WO1995034835A1 - Appareil de rotation de fibres a rainure stationnaire - Google Patents

Appareil de rotation de fibres a rainure stationnaire Download PDF

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Publication number
WO1995034835A1
WO1995034835A1 PCT/SE1995/000697 SE9500697W WO9534835A1 WO 1995034835 A1 WO1995034835 A1 WO 1995034835A1 SE 9500697 W SE9500697 W SE 9500697W WO 9534835 A1 WO9534835 A1 WO 9534835A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
fiber
lid
rotated
angle
Prior art date
Application number
PCT/SE1995/000697
Other languages
English (en)
Inventor
Ion Dumitriu
Håkan EKWALL
Original Assignee
Telefonaktiebolaget Lm Ericsson
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 Telefonaktiebolaget Lm Ericsson filed Critical Telefonaktiebolaget Lm Ericsson
Priority to AU27583/95A priority Critical patent/AU2758395A/en
Publication of WO1995034835A1 publication Critical patent/WO1995034835A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3616—Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
    • G02B6/3803—Adjustment or alignment devices for alignment prior to splicing
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4226—Positioning means for moving the elements into alignment, e.g. alignment screws, deformation of the mount

Definitions

  • the present invention relates to a fiber rotator having a fixed groove or generally a device by means of which the angular position of cylindrical bodies and in particular of optical fibers can be adjusted in association with splicing, and moreover, a method of rotating a fiber.
  • optical fibers which have inhomogeneities in the longitudinal direction, for example PM-fibers and fibers provided with longitudinal cavities, it is im ⁇ portant that the fibers in the splicing procedure are placed in correct angular positions in relation to each other. Therefor some viewing device is required by means of which it is possible to determine the angular position of an end of such a fiber, and a mechanical device allowing a controlled rotation of the thin fiber.
  • Optical fibers of single mode type have usually an exterior diameter of 125 ⁇ m, inclusive a polymer protective layer 250 ⁇ m.
  • Retainers are previously known in which a fiber end is inserted between two flat surfaces which are parallel to and aligned with each other and which are arranged at a distance from each other which is very well adjusted to the diameter of the fiber, see e.g. our previous Swedish patent application SE-A 9300522-1, filed February 17, 1993.
  • One of the planes is attached to a movable part which can be displaced in relation to a base plate on which the second surface is arranged.
  • Such a construction will, however, give a lateral displacement of the fiber during the rotation process which can be a disadvantage in the alignment procedure for splicing to another fiber.
  • Another possibility is to insert the fiber in a rotatable retainer along the rotational axis thereof and then rotate the retainer, see the documents discussed hereinafter.
  • a rotational device consists of a base plate
  • the rotational mechanism comprises lower and upper plates API and
  • AP2 which are elastically biased (by means of leaf springs FE1 and FE2) and provided with a friction material, such as a plastics material, and which are in contact with an inserted fiber from underneath and from above respectively.
  • These plates are operated by means of a rotational and link arrangement EK, GS, WT, and FE comprising a knob EK for movements in mutually opposite directions and in the transverse direction of the fiber causing that the fiber is rotated.
  • EK, GS, WT, and FE comprising a knob EK for movements in mutually opposite directions and in the transverse direction of the fiber causing that the fiber is rotated.
  • the West German published patent application DE-A1 39 37 057 relates to a splicing device for optical PM-fibers that comprises means for adjusting the angular position of a fiber before the very welding step.
  • the means consist of an alignment shaft 17 provided with a knob 21, a groove 18 for receiving the fiber along the rotational axis of the shaft and clafriping tongues 19 for retaining the fiber.
  • U.S. patent US-A 5,188,268 relates to a device for oblique cutting of optical fibers and here also the fiber is turned by introducing it in a retainer and by rotating the retainer having as a rotary axis the geometrical axis of the fiber.
  • a device for rotating a fiber consists of two parts, a rear part which is used for retaining securely the fiber in stripping, cutting, etc., and a front part which is used for the very rotation of the fiber. Over each one of the parts hinged lids are placed which in swung-down positions are retained by means of magnets. The rear lid can be opened a little by being swung up a small angle, for releasing the fiber so that a rotation thereof is made possible. The swinging-up movement is achieved by means of a knob which is turned about a quarter of a full turn and then a protruding part is screwed out lifting the rear lid.
  • a horizontally movable slide or block placed in the front lid, makes a fiber placed in a shallow V-groove rotate when the slide is horizontally moved.
  • the slide has therefor been provided with a surface layer contacting the fiber having a good friction, pre ⁇ ferably of rubber, and the slide is well engaging the fiber when the lid is in a swung-down position.
  • the groove where the fiber is located has a small friction to the surfaces of the fiber by the fact that the groove is finely machined.
  • the slide is horizontally operable directly or through an intermediate ball in one of its movement directions by means of a knob which has a threaded shaft arranged in an angle of 45° in relation to the movement direction of the slide. For a displacement of the slide in the opposite direction the force obtained from return springs is operative.
  • the fiber rotator is used for rotating optical fibers to correct angular positions when they are to be spliced to other fibers. It is designed to have dimensions like a standard retainer for welding devices and it has, as has already been mentioned, two parts, a rear part serving to retain the fiber in stripping operations, cutting, etc. and a front part where the very rotating mechanism is placed.
  • the rotator can generally be used for rotating an elongated, essentially circular-cylindrical body around the longitudinal axis thereof and its construction can in principle be described in several ways.
  • it has a first part or slide which is movable in the transverse direction in relation to a body which is placed in the device and which is to be turned. This first part is then arranged to come in contact with the side of such an inserted body which is to be rotated.
  • a second part comprises a straight groove, in particular a V-groove, which is placed on a first surface portion of a base part, chassis or frame of the device, and it is arranged to receive a body which is inserted to be rotated, so that the body will obtain an accurately straight configuration, i.e.
  • the walls of the groove are then located so that they contact an inserted body at a side thereof which is oppositely located in relation to the side at which to the first part con ⁇ tacts the inserted body.
  • the groove is then arranged to have such a depth in relation to the first surface portion on the second part, that a body inserted in the groove extends above this first surface portion in order to contact the first part.
  • the second part comprises advantageously a second surface portion through which the groove also extends and which is located at a level above the first surface portion so that the groove within the second surface portion is deeper than within the first surface portion. It will cause that a body inserted in the groove, such as a fiber, which can be rather flexible and elastic and easily spring upwards, be retained more easily in its position in the groove.
  • the second surface portion can therefor comprise parts on both sides of the first surface portion in order to achieve a better retainment.
  • the portion of the first part with which it contacts an inserted body is naturally ad ⁇ vantageously of a material having a high friction to the surface of the inserted body in order to be able to accomplish the rotation.
  • This portion can comprise several parallel protrusions or ridges on a surface of the first part, which have longitudinal directions extending per ⁇ pendicularly to the inserted body.
  • the rotator has a first part which is movably mounted in relation to a re ⁇ tainer plate and can move in the transverse direction in relation to a body inserted in the device which is to be rotated.
  • the first part is arranged to contact a side of such an inserted body for rotating it.
  • An operating knob having a threaded shaft cooperating both with a threaded hole in the retainer plate and with the first part achieves a displacement of the first part when the knob is turned and thereby also a body inserted in the rotator will be rotated.
  • an end of a shaft attached to the operating knob can have a shape of a conical surface or a spherical ball can be arranged at one end of the shaft of the operating knob, this ball preferably being placed in a part- spherical cavity made in the first part.
  • the ball can then transfer the force from the operating knob and allows that the shaft of the operating knob is arranged in an angle to the movement direction of the first part, in particular an angle of 30 - 60°, preferably essentially 45°.
  • the first part has an essentially flat surface with which it contacts an inserted body and that the direction of the shaft of the operating knob forms an angle to this flat surface, in particular an angle of 30 - 60°, preferably essentially 45°.
  • the shaft of the operating knob extends in these cases advantageously essentially perpendicularly to a body placed in the rotator.
  • the cone angle of the shaft end of the operating knob should in the case comprising only a conical end of the operating knob shaft be essentially equal to the double value of the angle that the shaft forms to the movement direction of the first portion or the bottom surface of this part.
  • the operating knob having its shaft in such an angle it is easily available from the front side of the fiber rotator and an operator can easily perform the rather fine turning movements of the knob which can be required for ob ⁇ taining a rotation of an optical fiber to a definite angular position.
  • the operating knob gives for such a construction only an action on the first part in one direction and for achieving the second portion of the movement of the first part, the part of this movement which must be made in an opposite direction, return springs are arranged co ⁇ operating with the first part and the retainer plate.
  • the device has a base plate and a straight groove, in particular a V-groove or at least partly having the shape of a V-groove, and the groove is provided in a surface of the base plate and is intended for receiving a body which is to be rotated.
  • a first lid is provided which is hinged at the base plate and is capable of being swung down in order to be placed over at least a part of the surface of the base plate where the groove is provided.
  • a first part is arranged to be moved in the transverse direction in relation to a body which is placed in the device and is to be rotated, and it is arranged to contact a side of such an inserted body and to rotate, at contact therewith and in its movement, also the inserted body.
  • the device comprises a second lid which is also hinged at the base plate and is capable of being swung down in order to be placed over another part of the surface of the base plate where the groove is made.
  • the second lid is arranged to securely retain, in a swung-down position thereof, a cylindrical body inserted in the groove. It makes it possible to construct the device as having the shape of a standard retainer for an optical fiber to be used when splicing the fiber in a commercially available welding device of standard type.
  • the second lid can then comprise a release mechanism which is arranged, when it is operated, to swing the second lid upwards a small angle. Thereby a cylindrical body placed in the device can be released in order to be rotated by a movement of the first part.
  • the release mechanism is further advantageously arranged to swing, when it is operated, the second lid upwards only through such a small angle that a body placed in the groove of the device can ⁇ not leave the groove.
  • the rotator has a base plate and a straight groove, in particular at least partly having the shape of a V-groove.
  • the groove is made in a surface of the base plate and is intended to receive an optical fiber which is to be spliced.
  • a lid is hinged at the base plate and is capable of being swung down in order to be placed over at least a part of a surface of the base plate where the groove is made. The lid is arranged to securely retain, in a swung- down position thereof, a fiber placed in the groove.
  • a release mechanism is provided which is arranged to swing, when it is operated, the second lid up, through a small angle in order to release an optical fiber placed in the groove for allowing a movement thereof, in particular a rotation thereof.
  • the rotator can also in this case be constructed as a fiber retainer of standard type.
  • the rotator has a first part which is movably mounted in relation to a retainer plate, so that it can move in a transverse direction in relation to a body which is placed in the device and is to be rotated, and which part is arranged in a suitable manner, for example placed thereabove, in order to contact, with one surface thereof, a side of such an inserted body.
  • the first part comprises an interior, thick portion of an elastic, soft material, and an exterior thin portion. This exterior portion is at the same time that part with which the first part contacts an inserted body, and it is made of a thin hard material, in particular a rubber material, that has a good friction to the surface of the body which is to be rotated.
  • the interior portion and the exterior portion can be composed to an elastic, elongated cushion having for example a rectangular cross section and it can then be attached inside a groove or recess in the first part.
  • This recess has suitably a direction perpendicular to the longitudinal direction of the body to be rotated.
  • several such elongated cushions can be arranged, the longitudinal directions of which are parallel to each other and which all contact at the same time the free surface, for example the upper surface of an inserted body.
  • a first part is movably mounted in relation to a retainer plate, so that it can move in a transverse direction in relation to the inserted body to be rotated.
  • This part is arranged to contact, with a surface thereof, one side of such an inserted body and further the first part comprises on said surface at least two elongated protrusions, which are located in parallel to each other.
  • the elongated protrusions are advantageously surface portions of elongated parts of friction cushions attached inside parallel grooves in the first part.
  • an optical fiber is rotated about its longitudinal axis by executing the following steps. First a region of the fiber is placed in a fixedly arranged, straight groove, in particular at least partly having the shape of a V-groove, so that the fiber is straightened out inside this region and obtains an accurately straight configuration. Then the first part is made to contact, with a surface thereof having a high friction, the side of the fiber where it is not inserted inside the groove and at last the first part is displaced in a direction perpendicular to the longitudinal direction of the fiber.
  • the rotation can in particular be achieved by making the first part contact the free side of the fiber with several, parallel elongated and protruding regions, which are located at some distance from each other on the surface of the first part.
  • Fig. 1 is a front view of a device for retaining and rotating an optical fiber having a lid swung up and having certain portions removed,
  • Fig. 2 is a view similar to that of Fig. 1 having the lid swung down
  • Fig. 3a is a view from above of the device of Figs. 1 and 2 having the lid swung down,
  • Fig. 3b is a view from above of a base plate of the device of Figs. 1, 2, and 3a without lids,
  • Figs. 4 - 7 are sectional views of a base plate taken along lines at IV, V, VI and VII in Fig. 3b,
  • Fig. 8a is a rear view of a slide arranged in a lid
  • - Fig. 8b is a sectional view of a friction cushion in the slide
  • - Figs. 9 and 10 are sectional views of the device having swung-down lids taken along the lines at IX and X respectively in Fig. 3a
  • FIG. 11 is a perspective view of a sleeve used in the release mechanism in the lid illustrated in the sectional view of Fig. 10 and
  • Fig. 12 is a sectional view similar to that of Fig. 9 illustrating an alternative embodiment of a release mechanism.
  • Figs. 1 - 3a are views from above and from the front of a fiber rotator which is designed to have exterior measures like such a standard retainer for optical fibers that is used for splicing fibers in manual and automatic fiber welding devices.
  • the fiber rotator comprises a base part or base plate 1 having an elongated rectangular shape and two lids 3, 5, which are hinged at their rear edge at the base plate 1 at one of the long sides thereof, the rear long side, so that the lids can be swung down to the upper surface of the base plate 1 and be swung up therefrom.
  • a groove, generally referenced 7, is provided, see e.g. the view from above in Fig.
  • the base plate 1 that extends over the top surface of the base plate 1, in parallel to the long sides thereof.
  • At least the bottom of the groove 7 is made as a V- groove having a large precision, see particular the sectional views of Figs. 4 - 7, and the side surfaces of the V-groove 7 are located in some suitable angle, for example about 45°, in relation to the top surface of the base part 1.
  • all side surfaces of the portion of the groove which has the shape of a V-gropve are located in two accurately determined planes and they are well aligned over all of the base part 1.
  • various recesses are made in the top surface of the base part 1, so that the groove 7 and in particular the oblique side surfaces of the V-groove part portion obtain different heights in relation to the bottom of the V-groove.
  • top surface of the base part 1 is located in a normal, high position corresponding to the first lid 3, see the cross sectional view of the base part in Fig. 4.
  • an elongated recess 9 is arranged about the region of the groove 7 and this recess 7 is so deep that a fiber 11, see Fig. 4, placed in the groove, in its upper portion is free from the side surfaces of the groove 7 within this recessed region 9, i.e. so that the top part or top surface of the fiber is placed above the adjacent area of the top surface of the base part 1, here thus inside the recess 9.
  • a protrusion is provided, see the sectional view of Fig.
  • the groove 7 is rather deep and can have a cross section having the shape of a deep groove comprising parallel walls which connect to the oblique side surfaces of the groove portion at the downmost area.
  • the portion of the upper surface of the base plate 1 that corresponds to the second lid 5 is recessed in relation to the higher normal top surface corresponding to the first lid half 3.
  • the remaining portion of the groove 7 within this region corresponding to the second lid half 5 is only a V-groove, which is not, however, so shallow that an optical fiber placed in the groove 7 with its upper surface will be located above this top surface and thus above the sides in the groove 7.
  • four transverse recesses 18 are provided which are exactly so deep that still the groove 7 having a V-shape remains but an optical fiber placed in this groove will have its upper surface or side well exposed.
  • the transverse recesses 18 do not extend up to the front edge of the base plate 1.
  • the second lid half 5 can in the similar way as the first lid half 3, be kept securely in its swung-down position resting on the surface of the base part 1, by means of permanent magnets 19.
  • Figs. 1 and 2 the fiber rotator is shown as seen from the side having its second lid 5 swung up and its second lid 5 swung down respectively.
  • a slide 21 is visible that is movable in a recess 22 in the lower side of the second lid 5 along guides designed as cylindric pins arranged in the lid 5.
  • transverse portions are arranged, that are the lower portions of friction cushions 25, see also the view from the rear side of only the slide 21 in Fig. 8a.
  • the friction cushions 25 comprising the protruding portions are of an elastic material and have surfaces having a high friction to glass and can comprise an inner, softer elastic portion 25' and a harder surface layer 25" as is illustrated in the sectional view of Fig. 8b.
  • a friction cushion 25 has such a thickness and projects with its bottom surface so far that its exterior, i.e. its top surface, contacts an optical fiber placed in the groove 7, when the second lid 5 is swung down and held at the base part 1. Then, thus the harder surface layer 25" of the friction cushions will contact an inserted fiber.
  • the friction cushions 25 are secured in parallel grooves 27 in the lower side of the slide 21, see Fig.
  • the operating knob has a threaded shaft 37 cooperating with an interior thread in a hole 39 in the second lid half 5
  • the hole 39 is arranged having its axis in angle of 45° in relation to the lower side of the second lid half 5 and thus also in the same angle to the top surface of the base part 1 when the second lid 5 is swung down.
  • the threaded shaft 35 is at its free end made with a conically shaped point having a cone angle of 90°.
  • the operating knob 35 when the operating knob 35 is turned, for example in such a manner that the shaft 37 is screwed into the hole 39, the end of the shaft 39 will press against the slide 21 and move it counteracting the force from the compression springs 33.
  • the slide 21 will instead be moved towards the front side of the second lid 5 due to the force from the springs 31 and travel along the cylindric guide pins. Then, the bottom surfaces of the elastic friction pads are in contact with an optical fiber placed in the groove 7 and if it is free to rotate it will then also be rotated, still located inside the groove 7.
  • FIG. 12 An alternative embodiment of the rotating mechanism is illustrated by the sectional view of Fig. 12.
  • the threaded shaft 37' of the operating knob 35 has here a straight end surface cooperating with a metal ball 41 which is movably mounted in a recess 43, in the preferred embodiment a part-spherical cavity, for example a semispherical cavity, in the front side of the slide 21'.
  • a metal ball 41 which is movably mounted in a recess 43, in the preferred embodiment a part-spherical cavity, for example a semispherical cavity, in the front side of the slide 21'.
  • Fig. 10 a cross sectional view is illustrated of a special mechanism placed in the first lid half 3 for a controlled release thereof from the attraction force from the permanent magnets
  • the rotating mechanism comprises an operating knob 45 that has an inner shaft 47, which is partly enclosed by the very knob part, so that a circular groove 48 is formed therebetween.
  • a sleeve 49 is provided, that is illustrated in a perspective view in Fig. 11 and that is located in a hole in the first lid half 33 and at its lower edge, at the side directed towards the top side of the base plate 1 has an exterior flange 51, which rests in a corresponding, angular recess at the bottom edge of the hole.
  • the sleeve is securely anchored in the lid 3 and cannot be rotated.
  • a helical compression spring 53 in the groove 48 tends to separate the operating knob 45 and the sleeve 49 from each other.
  • a pin 55 is attached in a transverse bore in the operating knob 45 and in particular in the shaft 47 thereof and extends through a slot 57 through the main part of the sleeve 49.
  • the slot 57 has a width corresponding to the diameter of the pin 55, a peripheral extension of about 90° and has a somewhat oblique position, so that it is mainly located in a plane, that is somewhat rotated from a position perpendicular to the geometric axis of the sleeve, for instance forms an angle of about 15° to a plane perpendicular in relation to the axis of the sleeve.
  • the operating knob 45 can then only be turned a quarter of a full turn forwards and backwards due to the fact that the pin 53 extends through the slot 57 of the sleeve 49. Owing to the oblique position of the slot 57, thereby the whole operating knob 45 will be displaced somewhat upwards or downwards and in particular the interior shaft portion 47 thereof, which then will protrude more or less from the bottom side of the lid half 3.
  • the end of the shaft part 47 can in an end position be retracted completely inside the bottom side of the lid 3, so that this lid is entirely swung down and securely retains, by means of the elastic protrusion 13, a fiber placed in the device.
  • the shaft part 49 will however contact the flat top surface of the left part of the base part 1 and is pressed against it, whereby this lid half 3 is elevated and an inserted fiber is released in order to be capable of binge rotated by means of the fiber rotator portion in the second lid half 5.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Appareil de rotation de fibre composé de deux parties, une partie arrière utilisée pour maintenir la fibre pendant des opérations consistant à la dénuder, à la couper, etc., et une partie avant utilisée pour la rotation proprement dite de la fibre. Des moitiés de couvercle (3, 5) sont fixées par charnières au niveau de chaque partie sur une plaque de base (1), les couvercles étant maintenus dans des positions rabattues par des aimants (15, 17). Le couvercle arrière (3) peut être ouvert quelque peu par un mouvement de pivotement sur un faible angle, afin de libérer la fibre, de manière à permettre la rotation de cette dernière. Le mouvement de pivotement est obtenu à l'aide d'une poignée (45) que l'on peut faire tourner sur un angle correspondant approximativement à un quart de tour complet. Un élément faisant saillie (47) est vissé vers l'intérieur ou vers l'extérieur et permet de lever le couvercle arrière (3). Une coulisse mobile ou pièce rectangulaire (21) située dans le couvercle avant (5) agit sur une fibre placée dans une rainure (7) afin de la faire tourner lorsqu'on déplace la coulisse (21), et la rainure (7) a une forme en V peu profonde dans la région de la coulisse (21). Cette dernière comporte une couche de surface ou d'amortissement (25) en contact avec la fibre, présentant un coefficient de frottement élevé et composée de préférence de caoutchouc. La coulisse assure un bon contact avec la fibre lorsque le couvercle avant (5) est rabattu. La coulisse est déplacée dans une direction par un bouton (35) et dans la direction opposée par la force exercée par des ressorts de rappel (33).
PCT/SE1995/000697 1994-06-10 1995-06-09 Appareil de rotation de fibres a rainure stationnaire WO1995034835A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27583/95A AU2758395A (en) 1994-06-10 1995-06-09 Fiber rotator having a stationary groove

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9402024-5 1994-06-10
SE9402024A SE504259C2 (sv) 1994-06-10 1994-06-10 Anordning och förfarande för vridning av en långsträckt väsentligen cirkulärcylindrisk kropp omkring dess längsgående axel

Publications (1)

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WO1995034835A1 true WO1995034835A1 (fr) 1995-12-21

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PCT/SE1995/000697 WO1995034835A1 (fr) 1994-06-10 1995-06-09 Appareil de rotation de fibres a rainure stationnaire

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AU (1) AU2758395A (fr)
SE (1) SE504259C2 (fr)
WO (1) WO1995034835A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013143488A1 (fr) * 2012-03-31 2013-10-03 成都捷康特科技有限公司 Dispositif de soudage de fibres du type à découpe et positionnement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581671A1 (fr) * 1992-07-29 1994-02-02 Alcatel Cit Procédé de couplage d'une fibre optique à un composant optique sur un substrat commun

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0581671A1 (fr) * 1992-07-29 1994-02-02 Alcatel Cit Procédé de couplage d'une fibre optique à un composant optique sur un substrat commun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013143488A1 (fr) * 2012-03-31 2013-10-03 成都捷康特科技有限公司 Dispositif de soudage de fibres du type à découpe et positionnement

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Publication number Publication date
SE9402024D0 (sv) 1994-06-10
AU2758395A (en) 1996-01-05
SE504259C2 (sv) 1996-12-16
SE9402024L (sv) 1995-12-11

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