US3915198A - Device for driving warp beam in looms - Google Patents

Device for driving warp beam in looms Download PDF

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Publication number
US3915198A
US3915198A US489054A US48905474A US3915198A US 3915198 A US3915198 A US 3915198A US 489054 A US489054 A US 489054A US 48905474 A US48905474 A US 48905474A US 3915198 A US3915198 A US 3915198A
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US
United States
Prior art keywords
driving
warp beam
connecting rod
warp
gear box
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
US489054A
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English (en)
Inventor
Vladimir Svaty
Miloslav Otta
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.)
Elitex Zavody Textilniho
Original Assignee
Elitex Zavody Textilniho
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 Elitex Zavody Textilniho filed Critical Elitex Zavody Textilniho
Application granted granted Critical
Publication of US3915198A publication Critical patent/US3915198A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/06—Warp let-off mechanisms
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19023—Plural power paths to and/or from gearing
    • Y10T74/19074—Single drive plural driven
    • Y10T74/19121—Concentric

Definitions

  • the tubular warp beam situated near the differential gear box is connected to a first driving element of said gear box and is provided within its tube with a connecting rod for the second warp beam, said rod being provided with a driving lug for connection to the second driving element of said gear-box.
  • the present invention relates to a device for driving warp beams in looms with one gear mechanism, said warp beams being disposed in coaxial arrangement transversely of said looms.
  • warp beams are used either of the one part, full width type, or two warp beams mounted one beside one another.
  • differential gears When using two warp beams, differential gears are used for the purpose of an even distribution of the driving force.
  • the common disadvantage of said differential gears consists in that the transmission of the force to the remote warp beam is rather complicated, since an independent shaft mounted along the whole width of the loom has been required.
  • this in dependent shaft and all its appurtenant accessories such as bearings, pinions and similar parts are useless when a full width warp beam is used.
  • the present invention has among its objects the provision of such a device which has all the advantages of a differential drive when using two warp beams, and which does not require further excessive elements when a full width warp beam is used.
  • the hollow warp beam being situated nearer the gear box or gear mechanism is connected to one driving element of said gear box, and is provided within its tube with a connecting rod for the second warp beam, said rod being provided with a driving lug for connecting it to the second driving element of said gear box.
  • FIG. 1 is a view in longitudinal section through the differential drive housing and two coaxially mounted warp beams on a loom (not shown);
  • FIG. 2 is a view in longitudinal section through the differential drive housing and mechanism for connecting the inner driving element of the differential housing to the connecting rod for the remote warp beams.
  • Gear box 2 comprises a driving worm 3 which is in mesh with a worm wheel 4. At least two planet wheels 5 are mounted in worm wheel 4 by means of which the driving force from worm 3 is evenly distributed between crown gears 6 and 7 which mesh with planet wheels 5.
  • crown gear 6 is connected by a key 6a to a shaft 9 which is journalled for free rotation by means of sleeve bearings 8; the hub 10 of gear 7 is attached to a sleeve 12 by means ofa key 11.
  • Sleeve 12 forms the outer coaxial element of differential gear mechanism or gear box 2.
  • Sleeve 12 is further connected at its left end to a sleeve 13 (FIG. 1) mounted rotatably in a fixed bed 14, a first warp beam 15 being driven by said sleeve 13, the tube 16 of warp beam 15 being mounted at its other, right end, rotatably in a fixed holder 17 which is mounted in the transverse center of the loom (not shown).
  • the second crown gear 6 is fixedly mounted on shaft 9, which is mounted for free rotation on the axis of the differential gear box 2 and forms e.g. the inntr coaxial driving element.
  • shaft 9 At its right end 18 (FIG. 2) shaft 9 has an axially displaceable sleeve 19 telescoped thereover; the end 18 of shaft 9 and the mating inner profile of sleeve 18 are of a non-circular cross-section, e.g. a square crosssection.
  • the end 18 of shaft 9 is further longitudinally slotted and in the slot 18a thus formed there is mounted a transverse pin 20 which is affixed in axially displaceable sleeve 19.
  • a rod 21 is fixedly connected to pin 20, said tie rod passing through an axial bore in shaft 9 to a position at the left beyond the differential gear box 2, where it is threaded at joint 22 and receives a nut 23 which is turned by means of a crank 24.
  • the displaceable sleeve 19 has an inner profile corresponding in scope to a driving lug 25 at the left of a connecting rod 26 which is mounted for free rotation by means of openings in partitions 27 in the space of tube 16 of warp beam 15.
  • the right end of connecting rod 26 has a driving lug 28 which drivingly engages the modified opening of e.g. square shape in the partition 29 of the second (right) warp beam 30 and provides for the transmission of driving force from the inner coaxial driving member of a differential gear box via shaft 9.
  • the warp beam 30 is rotatably fastened in affixed at its left end holder 17 by means of a journal sleeve 31 at the other side of frame member 32 of the loom.
  • the device according to the present invention operates as follows:
  • warp beam 30 When mounting both warp beams 15 and 30 in the loom, warp beam 30 is fastened first and connecting rod 26 is inserted into warp beam 15 before its mounting in the loom in such manner that none of its driving lugs 25 and 28 driving engages the ends of tube 16 of said warp beam 15. Thereafter, beam 15 is inserted into the holder 17 and bed 14. Crank 24 of nut 23 is then turned in such manner, that tie rod 21 is displaced to the right, that is, threaded end 22 of tie rod 9 is moved inside the differential gear box 2 by a coil compression spring 33 acting in the said direction (to the right) upon the axially displaceable sleeve 19.
  • the said axially displaceable sleeve 19 is now slid onto or bears against the front of driving lug 25 on connecting rod 26.
  • a slight turning of the remote warp beam may possibly have to be performed.
  • the two warp beams 15 and 30 are mounted in the loom, said warp beam 15 situated nearer the differential gear box 2 being connected with an outer coaxial driving member of said gear box, i. e. sleeve 12, and the other, further warp beam 30 being connected by connecting rod 26 to the inner coaxial driving member of said gear box 2, i.e. to shaft 9 via the axially displaceable sleeve 19 arranged thereon.
  • crank 24 Upon removing warp beam 15, crank 24 is turned in the opposite direction, the axially displaceable sleeve 19 being shifted to the left inside gear box 2 by means of tie rod 21 and pin 20.
  • connecting rod 26 Upon this motion of the axially displaceable sleeve 19, connecting rod 26 begins to be displaced axially to the engagement of the spring loaded ball 34 with the circumferential groove on driving lug 25, permiting such movement, until the end of its driving lug 25 engages the front end' 36 of shaft 9, the other driving lug 28 of connecting rod 26 being then removed from the opening in partition 29 of warp beam 30.
  • a device for driving coaxially mounted tubular warp beams in looms said beams being mounted transversely of a loom and driven by a single differential gear box at one end of the aligned beams, comprising means connecting the first warp beam, situated nearer the gear box, an axially extending connecting rod for a second warp beam connected to one driving member of the gear box and extending through the space within the first warp beams, the connecting rod and the second warp beam being provided with interfitting driving formations, one driving member being provided with an axially displaceable sleeve which is controllable from outside the gear box and has a non-circular crosssection which corresponds in shape to the driving lug at the end of the connecting rod for driving second warp beam, a tie rod passing axially through the driving member, the axially displaceable sleeve being connected to the tie rod, the tie rod being threaded on its outer free end and a moving nut mounted thereon, the rod being connected at its other end of the
  • a device as claimed in claim 2 comprising a spring which biases and loans the axially displaceable sleeve.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US489054A 1973-07-16 1974-07-16 Device for driving warp beam in looms Expired - Lifetime US3915198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS5074*BA CS165163B1 (cs) 1973-07-16 1973-07-16

Publications (1)

Publication Number Publication Date
US3915198A true US3915198A (en) 1975-10-28

Family

ID=5394909

Family Applications (1)

Application Number Title Priority Date Filing Date
US489054A Expired - Lifetime US3915198A (en) 1973-07-16 1974-07-16 Device for driving warp beam in looms

Country Status (3)

Country Link
US (1) US3915198A (cs)
JP (1) JPS5719220B2 (cs)
CS (1) CS165163B1 (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261465A (en) * 1991-06-19 1993-11-16 Ergotron S.A.S. Di Dondi Benelli Dore & C. System for controlling the unwinding of the warp in a loom with at least two warp beams
US6199596B1 (en) * 1999-05-31 2001-03-13 Tsudakoma Kogyo Kabushiki Kaisha Let-off warp beam coupling device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797955A (en) * 1929-06-25 1931-03-24 Ralph R Hall Sectional warp beam
US2617447A (en) * 1948-09-23 1952-11-11 Steel And Alloy Tank Company Warp beam mount
US2908187A (en) * 1955-05-19 1959-10-13 Illinois Tool Works Reduction gearing unit
US3534779A (en) * 1967-04-14 1970-10-20 Hermann Wangner Warp beam arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1797955A (en) * 1929-06-25 1931-03-24 Ralph R Hall Sectional warp beam
US2617447A (en) * 1948-09-23 1952-11-11 Steel And Alloy Tank Company Warp beam mount
US2908187A (en) * 1955-05-19 1959-10-13 Illinois Tool Works Reduction gearing unit
US3534779A (en) * 1967-04-14 1970-10-20 Hermann Wangner Warp beam arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5261465A (en) * 1991-06-19 1993-11-16 Ergotron S.A.S. Di Dondi Benelli Dore & C. System for controlling the unwinding of the warp in a loom with at least two warp beams
US6199596B1 (en) * 1999-05-31 2001-03-13 Tsudakoma Kogyo Kabushiki Kaisha Let-off warp beam coupling device

Also Published As

Publication number Publication date
JPS5719220B2 (cs) 1982-04-21
CS165163B1 (cs) 1975-11-28
JPS5036763A (cs) 1975-04-07

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