• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method for producing a cylinder housing (2) of a printing cylinder (1) having a support structure (5) and a composite structure (6) made of a plastic reinforced with threads. The support structure (5) is formed by an inner tube (8) and fastening arrangements (12, 13) supported against each other in the axial direction. The composite structure (6) is continuously formed between the mounting assemblies (12, 13) and respectively held on the two mounting assemblies (12, 13). First, the threads are biased even before solidification of the plastic and subsequently further biased therefrom formed cured composite structure (6) and held in this position. Furthermore, those threads of the composite structure (6), which have an extending between the two fastening arrangements (12, 13) extending direction, formed between the thread beginning and end of the thread endless.
    公开号:AT516065A1
    申请号:T50514/2014
    申请日:2014-07-23
    公开日:2016-02-15
    发明作者:
    申请人:Mark Hydraulik Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a cylinder housing for a pressure cylinder in lightweight composite construction, a cylinder equipped with such a cylinder pressure cylinder and a method for producing a cylinder housing in lightweight composite construction for a printing cylinder to achieve a longer life even with frequent load changes, as in the claims 1 , 13 and 14 is described.
    A generic trained cylinder housing for a pressure cylinder in lightweight composite construction has become known from EP 0464202 A1. The cylinder housing includes a support structure having an inner tube having axially spaced apart first and second ends and a longitudinal axis extending between the two ends. In the region of the first end is a bottom-side fastening arrangement and in the region of the second end, a rod-side fastening arrangement is arranged, wherein the two fastening arrangements are supported in the axial direction against each other on the inner tube. Furthermore, the cylinder housing comprises a composite structure made of a plastic reinforced with threads. The composite structure is disposed on an outer surface of the inner tube and extends axially between the bottom-side attachment assembly and the rod-side attachment assembly. Furthermore, the composite structure is held in each case on the two fastening arrangements, wherein those threads which have an extension direction running between the two fastening arrangements are in each case deflected in the direction of their extension in the region of the two fastening arrangements.
    From DE 10 2004 008 523 B4 a method for producing a printing cylinder and a piston rod for actuators or shock absorbers has become known. The cylinder housing is in the form of a lightweight composite construction and has a support structure comprising an inner tube having axially spaced-apart ends, and first and second end pieces, which are each arranged in the region of one of the ends of the inner tube. Furthermore, a composite structure of a plastic reinforced with threads is provided, which is arranged on an outer surface of the inner tube. This extends in the axial direction continuously between the first and second end pieces and is connected thereto. The piston rod has ends arranged on the end, between which extend a metallic inner draft tube and a thin-walled metallic outer barrel, wherein the metallic outer barrel is arranged concentrically to the metallic inner draft tube. Between the drawpipe and the running tube is further arranged a core of fiber-reinforced plastic, which is formed in the radial direction of tubular core halves or core parts. In this case, a first core part of the fiber-reinforced plastic and on the inside of the outer barrel another core part is also made of fiber-reinforced plastic mounted on the inner draft tube. In this case, such an outer dimension of the inner core part is selected that the outer core part pushed over and then a bonding of the two core parts can be done. Each of the metallic statements facing end portions of the inner draft tube and the outer barrel are welded to power transmission with these components. The entire power transmission takes place exclusively via the two welded to the metallic terminations tubes.
    No. 4,704,918 describes a lightweight, tension-compression and / or torsion bar in which connection parts are arranged at a distance from one another and between which a core component which bridges over the distance and is provided as a lightweight component is arranged. This assembly is wrapped over its entire length by a resin-reinforced fiber layer in the form of braided threads. In addition, an additional coating of a further plastic material may be applied to the outer surface. In this
    Manufacturing process, the thread or fiber braid is impregnated with resin before braiding. In this case, the entire operation is much more difficult because it always has to work with a thread material which is wetted or soaked with a not yet solidified resin.
    The object of the invention is to provide a cylinder housing for a pressure cylinder in lightweight composite construction, equipped with such a cylinder housing pressure cylinder and a method for producing a cylinder housing in lightweight composite construction for a printing cylinder, in which achieved a longer life even with frequent load changes can be.
    One of these objects of the invention is solved by the features of claim 1.
    The advantages achieved by the features of claim 1 are that by the targeted bias and thus achieved axial extent of the composite structure relative to the inner tube, a change in length occurring load changes can be avoided. Due to the applied axial prestressing force, the transmission of the axial forces between the two fastening arrangements takes place predominantly through those threads and / or filament bundles, which have an extensional direction extending between the two fastening arrangements in a predominant proportion. By this biasing and the associated change in length, a nearly to completely stretch-stiff composite structure is created so as to keep the two arranged at the ends of the inner tube and supported thereon mounting arrangements at a constant distance from each other. The inner tube serves on the one hand for sliding guidance of the piston and on the other hand for supporting the two fastening arrangements in the prestressed position against each other. By reducing and / or even avoiding relative displacements between the composite structure and the inner tube, there is no additional mechanical damage. Furthermore, relative displacements between the inner tube and the part of the fastening arrangement holding the threads, in particular the end piece, can also be avoided, as a result of which no wear-related phenomena occur at the mutual contact or guide surfaces. Thus, an unwanted relative movement between the composite structure and the inner tube can be avoided even with frequent load changes and / or high operating pressures.
    Also advantageous is a further embodiment according to claim 2, since thereby an even better grip of the deflected in the region of the two fastening arrangements threads and / or filament bundles can be achieved. In addition, so layers of threads and / or filament bundles can be created, which extend endlessly between the two mounting arrangements and in addition to the retaining elements not only deflected but also can be anchored.
    A further advantage is an embodiment according to claim 3, since in the region of the rod-side end of the cylinder housing sufficient clearance for the passage of the piston rod can be created. By providing its own components but also the attachment of an additional biasing device to a temporally upstream additional biasing operation can be done easier because the clamping device is mounted only in the final assembly.
    Due to the design according to claim 4, it is possible to provide a continuous, continuous cylinder chamber area in the region of the cylinder space and still a relative movement possibility between the tail and the inner tube is made possible.
    According to another embodiment according to claim 5 as an exact axial distancing of the bottom-side mounting arrangement is created by the tail of the rod-side mounting assembly on the inner tube. Thus, the subsequent application of the threads and / or filament bundles in a so-called winding process between the two spaced apart arranged mounting arrangements and even in this arrangement a sufficient thread tension can be applied without the two mounting arrangements can be moved towards each other.
    Also advantageous is a development according to claim 6, since the possibility is created to create between the end piece arranged and / or trained holding elements and the distance distanced in the axial direction connecting lug sufficient clearance for the arrangement of the deflected threads. This can be done unimpeded winding process and still serve below the radially projecting connection approach for the biasing operation for connection to the clamping elements.
    In the embodiment according to claim 7 it is advantageous that the possibility is created by the width of the axial gap in the axial direction to be able to apply the corresponding biasing force to the composite structure.
    Through the development according to claim 8 is achieved so that a precisely predefined bias of the composite structure can be set. Thus, not only the height of the biasing force can be set, but also an overload of the composite structure can be avoided.
    Due to the construction according to claim 9, an exact centering of the support element in the region of the cylinder space of the inner tube can be created. In addition, but also the mutual support of the support member on the inner tube in the axial direction can be achieved for the subsequent application of the biasing force.
    Also advantageous is an embodiment according to claim 10 or 11, as a sufficient preload force can be constructed with simple mechanical standard components. But this can also be exercised on the composite structure in particular in a multiple arrangement of the clamping elements a uniformly distributed over the circumference acting biasing force.
    According to an embodiment as described in claim 12, such a stable cohesion of the composite structure between the two mutually spaced mounting arrangements can be created. By the uninterrupted arranging at least the longitudinal positions and the deflection of the same in
    In the region of the two mutually distanced mounting arrangements, a high mechanical tensile strength of the composite structure can be achieved.
    However, a further object of the invention is independently achieved by the features of claim 13. The advantages resulting from the combination of features of this claim are that such a unit can be created which has a high axial rigidity even at high pressures and frequent load changes and thus a safe and long service life is possible.
    The object of the invention is, however, independently solved by a method for producing a cylinder housing in lightweight composite construction for a printing cylinder according to the features indicated in claim 14. The resulting from the combination of features of this claim advantages are that a relative change of the inner tube relative to the inner tube a change in length occurring load changes can be avoided by the targeted bias and thus achieved axial extent. Due to the applied axial prestressing force, the transmission of the axial forces between the two fastening arrangements takes place predominantly through those threads and / or filament bundles, which have an extensional direction extending between the two fastening arrangements in a predominant proportion. By this biasing and the associated change in length, a nearly to completely stretch-stiff composite structure is created so as to keep the two arranged at the ends of the inner tube and supported thereon mounting arrangements at a constant distance from each other. The inner tube serves on the one hand for sliding guidance of the piston and on the other hand for supporting the two fastening arrangements in the prestressed position against each other. By reducing and / or even avoiding relative displacements between the composite structure and the inner tube, there is no additional mechanical damage. Thus, an unwanted relative movement between the composite structure and the inner tube can be avoided even with frequent load changes and / or high operating pressures.
    Furthermore, a procedure according to the features specified in claim 15 is advantageous because even before the solidification of the plastic to form the plastic matrix of the composite structure, the individual threads and / or thread layers can be brought to a same bias to each other and thus due to the winding process manufacturing differences in length individual threads and / or filament bundles between the two mounting arrangements can be compensated. As a result, overloading of individual threads and / or bundles of filaments can subsequently be avoided. By targeted biasing prior to solidification of the plastic so the individual threads and / or filament bundles in the individual longitudinal positions are aligned and arranged uniformly to each other and thus formed a more compact reinforcing layer through the threads in the composite structure.
    A further advantageous procedure is described in claim 16, whereby a sufficient clearance for the passage of the piston rod can be created in the region of the rod-side end of the cylinder housing. As a result, the components required for both preload processes can be better coordinated with each other.
    Also advantageous is a variant of the method according to claim 17, because such a stable cohesion of the composite structure between the two mutually spaced mounting arrangements can be achieved. As a result of the uninterrupted arrangement of at least the longitudinal layers and their deflection in the region of the two mutually distanced mounting arrangements, a high mechanical tensile strength of the composite structure can be achieved.
    Also advantageous is a variant of the method according to claim 18, because such an even better hold of the deflected in the region of the two fastening arrangements threads and / or filament bundles can be achieved. In addition, so layers of threads and / or filament bundles can be created, which extend endlessly between the two mounting arrangements and in addition to the retaining elements not only deflected but also can be anchored.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    1 shows a printing cylinder in diagrammatically simplified representation.
    Figure 2 shows the support structure of the cylinder housing, in axial section and diagrammatically simplified representation.
    FIG. 3 shows the support structure of the cylinder housing according to FIG. 2, but with a composite structure arranged thereon, in axial section and diagrammatically simplified illustration; FIG.
    4 shows a printing cylinder with a cylinder housing, in axial section and diagrammatically simplified representation.
    5 is a cylinder housing with an additional biasing device for the support structure prior to solidification of the plastic, in axial section and diagrammatically simplified representation.
    Fig. 6 shows a partial section of the printing cylinder in the region of its rod-side mounting arrangement with another embodiment of the clamping device, in axial section.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    In FIG. 1, a working cylinder in the form of a pressure cylinder 1 is shown in simplified form, which comprises a cylinder housing 2 in a lightweight mixing manner and a piston 3, not shown here but shown in FIG. 4, with a piston rod 4 connected thereto. The printing cylinder 1 may be, for example, a hydraulic cylinder, pneumatic cylinder or hydropneumatic cylinder. Furthermore, the printing cylinder 1 may be formed as a double-acting cylinder, differential cylinder, synchronous cylinder, tandem cylinder, single-acting cylinder, plunger cylinder or telescopic cylinder.
    One aspect of the present invention may be the cylinder housing 2 alone. A further aspect of the invention may be the pressure cylinder 1 with such a cylinder housing 2 and the piston 3 accommodated therein with piston rod 4. However, another aspect of the invention may also be the method for producing the cylinder housing 2, in order to be able to produce this with a long service life even with frequent load changes. In particular, to increase the life even operational length changes can be reduced or even avoided.
    The printing cylinder 1, in particular its cylinder housing 2, comprises a support structure 5 and a composite structure 6 arranged and held thereon.
    2 to 4, the cylinder housing 2 is shown to form the printing cylinder 1 in various views and sections to better describe its structure. For the sake of clarity, the presentation of standardized sealing elements, the supply and discharge of the pressure medium as well as other details has been dispensed with.
    The cylinder housing 2 is composed or formed from a plurality of different components, in which case a so-called lightweight composite construction is to be realized. In this case, especially in the cylinder tube of the cylinder housing 2, a high weight saving can be achieved and still operate such cylinder housing 2 even at relatively high working pressures and / or to be able to train in large size and despite the mixed construction to achieve high rigidity in the axial direction.
    A cylindrical space 7 bounded by the supporting structure 5 serves in a known way for receiving the piston 3 and the piston rod 4 connected thereto.
    The support structure 5 comprises an inner tube 8, which has a first end 9 and a second end 10 spaced apart in the axial direction. In most cases, this is a metal tube which, on its surface facing the cylinder chamber 7, has a surface quality correspondingly designed for guiding and sealing. The inner tube 8 can also be formed from a different material, in particular a plastic or other high-strength materials.
    Between the two axially spaced apart ends 9, 10 extends a longitudinal axis 11, which defines a center of the inner tube 8 and the support structure 5. Furthermore, it is provided here that in the region of the first end 9 of the inner tube 8, a bottom-side fastening arrangement 12 and in the region of the second end 10 a rod-side fastening arrangement 13 is arranged. The two mounting arrangements 12, 13 are supported in the axial direction against each other on the inner tube 8 and are arranged spaced apart by this at a predetermined distance.
    Furthermore, the cylinder housing 2 comprises the composite structure 6 of a reinforced with unspecified threads and / or layers of thread plastic. For the sake of simplicity, the composite structure 6 is shown as a single structure, which, however, is formed by threads and / or thread layers which are arranged at different distances from one another and / or from different ends, which subsequently solidifies after application or winding of the threads into a component held together by the plastic become. The filament (s) are preferably selected from a material selected from the group of carbon, aramid, glass, ceramic, basalt.
    Thus, the composite structure 6 can also have a plurality of layers of threads and / or filament bundles / filament layers which are arranged or aligned with one another in a very different manner. It can be aligned with respect to the longitudinal axis 11 of each of the layers with a winding orientation of about 90 °. These all-round fenden threads form a position which opposes a radial pressure from the inside a high resistance and absorbs such forces. This results in a radial support of the inner tube 8 on the outer surface 14. This layer is usually also the first or innermost layer of the composite structure. 6
    In order to be able to keep the two fastening arrangements 12, 13 positioned in the axial direction relative to one another at a certain distance, further thread layers can be provided which form a type of longitudinal coil in the form of a helical shape. In this case, the individual threads or bundles of filaments to form the longitudinal coil in an angular range between 0 ° and 30 °, in particular between 0 ° and 10 ° with respect to the longitudinal axis 11 inclined to this running on the side facing away from the cylinder chamber 7 side of the inner tube 8 or be provided. In order to achieve an additional, radial hold or cohesion of the threads forming the longitudinal winding and / or the bundle of threads, the uppermost layer may likewise again have a winding orientation in which the threads are arranged at approximately 90 ° with respect to the longitudinal axis 11 both adjacent to one another and one above the other can. In this case, at least the threads and / or bundles of filaments of the longitudinal layer are aligned continuously between the two fastening arrangements 12, 13 and connected to these, so as to be able to define a predetermined distance between the two fastening arrangements 12, 13 as a function of the inner tube 8. Those threads and / or filament bundles, which have an extension direction running between the two fastening arrangements 12, 13, are respectively deflected in their extension direction and thus in their longitudinal course in the region of the two fastening arrangements 12, 13. Furthermore, at least those threads of the composite structure 6 which have an extension direction running between the two fastening arrangements 12, 13 are preferably designed to be endless between their thread beginning and thread end.
    The thread (s) and / or thread bundle (s) may already be coated with a plastic material that has not yet solidified when applied to the support structure 5. After application, the not yet solidified plastic material is cured and thus formed a solid plastic matrix, which embeds the thread or layers of thread and is thus reinforced.
    It should be noted that the longitudinal layers or longitudinal windings described above and the transverse windings running at an angle of approximately 90 ° with respect to the longitudinal axis 11 can also be arranged or provided several times one above the other in an alternating sequence. As the topmost or outermost layer, a peripheral winding layer is preferably provided, which encloses an angle of approximately 90 ° with respect to the longitudinal axis 11 with this. As protection of the composite structure 6, a protective tube or the like may be arranged as the outer layer. It would also be possible, at least one of the outermost layers of threads and / or filament bundles of a different material such. Aramid, basalt or similar wear-resistant materials to form. Furthermore, however, a mat, a knitted fabric, a braid or a knit made of high-strength materials could also be applied to the not yet solidified plastic material as the outer layer and bonded to the composite structure 6 during the curing process.
    As already described above, the two fastening arrangements 12, 13 are preferably positively supported on the inner tube 8 against each other. For this purpose, in the region of the outer surface 14 both in the area of the first end 9 and the second end 10 of the inner tube 8, a partial section with a smaller outer diameter can be formed. On this section or these sections, the mounting arrangements 12, 13 are each slidably received on the sections and supported against each other in the axial direction. This results in a clear distancing of the two mounting arrangements 12, 13 in a precisely predetermined distance from each other. For the assembly process or the application of the threads and / or filament bundles to form the composite structure 6, a releasable adhesive can additionally be introduced between the inner tube 8 and the fastening arrangements 12 and / or 13.
    In this prepositioned position of the two fastening arrangements 12, 13 relative to the inner tube 8, the application and arrangement of the composite structure 6 in a working step called a winding process then takes place. In order to achieve a better anchoring of the deflected in the region of the two mounting arrangements 12, 13 threads and / or filament bundles, distributed over at least one of the two mounting arrangements 12 and / or 13 each over its circumference several projecting beyond the outside, rod-shaped Flalteelemente 15 are arranged or be trained. Thus, the flap elements 15 may be e.g. be formed by its own components which are attached or held on the mounting assemblies 12 and / or 13. Another possibility is to form the flap elements 15 as an integral part of the fastening arrangements 12 and / or 13. The creasing elements 15 serve to hold the composite structure 6, in particular the threads and / or filament bundles embedded therein, in their deflection region around the creasing elements, whereby the two fastening arrangements 12, 13 are interconnected in the axial direction and held against each other at a predetermined distance.
    4, 13- in the present exemplary embodiment, the rod-side fastening arrangement 13 comprises an end piece 16 and a tensioning device 17. The tensioning device 17 has a support element 18 and at least one cooperating therewith Clamping element 19 on. This training described in more detail below but could also be used in the bottom-side mounting assembly 12.
    At the end piece 16 of the fastening arrangement 13, the previously described flap elements 15 are arranged for deflection and axial longitudinal fixing and / or flattening of the threads or bundles of threads. In the initial state before preloading, both the end piece 16 and the support element 18 are supported on the inner tube 8 in the axial direction against the other fastening arrangement arranged on the inner tube 8 in the region of the opposite end 9 - in the present exemplary embodiment the bottom-side fastening arrangement 12. Furthermore, the filaments of the composite structure 6 deflected in their extension direction are held on the end piece 16, whereby, as already described above, this preferably takes place on the sheet elements 15.
    In the present exemplary embodiment, the rod-side fastening arrangement 13 comprises the end piece 16 and the tensioning device 17 cooperating therewith. Furthermore, the end piece 16 is also arranged on the outer surface 14 of the inner tube 8 facing away from the longitudinal axis 11. Before the application of the axial prestressing on the composite structure 6, the end piece 16 is supported on a shoulder 20 formed on the inner tube 8. This axial support takes place in the direction of the oppositely disposed bottom-side mounting arrangement 12. In order to exert an axial bias on the composite structure 6, the tail 16 is further guided on the side facing away from the shoulder 20 side on the inner tube 8 adjustable.
    This makes it possible to bias the composite structure 6 in the axial direction relative to the support structure 5, in particular of the inner tube 8, in the axial direction and / or to shift relative thereto. The base-side fastening arrangement 12 is supported in the present embodiment in the axial direction in the region of the first end 9 of the inner tube 8 at this against the rod-side mounting assembly 13. The end piece 16 of the rod-side fastening arrangement 13 can be displaced or adjusted relative to the inner tube 8 at least in the axial direction to the direction away from the bottom-side fastening arrangement 12. Since the composite structure 6 is connected to or held by both the bottom-side fixing structure 12 and the end portion 16 of the rod-side fixing structure 13, an axial bias can be performed.
    In order to be able to produce a connection between the end piece 16 and the support element 18 of the tensioning device 17, the end piece 16 may have on its side remote from the composite structure 6 a connecting projection 21 preferably formed continuously over the circumference. The connecting lug 21 is arranged in the axial direction of the holding elements 15 on the side facing away from the composite structure 6 side and protrudes in the radial direction via a tubular base part of the end piece 16 via this. This connection projection 21 can furthermore also project beyond the inner tube 8 onto the side facing away from the composite structure 6.
    As described above, the support member 18 of the tensioning device 17 is supported on the inner tube 8 against the bottom-side mounting assembly 12 in the axial direction. For this purpose, the support element 18 may have a projecting into the inner tube 8 centering lug 22. The inner tube 8 has, in the region of its second end 10, a front end 23, which is preferably formed by an end face oriented in a vertical direction with respect to the longitudinal axis 11. At this front end 23, the support member 18 is supported with a support shoulder 24 in the axial direction adjacent thereto.
    Furthermore, seen in the axial direction opposite to the end piece 16 arranged or formed connection lug 21 on the support member 18, a separate flange 25 may be arranged or formed. Before the application of the bias is seen in the axial direction between the end piece 16, in particular its connecting lug 21, and arranged on the support member 18 or formed flange 25 is formed over the circumference continuously extending axial gap 26. The end piece 16, in particular its connection projection 21, can be seen supported on the support element 18 in the radial direction and thus guided in the axial direction.
    In order to exert an exactly predeterminable bias of the tensioning device 17 on the tail 16 of the rod-side mounting assembly 13, in the axial gap 26 and a spacer element 27 may be arranged. The spacer element 27 can serve to limit the relative displacement in the course of the bias between the holding element 15, in particular its connection projection 21, and the flange 25 in the axial direction.
    As already described above, the tensioning device 17 also comprises the at least one tensioning element 19. This makes it possible for the end piece 16, together with the composite structure 6 held thereon, to move relative to the inner tube 8 in the axial direction onto the support element 18 by means of the at least one tensioning element 19 to shift and pre-stress a predefined position. The at least one tensioning element 19 can further keep this relative biased position during the intended use.
    In the present embodiment, the at least one tensioning element 19 is formed by a plurality of screws distributed over the circumference. These screws pass through the flange 25 of the support member 18 and are connected to the end piece 16, in particular its connection lug 21. For this purpose, the connecting lug 21 of the end piece 16 may have internal threads corresponding to the screws.
    Regardless of this, it would also be possible to form the clamping elements 19 by threaded pins inserted into the end piece 16, which pass through the flange 25 of the support element 18. The application of the bias can be done by screwing nuts, which also the end piece 16 can be displaced together with the composite structure held thereon 6 relative to the inner tube 8 and thus biased.
    However, the tensioning element 19 could also be formed by differently acting components, such as eccentric tensioners or the like.
    FIG. 5 shows an optionally independent embodiment of a pretensioning device 28 for the composite structure 6 arranged on the support structure 5, again using the same reference numerals or component designations for the same parts as in the preceding FIGS. 1 to 4. To avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs. 1 to 4 or reference. The embodiment described here represents only one of many ways in which the filaments and / or filament bundles forming an endless winding of the composite structure 6 can additionally be prestressed in the area of at least one of the fastening arrangements 12, 13 prior to solidification of the plastic.
    As already described above, by biasing the cured composite structure 6, operational length changes of the cylinder housing 2 can be minimized, reduced or even avoided altogether. The arranged in the composite structure 6 threads and / or thread layers have a high tensile strength and optionally also a low elongation at tensile load. As well as those threads which have a predominantly extending between the attachment arrangements 12, 13 extending extension direction, not completely an exact linear axial arrangement, but preferably in approximately helical at a certain angle with respect to the longitudinal axis 11 in the region of the outer surface 14th the inner tube 8 are arranged to extend, it comes at high loads to operational length changes. This leads to an enlargement of the distance between the base-side fastening arrangement 12 and the rod-side fastening arrangement 13. This biasing of the composite structure 6 extending between the bottom-side fastening arrangement 12 and the rod-side fastening arrangement 13 takes place in the axial direction with respect to the inner pipe 8 with respect to the two ends 9, 10 mutually averted direction. By means of this biasing force acting in the axial direction, a position of the composite structure 6, in particular of the fastening arrangement 13, relative to the inner tube 8 is achieved. In this biased position of the composite structure 6, this is held relative to the inner tube 8. This biasing operation of the composite structure 6 takes place after the curing of the filament receiving and / or embedding plastic material.
    The pretensioning device 28 now serves, prior to solidification of the plastic to form the composite structure 6, at least those threads and / or filament bundles which have an extension direction running between the two fastening arrangements 12, 13 in the axial direction with respect to the inner tube 8 with respect to the Both ends 9, 10 facing away from each other direction against each other. Thus, due to the winding process for applying and / or arranging the threads and / or filament bundles, which have a extending between the two mounting arrangements 12, 13 extending direction, be biased. In addition, even different thread tensions of individual in the region of the holding elements 15 deflected threads and / or filament bundles can be better compensated. If this upstream additional biasing operation is completed and those between the two mounting arrangements 12, 13 extending arranged filaments and / or bundles of filaments to a uniform bias ver introduced, can then be solidified in this biased position of the threads of the plastic.
    Preferably, both the axial biasing of the threads prior to solidification of the plastic as well as the axial prestressing of the already solidified composite structure in the region of the rod-side mounting assembly 13. However, it would also be possible to perform only one of the biasing operations in the rod-side mounting assembly 13 and the Furthermore, it would also be conceivable to carry out both axial pretensioning processes in the region of the bottom-side fastening arrangement 12.
    The structure of the cylinder housing 2 corresponds to that structure, as it has already been shown and described in FIG. The only difference is that in the embodiment according to FIG. 5, the later-solidified plastic for forming the composite structure 6 has not yet solidified, and thus the individual threads and / or thread layers can be displaced relative to one another more easily.
    In the present embodiment, a support element 29 is arranged in the cylinder chamber 7 in the region of the second end 10. The support member 29 may protrude with an approach in the inner tube 8 and be supported with a unspecified shoulder at the front end 23 of the inner tube 8 in the axial direction against the first end 9. Subsequent to the support element 29, a clamping plate 30 can be arranged on the side facing away from the cylinder chamber 7 side. The clamping plate 30 projects beyond the support element 29 in the radial direction. The clamping plate 30 may further have approximately the same outer dimension as the connecting lug 21 of the end piece 16.
    Furthermore, the support element 29 has an axial extension which projects beyond the front end 23 of the inner tube 8 to the side facing away from the cylinder chamber 7 side. As a result, a gap is formed between the connection projection 21 of the end piece 16 and the clamping plate 30. To bridge this gap can be arranged in this a spacer sleeve 31 and a spacer ring. Furthermore, a plurality of circumferentially distributed in the clamping plate 30 and in the spacer sleeve 31 and extending in the axial direction through holes formed. These can be penetrated by screws, whereby the end piece 16, in particular its connecting lug 21, usually via clamping of the spacer sleeve 31 with the clamping plate 30 can be fixedly connected.
    Furthermore, arranged in the clamping plate 30 and held there adjusting elements 32 may be provided, which are seen in the axial direction supported on the support element 29 fitting. The one or more adjusting elements 32 may be formed for example as ball pressure screws, which are connected via a threaded arrangement with the clamping plate 30. However, the adjusting element (s) 32 could also be provided by other mechanical components, or by means of pressure-actuated adjusting elements, e.g. hydraulic or pneumatic control elements, be formed.
    By adjusting - in the present embodiment by screwing - the adjusting elements 32 in the axial direction in the direction of the cylinder chamber 7, a support thereof takes place on the support element 29, which in turn is supported on the inner tube 8 in the axial direction fitting. Due to the further preferred positive connection of the adjusting elements 32 with the clamping plate 30, this is displaced relative to the side facing away from the cylinder chamber 7 side relative to the inner tube 8. Since the clamping plate 30 is connected with the interposition of the spacer sleeve 31 with the end piece 16, in particular its connection projection 21, viewed in the axial direction by the screws, there is a displacement of the end piece 16 relative to the inner tube 8 on the first end of the 9 or Cylinder room 7 averted side.
    It would also be possible, however, by means of an externally applied axial biasing force, e.g. by at least one fluid-operated cylinder to bias the composite structure 6 with respect to the inner tube 8 and keep fixed in this biased position. For the annealing process, the at least one pressure-medium-actuated cylinder can be removed so as not to expose it to too high a temperature load during the tempering process.
    Thus, an additional upstream bias can be applied to the threads or the thread structure. This upstream bias can be applied advantageously, but is not absolutely necessary.
    In order to avoid a direct support of the adjusting elements 32 on the support element 29, 30 may be arranged between the support member 29 and the clamping plate 30, an additional pressure plate 33 for abutting engagement of the adjusting elements. The pressure plate 33 can be kept exchangeable and have a greater pressure resistance and / or hardness than the support element 29.
    In addition, a sealing element 34 can be arranged even in the outer peripheral region between the end face of the connecting lug 21 of the end piece 16 and the facing end face of the spacer sleeve 31. The sealing element 34 may e.g. be formed by an O-ring or the like. And serves, as long as the plastic material is not cured, to prevent penetration thereof between the two end faces. These could otherwise be glued together after the curing process.
    If this additional upstream preloading process has been carried out, the plastic for the formation of the composite structure 6 can now be cured in this preloaded state. This is preferably done by a tempering process which is generally used.
    Once this curing and / or solidification of the plastic has taken place, the pretensioning device 28 can be removed from the cylinder housing 2. On the presentation of additional components in order to create the same with the biasing device 28, a rotatable mounting of the support structure 5 during the winding process of the threads, has been omitted for the sake of clarity.
    It is possible to a certain extent that due to the applied bias a displacement of the end piece 16 relative to the axial direction with respect to the inner tube 8 on the side facing away from the first end 9 side is done. Then, the end of the end piece 16 facing the first end 9 would no longer be supported in the axial direction against the bottom-side fastening arrangement 12 on the inner tube 8. This forming in the course of the first bias gap or space between the end piece 16 and the support surface of the inner tube 8 could for example be filled with the plastic material and this axial support effect can be achieved.
    After removal of the biasing device 28, a certain slight elastic recovery of the end piece 16 against the acting biasing force in the direction of the first end 9 will take place. The further bias by means of the clamping device 17 described above then takes place for the current use of the cylinder housing 2 in the intended use as a printing cylinder. 1
    Since the material of at least those threads and / or filament bundles which have an extending between the two mounting arrangements 12, 13 extending direction, also have a certain elastic strain, can after removal of the first biasing force by the elastic return of the threads on the now solidified plastic matrix a compressive force can be built up by the contraction. When renewed subsequent biasing operation, the threads can be re-acted upon with an axial biasing force. Depending on the extent or the size of the two biasing forces, the "inherent rigidity" and, consequently, the relative movements of the composite structure 6 and the end piece 16 with respect to the inner tube 8 can be greatly minimized or even completely avoided. Otherwise, microcracks could result in the solidified plastic matrix as a result of these permanent changes in length, which can lead to weakening even as far as failure and breakage of the printing cylinder 1, in particular its cylinder housing 2.
    If, for example, the preload force prior to solidification of the plastic material is selected to be higher than the subsequent preload force, a certain pressure range remains as a safety cushion for normal operation of the impression cylinder 1 without additional pressure peaks or overloads. In this case, the pre-load force predetermined for the current operation can be selected to be so high that virtually no or no operational changes in length occur any more. Only when the operating pressure and / or unforeseen impact loads are exceeded can there be a change in length, which, however, is still within the elastic properties of the composite structure 6, in particular its thread material. Only at a further exceeding of this predetermined upper limit can lead to a failure.
    FIG. 6 shows another embodiment of the tensioning device 17, which may be independent of itself, for the composite structure 6 arranged on the support structure 5, again using the same reference numerals or component designations as in the preceding FIGS. 1 to 5 for the same parts. To avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs. 1 to 5 or reference. The tensioning device 17 is in turn part of the cylinder housing 2 and, consequently, also of the printing cylinder 1.
    The cylinder housing 2 shown here for forming the printing cylinder 1 in turn comprises the support structure 5 and the composite structure 6 arranged and held there. Since only a partial section of the cylinder housing 2 and the impression cylinder 1 formed therewith is shown, this is shown in the region of the rod-side attachment arrangement 13 , Also in this embodiment, the clamping device 17 is formed or arranged in the region of the rod-side fastening arrangement 13, which serves for the bias of the composite structure 6 for the intended use.
    Of the support structure 5 here only a part of the inner tube 8 is shown with its front end 23 in the region of its second end 10. In turn, the tail 16 is slidably mounted on this in the axial direction. In turn, one or more flattening elements 15 for deflecting the filaments and / or bundles of filaments can be arranged on the end piece 16, as has already been described in detail above. Depending on the possible previous bias before curing or solidifying the plastic structure is a compulsory supporting or concern of the tail 16 in the direction of the opposite bottom-side mounting assembly 12 on the shoulder 20 of the inner tube 8 is no longer necessarily given.
    The support member 18 is supported with its support shoulder 24 adjacent in the axial direction at the front end 23 of the inner tube 8 in the direction of the bottom-side mounting assembly 12. Furthermore, the support element 18 can in turn have the centering projection 22 projecting into the inner tube 8.
    The end piece 16 projects beyond the front end 23 of the inner tube 8 to the direction away from the bottom-side fastening arrangement 12. The support element 18 has, in the region of its end remote from the base-side fastening arrangement 12, a further support shoulder 35, which in the present exemplary embodiment is still covered by the end piece 16 or projected beyond it in the axial direction. The further support shoulder 35 forms a support surface 36, which is preferably aligned in the vertical direction with respect to a longitudinal axis 37. The first support shoulder 24 opposite arranged, further support shoulder 35 serves for the axial support of the clamping element 19 of the tensioning device 17th
    In contrast to the previously designed as screws clamping elements 19, the clamping element 19 is formed by an annular or sleeve-shaped component in this embodiment shown here. The ring-shaped here clamping element 19 has on its outer circumference on an external thread, which engages in a formed on the end piece 16 internal thread. The two cooperating threaded parts thus form a threaded arrangement 38. The component thus formed can also be referred to as a threaded ring with external thread.
    In the installed state of the clamping element 19, this may be stored or guided on its side facing the longitudinal axis 37 both in the radial direction and in the axial direction on the support element 18. If the two threads of the thread arrangement 38 engage with one another, the clamping element 19 of its end face 39 facing the bottom-side fastening arrangement 12 comes into contact with the support surface 36 of the further support shoulder 35 of the support element 18. By corresponding, mutual displacement, in particular the screwing of the clamping element 19 by means of the threaded arrangement 38 in the
    End piece 16 takes place at mutual contact of the end face 39 on the support surface 36, the biasing of the composite structure 6 described above.
    In the present exemplary embodiment, the support element 18 has an outer dimension which corresponds approximately to the inner dimension of the end piece 16 arranged on the inner tube 8. Thereby, a radial mutual support of the end piece 16 in that axial section take place, which projects beyond the front end 23 on the side facing away from the bottom-side mounting arrangement 12 side.
    The clamping element 19 may preferably project beyond the support element 18 in the radial direction. The part of the end piece 16 having the internal thread can have an axial extension for carrying out the clamping operation, so that the axial gap 26 described above is formed between the end face 39 and the end piece 16 before the beginning of the pretensioning operation and when the end face 39 abuts against one another. This makes it possible to bias the composite structure 6 accordingly over the relative to the inner tube 8 in the axial direction adjustably guided tail 16, as has already been described above. To limit the biasing path for producing the prestressed state of the composite structure 6 for the operating condition of the printing cylinder 1, the previously described spacer element 27 can again be arranged in the axial gap 26, which has not been illustrated in FIG. By arranging the spacer element 27, mutual prestressing can be established in the case of completely abutting components in order to prevent inadvertent loosening of the screw connection of the threaded arrangement 38.
    But it would also be possible to dispense with the arrangement of the spacer element 27, and to secure the annular clamping element 19 by means of an additional securing device against accidental loosening during operation. This can e.g. by a partial radial expansion of a portion of the external wind of the annular clamping element 19.
    Furthermore, additional, but not shown, guide elements for guiding the piston rod 4 can be arranged or formed on the support element 18. Furthermore, non-illustrated sealing elements can be arranged or provided to achieve on the one hand a seal between the piston rod 4 and the support member 18 and on the other hand between the support member 18 and the inner tube 8 and / or the tail 16.
    Furthermore, it is shown here that in the end piece 16, for example, a connection bore for receiving a connection piece or for connection to a supply line for the pressure medium is arranged. This connection bore opens into a feed channel 40 which is formed on the inner surface of the end piece 16 and preferably runs circumferentially. The feed channel 40 usually has a larger or longer axial extent than a distribution channel 41 arranged opposite the feed channel 40 in the support element. Also this distribution channel 41 may be circumferentially formed on the outside of the support member 18 over the circumference. Starting from the distribution channel 41 of the support element 18, a plurality of connecting channels 42 distributed over the circumference can be arranged or formed, which connect the partial cylinder space formed between the piston 3 and the rod-side fastening arrangement 13 to the distribution channel 41. Thus, through the support member 18 through a flow connection can be formed both for the supply and for the removal of the pressure medium.
    As a result of the above-described axial extent of the supply channel 40 and the distribution channel 41, a reliable supply of the pressure medium into the distribution channel 41 can always be ensured even with a relative displacement of the end piece 16 relative to the support element 18. Due to the relative axial displacement of the end piece 16 with respect to the support element 18 to achieve the previously described bias of the composite structure 6, the oppositely disposed channels, namely the feed channel 40 and the distribution channel 41, remain in at least partially overlapping position.
    The embodiments show possible embodiments of the cylinder housing 2 and the printing cylinder 1 equipped therewith, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments are possible with each other and this variation possibility due the doctrine of technical action by objective invention in the skill of those working in this technical field is the expert.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description. All statements of value ranges in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    Above all, the individual in Figs. 1; 2, 3, 4; 5; 6 embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the printing cylinder 1, in particular its cylinder housing 2, as well as its components have been shown partially uneven and / or enlarged and / or reduced.
    REFERENCE SIGNS LIST 1 pressure cylinder 29 support element 2 cylinder housing 30 clamping plate 3 piston 31 spacer sleeve 4 piston rod 32 actuator 5 support structure 33 pressure plate 6 composite structure 34 sealing element 7 cylinder chamber 35 further support shoulder 8 inner tube 36 support surface 9 first end 37 longitudinal axis 10 second end 38 thread assembly 11 longitudinal axis 39 end surface 12 bottom side Fastening 40 feed channel
    Order 41 Distribution channel 13 Rod-side attachment 42 Connecting channel arrangement 14 Outer surface 15 Retaining element 16 End piece 17 Clamping device 18 Supporting element 19 Clamping element 20 Shoulder 21 Connecting projection 22 Centering projection 23 Front end 24 Supporting shoulder 25 Flange 26 Axial gap 27 Distance element 28 Pretensioning device
    权利要求:
    Claims (18)
    [1]
    1. Cylinder housing (2) for a pressure cylinder (1), in particular for a hydraulic cylinder, pneumatic cylinder or hydropneumatic cylinder in lightweight composite construction comprising a support structure (5) with an inner tube (8), which inner tube (8) spaced apart in the axial direction first and second ends (9, 10) and a longitudinal axis (11) extending between the two ends (9, 10), and a base-side attachment arrangement (12) arranged in the region of the first end (9) and one in the region of the second End (10) arranged rod-side mounting arrangement (13), wherein the two mounting arrangements (12, 13) in the axial direction against each other on the inner tube (8) are supported, a composite structure (6) made of a thread-reinforced plastic, the composite structure (6) on a Outer surface (14) of the inner tube (8) is arranged, in the axial direction continuously between the bottom-side mounting arrangement (12) un d of the rod-side fastening arrangement (13) extends and is respectively held on these fastening arrangements (12, 13), wherein those threads which have an extending between the two fastening arrangements (12, 13) extending direction, respectively in the region of the two fastening arrangements (12, 13) are deflected in their direction of extent, characterized in that at least one of the two fastening arrangements (12, 13) comprises an end piece (16) and a tensioning device (17) with a support element (18) and at least one tensioning element (19) and both End piece (16) and the support member (18) in the axial direction against the inner tube (8) in the region of the opposite end (10, 9) arranged other fastening arrangement (13, 12) on the inner tube (8) are supported, wherein in their Extending direction deflected threads of the composite structure (6) are held on the end piece (16), and the end piece (16) together with the composite held thereon Structure (6) relative to the inner tube (8) by means of the at least one clamping element (19) in the axial direction on the support member (18) is biased into a position and held in this biased position.
    [2]
    2. Cylinder housing (2) according to claim 1, characterized in that distributed over at least one of the two mounting arrangements (12,13) each over its circumference several projecting beyond its outer side, rod-shaped holding elements (15) are arranged around which holding elements (15 ) in each case the threads of the composite structure (6) are deflected in their direction of extent.
    [3]
    3. cylinder housing (2) according to claim 1 or 2, characterized in that the rod-side mounting arrangement (13) comprises the end piece (16) and the clamping device (17).
    [4]
    4. Cylinder housing (2) according to one of the preceding claims, characterized in that the end piece (16) in the region of the longitudinal axis (11) averted outer surface (14) of the inner tube (8) is arranged thereon.
    [5]
    5. cylinder housing (2) according to one of the preceding claims, characterized in that the end piece (16) before applying the axial bias of the composite structure (6) in the axial direction on a inner tube (8) formed shoulder (20) is supported and on the from the shoulder (20) averted side on the inner tube (8) is adjustably guided.
    [6]
    6. Cylinder housing (2) according to any one of the preceding claims, characterized in that the end piece (16) on its side facing away from the composite structure (6) has a preferably continuous over the circumference formed connecting lug (21).
    [7]
    7. Cylinder housing (2) according to any one of the preceding claims, characterized in that in the axial direction between the end piece (16) and one on the support element (18) arranged or formed flange (25) is formed over the circumference continuously extending axial gap (26) ,
    [8]
    8. cylinder housing (2) according to claim 7, characterized in that in the axial gap (26) a spacer element (27) is arranged.
    [9]
    9. cylinder housing (2) according to any one of the preceding claims, characterized in that the supporting element (18) in the inner tube (8) projecting into the centering projection (22) and with a support shoulder (24) at a front end (23) of the inner tube (8) is supported thereon in the axial direction.
    [10]
    10. Cylinder housing (2) according to any one of the preceding claims, characterized in that the at least one clamping element (19) is distributed by a plurality of circumferentially spaced screws which pass through the flange (25) of the support element (18) and with the tail ( 16), in particular its connecting lug (21) are connected.
    [11]
    11. Cylinder housing (2) according to one of claims 1 to 6 or 9, characterized in that the clamping element (19) is formed by a threaded ring with external thread, which engages with its external thread in an end piece (16) arranged internal thread, and the Clamping element (19) with one of the bottom-side mounting arrangement (12) facing end face (39) on one of these facing further support shoulder (35) of the support member (18) is supported in the axial direction.
    [12]
    12. Cylinder housing (2) according to any one of the preceding claims, characterized in that at least those threads of the composite structure (6) having an extending between the two mounting arrangements (12, 13) extending direction, are formed endlessly between the yarn beginning and end of the thread.
    [13]
    13. impression cylinder (1), in particular hydraulic cylinder, pneumatic cylinder or fly-drop pneumatic cylinder, with a cylinder housing (2) in lightweight composite construction, a cylinder housing (2) recorded piston (3) and connected to the piston (3) piston rod (4), characterized in that the cylinder housing (2) is designed according to one of claims 1 to 12.
    [14]
    14. A method for producing a cylinder housing (2) in lightweight composite construction for a pressure cylinder (1), in particular a hydraulic cylinder, pneumatic cylinder or hydropneumatic cylinder, wherein a support structure (5) comprising an inner tube (8), with spaced apart in the axial direction ends ( 9, 10), a base-side fastening arrangement (12) and a rod-side fastening arrangement (13), as well as a composite structure (6) is formed, and the bottom-side fastening arrangement (12) in the region of the first end (9) and the rod-side fastening arrangement (13 ) are arranged in the region of the second end (10) of the inner tube (8) and supported against each other on the inner tube (8) in the axial direction, and the composite structure (6) of threads and a plastic surrounding the threads predominantly formed and on an outer surface (14) of the inner tube (8) is applied, wherein the composite structure (6) in the axial direction continuously zw The bottom-side fastening arrangement (12) and the rod-side fastening arrangement (13) are designed to extend and are respectively held on the two fastening arrangements (12, 13), and those threads of the composite structure (6), which extend between the two fastening arrangements (12, 12). 13) extending extent direction, in each case in the region of one of the two fastening arrangements (12, 13) are deflected in their direction of extent, and then the threads surrounding the threads to a predominant proportion plastic, characterized in that between the bottom-side mounting arrangement (12 ) and the rod-side attachment assembly (13) extending composite structure (6) in the axial direction with respect to the inner tube (8) is biased in a direction with respect to the two ends (9, 10) facing away from one another in a position and held in this biased position.
    [15]
    15. The method according to claim 14, characterized in that prior to solidification of the plastic to form the composite structure (6) at least one of the two mounting arrangements (12, 13) in the axial direction with respect to the inner tube (8) with respect to the two ends (9, 10) is turned away from each other and thereby those threads which have a extending between the two mounting arrangements (12, 13) extending direction, are biased and then solidified in this biased position of the threads of the plastic.
    [16]
    16. The method according to claim 14 or 15, characterized in that both the axial biasing of the threads prior to solidification of the plastic and the axial prestressing of the already solidified composite structure (6) in the region of the rod-side mounting arrangement (13) is performed.
    [17]
    17. The method according to any one of claims 14 to 16, characterized in that at least those threads of the composite structure (6), which have an extending between the two fastening arrangements (12,13) extending direction, between the thread start and end of the thread are formed endless.
    [18]
    18. The method according to any one of claims 14 to 17, characterized in that those threads of the composite structure (6) having an extending between the two fastening arrangements (12, 13) extending direction, at least one of the two mounting arrangements (12, 13) arranged at this distributed over the circumference, as well as on the outside projecting, rod-shaped formed Flalteelemente (15) are deflected.
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    同族专利:
    公开号 | 公开日
    WO2016011471A1|2016-01-28|
    AT516065B1|2016-04-15|
    EP3172449A1|2017-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH464505A|1966-09-23|1968-10-31|Plast Anstalt|Glass fiber reinforced plastic pipe, and process for its manufacture|
    EP0044380A1|1980-07-19|1982-01-27|Felten & Guilleaume Energietechnik GmbH|Transmission shaft made of fibre-reinforced resin with end fittings fixed by winding and anchoring|
    DD207673A1|1982-06-11|1984-03-14|Heinz Heyna|METHOD AND DEVICE FOR PRODUCING CONICAL HOLLOW PROFILES|
    EP0464202A1|1990-01-25|1992-01-08|Hitachi Construction Machinery Co., Ltd.|Pressure vessel made of composite material|
    WO1993009932A1|1991-11-13|1993-05-27|Glombeck, Robert|Method and device for manufacturing an elongated piece from fibre-reinforced curable material|
    US5415079A|1992-05-13|1995-05-16|Hr Textron, Inc.|Composite cylinder for use in aircraft hydraulic actuator|
    EP2154328A2|2008-08-07|2010-02-17|Vetco Gray Inc.|Composite enhanced metallic drilling riser system|
    US4050359A|1975-09-04|1977-09-27|Brunswick Corporation|Hydraulic power trim and power tilt system supply|
    US4704918A|1985-02-19|1987-11-10|Kamatics Corporation|Composite material force or motion transmitting member|
    DE102004008523B4|2004-02-20|2007-02-01|Liebherr-Aerospace Lindenberg Gmbh|Method for producing a printing cylinder and piston rod for actuators or shock absorbers and method for their production|
    US20060016329A1|2004-07-26|2006-01-26|S.A. Robotics|Composite fluid actuated cylinder|CN106891544A|2017-04-28|2017-06-27|武汉科技大学|A kind of hydraulic cylinder of compound carbon fibers cylinder barrel|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50514/2014A|AT516065B1|2014-07-23|2014-07-23|Method for producing a cylinder housing of a printing cylinder|ATA50514/2014A| AT516065B1|2014-07-23|2014-07-23|Method for producing a cylinder housing of a printing cylinder|
    PCT/AT2015/050173| WO2016011471A1|2014-07-23|2015-07-22|Cylinder housing for a pressure cylinder and method for producing same|
    EP15756814.8A| EP3172449A1|2014-07-23|2015-07-22|Cylinder housing for a pressure cylinder and method for producing same|
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