EP1730338B1 - Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique - Google Patents

Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique Download PDF

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Publication number
EP1730338B1
EP1730338B1 EP05744359A EP05744359A EP1730338B1 EP 1730338 B1 EP1730338 B1 EP 1730338B1 EP 05744359 A EP05744359 A EP 05744359A EP 05744359 A EP05744359 A EP 05744359A EP 1730338 B1 EP1730338 B1 EP 1730338B1
Authority
EP
European Patent Office
Prior art keywords
flanges
core
lever
flange
rollers
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.)
Active
Application number
EP05744359A
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German (de)
English (en)
French (fr)
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EP1730338A1 (fr
Inventor
Jean-Pierre Pages
Bastien Tardy
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Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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Publication date
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Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP1730338A1 publication Critical patent/EP1730338A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/49295—Push rod or rocker arm making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18288—Cam and lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

Definitions

  • the present invention relates to a follower lever lever used in cam armor mechanics as well as to a method of manufacturing such a lever.
  • the invention also relates to a cam armor mechanism comprising such a lever and to a loom equipped with such a mechanism.
  • camming armor mechanics which comprise a series of oscillating levers in number equal to that of the frames of healds to be mounted on the looms, each oscillating lever being intended to be hitched to the loom.
  • one of the frames and equipped with two rollers which cooperate with the two tracks of a complementary cam driven in rotation by a common shaft.
  • the conjugate tracks of the same cam are offset axially and the rollers carried by the associated lever must have the same axial offset as the tracks of the cam.
  • EP-A-0 225 266 it is known, for example EP-A-0 225 266 , to mount the rollers of a lever cantilevered on both sides of a soul. This generates moments of torsion or cant on the axes that support the rollers, which induces bending, mechanical fatigue or even breakage of these elements and a loss of precision during operation.
  • EP-A-0 225 266 proposes also to mount the rollers of a lever in grooves machined in massive cores of relatively large thickness. Such a technique is very expensive, especially since the soul of the lever is relatively bulky.
  • FR-A-2,317,395 it is known to FR-A-2,317,395 to achieve a lever formed essentially of two flanges provided with steps. It is, moreover, known to FR-A-2,259,173 to mount the rollers of a lever clevis between two pairs of flanges arched and mounted in opposition. The steps and cambrages of the main parts of the flanges of the known levers are supposed to compensate for the offset between the rollers and the median plane of the lever. In practice, they are subjected to bending forces that are too high for the sheets that constitute them, which causes them to deform or even break.
  • the invention more particularly intends to remedy by proposing a new lever with follower rollers which allows an axial offset of the rollers, in order to allow their alignment with the conjugate tracks of a complementary cam, and in which it it is not necessary to provide steps or cambrages likely to deform under load.
  • the invention relates to a cam follower mechanism follower lever, this lever being equipped with two rollers supported by a core, while these rollers are each mounted between two flanges of a pair of flanges reported. on this core, characterized in that these flanges are generally planar, in that a first flange of each pair of flanges is partially engaged in a hollow recess formed on a lateral face of this core, while the second flange of the same pair is kept at a distance from the first, and in that the hollow recesses provided for the first flanges of the two pairs of flanges are formed on the two opposite side faces of the lever core.
  • the axial displacement of the two follower rollers of the lever is obtained by a suitable positioning of the hollow recesses formed on the core of the lever, whereas the flanges which are generally flat are not likely to deform at the level of a camber or step.
  • a spacing spacer of the second flange and the core may be provided.
  • the second flange is provided with a support heel on the core of the lever, this heel for maintaining a main portion of the second flange at a distance from a main portion of the first.
  • it is the soul itself which is provided with at least one support heel, the second flange, this heel also to maintain at a distance the main parts of the flanges.
  • the respective median planes of the rollers are parallel, located on either side and substantially equidistant from the median plane of the soul of the lever.
  • each roller can be mounted around its respective axis of articulation by means of a roller bearing whose rollers are held in position by means of two plates arranged on either side. of this axis, between this axis and each of the flanges of the same pair, these plates extending radially, from this axis, at least up to the level of the rollers of the bearing, a part of the axis and plates forming a stack immobilized between the flanges.
  • a spacing spacer between another flange of each pair and the core of the lever. It can further be provided that, during step d, lateral support plates are engaged between the flanges of rollers forming a bearing between the roller and its axis of articulation.
  • the invention also relates to a cam armor mechanism which comprises at least one lever as described above or manufactured according to the method described above.
  • a cam armor mechanism which comprises at least one lever as described above or manufactured according to the method described above.
  • Such a mechanism can operate at a higher speed and be more reliable than those of the state of the art because its levers with follower rollers are not likely to deform, including under load and at high speed.
  • the invention relates to a loom equipped with a weave mechanism as mentioned above, such a job being easier to implement than the known trades.
  • the trade M represented at figure 1 consists of several frames of slats of which only one is represented at figure 1 .
  • the various frames of the trade M are driven by a vertical oscillation movement represented by the double arrow F 1 and printed by a cam mechanism 10 whose output levers 11 respectively attack connecting rods 12 associated with angled levers 13 connected between they and the frame 1 by connecting rods 14.
  • the levers 11 are provided in number equivalent to the number of hinged frames 1 and mounted pivoting, as represented by the double arrow F 2 , around a common shaft 15 supported by the frame 16 of the mechanical 10 and protected by a cover 17 shown in phantom.
  • the mechanism 10 also comprises a plurality of complementary cams, only one of which is represented with reference numeral 18 and which each define two conjugate tracks 18A and 18B on which two rollers 20A and 20B supported respectively by a lever 11 respectively bear.
  • Each lever 11 comprises a core 21 of steel which forms an extension 21A on which is coupled one of the connecting rods 12.
  • the core 21 also defines a mounting bore 21B on the shaft 15. This bore must be precisely defined to allow proper positioning of the lever 11 relative to its environment.
  • the rollers 20A and 20B must have their respective median planes P 20A and P 20B disposed on either side of the plane P 21 .
  • the median planes P 20A and P 20B are planes perpendicular to the axes of rotation X 20A and X 20B of the rollers 20A and 20B and situated equidistant from the sides of these rollers.
  • the core 21 is equipped with two flanges 22A and 23A forming a pair disposed on either side of the roller 20A and the core 21.
  • the flange 22A which is generally plane is partially engaged in a depression 21C formed on the lateral face 21D of the core 21 opposite to that on the side of which is the median plane P 20A with respect to the median plane P 21 .
  • the depression 21C is formed in the thickness of the core 21 and makes it possible to receive a part of the flange 22A whose edge 22A1 has substantially the same geometry as the edge 21C1 of the depression 21C, which assists in the positioning of the flange 22A during assembly of the lever 11 and gives a high rigidity to the assembly.
  • the flange 23A is disposed opposite the flange 22A relative to the roller 20A and is kept away from the flange 22A by a shim or spacer 24A inserted between the flange 23A and the side face 21F of the core 21 opposite the face 21D .
  • the flanges 22A and 23A which are planar, define between them a volume of thickness E for receiving the roller 20A offset from the median plane P 21 21.
  • the roller 20A has a thickness slightly less than the value of E.
  • roller 20B is housed between two flanges 22B and 23B of a pair of flanges mounted on either side of the core 21, the flange 22B being partially engaged in a depression 21G formed in the thickness of the soul 21 on the side of the face 21F.
  • a wedge spacer 24B keeps the flange 23B away from the face 21D and the flange 22B, which defines a receiving housing of the roller 20B offset from the plane P 21 opposite the housing receiving the roller 20A.
  • the flanges 22A, 22B, 23A and 23B are planar, they do not have a preferred deformation zone and have a sufficient rigidity to effectively maintain the rollers 20A and 20B after having been riveted on the core 21 by means of rivets 26.
  • the spacers 24A and 24B are sandwiched between the core 21 and the flanges 23A and 23B respectively.
  • the median planes P 20A and P 20B are parallel, located on either side of the plane P 21 and substantially equidistant from it.
  • the roller 20B is constituted by a ring mounted around a composite fixed axis 27B which is formed of an annular piece 27B1 and a rivet 27B2 immobilizing the part 27B1 relative to the flanges 22B and 23B. Between the elements 20B and 27B1 are arranged rollers 28B forming a bearing allowing rotation with little friction of the roller 20B.
  • two plates 29B1 and 29B2 are provided on either side of the part 27B1 between this part and the flanges 22B and 23B respectively, these plates extending radially. at least up to the level of the rollers 28B, which gives the bearing formed by these rollers good stability, even as the flanges 22B and 23B do not cover the rollers in an area of the roller which is intended to be engaged between certain parts of cam 18, as is apparent from the figure 3 .
  • the fastening of the rivet 27B2 thus makes it possible to create, with the elements 22B, 23B, 29B1, 29B2 and 27B1, a fixed and robust structure allowing the support, the guiding and the rotation of the rollers 28B and the roller 20B.
  • rollers 28A are arranged between the rollers 20A and an annular part 27A1 belonging to its hinge axis 27A and immobilized between the flanges 22A and 23A by means of a rivet 27A2.
  • Holding plates, only one of which is visible at figure 2 with the reference 29A2 can keep in place the rollers 28A, including the part of the bearing thus formed which exceeds the volume between the flanges 22A and 23A.
  • the manufacture of the lever 11 takes place by creating a blank of the core 21 which is substantially in accordance with the finished part.
  • the flanges 22A, 23A, 22B and 23B are then mounted on the core 21 in the positions indicated above. It is then possible to pierce in the flanges 22A, 23A, 22B and 23B the passage bores of the rivets 27A2 and 27B2. It may be possible to then finish the bore 21B previously roughed.
  • is the relative position of these bores defined precisely and does it take into account any inaccuracies in mounting the flanges on the core 21.
  • This mounting method is particularly simple and fast and provides a precise relative positioning of the axes of rotation of the rollers with each other and with respect to the core of each lever.
  • each of the flanges 23A and 23B is provided with a heel 23A1 or 23B1 which makes it possible to maintain a sufficient gap E between the flanges. 22A and 23A, on the one hand, 22B and 23B, on the other hand, so that the rollers 20A and 20B are offset on either side of the median plane P 21 of the core 21.
  • the flanges 23A and 23B can be considered as generally planar insofar as they are planes on the largest part of their surface which is opposite the rollers 20A and 20B.
  • the depressions 21C and 21G are formed on two opposite faces 21D and 21F of the core 21, the 21J and 21K heels being also formed on these two opposite faces.
  • the 21J and 21K heels make it possible to maintain a sufficient gap E between the flanges 22A and 23A, on the one hand, and 22B and 23B, on the other hand.
  • the levers of the second and third embodiments may be assembled according to a method similar to that described in correspondence with the first embodiment.
  • the flanges may have the same thickness or different thicknesses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Looms (AREA)
  • Braking Arrangements (AREA)
  • Woven Fabrics (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Moulding By Coating Moulds (AREA)
EP05744359A 2004-03-29 2005-03-25 Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique Active EP1730338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0403219A FR2868091B1 (fr) 2004-03-29 2004-03-29 Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique
PCT/FR2005/000724 WO2005098106A1 (fr) 2004-03-29 2005-03-25 Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique

Publications (2)

Publication Number Publication Date
EP1730338A1 EP1730338A1 (fr) 2006-12-13
EP1730338B1 true EP1730338B1 (fr) 2009-12-30

Family

ID=34944510

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05744359A Active EP1730338B1 (fr) 2004-03-29 2005-03-25 Levier a galets suiveurs pour mecanique d'armure et son procede de fabrication, mecanique d'armure comprenant un tel levier et metier a tisser equipe d'une telle mecanique

Country Status (10)

Country Link
US (1) US7748291B2 (zh)
EP (1) EP1730338B1 (zh)
JP (1) JP2007530814A (zh)
KR (1) KR101190698B1 (zh)
CN (1) CN1938463B (zh)
AT (1) ATE453745T1 (zh)
BR (1) BRPI0509253B1 (zh)
DE (1) DE602005018618D1 (zh)
FR (1) FR2868091B1 (zh)
WO (1) WO2005098106A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005010175A1 (de) * 2005-03-05 2006-09-14 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Maschinenteil, insbesondere Umlenkhebel für Weblitzenrahmen einer Webmaschine
US9506545B2 (en) 2013-03-15 2016-11-29 John W. Klovstadt Continuously variable transmission having a periodic displacement waveform with a constant velocity portion
CN105590716B (zh) * 2016-03-11 2017-06-20 苏州易利耐机电科技有限公司 “电子凸轮”摆动式多臂机的专用电磁铁
FR3103235B1 (fr) * 2019-11-15 2021-11-26 Staubli Sa Ets Roulement pour machine de formation de la foule ou système de transmission de mouvement, levier de mécanique d’armure comprenant un tel roulement et machine de formation de la foule comprenant un tel levier ou un tel roulement
FR3111361B1 (fr) 2020-06-11 2022-07-29 Staubli Sa Ets Levier de sortie à galets suiveurs de mécanique d’armure à cames et son procédé de fabrication, machine de formation de la foule équipée d’un tel levier et métier à tisser équipé d’une telle machine
CN113529232A (zh) * 2021-08-10 2021-10-22 绍兴通用提花机械有限公司 一种改进型起综箱

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2259173B1 (zh) * 1974-01-28 1977-03-04 Amigues Lucien
CH581214A5 (zh) * 1974-07-30 1976-10-29 Sulzer Ag
CH594082A5 (zh) 1975-07-10 1977-12-30 Albatex Ag
IT1147154B (it) * 1981-04-23 1986-11-19 Sasio Spa Leva scatolare leggera in particolare per azionamenti a camma obbliga
JPS61159378U (zh) * 1985-03-26 1986-10-02
FR2590913B1 (fr) * 1985-12-04 1988-01-08 Staubli Sa Ets Levier a galets pour les mecaniques a cames positives destinees a la commande des cadres de lisses des metiers a tisser
US4682474A (en) 1986-07-28 1987-07-28 Whirlpool Corporation Temperature responsive baffle control circuit for a refrigerator
CN2088111U (zh) * 1991-03-12 1991-11-06 国营咸阳纺织机械厂 一种喷气织机凸轮开口装置
FR2679264B1 (fr) * 1991-07-15 1993-12-03 Staubli Ets Mecanisme de tirage a leviers oscillants interpose entre une mecanique d'armure et les cadres de lisses d'un metier a tisser.
JP3320841B2 (ja) * 1992-07-10 2002-09-03 シュトイブリー・ファベルゲ 織機に使用されるカム機構
JPH07243146A (ja) * 1994-03-07 1995-09-19 Yamada Dobby Co Ltd カム開口装置のカムローラ
CN2483403Y (zh) * 2001-05-10 2002-03-27 高邮市新型纺机有限公司 喷水织机积极式凸轮开口装置

Also Published As

Publication number Publication date
FR2868091B1 (fr) 2006-05-26
US20080236330A1 (en) 2008-10-02
CN1938463B (zh) 2010-12-08
DE602005018618D1 (de) 2010-02-11
KR20060132960A (ko) 2006-12-22
CN1938463A (zh) 2007-03-28
ATE453745T1 (de) 2010-01-15
FR2868091A1 (fr) 2005-09-30
JP2007530814A (ja) 2007-11-01
EP1730338A1 (fr) 2006-12-13
BRPI0509253B1 (pt) 2016-06-21
BRPI0509253A (pt) 2007-09-11
US7748291B2 (en) 2010-07-06
KR101190698B1 (ko) 2012-10-12
WO2005098106A1 (fr) 2005-10-20

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