US20040168736A1 - Device for the transfer of movements and forces in particular in dobby looms - Google Patents

Device for the transfer of movements and forces in particular in dobby looms Download PDF

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Publication number
US20040168736A1
US20040168736A1 US10/479,499 US47949903A US2004168736A1 US 20040168736 A1 US20040168736 A1 US 20040168736A1 US 47949903 A US47949903 A US 47949903A US 2004168736 A1 US2004168736 A1 US 2004168736A1
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US
United States
Prior art keywords
bands
band
lever
lever arm
movement
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.)
Abandoned
Application number
US10/479,499
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English (en)
Inventor
Fritz Rupflin
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Assigned to LINDAUER DORNIER GESELLSCHAFT MBH reassignment LINDAUER DORNIER GESELLSCHAFT MBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUPFLIN, FRITZ
Publication of US20040168736A1 publication Critical patent/US20040168736A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/001—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for conveying reciprocating or limited rotary motion
    • F16H19/003—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for conveying reciprocating or limited rotary motion comprising a flexible member
    • F16H19/006—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for conveying reciprocating or limited rotary motion comprising a flexible member for converting reciprocating into an other reciprocating motion
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • D03C1/14—Features common to dobbies of different types
    • D03C1/144—Features common to dobbies of different types linking to the heald frame

Definitions

  • the invention relates to an apparatus for the transmission of movements and forces, particularly in dobby weaving machines, according to the preamble of the patent claim 1 .
  • the subject of the invention is a level or planar transmission for the transmission of linear movements and forces from a first movement direction into a second movement direction, or for the conversion or translation of a pivoting movement into a linear movement.
  • Deflection levers which are supported rotatably about an axis and comprise at least a first and a second lever arm arranged at an angle relative to one another, are, for example, used for the changing of the movement direction. At least one lever arm is articulately connected on a linearly movable element, while the other lever arm is connected with a drive means.
  • a disadvantage of this known construction is that it is not possible therewith to transmit from the deflection lever a purely linear movement onto the first element and a purely linear movement onto the second element, or to convert the pivoting movement of the lever arm into a purely linear movement.
  • the object of the invention consists in presenting an apparatus for the transmission of movements and forces, which converts the pivoting movement of a deflection lever into a linear movement with small frictional losses and small wear.
  • the apparatus shall particularly be suitable for use in dobby weaving machines.
  • At least one of the lever arms of the deflection lever is connected with the linearly movable element by means of a first and a second flexible band, tape or strip, whereby the two bands are arranged and secured in such a manner that always only one of the bands is loaded by or subjected to a tension force.
  • the advantage is achieved that the element connected via the bands to the lever arm carries out an exact linear movement. Furthermore, the connection of the lever arm to the linearly movable element by means of the bands is characterized by low wear. The connection is play-free and is not subject to a continuous maintenance, as this is, for example, the case with a roller bearing connection.
  • both lever arms can be connected with a linearly movable element, whereby the first lever arm is connected with the first element by means of a first and a second flexible band, and the second lever arm is connected with the second element by means of a first and a second flexible band.
  • each lever arm comprises an end piece with a roll-off surface that is essentially circular arc shaped, on which the bands roll-off, whereby one end of the first band is secured at a suitable location of the end piece and one end of the second band is secured at a different suitable location of the end piece, whereby the bands cross each other and whereby the other ends of the bands are connected with the allocated element.
  • the bands cross each other and whereby the other ends of the bands are connected with the allocated element.
  • one band is loaded with or subjected to tension, while the other band is unloaded.
  • the bands are arranged lying in one another in such a manner so that these penetrate themselves in a crossing manner.
  • the first band is wider than the second band, whereby the first band comprises a slot extending over a major portion of its length, and the width of the slot is larger than the width of the second band.
  • the bands run crosswise into one another so that a high guidance stability of the connected elements arises.
  • the bands can be arranged next to one another. Thereby the bands are embodied with the same width.
  • the bands can be produced from every suitable flexible and loadable material, such as, for example, steel, synthetic plastic, or textile material. Also a combination of these materials for producing the flexible bands is conceivable.
  • FIG. 1 a side view of the apparatus according to the invention
  • FIG. 2 a side view of a band
  • FIG. 3 a top plan view onto the first band
  • FIG. 4 a top plan view onto the second band
  • FIG. 5 the apparatus in the application in a shaft drive in dobby weaving machines in a first movement condition
  • FIG. 6 the apparatus in the application in a shaft drive in dobby weaving machines in a second movement condition
  • FIG. 7 the apparatus in the application in a shaft drive in dobby weaving machines in a third movement condition.
  • FIG. 1 shows the apparatus according to the invention, which is based on a deflection lever 1 , as it is known, for example, for the deflection of movements and forces for heald frames or shafts in dobby weaving machines.
  • the deflection lever 1 comprises two lever arms 2 and 3 arranged at an angle relative to one another, through which lever arms the movements and forces are input and output.
  • the deflection lever 1 is supported pivotably about an axis 5 by means of a bearing 4 .
  • the deflection lever can further comprise a further bearing 6 for the force introduction or input.
  • the lever arms 2 or 3 respectively comprise an end piece 7 or 8 .
  • the end pieces 7 , 8 respectively comprise a circular arc shaped roll-off surface 9 , 10 .
  • Mutually crossing bands 11 , 12 or 13 , 14 are secured on the ends of the roll-off surfaces 9 , 10 , in that respectively one end of each band 11 - 14 is anchored or fixed on the end piece 7 or 8 by means of an attachment 15 or 16 .
  • the bands 11 - 14 preferably consist of spring steel, but may also be made of synthetic plastic or textile material.
  • the free ends of the bands 11 , 12 and 13 , 14 are operatively connected with respectively one linearly movable element. The force input or output is achieved through these elements. This will be described in further detail below.
  • FIGS. 2 to 4 show the bands in detail.
  • FIG. 2 shows the form of the bands 11 - 14 as seen from the side.
  • the bands can be pre-formed in such a manner, so that they correspond to the form of the roll-off surfaces 9 , 10 of the end pieces 7 , 8 .
  • the bands may, however, also be embodied straight and not pre-formed.
  • FIG. 3 shows a top plan view onto the first band 11 or 13 .
  • the band preferably has rectangular cross section and comprises a slot 17 , which extends over a major portion of the band length.
  • the second band 12 or 14 is, except for the attachment points at the ends, embodied narrower than the first band 11 or 13 .
  • the width of the second band 12 or 14 is somewhat smaller than the width of the slot 17 of the first band 11 or 13 , and can thus be guided through the slot 17 , whereby the crossing-over arrangement of the bands 11 , 12 or 13 , 14 arises, as this is shown in FIG. 1.
  • FIGS. 5 to 7 show the apparatus according to the invention in the application for the shaft drive of a dobby weaving machine. Thereby various movement conditions are shown.
  • Two deflection levers 1 a , 1 b which are pivotably arranged on the machine frame (not shown), are connected with one another via a connecting rod (thrust/tension rod) 18 .
  • the force introduction or input is achieved over the bearing 6 of the right deflection lever 1 a , whereby the deflection lever 1 a carries out a pivoting movement in the direction of the double headed arrow 28 .
  • the bands 13 , 14 of the lever arm 3 are secured to the connecting rod 18 by means of attachments 21 , 22 .
  • a clamping or tensioning device 23 can be provided on an end of the connecting rod 18 for the clamping or tight tensioning of the bands 13 , 14 .
  • the bands 13 , 14 transmit the pivoting movement of the deflection lever 1 a onto the connecting rod 18 , which, as a result, carries out a linear movement in the direction of the double headed arrow 26 .
  • the bands 13 , 14 carry out a roll-off movement on the roll-off surface of the lever arm 3 , whereby the roll-off point 31 remains fixed on an imaginary axis 29 , while the roll-off surface 10 of the lever arm 3 moves past under the roll-off point 31 . Because the roll-off point 31 does not vary or change, the pivoting movement of the deflection lever 1 a is converted into a purely linear movement of the connection rod 18 .
  • the other lever arm 2 of the deflection lever 1 a is similarly connected with a connecting rod (thrust/tension rod) 20 via bands 11 , 12 , which connecting rod 20 drives the shaft of the dobby weaving machine, and is connected therewith through a shaft coupling 25 .
  • the pivoting movement of the lever arm 2 is converted into a linear movement of the connecting rod 20 in the direction of the double headed arrow 27 .
  • the roll-off point 32 see FIG. 6, similarly remains fixed on an imaginary axis 30 , while the roll-off surface 9 of the lever arm 2 moves past under the roll-off point 32 .
  • the connecting rod 18 transmits the movement onto the second left deflection lever 1 b , which is similarly connected by means of bands with the connecting rod 18 .
  • the deflection lever 1 b is pivoted in the direction of the double headed arrow 28 and transmits this movement onto a further connecting rod (thrust/tension rod) 19 , which is connected with the weaving machine shaft via a shaft coupling 24 .
  • the force transmission between deflection lever 1 b and connecting rod 19 here similarly is achieved by means of bands, whereby the connecting rod 19 is linearly moved in the direction of the double headed arrow 27 .
  • an oscillating pivoting movement of the deflection lever is transmitted as a purely linear movement onto corresponding movable elements, which is achieved by the use and the inventive arrangement of the flexible bands 11 , 12 or 13 , 14 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Looms (AREA)
  • Transmission Devices (AREA)
US10/479,499 2001-06-02 2002-05-25 Device for the transfer of movements and forces in particular in dobby looms Abandoned US20040168736A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10127098.4 2001-06-02
DE10127098A DE10127098C1 (de) 2001-06-02 2001-06-02 Vorrichtung zur Übertragung von Bewegungen und Kräften, insbesondere in Schaftwebmaschinen
PCT/DE2002/001935 WO2002099171A2 (de) 2001-06-02 2002-05-25 Vorrichtung zur übertragung von bewegungen und kräften, insbesondere in schaftwebmaschinen

Publications (1)

Publication Number Publication Date
US20040168736A1 true US20040168736A1 (en) 2004-09-02

Family

ID=7687147

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/479,499 Abandoned US20040168736A1 (en) 2001-06-02 2002-05-25 Device for the transfer of movements and forces in particular in dobby looms

Country Status (8)

Country Link
US (1) US20040168736A1 (cs)
EP (1) EP1392902A2 (cs)
JP (1) JP2004519567A (cs)
CN (1) CN1514894A (cs)
CZ (1) CZ20033567A3 (cs)
DE (1) DE10127098C1 (cs)
RU (1) RU2260638C2 (cs)
WO (1) WO2002099171A2 (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2623613C1 (ru) * 2016-06-17 2017-06-28 Владимир Александрович Григорьев Механизм передачи движения ремизке
AT16957U1 (cs) * 2019-10-07 2021-01-15 Facc Ag

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079502A (en) * 1935-08-01 1937-05-04 Boott Mills Actuating means for harness motion of looms
US3021721A (en) * 1957-08-07 1962-02-20 American Metal Prod Vehicle steering mechanism
US3267812A (en) * 1964-07-22 1966-08-23 Gleason Works Flexible band drive
US4321148A (en) * 1980-05-22 1982-03-23 Texaco Inc. Demulsification of bitumen emulsions
US4441528A (en) * 1981-12-28 1984-04-10 Sulzer Brothers Limited Clutch arrangement for controlling the heddles of a weaving machine
US4730641A (en) * 1984-12-18 1988-03-15 Staeubli Ltd. Rotational dobby
US4832087A (en) * 1987-01-09 1989-05-23 S.A. Des Etablissements Staubli Negative dobbies of the type incorporating swinging levers
US5209269A (en) * 1991-05-07 1993-05-11 Sulzer Brothers Limited Positive eccentric dobby
US5653268A (en) * 1995-01-16 1997-08-05 Staubli Gmbh Modulator mechanism for a rotary dobby in a loom
US5944061A (en) * 1997-02-06 1999-08-31 Texo Ab Dobby with cam drum lever drive

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE579964C (de) * 1931-12-06 1934-11-12 Arnold Staub Schaftmaschine
DE702163C (de) * 1938-03-11 1941-01-31 Staeubli Geb & Co Schafthebevorrichtung fuer Webstuehle ohne Oberbau
DE857629C (de) * 1943-03-09 1952-12-01 Rueti A G Vormals Caspar Honeg Geschlossener Schaftzug fuer Webstuehle
DE871690C (de) * 1950-10-17 1953-03-26 Staeubli Geb & Co Schafthebevorrichtung
CS154950B1 (cs) * 1971-07-02 1974-04-30
US4324148A (en) * 1980-05-19 1982-04-13 Teleflex Incorporated Rotary/linear motion converter assembly (bowstring)
DE3526240A1 (de) * 1985-07-23 1987-01-29 Schlafhorst & Co W Schafthalte- und -antriebsvorrichtung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2079502A (en) * 1935-08-01 1937-05-04 Boott Mills Actuating means for harness motion of looms
US3021721A (en) * 1957-08-07 1962-02-20 American Metal Prod Vehicle steering mechanism
US3267812A (en) * 1964-07-22 1966-08-23 Gleason Works Flexible band drive
US4321148A (en) * 1980-05-22 1982-03-23 Texaco Inc. Demulsification of bitumen emulsions
US4441528A (en) * 1981-12-28 1984-04-10 Sulzer Brothers Limited Clutch arrangement for controlling the heddles of a weaving machine
US4730641A (en) * 1984-12-18 1988-03-15 Staeubli Ltd. Rotational dobby
US4832087A (en) * 1987-01-09 1989-05-23 S.A. Des Etablissements Staubli Negative dobbies of the type incorporating swinging levers
US5209269A (en) * 1991-05-07 1993-05-11 Sulzer Brothers Limited Positive eccentric dobby
US5653268A (en) * 1995-01-16 1997-08-05 Staubli Gmbh Modulator mechanism for a rotary dobby in a loom
US5944061A (en) * 1997-02-06 1999-08-31 Texo Ab Dobby with cam drum lever drive

Also Published As

Publication number Publication date
RU2260638C2 (ru) 2005-09-20
JP2004519567A (ja) 2004-07-02
WO2002099171A2 (de) 2002-12-12
DE10127098C1 (de) 2003-03-13
EP1392902A2 (de) 2004-03-03
RU2003137528A (ru) 2005-05-10
WO2002099171A3 (de) 2003-03-06
CN1514894A (zh) 2004-07-21
CZ20033567A3 (en) 2004-04-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LINDAUER DORNIER GESELLSCHAFT MBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:RUPFLIN, FRITZ;REEL/FRAME:015325/0986

Effective date: 20031112

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE