US3724511A - Device for controlling a wedge coupling, particularly in a dobby - Google Patents

Device for controlling a wedge coupling, particularly in a dobby Download PDF

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Publication number
US3724511A
US3724511A US00146959A US3724511DA US3724511A US 3724511 A US3724511 A US 3724511A US 00146959 A US00146959 A US 00146959A US 3724511D A US3724511D A US 3724511DA US 3724511 A US3724511 A US 3724511A
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US
United States
Prior art keywords
control arm
arm
ring
wedge
reading
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00146959A
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English (en)
Inventor
W Kleiner
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Staeubli AG
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Staeubli AG
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Publication date
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies

Definitions

  • the control of the wedge is effected by means of a ring (14) movably arranged 1 around the-driving shaft, on which ring the wedges slides.
  • One end of an arm (10) is secured-to the ring, which arm carries on its other end the reading needle (4).
  • the arm is supported through a slot (56) on a stationary member (57).
  • the springs (49,50) acting onto the arm (10) and the supporting of the arm in the slot' cause and permit the arm to tilt and yield in response to the position of the wedge and the needle.
  • the invention relates to a device for controlling a wedge coupling, particularly in a dobby, which coupling is positioned in a continuously or discontinuously rotating driving shaft.
  • Said coupling consists of an eccentric ring arranged on the shaft and provided with a radially slideable wedge and a connecting rod encircling'the ring.
  • the wedge responds to a pattern card and engages a recess of the driving shaft or the connecting rod. Movement of the wedge is caused by a ring of a control arm, which ring encircles the driving shaft, whereby the wedge, during the rotation of the driving shaft, slides along the ring.
  • the invention also consists in a method for operating this device.
  • a pattern card is used as a release member for the control movement, which pattern card is provided with openings, cams or lugs and is read by a control mechanism, preferably a reading mechanism.
  • the reading member in this case the needle reading" the openings, should be connected as directly as possible to I the part moving the wedge.
  • the reading needles form one unit with the control arm to providean arrangement which permits the start of the control process for the next pick before the movement of the heddle frame for the preceding pick has been concluded. This minimizes the period of standstill for indexing to the nextposition of the pattern card on the pattern card cylinder.
  • the arm is provided on the end remote from the ring with a needie for the reading of a pattern card or is in effective connection with a pattern card reading mechanism and that the arm has a slot approximately centrally arranged thereinthrough which slot said arm is supported on a stationary member. Further, in the direction of the long axis of the slot a first tension spring and between slot and reading needle parallel thereto a second tentionary member when the needle stands on the pattern card or is lifted off from same by the lifting rod.
  • the arm causes the wedge to engage the shaft and in the I upper shed position of the eccentric ring by means of a suitable opening in the pattern card the arm causes the wedge to engage the connecting rod.
  • FIGS. 1 to each illustrate a schematic front view of the wedge coupling with the control members in various positions, namely FIG. 1 illustrates the coupling in lower shed position of the heddle frame and a partially lifted reading needle,
  • FIG. 2 illustrates the coupling with a read-in needle and a wedge positioned for changing the heddle frame from the lower shed position to the upper shed position
  • FIG. 3 illustrates the coupling in the upper shed'position of the heddle frame and a lifted reading needle
  • FIG. 4 illustrates the coupling with read-in needle and a wedge positioned for keeping the heddle frame in the upper shed position
  • FIG. 5 illustrates the coupling in the moment of change of the heddle frame from the upper shed into the lower shed, whereby the reading needle is already lifted and the pattern card indexed for the next pick reading.
  • FIG. 6 is in an'enlarged scale a cross-sectional view along the line VI-VI of FIG. 3.
  • the pattern card 62 provided with the openings 3,3 is moved together with the card cylinder 61.
  • a needle 4 is provided on one end ofthe control arm 10 and serves respect to the driving shaft and the connecting rod 18 is positioned on said eccentric ring 28.
  • the connecting rod actuates about the pivot point 48 the motion member 20 for the heddle. frame 44 (which is only schematically indicated in the drawing).
  • the wedge 13 is supported radially slidingly on the eccentric ring 28,
  • a lifting rod is arranged between the reading needle and the second tension spring, so that the reading needle can be lifted against the pull of the second spring from the pattern card for the purpose of indexing to the next position of same.
  • the operation of this device is characterized in that in the lower shed position of the eccentric ring the arm is supported on the stationary member under the effect of the first spring when the needle. stands on the pattern card or sinks into an opening, that the arm in the slot is lifted from the stationary member when the lifting rod lifts the needle from the pattern card, and that in the upper shed position of the eccentric ring the arm is supported on the stationary member under the effect of the first spring when'the needle falls into an opening of the pattern card and that the arm is lifted from the staeither the recess 29,29',0f the driving shaft 15 or the zone 30,30 which is formed by the ends of the semicircular guide rails 16.
  • These guide rails consist of spring steel and have approximately radially directed slots 17 which serve for guiding the rail on the pins 31 secured to the connecting rod.
  • the ring 14 is offset and has a collar 34 which extends axially beyond the plane of the control arm 10 as best illustrated in FIG. 6 and which slides in a groove 27 of the wedge and thus controls same relative to its position on the eccentric ring 28.
  • the two springs 49 and 50 are mounted on the frame of the dobby at 55 and engage the control arm 10.
  • the spring 49 acts in the direction of the slot 56 and is weaker than the spring 50 between the slot 56 and
  • FIGS. 1 to 5 wherein only those reference numerals which serve the discussion are entered but where used the numerals correspond to those used in FIG. 1.
  • FIG. 1 illustrates the position of the wedge coupling in lower shed position of the heddle frame 44, namely the wider side of the eccentric ring 28 is positioned below the driving shaft 15.
  • the lifting rod 60 has partially lifted the part of the arm which carries the needle 4.
  • the pattern card 62 has been indexed to the next pick reading (opening 3).
  • the spring 49 has pulled the part of the arm 10 with the ring 34 downwardly in the slot 56 until the stationary member 57 abuts in the slot 56. This position is maintained even when the lifting rod 60 separates from the arm 10, namely is lowered, and no opening is provided in the pattern card 62.
  • the wedge 13 is positioned in the zone 30 and does not engage the recess 29 of the driving shaft 15.
  • the needle 4 finds an opening in the pattern card 62 and the lifting rod 60 swings away from the. arm 10, the arm will pivot about the stationary member 57 under the effect of the spring 50 and will, acting through the ring 34, cause the wedge 13 and the shaft to engage, whereby the arm 10 with its slot 56 is held on the stationary member 57 by the effect of the spring 49. This produces the position according to FIG. 2.
  • the lifting rod 60 is now lowered and the needle 4 reads the next opening 3 (FIG. 4). Since the needle is here shown as finding an opening, the arm 10 swings and lifts the wedge 13 into the space 30' where it is secured against rotation. The eccentric ring 28 is disengaged from the shaft 15. Thus, the heddle frame will during the next rotation of the shaft 15 for 180 remain in the upper shed.
  • FIG. 5 illustrates an intermediate position, namely after a 90 rotation of the driving shaft 15 with a wedge 13 engaging the shaft 15 as a result of the lack of an Opening in the pattern card 62.
  • the heddle frame 44 now moves from the upper shed to the lower shed position.
  • the wedge 13 which was moved with the shaft 15 slides during this rotation with its head along the rail 16 which prevents a disengagement of the wedge from the shaft.
  • the part of the arm 10 with the needle 4 has already been lifted by the rod 60 and the pattern card 62 which at this point does not have an opening is just now being indexed to the next position.
  • the arm 10 cannot be overloaded because its support by means of the slot 56 on the stop 57 permits yielding.
  • the spring 49 always returns the arm 10 into its normal position on the stop 57.
  • the arm 10 may be provided with any other known pattern card reading mechanism.
  • an opening in the card does not always mean the same type of control of the heddle frame.
  • the heddle frame is moved into the upper shed position for example with an opening, while if no opening was provided, the heddle frame remained in the lower shed position independent of the position of the heddle frame during the preceding pick insertion.
  • each pick must take into account the position of the eccentric ring from the preceding pick.
  • the heddle frame is lifted into the upper shed position during the next rotation of the shaft for If, however, the pattern card does not have an opening during the initial position according to FIG. 1, then the heddle frame remains in the lower shed position for the next pick insertion.
  • pattern card reading means for reading said pattern card and selectively controlling the movement of said wedge and thereby the coupling of said eccentric ring to said drive shaft, said pattern card reading means including:
  • control arm having means defining a reading needle on one end thereof adapted to engage said pattern card
  • pivot means for pivotally supporting said control arm, said pivot means being located between said reading needle and said ring;
  • lifting rod means for drivingly pivoting said control arm to effect a coupling or uncoupling of said drive shaft and said eccentric ring.
  • said pivot means comprises an elongated slot in said control arm and a pivot member received in said slot, said pivot member being smaller in size than said slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Transmission Devices (AREA)
US00146959A 1970-05-29 1971-05-26 Device for controlling a wedge coupling, particularly in a dobby Expired - Lifetime US3724511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH803670A CH512605A (de) 1970-05-29 1970-05-29 Vorrichtung zum Steuern einer Keilkupplung insbesondere in einer Schaftmaschine, und Verfahren zum Betrieb derselben

Publications (1)

Publication Number Publication Date
US3724511A true US3724511A (en) 1973-04-03

Family

ID=4334155

Family Applications (1)

Application Number Title Priority Date Filing Date
US00146959A Expired - Lifetime US3724511A (en) 1970-05-29 1971-05-26 Device for controlling a wedge coupling, particularly in a dobby

Country Status (8)

Country Link
US (1) US3724511A (OSRAM)
JP (1) JPS4833783B1 (OSRAM)
CH (1) CH512605A (OSRAM)
CS (1) CS158299B2 (OSRAM)
ES (1) ES197189Y (OSRAM)
FR (1) FR2093748A5 (OSRAM)
GB (1) GB1354905A (OSRAM)
SU (1) SU374845A3 (OSRAM)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892645A (OSRAM) * 1972-02-17 1973-12-01
US3895658A (en) * 1972-12-29 1975-07-22 Yamada Dobby Co Ltd Paper card reading apparatus in a dobby machine
US4000761A (en) * 1974-07-01 1977-01-04 Staeubli Ltd. Device for controlling the sequence of movement of individual heddle frames of a weaving machine
US4336829A (en) * 1978-09-22 1982-06-29 Maschinenfabrik Carl Zangs Aktiengesellschaft Dobby mechanism
US4367770A (en) * 1979-08-16 1983-01-11 Staeubli Ltd. Rotational dobby
US4493346A (en) * 1981-01-09 1985-01-15 Textilma Ag Coupling arrangement usable in a textile machine
US4552184A (en) * 1982-12-22 1985-11-12 Staeubli Ltd. Method and apparatus for controlling a rotation dobby
US4597417A (en) * 1983-10-07 1986-07-01 Staeubli Ltd. Lifting unit for a rotational dobby
US4614211A (en) * 1983-06-16 1986-09-30 Staeubli Ltd. Dobby
US4625767A (en) * 1984-01-28 1986-12-02 Staeubli Ltd. Key coupling for a rotation dobby
CN103556346A (zh) * 2013-10-31 2014-02-05 江苏万工科技集团有限公司 提花机开口机构
US20170167059A1 (en) * 2014-07-18 2017-06-15 Nv Michel Van De Wiele Shed forming device for a weaving machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528504C2 (de) * 1985-08-08 1993-10-07 Kaiser Gmbh & Co Kg Steuervorrichtung einer Rotations-Schaftmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1256644A (en) * 1917-01-20 1918-02-19 Peter Barlow Dobby used in looms for weaving.
US2926703A (en) * 1960-03-01 Controlling device
US3468347A (en) * 1966-10-05 1969-09-23 Mecaniques Verdol Soc Heddle frame actuating gearing for looms
US3554238A (en) * 1967-04-25 1971-01-12 Staeubli Ag Dobbies

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1305638A (fr) * 1961-09-15 1962-10-05 Staubli Geb & Co Dispositif de formation de la foule pour métiers à tisser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926703A (en) * 1960-03-01 Controlling device
US1256644A (en) * 1917-01-20 1918-02-19 Peter Barlow Dobby used in looms for weaving.
US3468347A (en) * 1966-10-05 1969-09-23 Mecaniques Verdol Soc Heddle frame actuating gearing for looms
US3554238A (en) * 1967-04-25 1971-01-12 Staeubli Ag Dobbies

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4892645A (OSRAM) * 1972-02-17 1973-12-01
US3895658A (en) * 1972-12-29 1975-07-22 Yamada Dobby Co Ltd Paper card reading apparatus in a dobby machine
US4000761A (en) * 1974-07-01 1977-01-04 Staeubli Ltd. Device for controlling the sequence of movement of individual heddle frames of a weaving machine
US4336829A (en) * 1978-09-22 1982-06-29 Maschinenfabrik Carl Zangs Aktiengesellschaft Dobby mechanism
US4367770A (en) * 1979-08-16 1983-01-11 Staeubli Ltd. Rotational dobby
US4493346A (en) * 1981-01-09 1985-01-15 Textilma Ag Coupling arrangement usable in a textile machine
US4552184A (en) * 1982-12-22 1985-11-12 Staeubli Ltd. Method and apparatus for controlling a rotation dobby
US4614211A (en) * 1983-06-16 1986-09-30 Staeubli Ltd. Dobby
US4597417A (en) * 1983-10-07 1986-07-01 Staeubli Ltd. Lifting unit for a rotational dobby
US4625767A (en) * 1984-01-28 1986-12-02 Staeubli Ltd. Key coupling for a rotation dobby
CN103556346A (zh) * 2013-10-31 2014-02-05 江苏万工科技集团有限公司 提花机开口机构
CN103556346B (zh) * 2013-10-31 2015-01-07 江苏万工科技集团有限公司 提花机开口机构
US20170167059A1 (en) * 2014-07-18 2017-06-15 Nv Michel Van De Wiele Shed forming device for a weaving machine
US9915013B2 (en) * 2014-07-18 2018-03-13 Nv Michel Van De Wiele Shed forming device for a weaving machine

Also Published As

Publication number Publication date
FR2093748A5 (OSRAM) 1972-01-28
JPS4833783B1 (OSRAM) 1973-10-16
GB1354905A (en) 1974-06-05
SU374845A3 (OSRAM) 1973-03-20
ES197189U (es) 1975-04-01
ES197189Y (es) 1975-09-01
CS158299B2 (OSRAM) 1974-10-15
CH512605A (de) 1971-09-15
DE2036646A1 (de) 1971-12-09

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