EP0344233B1 - Drallorgan für das verspinnen von fasern zu einem faden - Google Patents

Drallorgan für das verspinnen von fasern zu einem faden Download PDF

Info

Publication number
EP0344233B1
EP0344233B1 EP88908667A EP88908667A EP0344233B1 EP 0344233 B1 EP0344233 B1 EP 0344233B1 EP 88908667 A EP88908667 A EP 88908667A EP 88908667 A EP88908667 A EP 88908667A EP 0344233 B1 EP0344233 B1 EP 0344233B1
Authority
EP
European Patent Office
Prior art keywords
channel
twister
passage
air channel
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88908667A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0344233A1 (de
Inventor
Karl Handschuch
Hans Rottmayr
Peter Artzt
Gerhard Egbers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0344233A1 publication Critical patent/EP0344233A1/de
Application granted granted Critical
Publication of EP0344233B1 publication Critical patent/EP0344233B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means

Definitions

  • the present invention relates to a swirl member for spinning fibers into a thread, with a through-channel for fiber material and with at least one air channel extending from the circumference of the swirl member into the through-channel for fiber material.
  • Known pneumatic swirl members essentially consist of a base body, a flow channel for fiber material, hereinafter referred to as a flow channel, and at least one air channel.
  • the air duct is located in the base body and extends from the circumference of the base body into the flow channel.
  • the air duct generally opens tangentially and at an oblique angle into the flow duct. If compressed air is applied to the air channel, an air swirl is created in the flow channel, which on the one hand gives the fiber material in the flow channel a pulling force into the swirl element and on the other hand a rotation (so-called injector effect).
  • the position of the air ducts relative to one another and to the through duct is of essential importance for the yarn quality (EP-OS 0.222.981). It is therefore important to ensure that the air ducts are accurate be introduced into the swirl element in the predetermined position and with the smallest possible tolerances.
  • the problem here is that the base body of the swirl member consists of a very hard material (eg ceramic) for wear reasons, which is very difficult to machine.
  • a certain ratio of length to diameter of the air duct is required, a certain minimum length of the air duct having to be observed so that a bundled air jet can be created.
  • a swirl member is shown in US-A-3,407,584.
  • the air duct is designed as a groove in a component, which is covered by another component so that a closed channel cross section is formed.
  • the air channel does not open into the flow channel for the fiber material, but into a chamber with a larger cross section than the flow channel.
  • a high degree of precision in the manufacture, in particular, of the mouth of the air duct is therefore not so important.
  • the object of the present invention is to provide a swirl member of the type mentioned which can be precisely manufactured in a simple and inexpensive manner.
  • the air duct is composed of elements, whereby the composite air duct is divided essentially transversely to the longitudinal axis. It has been shown that the division of the air duct enables inexpensive and precise manufacture to be achieved, and that additional shapes are also possible.
  • the hole closer to the flow channel is to be made in the hard material of the swirl element with exact position and tolerance, especially since the length of the hole is very short.
  • the shortest allowable length of this hole is reached if the division plane of the composite air duct is located directly in front of the inner wall of the flow duct without breaking through the inner wall of the swirl element. It is advantageous that the drill with the small diameter can be kept very short and thus, because of the short lever arm, only relatively small torques can cause the drill to "run" in the hard material of the swirl element. Commercially available drills can withstand these torques.
  • a favorable design is that the first element forming the composite air channel is the swirl element with a bore opening into the through-channel for fiber material and that another element forming the composite air channel in the form of a bushing is inserted into a bore of larger diameter concentric with this bore .
  • the bushing should be inserted right up to the bottom of the larger hole so that a gap-free transition from the bushing to the swirl element is created in the air duct and there is as little flow loss as possible.
  • the use of the bushing on the one hand enables the small diameter of the air duct to be lengthened and on the other hand realizes a variation in the inflow opening of the air duct. Both measures change the flow behavior of the air inside and after the air duct.
  • the material of the bushing can be the same as that of the swirl element or it can be a material that is easier to machine.
  • the bushing contains a through-hole, the mouth diameter of which corresponds essentially to the diameter of the hole in the swirl element opening into the through-channel for fiber material, this through-hole can be used as part of the air channel.
  • the bushing contains a through-hole whose mouth diameter differs from the diameter of the smaller of the two concentric holes. This allows a small lateral offset of the bushing in relation to the smaller of the two concentric bores without reducing the effective cross section of the air duct.
  • An effective extension of the thin air duct is achieved by aligning the through-bore of the bushing used with the bore in the swirl element opening into the through-duct for fiber material and thus forming a composite air duct.
  • the air duct should have a ratio of diameter to length of 1: 3 to 1:10.
  • the through bore of the bushing is advantageously designed such that the inflow opening of the assembled air duct tapers in a funnel shape.
  • bushings with different through holes and / or lengths are used for fiber material depending on the desired air flows in the flow channel.
  • the requirements of different spinning parameters such as, for example, the nature of the material to be spun, can be accommodated and the twisting in the through-channel can be influenced by varying the diameter, the shape and the length of the through-hole of the bushing.
  • With a detachable joining process it is also possible to convert the same swirl element by replacing the bushing.
  • the reduction in manufacturing accuracy is permissible if the diameter of the bushing is smaller than the diameter of the bore into which the bushing is inserted and the resulting space is filled with an adhesive. Adequate alignment of the parts of the air duct can be achieved by inserting a centering pin or the like into the assembled air duct during the bonding.
  • the passageway consists of several elements at its periphery in the region of the junction of the air duct, then a simple and inexpensive way of producing the swirl element is again achieved according to the task.
  • This division makes it possible to work the air duct from both sides when the swirl element is disassembled.
  • the air duct is arranged in a bushing which is inserted into the swirl element and extends into the through-duct, it is possible that different air duct shapes can be used in a simple manner by using different bushings.
  • the swirl element is essentially divided along its longitudinal axis, i.e. the swirl organ consists of e.g. two or three segments, it is possible that the air duct is arranged in one or more of the segments.
  • the cross-sectional area of the air duct increases at least partially starting from the circumference of the swirl member in the direction of the through-duct, advantageous flow conditions in the air duct and through-duct result.
  • This can be supported by changing the cross-sectional shape of the air duct. This means a change from a circular cross-section, for example, to an oval cross-section of the air duct, the oval cross-sectional area being larger than the circular cross-sectional area.
  • both cross-sectional shapes consist of a circular cross-sectional area, it means this is a conical or conical expansion of the air duct.
  • the cone angle is advantageously between 5 and 10 °.
  • the smallest diameter of the air duct should be between 0.6 and 0.2 mm. The best results can be achieved with a smallest diameter of 0.3 mm.
  • FIG. 1 there are two concentric bores 120 and 121 of different diameters in the swirl member 1, the bore 120 forming part of the air duct 12 and the swirl member 1 being one of the elements of the air duct 12.
  • the bore 120 which already has the required air duct diameter d, extends into a passageway 10 for fiber material, hereinafter referred to as passageway for short.
  • a hole 121 of larger diameter D concentric with the hole 120 extends with its base 123 up to close to the flow channel 10.
  • the bottom 123 of the bore 121 should extend to just in front of the inner wall of the swirl element 1, but must not break through, damage or weaken the wall of the flow channel 10 in such a way that it is broken or damaged when a bushing is inserted into the bore 121.
  • the socket 2, 3, 4, 5 or 6 represents another element of the swirl element 1.
  • FIG. 2 A front view of the swirl element 1 is shown in FIG. 2. It can be clearly seen from this that the axis 122 with the concentric bores 120 and 121 is arranged with a lateral offset to the axis 100 of the flow channel 10. This causes a tangential introduction of the air flow into the passage 10 and thus a good swirl formation of the air flow in the passage 10.
  • the lateral offset of the two axes 100 and 122 and the position not perpendicular to each other results in the location of the largest Approach of flow channel 10 and bore 121 is also in a lateral offset to the two axes 100 and 122.
  • the course of section II in FIG. 2 shows the longitudinal sections of FIGS. 1 and 3.
  • Fig. 3 shows a longitudinal section through the swirl element 1, in which a socket 2 is inserted.
  • the through bore 20 of the bushing 2 extends the effective length l k of the bore 120 by the amount of the length l B of the bushing to the new total length l g and thus results in the composite air duct (12).
  • the bottom 123 of the bore 121 must connect to the end face 21 of the bushing 2 as free of gaps as possible so that little flow losses occur in the assembled air duct 12.
  • each of the sockets 2, 3, 4, 5 and 6 care must be taken to ensure that the installation has a gap-free transition from the end face 21, 31, 41, 51, 61 of the socket 2, 3, 4, 5, 6 to the bottom 123 of the bore 121 results in order to avoid flow losses.
  • each of the axes 22, 32, 42, 52 is to be aligned with the axis 122 and the mouth diameter d M of the bushing 2, 3, 4, 5 and 6 is substantially the same as the bore diameter d.
  • the funnel-shaped tapering of the through bores 30, 40, 60 results in a favorable flow introduction with few eddies and losses.
  • the bushings 2, 3, 4, 5, 6, like the swirl element 1, can be made of ceramic or else of a material that is easier to process, since the material stress here is not as great as at the air duct mouth in the flow duct 10. Gluing, pressing or screwing are preferred as joining methods.
  • FIG. 7 shows how the length of the air duct l k in the hard material of the swirl element 1 can be significantly reduced by using a conical bushing 6. This makes it possible for the bushing 6 to be inserted deeper into the swirl element 1 without the wall of the flow channel 10 being broken.
  • Fig. 8 shows the socket 5 used, the through hole 50 is eccentric to the outer diameter d A.
  • This eccentricity can occur both on the bushing 5 and on the bores 120 and / or 121 in the swirl member 1 due to manufacturing tolerances. A compensation of the eccentricity is made possible if the diameters D and d A have a clear difference and in such a way that D is significantly larger than d A.
  • the air duct 12 can be assembled in alignment, in that the bores 120 and 50 are brought into the desired position, for example by means of a centering pin, and thus the axes 122 and 52 have the same position.
  • the resulting lateral cavities can be filled with an adhesive which at the same time seals the assembled air duct 12 against lateral air leakage.
  • the concentric bores 120 and 121 shown in FIGS. 1, 2 and 3 are introduced into a swirl element 1 which is made of very hard material, for example ceramic, for reasons of wear.
  • the bores 120 and 121 are already provided in the sintered ceramic swirl element 1 with a slight undersize.
  • the fine machining of the bores 120 and 121 is preferably carried out in one processing step, the form drills used for this having to make a low material consumption and therefore the bores 120 and 121 are generally subject to extremely small tolerances.
  • the air duct 12 is divided both parallel and transverse to the longitudinal axis if it appears to be advantageous for reasons of production engineering or fluid mechanics.
  • the present invention relates to a longitudinally divided bushing which extends from the circumference of the swirl element 1 into the through-flow duct 10 and which contains an air duct 12 in the form of one or more grooves.
  • Another possibility is to use a plurality of bushings 2, 3, 4, 5 or 6, which, arranged one behind the other, form the assembled air duct 12.
  • a suitable material for the elements of the swirl organ 1 is, for example, preformed sintered ceramic, the final shape and surface quality being achieved by little machining so that the basic shape is already present.
  • the preformed sintered ceramic makes processing relatively easy despite the hard material.
  • the bores or grooves can therefore be finished in the elements of the swirl element in a very precise shape and position.
  • swirl members 1 which are composed of several elements 16 and 17 and 18, respectively. At least one of these elements 16 and 17 and 18 of these swirl members 1 contains a complete air duct 161.
  • the swirl members 1 are divided in such a way that access to the air ducts 161 in the disassembled state of the swirl member 1 is possible from both sides, but especially from the side of the Flow channel 10 is guaranteed. As a result, the production of air channels 161, which expand in the direction of the flow channel 10, is possible in a simple and precise manner.
  • the air channels 161 of FIGS. 9 and 10 can be prefabricated, for example, in sintered ceramic parts, as already described above, and brought to their desired dimensions by a post-treatment. Due to the division of the swirl member 1, the demolding of the air duct 161 and its aftertreatment can take place from the side of the opening into the through duct 10. This advantageously results in the possibility that the air duct 161 receives a very exact opening in the through-duct 10.
  • the opening in the flow channel 10 should open as tangentially as possible, so that the fibers in the flow channel 10 receive a strong twist.
  • the conical shape of the flow channels 161 significantly reduces the air requirement and also improves the swirl effect on the fibers.
  • FIG 9 shows a three-part swirl element 1.
  • the division into the elements 16 was carried out in such a way that in each case one division plane is directed perpendicularly to the center line 122 in the view shown. This results in manufacturing advantages in the demolding and reworking of the elements 16.
  • the conical shape of the air ducts 161 with a circular cross section is e.g. a cylindrical shape because of the higher air speed in the air duct 161 that can be achieved thereby.
  • This shape of the air channels it was found that, in addition to a lower air consumption, they also achieve a higher tensile strength of the thread compared to a cylindrical shape of the air channels. The efficiency of the swirl organ is thus improved.
  • cross sections of the air duct 161 can also be advantageous for a good twist distribution, which not only have an increase in the cross-sectional area, but also change their shape. It is thus possible for the air duct 161 to have a circular cross section on the circumference of the swirl member 1 and an oval cross section on the through duct 10, which is directed with a longer extension either in the direction of the longitudinal axis 100 or in the circumferential direction of the through duct 10.
  • the cross section is of course perpendicular to axis 122.
  • the arrangement of three air channels 161 has proven itself for good thread quality.
  • the arrangement of, for example, two air channels 161, as shown in FIG. 10 can also be advantageous.
  • the air channels 161 are arranged in bushes 17 which are inserted in the body 18 of the swirl element 1.
  • the air channels 161 can be machined from their two openings.
  • the advantages result in a manner similar to that in FIG. 9.
  • the bushes can either be exchangeable or can be fixed in the base body 18. It is important here that the abutting edges of the bodies 17 and 18 and 16 in the pass-through channel 10 are processed very carefully, so that no fibers can get caught on them and, when detached, produce faulty spots in the thread.
  • the length 1 of the air channels 161 can be varied in that a prechamber 162 is arranged in front of the air channels 161 in the elements 16 and 17, respectively.
  • the pre-chamber 162 also causes the air to flow evenly into the air duct 161.
  • tapered air channels 161 By using tapered air channels 161, it is possible to achieve at least the same tensile strength of the thread with significantly reduced air consumption as with e.g. cylindrical air channels can be achieved.
  • the swirl members 1 shown in FIGS. 9 and 10 are thus distinguished by good spinning results with low air consumption. This is achieved not least by the fact that the mouths of the air channels 161 in the through-channel 10 are particularly easy to machine and, as a result, unfavorable influences on the air flow and the fiber material passing through can be avoided.
  • the swirl members 1 are shown greatly enlarged in FIGS. 1 to 10.
  • the following example table of dimensions should serve as a guide for the actual size of the swirl element 1. Outside diameter of the swirl element 1 8.5 mm Diameter of the flow channel 10 2.5 mm Cone angle ⁇ 7 ° Angle of inclination ⁇ 10 ° smallest diameter d of air duct 161 0.4 mm Length of the swirl organ 1 20 mm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Joints Allowing Movement (AREA)
EP88908667A 1987-10-13 1988-10-12 Drallorgan für das verspinnen von fasern zu einem faden Expired - Lifetime EP0344233B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3734566 1987-10-13
DE3734566A DE3734566C2 (de) 1987-10-13 1987-10-13 Drallorgan für das Verspinnen von Fasern zu einem Faden

Publications (2)

Publication Number Publication Date
EP0344233A1 EP0344233A1 (de) 1989-12-06
EP0344233B1 true EP0344233B1 (de) 1993-12-29

Family

ID=6338209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88908667A Expired - Lifetime EP0344233B1 (de) 1987-10-13 1988-10-12 Drallorgan für das verspinnen von fasern zu einem faden

Country Status (6)

Country Link
EP (1) EP0344233B1 (ja)
JP (1) JP2823575B2 (ja)
CN (1) CN1018073B (ja)
DE (2) DE3734566C2 (ja)
IN (1) IN172073B (ja)
WO (1) WO1989003440A1 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3942915C1 (en) * 1989-12-23 1991-04-11 Zinser Textilmaschinen Gmbh, 7333 Ebersbach, De Yarn spinning appts. - comprises spindle with cop, revolving cap and drawing system, and pneumatic twist nozzle etc.
CH682566A5 (de) * 1990-12-06 1993-10-15 Rieter Ag Maschf Düse zur Drallerzeugung in einer Düsenspinnmaschine.
CN100347362C (zh) * 2003-10-16 2007-11-07 江苏宏源纺机股份有限公司 吸丝嘴
WO2006017948A1 (de) * 2004-08-20 2006-02-23 Maschinenfabrik Rieter Ag Spindel mit injektorkanal und verfahren zum ansetzen für eine luftspinnmaschine.
DE102006018249A1 (de) * 2006-04-13 2007-10-18 Wilhelm Stahlecker Gmbh Spindelförmiges Bauteil für eine Luftdüsenspinnvorrichtung mit einem Injektionskanal
CN100427654C (zh) * 2006-07-28 2008-10-22 东华大学 一种平行股线制作装置
IT1391737B1 (it) * 2008-11-20 2012-01-27 Pafasystem S R L "dispositivo pneumatico di trasporto di un fascio di fibre tessili"
CN102433619A (zh) * 2011-09-13 2012-05-02 江南大学 一种新型涡流环锭纱的加工方法与装置
CN102433623A (zh) * 2011-10-14 2012-05-02 江南大学 一种光洁柔软纱的生产方法
CN102433624A (zh) * 2011-10-14 2012-05-02 江南大学 一种改变环锭纺纺纱段捻度的装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948773A (en) * 1959-05-12 1964-02-05 Celanese Corp Bulking yarn
DE1660252A1 (de) * 1965-07-20 1971-04-15 Ts Lab Przemyslu Dziewiarskieg Verfahren und Vorrichtung zum Kraeuseln von Garn aus synthetischen Fasern
FR2031907A5 (ja) * 1969-02-12 1970-11-20 Rhodiaceta
US3785135A (en) * 1971-04-05 1974-01-15 Leesona Corp Producing torque controlled voluminous set yarns
SU461669A1 (ru) * 1973-05-10 1975-06-25 Центральный Научно-Исследовательский Институт Информации И Технико-Экономических Исследований Министерства Машиностроения Для Легкой И Пищевой Промышленности И Бытовых Приборов Ссср" Устройство дл бескольцевого пр дени
SU453098A1 (ru) * 1973-07-24 1975-03-15 А. С. Попов Устройство дл бескольцевого пр дени
JPS5250296B2 (ja) * 1974-01-09 1977-12-23
SU493136A1 (ru) * 1974-07-16 1978-05-15 Всесоюзный Научно-Исследовательский Институт Легкого И Текстильного Машиностроения Устройство дл бескольцевого пр дени
JPS525337A (en) * 1975-06-30 1977-01-17 Toyo Boseki Method of producing spunnyarnnlike yarn
DE2552000A1 (de) * 1975-11-20 1977-06-02 Konrad Goetzfried Gegenlaeufiges spinnverfahren und vorrichtung
JPS5926686B2 (ja) * 1978-12-28 1984-06-29 阿波スピンドル株式会社 撚糸装置ならびに該装置を使用した撚糸方法
JPS5860029A (ja) * 1981-10-07 1983-04-09 Toyoda Autom Loom Works Ltd 仮撚空気ノズル
US4457130A (en) * 1981-10-13 1984-07-03 Murata Kikai Kabushiki Kaisha Air spinning nozzle unit
JPS58115130A (ja) * 1981-12-25 1983-07-08 Toyoda Autom Loom Works Ltd 仮撚ノズル
DE3301652A1 (de) * 1982-01-20 1983-07-28 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Falschdraht-luftduese
EP0121010B1 (en) * 1983-03-30 1986-12-10 Toray Industries, Inc. Apparatus for interlacing multifilament yarn
GB8421020D0 (en) * 1984-08-17 1984-09-19 Carding Spec Canada Handling silver
BG41935A1 (en) * 1985-05-07 1987-09-15 Bakhov Air eddy nozzle for spinning of staple fibre yarn
DE3541219A1 (de) * 1985-11-21 1987-05-27 Schubert & Salzer Maschinen Verfahren und vorrichtung zum verspinnen von fasern
DE3708542A1 (de) * 1987-03-17 1988-09-29 Fritz Stahlecker Vorrichtung zum pneumatischen falschdrallspinnen
JP3259990B2 (ja) * 1992-10-23 2002-02-25 株式会社東芝 カラー受像管装置

Also Published As

Publication number Publication date
DE3734566C1 (de) 1989-04-27
JP2823575B2 (ja) 1998-11-11
DE3734566C2 (de) 1994-10-06
EP0344233A1 (de) 1989-12-06
CN1018073B (zh) 1992-09-02
CN1034030A (zh) 1989-07-19
WO1989003440A1 (en) 1989-04-20
DE3886738D1 (de) 1994-02-10
JPH02501837A (ja) 1990-06-21
IN172073B (ja) 1993-03-27

Similar Documents

Publication Publication Date Title
DE102014108219B4 (de) Rotationswerkzeug sowie Verfahren zur Herstellung eines Rotationswerkzeugs
EP0344233B1 (de) Drallorgan für das verspinnen von fasern zu einem faden
DE3732708A1 (de) Luftduese fuer pneumatisches falschdrallspinnen mit einem aus wenigstens zwei teilstuecken gebildeten fadenkanal
DE1089607B (de) Schraubengetriebe
DE3709647A1 (de) Mit innenliegenden kuehlkanaelen ausgestattetes bohrwerkzeug mit zumindest zwei spannuten
EP4076812A1 (de) Spiralbohrer mit einer stufenstrukturierten schneidspitze
DE2834299A1 (de) Kugelumlauf-spindelantrieb
DE10205635B4 (de) Werkzeugverbindung
DE3411482C2 (ja)
DE19715016A1 (de) Zweiteiliges Gehäuse und Verfahren zu seiner Fertigung
DE3336404A1 (de) Verfahren zum aufbau einer wanderwellenroehre mit gekoppelten hohlraeumen
DE20122881U1 (de) Werkzeug zur Fertigbearbeitung von Ventilsitz und -führung
DE2427801A1 (de) Aus einzelnen teilen zusammengeschweisste kurbelwelle
DE3420652C2 (ja)
DE3419300A1 (de) Fadenabzugsrohr
DE19646623A1 (de) Vorrichtung zum Aufbringen eines Beschichtungsmaterials auf eine optische Faser
EP0418693A1 (de) Düse einer Düsenspinnvorrichtung
DE102017208039B4 (de) Verfahren zur Herstellung eines Rotationswerkzeugs und Rotationswerkzeug
DE3700499A1 (de) Bohrender und selbstschneidender befestiger
DE102018208616A1 (de) Antrieb für einen Flügel einer Tür oder eines Fensters und Verfahren zur Herstellung eines solchen
DE4026993A1 (de) Luftduese zum einwirken von druckluft auf fasermaterial
DE3709667A1 (de) Duese zum verspruehen zweier medien
EP0489686B1 (de) Düse zur Drallerzeugung in einer Düsenspinnmaschine
DE202021004070U1 (de) Spiralbohrer mit einer stufenstrukturierten Schneidspitze mit divergenten Setzstufenabschnitten
DE10028629B4 (de) Wälzkörpergewindetrieb

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

ITCL It: translation for ep claims filed

Representative=s name: ZINI MARANESI

17P Request for examination filed

Effective date: 19890714

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

EL Fr: translation of claims filed
GBC Gb: translation of claims filed (gb section 78(7)/1977)
17Q First examination report despatched

Effective date: 19910923

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RIETER INGOLSTADT SPINNEREIMASCHINENBAU AKTIENGESE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19931229

Ref country code: FR

Effective date: 19931229

Ref country code: GB

Effective date: 19931229

REF Corresponds to:

Ref document number: 3886738

Country of ref document: DE

Date of ref document: 19940210

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19931229

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20031024

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20031104

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050503

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL