MXPA99001629A - Clamp structure in the form of tears and an extreme cover built for air and muel shock absorber - Google Patents

Abstract

The present invention relates to a clamping ring in combination with an air spring and springs having a pair of opposed end members axially aligned for movement in relation to each other on the shaft and a flexible sleeve projecting between the end members and forming an internal pressurizable chamber therebetween, at least one of the end members having an outer clamping surface, the clamping ring is characterized in that it comprises: an outer surface substantially parallel to the axis projecting between the opposite end members and an inner surface oblique to the outer surface, the inner surface being the sealing surface of the clamping ring which folds against the outer clamping surface of the limb

Description

CLAMP STRUCTURE IN THE FORM OF TEAR AND AN EXTREME COVER BUILT FOR AIR SHOCK ABSORBER AND TTTüT.T.Tgf; BACKGROUND OF THE INVENTION Technical Field The invention relates to air actuators and more particularly to adapted fastening means, for securing a resilient elastomeric sleeve member to at least one of the relatively rigid end caps, at least one end of the Built-in actuator as in an air damper and springs. Specifically, the invention relates to a clamp structure for an air actuator and / or air damper and springs employing annular recesses or indentations on a conically tapered region in the end caps to form a series of clamping areas with the intercalated sleeve member sealingly securing the sleeve therebetween, when a clamping ring with a currentilinear shape of minimum strength, this is tear or triangular with a rounded right triangle with smooth inner contact surfaces, is folded over. Background Information Pneumatic structures such as actuators and air springs and springs have been used by many for various purposes. The air actuator usually consists of a bellows or flexible rubber sleeve containing a supply of compressed fluid and a supply to increase or decrease the compressed fluid therein. The flexible sleeve is formed of a flexible elastomeric material that often contains reinforced cords, wherein the flexibility of the material allows a first end cap to move axially relative to another end cap held within the ends of the sleeve as it is changed. the amount of compressed fluid. Since the air actuator is located between a moving or operable object and typically a fixed object, the moving object moves in correlation with this axial movement. Since pneumatic dampers are commonly referred to as air dampers and springs, the construction is similar with a bellows or flexible rubber sleeve containing a supply of compressible fluid. However, the air spring and springs have one or more movable pistons with respect to the flexible sleeve. The piston causes compression and expansion of the fluid within the entire sleeve as the sleeve is stretched or retracted, respectively, thus absorbing shock loads and / or damping vibrations. The flexible sleeve is formed of a flexible elastomeric material containing reinforcing cords and this allows the piston to move axially relative to another piston or end cap held within the open ends of the sleeve. One application for an air damper and springs is with motor vehicles where the damper provides cushioning between moving parts of the vehicle, primarily to absorb shock loads imparted to the vehicle axles by wheels that strike an object on the road or fall in a depression. In any of air actuators or air springs and springs, the ends of the sleeves are sealingly connected with the opposite end caps or the opposite piston and end cap, respectively and are always one of the important aspects and main to produce a maintenance-free and efficient air damper or actuator. A problem with certain shock absorbers or air actuators is the ineffective sealing and / or fastening of the flexible sleeve to the end caps resulting in a lack of an air tight seal. Another problem and related to existing shock absorbers and air actuators is that ineffective fastening and / or sealing often results in either or both failure of the sleeve to remain clamped and / or break or tear and thus failure of the sleeve.

Another problem with existing air actuators and dampers is the ability to hold and secure the flexible sleeve to accept high pressures in the fluid pressure chamber within the flexible end-capped sleeve. Another problem with existing air actuators and shock absorbers is that the cutting edge exposed at the end of the elastomeric sleeve of the air damper or actuator, will engage the body of the sleeve as it advances on the piston or end cap in conditions of an excessive blow causing excessive wear to the flexible sleeve. Another problem with existing dampers and air actuators are edges in the clamping ring or surrounding parts that are not smooth or radiated, to provide a surface that does not excessively abrade or tear the flexible sleeve. Another problem with existing shock absorbers and air actuators is the inability to force or flow sufficient rubber from the sleeve into the slots in either or both the clamping ring and the end cap as required for sufficient clamping to occur. Another and that is a problem related to existing air springs and dampers is the lack of an interference fit between the ring and the end cap. Another and that is a problem related to existing air springs and dampers is the lack of a sufficient area of stress on the interface of the ring end cap in which the tension and stress in the ring is distributed. Another and that is a problem related to existing air actuators and dampers is a non-optimal force distribution between the ring and the end cap. Another and that is a problem related to existing air actuators and dampers is the insufficient sleeve displacement during folding. Another problem with existing air actuators and dampers is that the failure of a component end seal in the sleeve sandwich between the clamp ring and the end cap or the failure of the end cap or piston is typically the result when excessive pressure occurs and it is less convenient against a trapping of the side wall of the sleeve. Another problem with existing air springs and dampers is the ineffective hold by the clamping areas, the rubber being forced into the slots in either or both the clamping ring and the end cap, as required for a high seal. effective pressure. Another problem with the existing air actuators and dampers and in particular the clamping ring, is that the clamping ring will move in its clamped position under dynamic conditions, causing movement of the elastomeric material held between them tending to loosen the sealing coupling and deterioration of the integrity of the clamp and cause leakage eventually and fails. This ring movement is especially critical during the shake or tumble or crush stroke. Another problem with the existing air actuators and dampers and the clamping of the ends of elastomeric sleeves to the piston member and / or end cap is to hold a tight seal sufficiently to withstand high fluid pressures contained in the fluid chamber without leakage premature or trapped, even when experiencing severe movement of air damper and springs and exposed to arduous environments in the lower part of the body of a vehicle. Another problem with the existing air shocks and dampers and the clamping of the ends of elastomeric sleeves to the piston member and / or end cap is the time-consuming, labor-intensive and costly process of creating grooves / indentations and / or projections both on the outer diameter of the end caps and / or pistons and the clamping rings, to ensure that the flexible rubber sleeve does not slide out from between the end caps and / or the piston and the ring. Some examples of air actuators and dampers and end seal devices are illustrated in the following patents described below: U.S. Pat. No. 3,788,628 discloses a system of the pneumatic shock absorber type, which includes a structure for anchoring the inner ends of a flexible bearing sleeve. The sleeve is placed between surfaces characterized by having a saw shape with a circumferential groove and rib on an inner circumferential surface and two ribs on an outer circumferential surface. Opposite sides of the slots converge at predefined angles with pre-determined and corresponding radii of curvature, the combination of which provides a clamping action for holding the flexible sleeve firmly in place by the saw design, in cooperation with the coupling recess of the ring and the sleeve flange.

The U.S. Patent No. 3,870,286 refers to a shock absorber with fluid wherein the ends of the rolling sleeve are held by annular clamping rings which engage against the internal surface of the sleeve. The clamping ring holds the rolling sleeve to the operating cylinder with the clamping ring containing an annular groove type deformation whereby the rolling sleeve is held in place by virtue of this design in the form of an interacting groove, in combination with the force of clamping exerted by the ring. The U.S. Patent No. 4,489,474 relates to means for connecting a flexible tubular member with a piston, which includes a recess near the end of the piston that is secured to a flexible member. The flexible member is wrapped on and around a ring-shaped fixture, which holds the flexible member to the piston. The piston comprises a recess extending circumferentially adjacent its end with the flexible sleeve positioned and substantially filling the recess of the piston. The ring-shaped fitting is a conventional upset ring and the end portion of the flexible member is cut from the portion extending from the piston ring with the flexible member that substantially fills the recess of the piston shoulder.

The piston employs a serrated edge to assist in holding the flexible member. The U.S. Patent No. 4,457,692 discloses a structure for sealing two members, one of which has a cylindrical surface that holds the seal, wherein a seal lip is provided to lean against the second member. A cylindrical surface supports the seal comprising a hollow cylindrical body having a lip that extends outwardly from the body with an elastomeric band that encircles the body to hold it firmly in place. The cylindrical surface contains a recess extending circumferentially around the surface and receiving a projecting coupling element of the seal extending from the inside diameter of the cylindrical body. The U.S. Patent No. 4,573,692 discloses a structure for sealing two members, one of which has a cylindrical surface that holds the seal, wherein a seal lip is provided to bear against the second member. A cylindrical surface supports the seal comprising a hollow cylindrical body having a lip that extends outwardly from the body with an elastomeric band that encircles the body to hold it firmly in place. The cylindrical surface contains a recess extending circumferentially around the surface and receiving a projecting coupling element of the seal extending from the internal diameter of the cylindrical body. The U.S. Patent No. 4,629,170 relates to a pneumatic spring with a pair of chambers formed by a pair of membranes that are sealingly connected with an axially spaced retainer and piston, wherein the axial end of the membrane is compressed between a surface with a serrated saw. a solid member and a retaining ring wherein the ring may be upset, adjusted or otherwise squeezed to produce radial compression against the axial ends of the flexible membranes. British Patent No. 199,789 discloses a metal clamping band that holds a diaphragm and forces it against a tapered end portion of a tubular member. The U.S. Patent No. 4,718,650 shows an air damper and springs, wherein the ends of the flexible sleeves are connected to the seal surfaces of a pair of axially spaced pistons by crimped and upset fastening rings. Piston clamping surfaces are formed with saws to help retain the elastomeric material when they are forced by the clamping rings.

The Patents of the U.S.A. Nos. 4,899,995 and 4,852,861 show the use of a fastening ring having a centrally located recess, which aligns with an outwardly extending projection formed on the seal surface of the piston and end member so as to place the clamping ring on the piston or end member. A pair of tightening areas are formed on opposite sides of the projection, by projecting out rings or annular surfaces on the piston seal surfaces and / or end member. These rings form the tightening areas or zones in cooperation with the inner annular surface which projects axially from the clamp ring on opposite sides of the concave recess. Although each of the devices described in these patents satisfactorily perform their intended function, it has been found that clamping and bending are not always sufficient to prevent failure of the sleeve-lid interface and particularly to avoid clamping / folding failure (against bellows). or failure of the sleeve, that is, tearing or bursting of the sleeve fabric). SUMMARY OF THE INVENTION Objects of the invention include providing an improved sleeve end cap interface and structures for air actuators or dampers and springs having end caps spaced axially at opposite ends, with a flexible elastomer sleeve projecting therebetween and clamped against the respective end caps by a clamping ring to form a fluid tight seal therebetween and to provide an interposed pressure chamber. A further object of the invention is to provide an improved end cap-sleeve interface and structure that reduces or eliminates fastening failures such that the failure of the total air actuator is reduced. A further object of the invention is to provide an improved end cap-sleeve structure and interface where greater gender displacement occurs in the folded area thereby reducing or eliminating clamping failure. A further object of the invention is to provide an improved end cap-sleeve interface and structure, wherein the interface improves the retention power of the sleeve or bellows within the fold. A further object of the invention is to provide an improved end cap-sleeve structure and interface, which strives to reduce the failure of the air actuator to only sleeve or bellows failure.

A further object of the invention is to provide an improved end cap-sleeve structure and interface, which provides interference between the ring and the end cap instead of spacing as found in the prior art. A further object of the invention is to provide an improved end cap-sleeve structure and interface, which provides a greater area of stress or tension, thus reducing stress and stress in the ring. A further object of the invention is to provide an improved end cap-sleeve structure and interface, which provides a new and improved forced distribution resulting in a reduction in ring tension and stress, increased gender displacement and reduction or elimination of the fold failure. A further object of the invention is to provide an improved end cap-sleeve structure and interface, wherein the retaining ring is of a self-locking design. A further object of the invention is to provide this improved end cap structure wherein the clamping surface for the end cap includes concave or female annular grooves, separated by projections to facilitate efficient clamping of the elastomeric material therebetween and to alter the direction of the reinforcing cords contained within the elastomeric sleeve to further increase the clamping effect of the ring, and this construction locates the clamping ring on the seal surface of the end cap in position form. A further object of the invention is to provide an improved end cap-sleeve structure and interface, wherein the clamping ring and the clamping surface of the end cap are generally parallel in nature, but are of a generally tapered configuration , such that the end cap is of a generally conical shape while a cross section of the retaining ring is of a straight triangle or tear shape in general, such that the two parts correspond and fit together. A further object of the invention is to provide an improved end cap structure wherein a clamping ring is stressed to facilitate efficient clamping of the elastomeric material between the seal surface in the end cap and the clamping ring. A further object of the invention is to provide an improved air cushion or actuator that is designed to gravitate towards a sidewall burst rather than a seal failure or end component, when excessive pressure occurs within the fluid pressure chamber. . A further object of the invention is to provide this improved end cap structure wherein annular expansion grooves are formed between annular projections on the seal surfaces of the end cap to allow elastomeric material to flow. A further object of the invention is to provide annular grooves designed to receive and maintain the sleeve better than prior art designs. A further major object of the invention is to provide a clamping ring having a smooth continuous internal cylindrical surface that provides less expensive clamping rings than those used to date with recesses or shaped interior surfaces. A further object of the invention is to provide an improved end cap-sleeve structure and interface that is usable with current folding equipment. An additional object of the invention is to provide an improved end cap-sleeve structure and interface with the above improved features at the same cost as current prior art air actuators. A further object of the invention is to provide an improved end cap-sleeve structure and interface that is capable of retroactive modification to existing components that are currently employed under standard and well-known operating conditions. A further object of the invention is to provide all the foregoing objects and advantages as well as others that are apparent to a person skilled in the art of the same invention. These objects and advantages are obtained by the improved air actuator of the invention, the general nature of which can be established which includes an exterior surface and an interior surface. The outer surface is substantially parallel to the axis extending between the opposite end members. The inner surface is oblique to the outer surface, the inner surface is the sealing surface of the fastening ring that folds against the end member. BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of the invention, illustrative of the best way in which the applicants have contemplated applying the principles, is established in the following description and is illustrated in the drawings and is indicated in a particular and distinctive manner and establishes in the attached claims. Figure 1 is an elevation view of the improved end cap structure that is incorporated within an air actuator with cut-out and sectioned portions; Figure 2 is an enlarged perspective view of the fastening ring of Figure 1; Figure 3 is a greatly enlarged fragmentary sectional view showing a clamping ring holding one end of the elastomeric sleeve against the seal surface of the improved end cap; Figure 4 is an enlarged sectional view of the interference fit of the air actuator of Figure 1; and Figure 5 is an enlarged sectional view of the adjustment with spacing of an air actuator of the prior art. Similar numbers refer to similar parts through the drawings. DESCRIPTION PE A PR FAIR MODE The improved air spring and damper of the invention is illustrated in Figure 1, and is generally indicated at 10. This air damper and springs 10 can alternatively be any other type of air actuator thereby bringing two End caps instead of an end cap and piston are employed as is well known in the art. In total, the improved air spring and damper 10 is illustrated in a position at rest in Figure 1, which is a perspective view of the air spring and springs, with an exploded portion to show the fastening ring and cover Improved end as discussed below. As will be clear to a person skilled in the art after reading the following, the improved clamping ring and the receiving surface as described below can be employed in either an air spring and springs or an air actuator. In the case of the air actuators, the actuator usually consists of a flexible rubber hose or hose of similar construction or identical to that of an air damper and springs as described below.This bellows or flexible rubber sleeve contains a supply of compressed fluid and a supply for increasing or decreasing the fluid therein compressed.The flexible sleeve is formed of a flexible elastic material as described below and often contains reinforcing cords as described below, wherein the flexibility of the material it allows a first end cap as described below with reference to the air springs and springs to move axially relative to another end cap of construction similar to the first end cap as the amount of the compressed fluid is changed. these end caps are clamped inside the ends of the sleeve to define the fluid chamber compressed Typically, the air actuator is positioned between a movable or operable object and typically a fixed object, wherein the fixed object moves in correlation with the axial movement that is provided by the air grabber. In general, the air actuator functions to cushion this movement, absorbing shock loads imparted to the air actuator. Regarding the modalities shown in Figure 1, the device is an air damper and springs instead of an air grabber, although as noted above, the invention is apllied to both, since every one requires clamping rings and at least one end cap. As for these air springs and springs, the sonussion is similar to the air actuator since a bellows or flexible rubber sleeve contains a supply of compressible fluid. However, the air damper and springs replace one of the end caps with at least one movable piston with respect to the flexible sleeve. The piston causes compression and expansion of the fluid within the sleeve as the sleeve is stretched or retracted, respectively, thereby absorbing shocks and / or shock-absorbing vibrations. The air cushion and springs 10 as illustrated in Figure 1, includes axially spaced end members consisting of an improved end cap 11, and an improved piston 12. A flexible sleeve 13 of elastomeric material contains internal reinforcing cords that they project between the end cap 11 and the piston 12, which securely engage within the open ends of the sleeve 13 by the improved clamping rings 14. Once fully assembled, the sleeve 13 and the end members 11 and 12 form an internal fluid pressure chamber 15 which is subjected to Pressurized with a compressed fluid, to thereby provide a shock absorbent or damped system that serves to absorb shock loads and dampen vibrations. Specifically, this lies as the piston 12 causes compression and expansion of the fluid within the sleeve, as the sleeve is stretched or retracted, respectively, thereby absorbing these shock loads and / or damping these vibrations imparted to the shafts. of the vehicle when the wheel hits an object on the road or falls into a depression, where the air extractor is used in a vehicle. According to one of the prismatic faces of the present invention, the improved clamping ring 14 is of a tear-like shape as shown more schematically in Figures 3 and 4. This improved form is in contrast to the clamping rings of the Standard pre-existing techniques, which are rectangular or in cross-sectional shape as shown in Figure 5, are smooth or radiated corners. Specifically, the clamping ring 14 is tear-shaped as illustrated in Figure 4, whereby the clamping ring and the cross-section insulate an outer surface 20 which is generally parallel and is the axis of motion that is projected between the clamping ring. end cap 11 and the piston 12, a radiated turn of 90 degrees 21, an upper surface 22, which is generally perpendicular to the surface 20, a rounded corner 23 of a radius substantially less than 90 degrees, a tapered sap 24 which taper at an angle between the direction of the surfaces 20 and 22, and a curved main base surface 25 that is preferably a curve that exceeds 180 degrees. The main curve 25 can alternatively be a first curve greater than 90 degrees coupled with a 90 degree curve, whereby a short section can appear between them of a flat configuration. The resulting transverse sesssion shape of the clamping ring 14 is that of a tear are a large base of a rounded design. Accordingly, another of the features of the present invention, each of the improved end cap 11 and the improved piston 12 includes a seal and sleeve surface that is tapered, such that the end cap 11 and the piston 12 they have something of a conisa shape. This seal surface 30 is in contrast to the seal surface of the previous teasin which is generally planar to define a piston or generally sill end cap (this is illustrated in Figure 5). The seal surface 30 which is shaped to be shaped is the tear-shaped fastening ring 14 also includes in the most preferred embodiment, a plurality of annular grooves 31 with a plurality of projections 32 which are projected annularly therebetween. When assembling, the end of the flexible sleeve 13 is sealably held in an air-tight relationship in general to the seal surface 30 on the end cap 11 or the piston 12 by the smooth inner surface 24 of the clamping ring 44, which is then protruded or otherwise squeezed and folded to seal the sleeve and seal the seal surface 30. The result of this upsetting is the forcing of the rubber sleeve 13 into the annular grooves 31 to fill the grooves completely and to squeeze the sleeve 13 between the inner surface 24 of the clamping ring 14 and the seal surface 30 of the end cap 11 or piston 12. Any strips within the sleeve 13 are deformed and profiled by the grooves 31. As a result, sleeve knots Rubber bands are deformed bands are formed in grooves 31, which astute to prevent the rubber from retracting from the grooves. In agreement they are one of the main sarasteristisas of this invention, the resulting seal has an interference fit between the ring and the piston or end cap, thus preventing the ring from slipping or slipping off. This interference fit is clearly illustrated in Figure 3, where the uppermost end 35 and the lowermost end 36 of the end cap 11 project outwardly from the end cap 11, a distance radially farther from the end. innermost point of the clamping ring 14, which is substantially adjacent to the point of connection of the surface 24 with the curve 25. This ring interference is critical since the prior art simply provides an insulated ring spacing after folded holding.

In agreement with another of the prinsipal sarasteristisas of the invention, the unique teardrop design results in a greater gender displacement resulting in this way in improved retension power of the bellows or cuff fold resulting in a redussion or elimination of the fault of bending or folding. Clearly, Figures 3 to 5 show a displacement of major musho genus radially to the inside by the single teardrop-shaped clamp 14, since the clamping ring of the previous teasin is illustrated in Figure 5. According to another of the In this invention, the unitary design of the teardrop-shaped clamping member 14 provides a unique forced diagram of the bending force in the sleeve 13 from the clamp 14 against the end cap 11 or the piston 12.

Instead of the forces of the previous technique that were totally radial in nature except for at least radiated edges, the tear-shaped clamping ring 14, provides unique normal and resultant force components that are angled in accordance with the single taper of the surface 24. In additional compliance with the features of this invention, the tear-shaped clamping ring 14 and the sealing surface corresponding 30 provide an increased or increased area of stress.

This area of unrequited effort results in a redussing of the tension and effort of the ring. Specifically, tests were performed in which it was determined that the area of effort of a standard ring is approximately .020 in the surtared area, while the area of the ring of tears is approximately .043 in the area added. Of additional soundness is another sarasteristisation of the invention, during pressurization of the inner fluid pressure chamber 15, the flexible sleeve 13 is wrapped around the surfaced surface as illustrated best in Figure 3, to create a normal force in the bellows are the result of air pressure inside the bellows, thus creating a self-sustaining mesanism. The self-tapping mesanism prevents the clamping ring 14 from slipping off of the end cap 11 or piston 12, resulting in a rupture of the seal between the flexible sleeve 13 and the end cap 11 or piston 12. In short, the structure of improved teardrop fastener and tapered end cap for an air damper and springs, creates a pleated design that will cause sleeve or bellows failure only or substantially improve the retention power of the bellows fold. In addition, the improved invention is capable of being used in astute folding equipment and is no more suspect than current technology. Also, the invention involves a design that can be modified retroactively with existing components. Some of the main advantages of the present invention are that it provides a much stronger holding power in the rubber bellows than a normal ring, since tests have shown that bursting results are typically at least twice as great as a typical ring This improved holding power is the result of a greater gender shift, component / ring interference in opposition to spacing, larger area of stress and a self-wicking mechanism. Although the previous re-srillion fully illustrates an air damper and springs, it is easy to understand that the "air damper and springs" thesis is equally applicable to air sizers or similar pneumatic tires. According to this, the improved air and springs damper is simplified, provides an effective, safe, economical and efficient device that achieves all the objectives listed, eliminates difficulties that are ensuered by previous devices and solves problems and obtains new results in the teas In the previous breakdown, some terms have been used for brevity, clarity and compression; but there will be no need to imply limiting inessees, hence beyond the requirement of prior consent, since these terms are used for descriptive purposes and are intended to be widely considered. Even more, the dismemberment and iluetrasión of the invention are by way of example and the alsanse of the invention is not limited to the exastos details shown or dessritos. Having now dessrito the sarasteristisas, dessubrimientos and prinsipios of the invention, the form in which it is built and uses the shock absorber of air and springs, the facesteristisas of the sontrussión and the new and useful advantageous results obtained; the new and useful structures, devices, elements, assemblies, parts and combinations are established in the appended claims.

Claims (19)

1. CLAIMS 1.- A clamping ring to be used is an air damper and springs having a pair of opposite end members aligned axially for movement in relation to each other on the shaft, the clamping ring is sarasterized because it assumes: an outer surface substantially parallel to the axis that is projected between the opposite end members; and an interior surface that is close to the outer surface, the inner surface is the sealing surface of the fastening ring that folds against the end member.
2. 2.- The ring of suction of sonformity are the reivindisasión 1, sarasterizado because the inner surface is at an angle referensia to the outer surface.
3. 3. The clamping ring according to claim 1, sarasterized because the clamping ring also includes radiated edges between the inner and outer surfaces.
4. 4. The clamping ring according to claim 1, characterized in that the clamping ring also includes an upper surface that is substantially perpendicular to the inner surface.
5. 5. The ring of suction of sonicity are the claim 1, sarasterized because the clamping ring further includes a curve substantially ninety degrees between the inner surface and the upper surface.
6. 6. The clamping ring according to claim 5, sarasterized because the clamping ring also includes a surva less than ninety degrees between the inner surface and the upper surface.
7. 7.- The ring of suction of sonformity are the reivindisasión 6, sarasterizado because the ring of subjection also includes a greater surva to feel oshenta degrees between the inner surfaces and the outer surface.
8. 8 - The clamping ring according to claim 1, sarasterized because the clamping ring also includes a curve greater than 180 ° between the inner surface and the outer surface.
9. 9. An air damper and springs, sarasterized because it somersates: a pair of end members spaced axially and movable towards and away from each other, at least one of the end members has a seal surface that tapers in recession to the shaft between the end members; a flexible sleeve which is projected between the end members and which forms an internal pressurizable sámara; and a clamping ring that corresponds to each seal surface, each clamping ring having a tear-shaped cross-section.
10. 10. The air damper and springs are the claim 9, sarasterized because the clamping ring includes a surface substantially parallel to the seal surface.
11. 11. The air damper and springs according to claim 9, characterized in that the clamping ring includes an internal surface oblique to the shaft between end members.
12. 12. The air damper and springs according to claim 9, characterized in that each clamping ring includes an outer surface parallel to the axis between end members and an oblique inner surface.
13. 13. The air damper and springs according to claim 9, sarasterized because the seal surface includes a plurality of annular grooves.
14. 14. The air damper and compliance springs are claim 12, which is sarasterized because the clamping ring includes an upper surface that is substantially perpendicular to the interior surface.
15. 15. The air damper and springs according to claim 14, characterized in that the clamping ring further includes a curve substantially 90 ° between the outer surface and the upper surface.
16. 16. The air damper and springs according to claim 15, characterized in that the clamping ring further includes a curve less than ninety degrees between the inner surface and the upper surface.
17. 17. The air damper and springs in accordance with claim 16, sarasterized because the ring of subjection also includes a surva greater than 180 ° between the inner surface and the outer surface.
18. 18. The air damper and springs are the claim 9, sarasterized because the clamping ring provides interferensia of clamping ring.
19. 19. The air damper and springs of claim 9, characterized in that each end member has a conical shape.