EP3124657B1 - Support d'une feuille flexible dans une carde a chapeaux mobiles - Google Patents

Support d'une feuille flexible dans une carde a chapeaux mobiles Download PDF

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Publication number
EP3124657B1
EP3124657B1 EP16175904.8A EP16175904A EP3124657B1 EP 3124657 B1 EP3124657 B1 EP 3124657B1 EP 16175904 A EP16175904 A EP 16175904A EP 3124657 B1 EP3124657 B1 EP 3124657B1
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EP
European Patent Office
Prior art keywords
bearing bolt
bearing pin
bearing
support according
axis
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Active
Application number
EP16175904.8A
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German (de)
English (en)
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EP3124657A1 (fr
Inventor
Willi Sigg
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP3124657A1 publication Critical patent/EP3124657A1/fr
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements
    • D01G15/30—Bends
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/28—Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements

Definitions

  • the present invention relates to a storage of a flexible bend in a revolving flat card.
  • the lid area together with the drum forms the main carding zone and has as function the dissolution of the flakes into single fibers, removal of impurities and dust, elimination of very short fibers, the dissolution of nits and the parallelization of the fibers.
  • hard covers, revolving lids or a mixture of fixed and revolving lids are used.
  • a revolving lids or a mixture of hard covers and revolving lids one speaks of a revolving flat card. Between the sets of covers and the clothing of the drum forms a narrow gap called the carding nip.
  • revolving lids by the revolving lids, guided by arcuate strips - so-called flexible arch, Regulierbogen, Flexbogen or Gleitbogen - are guided along a predetermined distance by these strips in the circumferential direction of the drum.
  • the size of the carding nip lies with a revolving flat card between 0.10 to 0.30 mm for cotton or up to 0.40 mm for man-made fibers.
  • the flexible bend is secured with adjusting screws on the machine frame.
  • the adjustment screws allow for a concentric adjustment of the flexible arch surface so that the traveling lids can be kept at a constant distance along the drum surface.
  • the setting accuracy depends on the design of the adjusting screws.
  • the EP 1 201 797 has proposed a device for adjusting the carding gap, in which the flexible sheet is supported on rotatably mounted rollers.
  • the rollers are designed as rotatable helical cams. Upon rotation of these cams is raised by the worm shape of the flexible bend at the corresponding support point and in the radial direction away from the drum axis or to these. In this way, a coarse adjustment of the carding nip is proposed.
  • the flexible sheet itself is moved in the drum rotation direction, which causes the radial distance of the flexible sheet to change from the drum axis.
  • a disadvantage of the device is that the entire flexible sheet must be moved to adjust the carding gap. In particular, the fine adjustment is provided by the movement of the flexible bend, which is associated with a considerable expenditure of force and thus only jerking can be performed.
  • the invention of the present application has for its object to provide a storage of a flexible arch which allows an adjustment of the carding at a single bearing point, as well as an adjustment of the carding at all bearing points of the flexible sheet together, both types of adjustment to use the same adjustment and wherein the adjustment of a single bearing should be possible without affecting the common adjustment.
  • a storage of a flexible sheet is proposed in a revolving flat card with a drum and a drum axis, wherein the bearing comprises at least three bearings, each with a bearing pin and an adjusting lever.
  • the flexible sheet is held at each bearing point on the respective bearing pin, that during a rotational movement of the bearing pin of the flexible sheet is moved radially to the drum axis.
  • the bearing pin has a bearing pin axis, a mounting portion, a movement portion and a support surface for the support of the flexible sheet, while the support surface is formed by a spiral around the bearing pin axis arranged surface.
  • the adjusting levers are connected to a common slider.
  • bearings For the support of a flexible arch several support points, so-called bearings are provided.
  • the number of bearings depends on the design of the flexible sheet, in particular its length.
  • the bearings may be arranged symmetrically or asymmetrically with respect to the flexible arch.
  • more than three bearing points for example five or seven bearing points, are necessary.
  • the storage of the flexible sheet is done so that the sliding on it Travel lids are guided in the desired type of drum surface along.
  • the flexible bend is held by a bolt at each bearing point.
  • the bolt itself is rotatably mounted in the machine frame of Wanderdeckelkarde, this, the bolt on a mounting portion.
  • the attachment portion of the bolt is designed such that adjoins the movement portion on one side of the attachment portion and on the other side of the attachment portion, the support surface for the flexible bend.
  • the attachment portion is arranged in the direction of the bearing pin axis between the movement portion and the support surface.
  • the attachment portion is bisected by the support surface disposed within the attachment portion. The bearing pin is thereby held in two places in the machine frame, wherein between these two points the support surface for the flexible sheet is arranged. This has the advantage that the bearing points of the bearing pin is stressed only by forces in one direction and no torques occur. In a one-sided storage act on the bearing bolt in addition bending forces, which can be avoided by a two-part mounting portion.
  • the bearing surface is spirally applied around the bearing pin axis.
  • the radial distance of the support surface changes by a certain amount, which is dependent on the spiral shape of the support surface.
  • the usable bearing surface does not extend over the entire circumference of the bearing pin due to the helical design.
  • the flexible sheet can be changed in its distance from the drum axis in a range of 2 to 10 mm. This change in the radial distance of the flexible sheet from the drum axis corresponds to the necessary change in the distance of the support surface from the bearing pin axis.
  • the distance of the bearing surface from the bearing pin axis likewise changes by 2 to 10 mm.
  • the spiral shape is, for example, created such that the change in the distance during at least half the circumference of the bearing pin results.
  • the radial distance of the bearing surface of the bearing pin axis thus changes, for example, by an amount of 2 to 10 mm with a rotation of the bearing pin by 180 °.
  • a change in the distance of 4 to 8 mm is to be striven for, as has shown a particularly advantageous change in the distance of 6 mm.
  • the spiral shape of the support surface is an Archimedean spiral.
  • An Archimedean spiral has a continuous slope. This has the advantage that the rotation of the bearing pin by a certain angle always causes the same change in the radial distance of the support surface, regardless of the position of the bearing pin.
  • the flexible sheet on a bearing surface of the bearing pin facing side has a support surface which is formed as a plane
  • the flexible sheet is located tangentially on the spiral bearing surface of the bearing pin.
  • the line of movement along which the rotation of the bearing pin, the displacement of the flexible sheet is therefore not identical to the perpendicular to the tangent on which the flexible sheet rests.
  • the perpendicular to the tangent of the support point of the flexible bend is at a certain angle to the displacement line along which the flexible bend by the rotation of the bearing pin is moved.
  • the spiral shape of the support surface of the bearing pin is provided such that, despite the difference between the support point of the flexible sheet on the bearing pin and the line of movement, a linear dependence between the rotation angle of the bearing pin and the distance ( A) exists between the bearing pin axis and the flexible bend in the direction of movement of the flexible bend.
  • the adjusting lever is held on the moving portion of the bearing pin.
  • the adjusting lever is rotatably held on the bearing pin with a releasable locking.
  • the lock comprises a locking screw and a two-piece clamping bolt.
  • the clamping bolt is aligned in its shape along its longitudinal axis at least on one side of the shape of the bearing pin. Now, if the two halves of the clamping bolt pulled together, this causes a distortion of the clamping bolt against the bearing pin.
  • a device which allows rotation of the bearing pin independent of the adjusting lever and independently of the other respective bearing points.
  • the movement portion of the bearing pin is provided at least partially with a toothing on its circumference.
  • an adjusting member is provided in the adjusting lever, which forms a reduction stage (such as a worm drive) with the toothing on the circumference of the bearing pin. With the adjustment can thus over the reduction stage of the bearing pin set in rotation and thus the flexible sheet are brought into the desired basic position.
  • the adjusting lever is in turn rotatably connected via the lock with the adjusting lever.
  • the adjusting levers of the individual bearings are connected to a common slider. This connection causes the adjustment lever and the lock and the bearing pin are held against rotation.
  • the holder of the adjusting lever in the slide is designed via a arranged in the slide radially aligned guide. On the adjusting lever a guide pin is provided, which engages in the guide groove. If the slider is now moved tangentially to the drum axis, this movement is transmitted via the guide pins on the adjusting lever and leads to a rotation of the adjusting lever about the bearing pin axis. By locking the adjusting lever on the bearing pin, the rotation of the adjusting lever is transmitted to the bearing pin. As a result, by the rotation of the bearing pin of the flexible bend in all bearings simultaneously and due to the spiral bearing surface of the bearing pin in all bearings shifted by the same amount radially. The shift is independent of the current individual setting of the individual bearings.
  • the slide is provided with a drive.
  • a drive This allows automatic adjustment of the flexible bend by a central control.
  • the tangential movement of the slider is in a fixed relationship to the displacement of the flexible bend.
  • the movement of the slider is translated, whereby a large movement of the slider leads to a small displacement of the flexible bend. This allows a high accuracy in the adjustment of the flexible sheet in steps of less than 0.01 mm.
  • a cover actuator can be operated with the aid of the slide.
  • a lid actuator is used for automatic adjustment of the carding gap between the revolving lids and the drum of a card. If the trimmings of the drum or the sets of the revolving cover are reground, for example, this change in the carding gap is detected by the measuring device of the controller and compensated automatically via the slide.
  • FIG. 1 a known revolving flat card 1 is shown, wherein flakes are fed from a hopper 2 a fiber feeding device 3 and a subsequent drum 4.
  • the revolving flat card 1 comprises a single drum 4 (master cylinder or so-called drum), which is rotatably supported in a machine frame 5.
  • the drum 4 works in a known manner with a traveling lid assembly 6, a fiber feeding device 3, and a fiber pickup 8 together, the latter in particular has a so-called takers 9.
  • Carding elements and fiber guiding elements which are not shown here in detail, can be arranged between the revolving lid arrangement 6, the fiber feeding device 3 and the fiber dispensing system 8.
  • the fiber-receiving system 8 conveys the sliver 10 to a schematically indicated sliver storage 11.
  • traveling lid assembly 6 a plurality of traveling lids 13 is provided, wherein in the FIG. 1 only individual moving lid 13 are shown schematically.
  • traveling lid assemblies 6 include closely spaced a plurality of traveling lids 13 that circulate.
  • the moving lid 13 are supported in the vicinity of their respective end faces of endless belts 12 and moved against or with the direction of rotation of the drum 4.
  • the support takes place on flexible sheet 7 on the underside of the revolving cover assembly 6. Sliding on the flexible sheet 7, the moving lid 13 are guided along the drum surface.
  • FIG. 2 shows a schematic representation of an embodiment of a bearing 20 of a flexible sheet 7 according to the invention.
  • the flexible sheet 7 is shown in sections and stored on a plurality of bearings 20.
  • At the bearing 20 of the flexible sheet 7 is held on a bearing pin 21.
  • the bearing pin 21 is shown in section, so that the support surface 24 is shown on which the flexible sheet 20 rests.
  • the support surface 24 of the bearing pin 21 is arranged spirally around the bearing pin axis 25.
  • the bearing pin axis 25 is the axis of rotation of the bearing pin 21.
  • the bearing pin 21 is rotatably mounted in the machine frame (not shown) so that the axis of rotation, respectively the bearing pin axis 25, is held stationary.
  • the adjusting lever 26 is in turn held with a guide pin 30 in a guide groove 34 of a slider 35.
  • FIG. 3 shows in a schematic sectional view at the point ZZ after the FIG. 2 an embodiment of a bearing 20 according to the invention in a view.
  • the bearing pin 21 has a movement section 22, a fastening section 23 and a bearing surface 24. On the support surface 24, which has a distance A from the bearing pin axis 25 depending on the position, the flexible sheet 7 is supported.
  • the mounting portion 23 of the bearing pin 21 is rotatably mounted in the machine frame 5.
  • the bearing pin 21 has a diameter D which corresponds to at least twice the maximum possible distance B of the bearing surface 24 from the bearing pin axis 25 (for the largest possible distance B max see FIG. 7 ).
  • an adjusting lever 26 is arranged in the movement section 22 of the bearing pin 21, in the movement section 22 of the bearing pin 21, an adjusting lever 26 is arranged.
  • the adjusting lever 26 is rotatably connected via the lock 27 with the bearing pin 21.
  • the bearing pin 21 is at least partially provided with a toothing 28 in the movement section 22. In this toothing 28 engages the adjusting lever 26 mounted adjusting member 29.
  • guide pin 30 is provided for rotationally fixed mounting of the adjusting lever 26 is mounted on the adjusting lever 26 .
  • the guide pin 30 is held by the slider 35 (see FIG FIG. 2 ).
  • FIG. 4 shows a schematic sectional view at the point X after the FIG. 3 ,
  • the bearing pin 21 is shown in the movement section 22 at the location with the toothing 28.
  • the toothing 28 is guided only over a part of the circumference of the bearing pin 21, namely over the part of the circumference, which corresponds to the spiral shape of the bearing surface of the bearing pin 21.
  • the adjusting member 29 mounted in the adjusting lever 26 engages with its worm toothing in the toothing 28, which leads to a rotation of the bearing pin 21 upon rotation of the adjusting member 29.
  • the adjusting lever 26 is secured via the guide pin 30 against rotation.
  • the adjusting member 29 is provided with a head, which is designed for the use of a tool or can be operated by hand.
  • FIG. 5 shows a schematic sectional view at the point Y after the FIG. 3 ,
  • the bearing pin 21 is shown in the movement section 22 at the location with the lock 27 of the adjusting lever 26.
  • the lock 27 consists of two clamping bolt halves 31, 32 which are inserted into a bore in the adjusting lever 26.
  • a first clamping bolt half 31 is introduced from the one side of the bearing pin 21 and a second clamping bolt half 32 from the opposite side of the bearing pin 21 in the bore in the adjusting lever 26.
  • With a locking screw 33 With a locking screw 33, the two clamping bolt halves 31, 32 are pulled together, while the first clamping bolt half 31 is provided with a corresponding internal thread.
  • the two clamping bolt halves 31, 32 are provided in the region of the bearing pin 21 with a corresponding to the bearing pin Anformung, so that by the contraction of the clamping bolt halves 31, 32 of the adjusting lever 26 rotatably supported on the bearing pin 21.
  • the same effect could also be achieved in that one side of the adjusting lever 26 is made elastic and with the locking screw 33 of the elastic region of the adjusting lever 26 are pulled together with the rigid region of the adjusting lever 26 and thereby the adjusting lever 26 is rotatably connected to the bearing pin 21.
  • FIG. 6 shows a schematic sectional view of another embodiment at the point ZZ after the FIG. 2 a bearing 20.
  • the bearing surface 24 of the bearing pin 21 is disposed within the mounting portion 23.
  • the attachment portion 23 adjoins the movement portion 22 and is interrupted by the support surface 24.
  • the diameter D of the bearing pin 21 corresponds to the movement section 22 side facing the diameter D of the FIG. 3 .
  • the bearing pin 21 has a smaller diameter d, which is smaller than twice the minimum distance B min of the bearing surface 24 of the bearing pin axis (see FIG. 7 ).
  • the execution of the movement section 22 with the adjusting lever 26 corresponds to the embodiment according to FIG.
  • an adjusting lever 26 is arranged in the movement section 22 of the bearing pin 21, in the movement section 22 of the bearing pin 21, an adjusting lever 26 is arranged.
  • the adjusting lever 26 is rotatably connected via the lock 27 with the bearing pin 21.
  • the bearing pin 21 is at least partially provided with a toothing 28 in the movement section 22. In this toothing 28 engages the adjusting lever 26 mounted adjusting member 29.
  • guide pin 30 is provided for rotationally fixed mounting of the adjusting lever 26 is mounted on the adjusting lever 26 guide pin 30 is provided.
  • the bearing pin 21 is mounted in its mounting portion 23 on both sides of the support surface 24 in the machine frame 5.
  • FIG. 7 shows a schematic representation of a bearing 20.
  • the bearing pin 21 with the spiral bearing surface 24 is rotatably held in its bearing pin axis 25 stationary in the machine frame.
  • the flexible sheet 7 rests tangentially on the bearing surface 24 of the bearing pin 21 with its supporting surface formed as a plane.
  • This support point 40 determines the distance B ( ⁇ + ⁇ ) of the bearing surface 24 of the bearing pin axis 25 measured in a rotated by the angle ⁇ to the direction of movement 37 of the flexible sheet 7 plane.
  • this distance B ( ⁇ + ⁇ ) of the flexible sheet 7 from the bearing pin axis 25 does not coincide with the radial distance A ( ⁇ ) of the bearing surface 24 from the bearing pin axis 25 in the direction of movement 37 of the flexible sheet 7.
  • the flexible sheet 7 on one of the bearing surface 24 of the bearing pin 21 facing side has a support surface which is formed as a plane
  • the flexible sheet 7 is tangent to the spiral bearing surface 24 of the bearing pin 21 on the support point 40.
  • the support point 40 of the flexible sheet 7 is rotated by an angle ⁇ to the line of movement 41 of the flexible sheet 7.
  • the spiral bearing surface 24 of the bearing pin 21 is formed such that at a rotation of the bearing pin 21, the distance A ( ⁇ ) of the flexible sheet 7 to a changes from the angle of rotation ⁇ linearly dependent amount. This results in the change of the distance A ( ⁇ ) from a multiple of a constant with the change of the rotation angle a.
  • the spiral bearing surface 24 extends after FIG. 7 over half the circumference of the bearing pin 21. This results in a smallest possible distance B ( ⁇ + ⁇ ) to B min and a maximum distance B ( ⁇ + ⁇ ) to B max .
  • B min and B max results in the maximum possible adjustment of the flexible bend 7 on its movement line 41.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (14)

  1. Ensemble de palier d'un arc flexible (7) dans une carde à chapeaux (1) avec un tambour (4) et un axe de tambour, dans lequel l'ensemble de palier comprend au moins trois points d'appui (20) avec respectivement un boulon de palier (21) et un levier de manoeuvre (26), dans lequel l'arc flexible (7) est maintenu à chaque point d'appui (20) sur les axes de palier (21) de telle sorte qu'en cas de rotation (22) du boulon de palier (21), l'arc flexible (7) est déplacé radialement par rapport à l'axe de tambour, dans lequel le boulon de palier (21) présente un axe de boulon de palier (25), une portion de fixation (23), une portion de mouvement (22) et une surface d'appui (24) pour l'appui de l'arc flexible (7) et la surface d'appui (24) est formée par une surface disposée en spirale autour de l'axe de boulon de palier (25), caractérisé en ce que les leviers de manoeuvre (26) sont reliés par un coulisseau (35) commun.
  2. Ensemble de palier selon la revendication 1, caractérisé en ce que la forme en spirale est une vis d'Archimède, et par conséquent, une diminution ou une augmentation de la distance radiale (B) de la surface d'appui (24) par rapport à l'axe de boulon de palier (25) est linéaire à l'angle de rotation en cas de rotation du boulon de palier (21).
  3. Ensemble de palier selon la revendication 1, caractérisé en ce que la forme en spirale de la surface d'appui (24) du boulon de palier (21) est prévue de telle sorte qu'il existe une dépendance linéaire entre l'angle de rotation (a) du boulon de palier (21) et la distance (A) entre l'axe de boulon de palier (21) et l'arc flexible (7) dans le sens de la marche (37) de l'arc flexible (7).
  4. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que la distance radiale (B) de la surface d'appui (24) diminue ou augmente de 5 % à 30 % en forme de spirale par rapport à l'axe de boulon de palier (25) sur l'étendue de celui-ci sur au moins une demi-circonférence du boulon de palier (21).
  5. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion de fixation (23) est disposée en direction de l'axe de boulon de palier (25) entre la portion de mouvement (22) et la surface d'appui (24).
  6. Ensemble de palier selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la portion de fixation (23) est séparée en deux parties par la surface d'appui (24) disposée à l'intérieur de la portion de fixation (23).
  7. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que le levier de manoeuvre (26) est maintenu sur la portion de mouvement (22) du boulon de palier (21).
  8. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que le levier de manoeuvre (26) est maintenu sur le boulon de palier (21) en étant verrouillé en rotation par un dispositif d'arrêt amovible (27).
  9. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que la portion de mouvement (22) du boulon de palier (21) est au moins partiellement munie d'une denture (28) sur sa circonférence.
  10. Ensemble de palier selon la revendication 9, caractérisé en ce que dans le levier de manoeuvre (26) est prévu un élément de réglage (29) constituant un engrenage à vis sans fin avec la denture (28) sur la circonférence du boulon de palier (21).
  11. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface d'appui (24) présente une distance radiale maximale (Bmax) par rapport à l'axe de boulon de palier (25) qui n'est pas supérieure à un demi-diamètre (D) du boulon de palier (21) dans la portion de fixation (23) de celui-ci.
  12. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que les leviers de manoeuvre (26) sont maintenus dans une rainure de guidage (34) orientée radialement par une tige de guidage (30) dans le coulisseau (35).
  13. Ensemble de palier selon l'une quelconque des revendications précédentes, caractérisé en ce que le coulisseau (35) est muni d'un entraînement (36).
  14. Carde à chapeaux (1) avec un tambour (4) muni d'une garniture de tambour, et avec un agencement de chapeaux (6) composé d'une pluralité de chapeaux (13) reliés entre eux et guidés sur un arc flexible (7), caractérisée en ce que l'arc flexible (7) est équipé d'un ensemble de palier selon l'une quelconque des revendications 1 à 13.
EP16175904.8A 2015-07-31 2016-06-23 Support d'une feuille flexible dans une carde a chapeaux mobiles Active EP3124657B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01111/15A CH711367A1 (de) 2015-07-31 2015-07-31 Lagerung eines Flexibelbogens in einer Wanderdeckelkarde.

Publications (2)

Publication Number Publication Date
EP3124657A1 EP3124657A1 (fr) 2017-02-01
EP3124657B1 true EP3124657B1 (fr) 2019-10-16

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US (1) US10240261B2 (fr)
EP (1) EP3124657B1 (fr)
CN (1) CN106400213B (fr)
CH (1) CH711367A1 (fr)

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DE102019110699A1 (de) * 2019-04-25 2020-10-29 Trützschler GmbH & Co Kommanditgesellschaft Karde mit einer Vorrichtung zur Einstellung des Kardierspaltes
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CH720597A1 (de) 2023-03-10 2024-09-30 Rieter Ag Maschf Verfahren zum Betrieb einer Wanderdeckelkarde

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CH698689A2 (de) * 2008-03-20 2009-09-30 Rieter Ag Maschf Flexibelbogen für eine Wanderdeckelkarde sowie Wanderdeckelkarde.
CH703251A1 (de) * 2010-06-02 2011-12-15 Rieter Ag Maschf Vorrichtung zur Einstellung eines Kardierspaltes in einer Wanderdeckelkarde.
CH703250A1 (de) * 2010-06-02 2011-12-15 Rieter Ag Maschf Lagerung eines Flexibelbogens in einer Wanderdeckelkarde.

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Also Published As

Publication number Publication date
CN106400213B (zh) 2021-03-12
CN106400213A (zh) 2017-02-15
CH711367A1 (de) 2017-01-31
US10240261B2 (en) 2019-03-26
US20170029984A1 (en) 2017-02-02
EP3124657A1 (fr) 2017-02-01

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