EP2292900B1 - Bouchon métallique comprenant un filetage - Google Patents

Bouchon métallique comprenant un filetage Download PDF

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Publication number
EP2292900B1
EP2292900B1 EP10011923.9A EP10011923A EP2292900B1 EP 2292900 B1 EP2292900 B1 EP 2292900B1 EP 10011923 A EP10011923 A EP 10011923A EP 2292900 B1 EP2292900 B1 EP 2292900B1
Authority
EP
European Patent Office
Prior art keywords
tube
screwed plug
blind hole
edge
diameter
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
EP10011923.9A
Other languages
German (de)
English (en)
Other versions
EP2292900A2 (fr
EP2292900A3 (fr
Inventor
Hartmut Flaig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from EP03813103A external-priority patent/EP1572394B1/fr
Publication of EP2292900A2 publication Critical patent/EP2292900A2/fr
Publication of EP2292900A3 publication Critical patent/EP2292900A3/fr
Application granted granted Critical
Publication of EP2292900B1 publication Critical patent/EP2292900B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs

Definitions

  • the invention relates to a screw plug made of metallic material for a fluid line - in particular for an oil line or an oil vessel - with a cylindrical shaft containing an external thread on a ridge plate in which a blind hole polygonal cross-section is centrally provided as a receiving member for a tool according to the preamble of claim 1.
  • the GB-A-1 274 754 shows a metallic screw plug.
  • a closure screw which has a blind hole on a side opposite a drive opening.
  • the production of such a screw is relatively expensive.
  • the known screw has at the head a phase portion in which the external thread expires.
  • the known screw can not be screwed to the plant of the bottom of the head in an internal thread, which can be problems in the production of a tight connection.
  • Screw plugs of this type are mainly used in motor vehicles and must therefore be produced in large quantities. It has proven to be favorable so far that their production must be carried out in at least three stages of production. To improve this improvement is the object of the invention.
  • the shaft is designed as a pipe stump provided with the external thread, and from the end face of the shank of the screw plug, a blind hole that is coaxial to the usual blind hole of the ridge plate is newly designed.
  • a blind hole that is coaxial to the usual blind hole of the ridge plate is newly designed.
  • the depth of the wall surface should be about 8 mm, in particular 7.8 mm.
  • the shape of the closure screw according to the invention also includes that the free pipe edge of the pipe stump at least one - and preferably both sides - one assigned by this edge of the pipe away to the ridge plate inclined phase edge is assigned, the outer phase edge is to pass into the external thread.
  • this screw plug in which a blank is produced with a molded onto a ridge plate subsequent cylindrical tube stub, the inner diameter and outer diameter are formed shorter than the intended, this corresponding diameter of the screw plug; the tube stump of the blank is widened by simultaneously creating pressure on the inner wall surface of its blind hole.
  • a plunger is driven as a mandrel tool in the blind hole of Rohlingrohrstumpfes and radially widened by this the wall of the pipe stump.
  • the method is characterized in that a blank (34) with a cylindrical ridge (36) integrally formed on a ridge plate (12) is produced, whose inner diameter (e 1 ) and outer diameter (f 1 ) are formed shorter than the corresponding ones provided Diameter (e, f) of the screw plug (10), and that the tube stub (36) of the blank is expanded to generate pressure on the inner wall surface (19 a ) of the blind hole (18 a ).
  • an external thread (22) is formed in the tube outer surface (38) of the expanded tube stub (36).
  • the external thread (22) is formed in the region of the pipe stub (36) which is determined axis-wise from the foot contour (25) of the phase section (24).
  • the external thread (22) is formed in the outer surface (38) of the pipe stub (36) by way of thread rolling.
  • the outer surface (38) of the tube stub (36) is pressed against an encompassing molding tool.
  • the blank used for the process for producing the closure screw in this connects to the ridge plate a cylindrical pipe stub of an outer diameter and a diameter of the blind hole, whose Dimensions are shorter than those of the outer diameter and the hole diameter of the actual screw plug;
  • the diameter of the blind hole should measure about 12 mm and the outer diameter of the pipe stump about 19 mm, preferably 19.2 mm.
  • the dimensional difference to the final product is compensated by the expansion process.
  • a blank for producing a closure screw (10) is provided, which is characterized in that on the ridge plate (12) of the blank (34) has a cylindrical tube stub (36) of an outer diameter (f 1 ) and a diameter (e 1 ) of the Blind hole (18 a ) connects, whose dimensions are shorter than the outer diameter (f) and hole diameter (s) of the screw plug (10).
  • the outside diameter (f 1 ) of the tube stub (36) on the blank (34) is shorter than the base diameter (g) of the phase section (24) on the closure screw (10).
  • phase section (24) of the blank (34) encloses an angle (w) with the blank longitudinal axis (A), which preferably measures approximately 30 °.
  • the blank is preferably characterized by a diameter (e 1 ) of the blind hole (18 a ) of about 12 mm and an outer diameter (f 1 ) of the pipe stump (36) of about 19 mm, preferably of 19.2 mm.
  • the blank is preferably characterized in that the pipe edge (16 a ) of the pipe stub (36) on both sides in each case one of the pipe edge away inclined phase edge (15 a , 17 a ) is assigned.
  • the outer diameter of the pipe stub on the blank shorter than the foot diameter of the phase section on the screw plug; the latter - as well as the phase section of the blank - should enclose an angle with the blank longitudinal axis, which preferably measures about 30 °.
  • the pipe edge of the pipe stump on both sides is assigned in each case one of the pipe edge inclined away phase edge, wherein the outer phase edge merges into the cylindrical pipe outer surface.
  • a plunger is set as a mandrel tool at one end in a housing and the free end of a relatively movably arranged support or holding head associated with a receptacle for a blank; the axis of which runs in the central axis of the tool or the plunger. It is also beneficial that at the that the support or holding head far end of the sleeve-like housing, a stationary base plate is provided which forms an abutment for her seated plunger.
  • a stamp tube plunger The free end of the partially surrounded by a stamp tube plunger should inventively engage in a central bore of the support or holding head, in which case a print head of the plunger protrudes axially beyond the mouth edge of the stamp tube.
  • this stamp tube on the other - preferably with a disc base - a stationary stationary sleeve of the tool is seated, which forms a bearing surface for the stationary sleeve passing through plunger.
  • a central pressure base can be formed on that base plate, which forms a common abutment for the plunger and the stand sleeve.
  • a tool for producing a closure screw (10) is used, which is characterized in that in a housing (42) a plunger (50) as a mandrel tool at one end and the free end of a relatively movably arranged support or holding head (68) associated with a receptacle for a blank (34), wherein the axis (A) in the central axis (M) of the tool (40) and the plunger extends.
  • the sleeve-like housing (42) at that the support or holding head (68) far end is associated with a stationary base plate (44) which forms an abutment for her seated plunger (50).
  • the tool is provided in that the free end of the partially compressed by a stamping tube (54) plunger (50) engages in a central bore (70) of the support or holding head (68), wherein a printhead (52) of the Plunger axially overhanging the mouth edge (56) of the stamp tube.
  • the punch tube (54) at the other end preferably with a Tellerfuß (57), a stationary stationary sleeve (48) of the tool (40) is seated, which forms a support surface for the stationary sleeve passing through plunger (50) ,
  • the tool is characterized by a disc-like centric pressure base (46) of the base plate (44) as an abutment for the plunger (50) and the stationary sleeve (48).
  • the supporting or holding head (68) of a sliding sleeve (60) is seated, which is associated coaxially with the plunger (50) and the stationary sleeve (48).
  • the diameter (q 1 ) of the pressure base (46) approximately corresponds to the seated diameter of the sliding sleeve (60).
  • the sliding sleeve (60) has on a foot section (64 t ) assigned to the pressure base (46) a head section (64) which is radially widened relative to the latter.
  • the sliding sleeve (60) with the holding head (68) of a guide chuck (80) holding holding and with this relative to the housing (42) is arranged axially movable.
  • the tool is provided that between the base plate (44) and the guide chuck (80) an energy storage device (78) is arranged.
  • the tool is characterized by a profile element (78) made of elastic material as energy storage.
  • the energy storage or the profile element (78) is annularly placed around the pressure base (46) of the base plate (44). Further preferably, it is provided in the tool that the blank (34) seated in the carrying or holding head (68) is pressed onto the print head (52) during its axial movement Pressure stamp (50) is arranged Jerusalem pressbar, wherein the diameter thereof is greater than the diameter (e 1 ) of the blind hole (18 a ) of the blank.
  • the carrying or holding head of the tool is seated on a sliding sleeve which is associated coaxially with the pressure ram and the stationary sleeve.
  • the diameter of the pressure base should then correspond approximately to the seated diameter of the sliding sleeve.
  • the latter has, moreover, on a base portion assigned to the pressure base, a head portion which is radially widened relative to the latter and is intended to be held in a holding manner by the holding head by a guide chuck and arranged to be axially movable relative thereto with respect to the housing.
  • a force store is arranged according to the invention between these tool parts, in particular a profile element of elastic material.
  • This profile element is preferably placed annularly around the pressure base of the base plate and can be made of strands of material of different cross-sectional shape.
  • the blank sitting in the supporting or holding head blank can be pressed in its axial movement on the print head of the plunger, wherein the diameter of the plunger is greater than the diameter of the blind hole in the blank, i. when inserting the plunger, the blank expands.
  • a screw plug 10 for a not shown for reasons of clarity oil line or oil tank of a motor vehicle has on a plate-like ridge plate 12 axial height b of 4.5 mm and the diameter d of about 27 mm to the longitudinal axis A of the screw plug 10 axially integrally formed pipe stump 14th of the outer diameter f; the axial height a of the screw plug 10 measures 19 mm, from which a height c of the tube stump 14 of 14.5 mm is calculated.
  • Such an inclined phase edge 17 also surrounds the pipe edge 16 from the outside and merges into an external thread 22.
  • a molded-in closes to the ridge plate 12 at a cross-sectional angle w of 30 ° (see FIG. Fig. 3 ) conically expanding phase portion 24 axial height i of 2.5 mm. Its rand hasslertiger foot diameter g measures 19.5 mm.
  • the external thread 22 attaches to the rohr maybertige foot contour 25 of the phase portion 24 and protrudes radially beyond this.
  • a central blind hole 28 hexagonal cross-section of the diameter z of about 4.8 mm (SW 10) and the wall depth y of 7 mm. Its hole deepest 30 is also centrally inclined from the wall surface 29 to the screw longitudinal axis A, also forming a flat conical surface. In this first blind hole 28 is used to rotate the screw plug 10 a - not reproduced in the drawing - tool used.
  • the screw plug 10 is a in Fig. 3 illustrated blank 34 made of metal (for example, 19 MnB4) made of - the ridge blind hole 28 containing - ridge plate 12 and a cylindrical tube stub formed thereon 36; while the ridge plate 12 in its and its blind hole 30 dimension (b, d, y, z) corresponds to that of the finished screw 10, the tube stump 36 of the blank 34 is designed differently to the pipe stump 14.
  • the pipe outer surface 38 is here at the end of the ridge plate 12 far end - also the final dimensions g, w having - inclined phase portion 24 at; the diameter f1 of its cylindrical contour is 19.2 mm, that is, 1.77 mm shorter than the outer diameter f on the finished screw plug 10.
  • the diameter e1 of the blind hole 34 present, adjoining the inner phase edge 15a of the tube edge 16a blind hole 18a measures 12 mm, that is 1.8 mm shorter than the diameter e of the finished screw plug 10.
  • the outer phase edge is denoted here by 17a.
  • a tool 40 for a preferred way of producing the screw plug 10 is the 4 to 6 refer to.
  • Coaxial with its central axis M is a cylindrical tool housing 42 of the exemplary outer diameter q of 120 mm, a base plate 44 with centrally formed pressure base 46 of a diameter q1 of 60 mm and a height n1 of 21.5 mm and associated with a radial stepped bore 45.
  • This axial bore 47, 47t receives a plunger 50 as a mandrel tool, above the stationary sleeve 48, a plunger tube 54 of length n of nearly 60 mm from a pipe section 55 with this one end molded cup base 57 of diameter t3 of about 40 mm embraces; the outer pipe diameter t2 measures 21 mm, the inner diameter t of the pipe interior 58 about 14 mm.
  • the latter continues downwards through those axial bores 47 of the stationary sleeve 48.
  • an axially parallel bore 49 of narrower diameter which is aligned with a corresponding bore 49a in the base plate 44.
  • a sliding sleeve 60 of a height of about twice the length mentioned n2 is attached externally; the lower edge 62 sits in Fig. 5 the centric pressure base 46 of the base plate 44.
  • the cylindrical outer surface of the lower half or foot portion 64t of the sliding sleeve 60 continues the outer surface of the pressure base 46 and defines a cylindrical cavity 63.
  • n2 of the stationary sleeve 48 approximately corresponding distance to that lower edge 62 starts a wider head portion 64 of the sliding sleeve 60, which carries on its ridge end 66 a holding head 68 - upwardly tapered cross-section - with a central bore 70; this takes up the upper end of the tube section 55 of the punch tube 54, whose outer diameter t2 determines the diameter of the bore 70.
  • the height n3 of the holding head 68 is slightly shorter than the length n2 of the stationary sleeve 48.
  • a space filling, also sleeve-like guide chuck 80 This encloses the sliding sleeve 60 and the holding head 64 conclusive and can be moved together with these inner parts together as a unit in the tool housing 42 become.
  • a thread 81 for a threaded sleeve 84 which extends in that cavity 63.
  • the ridge portion of the bore 70 is cross-sectionally adapted to the structural design of the screw plug 10, ie the diameter of the bore 70 corresponds with a small clearance - the outer diameter f of the tube stump 14 of the screw plug 10 and extends approximately in one of the axial height b of the ridge plate 12th corresponding distance from the end face 76 of the holding head 68 of a conical annular plane 72 of the bore wall 71 - corresponding to the inclined phase portions 24 of the screw plug 10 - up to a step 74, according to FIG Fig. 4 the ridge plate 12 of the blank 34 is placed.
  • the circumference of the pipe stub 36 extends in a ring distance to the bore wall 71 of the central bore 70th
  • this insertion process is the phase edge 15a of the blank 34 - at a distance from the mouth edge 56 of the tube section 55 - on the corresponding inwardly inclined ridge or phase edge 51 of the endisertigen section or print head 52 of the plunger 50, which corresponds to the mouth edge 56 of the punch tube 54 surmounted.
  • the diameter of this Firstrandes 51 corresponds to the diameter e of the blind hole 18 of the screw plug 10, that is greater than the corresponding diameter e1 on the blank 34th
  • the guide chuck 80 is lowered within the housing 42 in the direction x to the base plate 44 against a indicated at 78 profile ring approximately circular cross section of elastic material, ie the distance s between them is reduced, the punch or printhead 52 of the stationary plunger 50 penetrates into the blind hole 18 a of the blank 34 and the tube stub 36 expands until the outer surface 38 of the bore wall 71 of the bore 70 abuts.
  • the dimension k of here 7 mm of the pressure path is in Fig. 5 recognizable.
  • Those arranged between the base plate 44 and guide plate 80 profile ring 78 may be otherwise configured cross-section otherwise than in Fig. 5 outlined; optionally it is designed as a hollow profile.
  • the not quite finished screw plug 10 r is removed from the holding head 68 and its expanded pipe stub 36 equipped with the external thread 22; then the screw plug 10 is ready for use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Forging (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)

Claims (9)

  1. Bouchon fileté en matériau métallique pour une conduite fluidique, en particulier pour une conduite d'huile ou un récipient d'huile, comprenant une tige cylindrique (36) avec un filetage extérieur (22) au niveau d'une plaque de sommet (12), au centre de laquelle est prévu un trou borgne (28) de section transversale polygonale en tant qu'organe de réception pour un outil, la tige (36) étant réalisée sous forme de bout de tube (14) pourvu du filetage extérieur (22) et un trou borgne (18) coaxial au trou borgne (28) de la plaque de sommet (12) partant de la face frontale (16) de la tige, et une portion biseautée (24) présentant un contour de base de type tubulaire (25), inclinée en direction axiale depuis la plaque de sommet (12) et se rétrécissant dans la direction s'écartant de la plaque de sommet (12), étant prévue en tant que transition à la tige (36),
    caractérisé en ce que
    le contour de base de type tubulaire (25) de la portion biseautée constitue une ligne de départ interne pour le filetage extérieur (22) faisant saillie radialement au-delà de ce contour et en ce que le bouchon fileté est réalisé d'une seule pièce.
  2. Bouchon fileté selon la revendication 1, caractérisé en ce que la portion biseautée (24) du bouchon fileté (10) s'élargissant dans la direction du sommet forme avec l'axe longitudinal du bouchon (A) en coupe longitudinale un angle (w) qui mesure de préférence environ 30°.
  3. Bouchon fileté selon la revendication 1 ou 2, caractérisé par un diamètre (g) du contour de base (25) de la portion biseautée (24) de 19,5 mm.
  4. Bouchon fileté selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la profondeur de trou (20) du trou borgne (18) du bout de tube (14) présente une section transversale inclinée depuis sa surface de paroi (19) vers l'axe longitudinal du bouchon (A).
  5. Bouchon fileté selon la revendication 4, caractérisé par une profondeur (c) de la surface de paroi (19) d'environ 8 mm, en particulier de 7, 8 mm.
  6. Bouchon fileté selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'au moins un bord biseauté (15, respectivement 17) est associé au bord tubulaire (16), de manière inclinée vers le sommet à l'écart dudit bord tubulaire.
  7. Bouchon fileté selon la revendication 6, caractérisé en ce qu'à chaque fois un bord biseauté (15, 17) est associé de chaque côté au bord tubulaire (16), de manière inclinée vers le sommet à l'écart dudit bord tubulaire.
  8. Bouchon fileté selon la revendication 7, caractérisé en ce que le bord biseauté extérieur (17) se prolonge par le filetage extérieur (22).
  9. Utilisation d'un bouchon fileté selon l'une quelconque des revendications précédentes, comprenant un trou borgne (18) partant de la face frontale (16) de la tige en tant que bouchon fileté pour une conduite d'huile ou un récipient d'huile.
EP10011923.9A 2002-12-16 2003-11-29 Bouchon métallique comprenant un filetage Expired - Lifetime EP2292900B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10258994 2002-12-16
DE10321544A DE10321544A1 (de) 2002-12-16 2003-05-14 Verschlussschraube aus metallischem Werkstoff, Verfahren zu deren Herstellung, Rohling dafür sowie Werkzeug dazu
EP03813103A EP1572394B1 (fr) 2002-12-16 2003-11-29 Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP03813103.3 Division 2003-11-29
EP03813103A Division EP1572394B1 (fr) 2002-12-16 2003-11-29 Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant

Publications (3)

Publication Number Publication Date
EP2292900A2 EP2292900A2 (fr) 2011-03-09
EP2292900A3 EP2292900A3 (fr) 2011-08-03
EP2292900B1 true EP2292900B1 (fr) 2015-06-17

Family

ID=32403874

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10011923.9A Expired - Lifetime EP2292900B1 (fr) 2002-12-16 2003-11-29 Bouchon métallique comprenant un filetage

Country Status (4)

Country Link
EP (1) EP2292900B1 (fr)
AT (1) ATE516904T1 (fr)
DE (1) DE10321544A1 (fr)
ES (2) ES2547409T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005203743B1 (en) * 2005-01-21 2006-02-02 Jody Horan A Plug for a Hydraulic Fitting
DE202013105922U1 (de) * 2013-12-23 2015-03-24 Hartmut Flaig Dichtschraube sowie Dichtanordnung
CN110822109B (zh) * 2018-08-08 2023-05-23 浙江三花智能控制股份有限公司 阀装置
DE102019116338B3 (de) * 2019-06-17 2020-08-20 SF Handels- und Besitzgesellschaft mbH Verfahren zur Herstellung eines Schraubelementrohlings sowie eines Schraubelements und Schraubelementrohling sowie Schraubelement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1274754A (en) 1969-03-25 1972-05-17 Adams & Sons Manufacturers Ltd New and improved method of making plugs for radiators and the like
US3746067A (en) * 1969-07-14 1973-07-17 Deutsch Fastener Corp Shear-resistant captive screw
US4394421A (en) * 1979-07-09 1983-07-19 Textron Inc. Thread forming of sintered porous metal shapes
JPS5831798Y2 (ja) * 1981-03-20 1983-07-14 富田 一行 ねじ栓
US4503934A (en) * 1983-04-11 1985-03-12 Stephanus Tony L Drain plug with disengagement sealing means
US4810148A (en) * 1987-04-09 1989-03-07 Ishikawa Tekko Kabushiki Kaisha Drain bolt
DE4019223C1 (fr) 1990-06-15 1991-04-25 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
JPH06165245A (ja) * 1992-11-19 1994-06-10 Inter Supeesu:Kk 電話通信システム

Also Published As

Publication number Publication date
EP2292900A2 (fr) 2011-03-09
ES2547409T3 (es) 2015-10-06
EP2292900A3 (fr) 2011-08-03
DE10321544A1 (de) 2004-07-01
ES2369906T3 (es) 2011-12-09
ATE516904T1 (de) 2011-08-15

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