resp. G-protective trousers for pilots of aircraft in which high accelerations occur, at least parts of the G-protective trousers being of double-walled design and thus airtight compartments (1; 5 13, 17, 18, 25, 34, 35) are formed on the inside or outside, which can be subjected to acceleration-dependent air pressures, the G-protective trousers consisting throughout of an air-permeable, tear-resistant, fire-resistant and low-stretch synthetic textile material, and the G-protective trousers being provided in places with compartments (1; 5 13, 17, 18, 25, 34, 35) which can be inflated into an approximately circular cross-section by inflation via an outwardly leading hose (22) with raccord (24) for connection to an automatically meterable compressed air supply, so that these compartments act as muscles in that their two opposite edges can be drawn together and the adjoining textile fabric pieces (14, 15) can be stretched therewith, characterized in that these compartments (34, 35) extend continuously along the inner and outer sides of the trouser legs and are connected at the upper end of each trouser leg by a groin channel (18) extending along the lower region (11) of the groins, and the compartments (34) on the outer sides of the trouser legs extend further upwardly from the groins and terminate towards the lower abdomen in a respective bag-like bladder (13) while on the rear side of the trousers, in the region of the cross (16) of the wearer, they communicate with each other via a connecting channel (17) and from this a coccyx channel (5) branches off downwards and extends between the buttocks cheeks of the wearer in the direction of the crotch, the compartments (1; 5 13, 17, 18, 25, 34, 35) communicate via at least one hose (22) with raccord (24) with an automatically meterable compressed air supply.

2. Acceleration-protective trousers resp. G-protective trousers according to claim 1, characterized in that the compartments (1; 5 13, 17, 18, 25, 34, 35) are sealingly lined on the inside with an airtight elastomeric rubber material (2) so that they can be inflated into an approximately circular cross-section and then act as muscles which pull together their two opposite edges and thus the adjacent pieces of textile material (14, 15).

3. Acceleration-protective trousers resp. G-protective trousers according to claim 1, characterized in that the compartments (1; 5 13, 17, 18, 25, 34, 35) are traversed by an elastically expandable loose elastomeric air tube through which they can be inflated into an approximately circular cross-section, so that these compartments act as muscles which pull together their two opposite edges and thus the adjacent pieces of textile fabric (14, 15).

4. Acceleration protective trousers resp. G-protective trousers according to one of the preceding claims, characterized in that the textile fabric consists of fully synthetic, antistatic, hard-wearing and low-stretch yarn blends with aramid fibers having a weight per unit area of not more than 130 grams / m2, with an air permeability according to DIN EN ISO 9237 of up to 500 l / m2 x s min and a tear strength according to ISO 13934-1 of up to 2000 N / 5 cm.

5. Acceleration protective trousers resp. G-protective trousers according to one of the preceding claims, characterized in that the trouser legs of the G-protective trousers are each provided on the front side with a zipper (37) which can be opened from bottom to top and closed from top to bottom, so that the two trouser legs can be opened up to approximately the groin area and so that the G-protective pants can be put on over a pilot's suit and over the donned pilot's boots of a wearer when the zippers (37) are open and can be worn functionally after closing the zippers (37) and can be taken off again over the pilot's boots after opening the zippers (37).

6. Acceleration protective trousers resp. G-protective pants according to one of the claims 1 to 4, characterized in that the trouser legs of the G-protective pants are each provided on their inner side with a zipper (37) which can be opened from the bottom to the top and closed from the top to the bottom, for leaving the front side of the trouser legs free for positioning pockets or tactical equipment, so that the two trouser legs can be opened from these zips (37) to approximately the groin area and so that the G-protective pants can be put on over an aviation suit and over the donned aviation boots of a wearer when the zips (37) are open and can be worn functionally after closing the zips (37) and can be taken off again over the aviation boots after opening the zips (37)7. Acceleration protective trousers resp. G-protective trousers according to one of the preceding claims, characterized in that in each case a compartment (34) acting as a contracting muscle extends in the form of a channel from the vicinity of the waistband (8) laterally outwards down to the trouser hems (9), and in each case a similar compartment (35) extends along the inner sides of the trouser legs from the crotch down to the trouser hems (9), and these compartments (25) are each connected at the top to the outer compartments (34) via a respective last channel (18), single-layer, thin and air-permeable and continuous textile strips (14, 15) remaining free on the front and rear sides of the trouser legs, the front strips (14) being divisible over their entire length by a respective zip fastener (37).

8. Acceleration protective trousers resp. G-protective trousers according to one of the preceding claims, characterized in that on each side of the pants a seat compartment (25) extends from the lateral hip region horizontally along the waistband (8) on the rear side towards the cross region (16), for covering the outer half of the two buttocks of the wearer, and the two buttocks compartments (25) are connected with a connecting channel (17), from which a coccyx channel (5) with a width of 2 cm to 6 cm extends downwards from the center of the back of the waistband by at least 20 cm, for printing the buttocks, but without a dangerous "air cushion effect" in case of ejection seat actuation.

9. Acceleration-protective trousers resp.G-protective trousers according to one of the preceding claims, characterized in that the outer compartments (34) extending along the outer sides of the trouser legs extend at waist level into a bag-like pocket extending towards the front center of the pants as a bladder (13), for forming one bladder each for pressurizing the lower abdomen of the wearer in the inflated state.

10. Acceleration-protective trousers or G-protective trousers according to one of the preceding claims, characterized in that the inflatable compartments (5, 13, 17, 18, 25, 34, 35) extend over the two outer buttock halves of the pants, the lower abdominal region below the waistband (8) and along the outer and inner sides of the trouser legs and the groin region.

11. Acceleration protective trousers resp. G-protective trousers according to any of the preceding claims, characterized in that the G-protective trousers comprise ventilation veins (21) extending along the compartments (1; 5 13, 17, 18, 25, 34, 35) on that side which is intended to lie opposite the body, and in that these ventilation veins (21) have holes with closing lips (19), via which compressed air can flow into the interior of the G-protective trousers in a finely metered manner for cooling the body surface of the wearer of the G-protective trousers.

12. Acceleration protective trousers resp. G-protective trousers according to one of the preceding claims, characterized in that a pocket (28) with a viewing window (29) is provided on each of the front sides of the thighs, in that this pocket (28) is sewn to the trouser leg along its outer and upper edge while the lower and inner edges are held to the trouser leg solely by means of hook-and-loop fasteners (38), so that the pocket (28) can be folded down outwardly to release the zipper (37) extending underneath it, and the pocket (28) can be opened at its lower edge by means of a flap (42) with a zipper or hook-and-loop fastener.

13. Acceleration protective trousers resp. G-protective trousers according to one of the claims 1 to 9, characterized in that a pocket (28) with a viewing window (29) is provided on each of the front sides of the thighs, in that this pocket (28) is held on the trouser leg solely by means of Velcro fasteners (38), and the pocket (28) can be opened at its lower edge by means of a flap (42) with a zipper or Velcro fastener.