US3895658A - Paper card reading apparatus in a dobby machine - Google Patents

Paper card reading apparatus in a dobby machine Download PDF

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Publication number
US3895658A
US3895658A US430037A US43003774A US3895658A US 3895658 A US3895658 A US 3895658A US 430037 A US430037 A US 430037A US 43003774 A US43003774 A US 43003774A US 3895658 A US3895658 A US 3895658A
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US
United States
Prior art keywords
reading
loom
wheel
transmitted
dobby
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.)
Expired - Lifetime
Application number
US430037A
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English (en)
Inventor
Akira Koyama
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.)
Yamada Dobby Co Ltd
Original Assignee
Yamada Dobby Co Ltd
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 Yamada Dobby Co Ltd filed Critical Yamada Dobby Co Ltd
Application granted granted Critical
Publication of US3895658A publication Critical patent/US3895658A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards 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
    • D03C1/22—Needles; Needle boxes; Needle boards

Definitions

  • intermittent drive mechanism of a paper card comprises a sprocket wheel attached at an end of a card cylinder shaft and a disc provided with a driving pin, wherein at .every revolution of the disc, the pin interlocks with a tooth of the sprocket wheel, so that intermittent rotation of the paper card corresponding to one tooth stroke is performed.
  • intermittent drive mechanism for a paper card and a feeler needle release mechanism are very complicated, moreover a timing at interlocking of a paper card and a feeler needle is severe, thereby a high-speed operation of a dobby machine is interfered with.
  • the reading lever for pushing steadily the wheel towards the paper card surface, wherein teeth of the wheel are inserted in specified holes in the paper card at a continuous drive state of the paper card so that instruction of fabric wear may be transmitted to a driving part of a dobby machine.
  • a principal object of the present invention is to operate a Dobby machine smoothly at a high speed without necessity of releasing a feeler needle to a specified hole in a paper card at a continuous drive of the paper card.
  • Another object of the present invention is to eliminate a complicated mechanism for intermittent drive in the prior art and to simplify the structure
  • FIGS. I and 2 illustrate an embodiment according to the present invention wherein instruction of a card is electrically transmitted to a dobby drive part, and
  • FIG. I shows a state of a wheel being pulled away from the paper card continuously rotating
  • FIG. 2 shows a state of a wheel being inserted in the paper card continuously rotating.
  • FIGS. 3 and 4 illustrate an embodiment wherein instruction of a card is mechanically transmitted to a Dobby drive part
  • FIG. 3 shows a state of a wheel being inserted in a hole of a paper card
  • FIG. 4 shows a state of a wheel being pulled away from the paper card.
  • a reading lever 2 a lower part of which is provided with a pivotably mounted wheel I, is pivotably mounted by a supporting shaft 3 on a machine base.
  • an elastic member 4 such as a flat plate is provided in a manner that one end is fixed to a body, and the elastic member 4 pushes the reading lever 2 downwards so that the wheel 1 is contacted with a surface of the paper card 5 which is an instruction record having holes corresponding to weaving instructions to be transmitted to a loom.
  • Teeth of the wheel I comprise for example, a cross form consisting of a first tooth la, a second tooth lb, a third tooth 1c and a fourth tooth 1d as shown in the drawing.
  • Each of these teeth la,lb, I6 and 1d slides on a paper card 5 as the paper card continuously rotates, thereby these teeth may be readily inserted to or pulled away from holes 5a,5b, 5c,5d provided on a surface of the paper card.
  • One end of the elastic member 4 is connected to a circuit of a control magnet 7 including an energizing source 6, while the other end is constituted to contact with a terminal 6a of the source 6.
  • a feeler needle 8 which operates a hook l1 pivoted to a vertical lever 10 through a supporting wire 9.
  • a paper card is continuously rotated and intermittent drive as in conventional methodis not performed. so allowance for timing for sensing is avoided.
  • said instruction record having thereon holes representative of and corresponding to weaving instructions to be transmitted to a loom, a toothed reading wheel having peripheral teeth insertable into said holes for reading of said instruction record, a reading lever pivotally mounting said reading wheeland elastically biased for engaging the teeth of said reading wheel with the driven instruction record for frictional drive of said reading wheel therefrom and insertion of said teeth into said holes when correspondence ofa tooth and a hole occurs and retraction of the teeth of said wheel from said holes occurs as said instruction record is rotationally driven, and instruction transmitting means including said reading lever for transmitting the reading of said holes of said instruction record.
  • a reading apparatus in a loom Dobby for reading weaving instructions to be transmitted to a loom according to claim 1, including said instruction record medium, said instruction record comprising a tape loop.
  • a reading apparatus in a loom Dobby for reading weaving instructions to be transmitted to a loom according to claim 1, in which said reading wheel comprises at least three teeth.
  • a reading apparatus in a loom Dobby for reading weaving instructions to be transmitted to a loom according to claim 1, in which said instruction transmitting means comprises feeler needles means for sensing the position of said reading lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Conveying Record Carriers (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Ink Jet (AREA)
US430037A 1972-12-29 1974-01-02 Paper card reading apparatus in a dobby machine Expired - Lifetime US3895658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP732485A JPS5136829B2 (enrdf_load_stackoverflow) 1972-12-29 1972-12-29

Publications (1)

Publication Number Publication Date
US3895658A true US3895658A (en) 1975-07-22

Family

ID=11530644

Family Applications (1)

Application Number Title Priority Date Filing Date
US430037A Expired - Lifetime US3895658A (en) 1972-12-29 1974-01-02 Paper card reading apparatus in a dobby machine

Country Status (7)

Country Link
US (1) US3895658A (enrdf_load_stackoverflow)
JP (1) JPS5136829B2 (enrdf_load_stackoverflow)
CH (1) CH571084A5 (enrdf_load_stackoverflow)
ES (1) ES421875A1 (enrdf_load_stackoverflow)
FR (1) FR2212451B1 (enrdf_load_stackoverflow)
GB (1) GB1454080A (enrdf_load_stackoverflow)
IT (1) IT1002568B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1555797A (en) * 1976-10-16 1979-11-14 Bonas Machine Co Pattering means

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085459A (en) * 1935-08-03 1937-06-29 Saurer Ag Adolph Pattern mechanism for looms and the like
US2690770A (en) * 1948-10-28 1954-10-05 Staubli Geb & Co Device for and method of reading picks from pattern cards in looms
US2926703A (en) * 1960-03-01 Controlling device
US3403705A (en) * 1965-07-29 1968-10-01 Fumat S A Dobby for looms
US3724511A (en) * 1970-05-29 1973-04-03 Staeubli Ag Device for controlling a wedge coupling, particularly in a dobby

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926703A (en) * 1960-03-01 Controlling device
US2085459A (en) * 1935-08-03 1937-06-29 Saurer Ag Adolph Pattern mechanism for looms and the like
US2690770A (en) * 1948-10-28 1954-10-05 Staubli Geb & Co Device for and method of reading picks from pattern cards in looms
US3403705A (en) * 1965-07-29 1968-10-01 Fumat S A Dobby for looms
US3724511A (en) * 1970-05-29 1973-04-03 Staeubli Ag Device for controlling a wedge coupling, particularly in a dobby

Also Published As

Publication number Publication date
IT1002568B (it) 1976-05-20
DE2365138A1 (de) 1974-07-11
FR2212451A1 (enrdf_load_stackoverflow) 1974-07-26
DE2365138B2 (de) 1976-03-11
CH571084A5 (enrdf_load_stackoverflow) 1975-12-31
ES421875A1 (es) 1976-09-16
FR2212451B1 (enrdf_load_stackoverflow) 1976-10-08
JPS5136829B2 (enrdf_load_stackoverflow) 1976-10-12
GB1454080A (en) 1976-10-27
JPS4987854A (enrdf_load_stackoverflow) 1974-08-22

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