US3862650A - Heald mounting for shaft frames of looms - Google Patents

Heald mounting for shaft frames of looms Download PDF

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Publication number
US3862650A
US3862650A US436334A US43633474A US3862650A US 3862650 A US3862650 A US 3862650A US 436334 A US436334 A US 436334A US 43633474 A US43633474 A US 43633474A US 3862650 A US3862650 A US 3862650A
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US
United States
Prior art keywords
heald
shaft
loom
limbs
improvement
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
US436334A
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English (en)
Inventor
Allan William Henry Porter
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.)
Saurer AG
Original Assignee
Adolph Sauer Ag
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 Adolph Sauer Ag filed Critical Adolph Sauer Ag
Application granted granted Critical
Publication of US3862650A publication Critical patent/US3862650A/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
    • D03C9/00—Healds; Heald frames
    • D03C9/06—Heald frames
    • D03C9/0608—Construction of frame parts
    • D03C9/0616—Horizontal upper or lower rods
    • D03C9/0633—Heald bars or their connection to other frame parts

Definitions

  • Each shaft stave carries a heald mounting head having a rhombus cross-section with one diagonal perpendicular to the working plane of the loom and the other diagonal parallel to the working plane.
  • Each heald is an elongated element formed, intermediate its ends, with an eye for passage of a warp thread therethrough. The opposite ends of each heald are forked to form a pair of gripping jaws having releasable conforming snap engagement with the head ofa shaft stave.
  • This invention relates to a heald shaft, for shedding in a loom, and preferably including metallic healds and shaft staves which latter are directly mounted on or integral with the healdlaths.
  • healds of known heald shafts for looms comprise, for example, yarn, metal wire, or thick steel plates, and are retained, at both ends, by shaft staves which are passed through corresponding eyelet-shaped or hook-shaped end members of the healds.
  • the shaft staves are mounted in the shaft frame, which latter comprises heald laths and lateral frame supports.
  • heald shafts cannot be replaced without awkward detachment of v the shaft stave from the shaft frame, orby dismantling the shaft frame itself if the heald lath and the shaft stave are integrally constructed.
  • each heald is an elongated element, preferably metallic, which is formed, intermediate its ends, with an eye for passage of a warp thread therethrough,
  • Each shaft stave carries a heald mounting head which has a rhombus crosssection with one diagonal perpendicular to the working plane of the loom and the other diagonal parallel to the working plane.
  • At least one end of each heald is forked to provide a pair of angular gripping jaws arranged to have releasable conforming snap engagement with the head of a shaft stave.
  • each heald is forked into two limbs, with at least one limb having a jaw portion extending toward the other limb.
  • the limbs engage around the stave head of the respective shaft stave, and each stave head has a cross-section with a maximum width exceeding the distance between the jaw portion of one limb and the otherlimb.
  • both limbs are formed with jaw portions extending toward each other.
  • An object of the invention is to provide an improved heald shaft for shedding in a loom.
  • heald lath and the shaft stave are integral with each.
  • the single figure is an elevation view, partly in section, illustrating a heald embodying the invention as mounted on shaft staves each secured to or integral with a respective heald lath of a shaft frame.
  • a loom has healds l and 2 for retaining respective warp threads 3 and 4 in either the lower or the upper shed positions relative to the weaving or working plane 5.
  • Each heald l, 2 is supported at its top and bottom ends by shaft staves 7 and 7', respectively,each of which is mounted on or integral with a respective heald lath 6 or 6' ofa lath frame.
  • the opposite ends of each heald'member are bifurcated to form two limbs or clevis members 8 and 9 or 8' and 9'.
  • the clevis members initially diverge at equal but opposite angles to the longitudinal axis of the heald to a maximum distance a, and then are formed with a bend of approximately 90 or more so that the clevis members approach each other until the free ends of the clevis members have a spacing of b from each other.
  • the heads of the shaft staves 7 and 7. are approximately rhombus shaped in cross-section, and have respective surfaces 10 and II or 10 and 11' which are inclined, relative to the longitudinal axis of the heald l in the same way as are the clevis members 8 and 9 or 8 and 9. These surfaces-are adjoined by surfaces 12 and 13 or 12' and 13, forming jaw portions, which latter surfaces form an angle of approximately 90 or more with the respective surfaces 10 and 11 or 10' and 11, and are therefore inclined toward the longitudinal axis of heald 1.
  • One diagonal (the major axis) of the rhombus thus formed coincides with the longitudinal axis or center lineof heald 1, while the other diagonal is perpendicular thereto.
  • a heald l or 2 is engaged withshaft staves 7 and-7 by beingpressed axially against the shaft frame. Eachfree clevis member end then will slide over the surface 10 and 1 1, or over the surface 10' or 11, and the clevis members will spread until the distance between the free I ends of the clevis members has reached the maximum width a (diagonal) of the head of the shaft stave 7 or 7'. Further pressure causes the clevis members to spring back into their original state. This is because correct dimensioning of the unstressed distance b between the ends of the clevis members, of the maximum width 0 of the stave heads, and of the'clevis members 8, 9 or 8, 9' themselves, assures that the elastic limit of the heald material is not exceeded when the clevis members are spread open.
  • a particular advantage of the illustrated embodiment of the invention arises from the small distance between the heald ends and the heald laths, which enables the height of the shaft frame to be kept low.
  • a loom having a shaft frame, for shedding, including heald laths and lateral frame supports, and shaft staves mounted in the shaft frame and supporting healds guiding the warp threads, the improvement comprising, in combination, said shaft staves carrying heald mounting heads; each heald being an elongated element formed, intermediate its ends, with an eye for passage of a warp thread there-through, and at least one end of each heald being forked to form a gripping jaw means having releasable snap engagement with the head of a shaft stave.
  • each heald is forked into two limbs, at least one of which has a jaw portion extending toward the other limb; the limbs engaging around the stave head of the respective shaft stave; the stave head having a cross-section with a maximum width exceeding the distance between the jaw portion of one limb and the other limb.
  • each shaft stave having a heald mounting head is directly mounted on a heald lath.
  • each shaft stave carrying a heald mounting head is integral with a heald lath.
  • the limbs initially diverge and then converge relative to each other, the converging portions forming the jaw portions.
  • each heald mounting head is substantially a rhombus with one diagonal coinciding with the longitudinal axis of a heald.
  • the improvement claimed in claim 8 in which the limbs of the forked portions of said healds are engaged over said heald mounting heads by elastically springing the limbs apart; the difference between the maximum width of said mounting heads in a direction perpendicular to the longitudinal center lines of the healds and the distance between the free ends of the heald limbs being not greater than the elastic deformation capacity of said limbs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Golf Clubs (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US436334A 1973-01-18 1974-01-24 Heald mounting for shaft frames of looms Expired - Lifetime US3862650A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH70273A CH544826A (de) 1973-01-18 1973-01-18 Webschaft für die Fachbildung bei Webmaschinen

Publications (1)

Publication Number Publication Date
US3862650A true US3862650A (en) 1975-01-28

Family

ID=4193175

Family Applications (1)

Application Number Title Priority Date Filing Date
US436334A Expired - Lifetime US3862650A (en) 1973-01-18 1974-01-24 Heald mounting for shaft frames of looms

Country Status (10)

Country Link
US (1) US3862650A (de)
JP (1) JPS49101663A (de)
BE (1) BE809564A (de)
CH (1) CH544826A (de)
CS (1) CS183728B2 (de)
DE (1) DE2357957A1 (de)
ES (1) ES420833A1 (de)
FR (1) FR2214770A1 (de)
GB (1) GB1390492A (de)
IT (1) IT1004718B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072449A1 (de) * 1981-08-19 1983-02-23 Nissan Motor Co., Ltd. Webschaft
US4790357A (en) * 1987-08-06 1988-12-13 Steel Heddle Mfg., Inc. Harness frame slat and heddle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9413705U1 (de) * 1994-08-25 1994-10-20 Textilma Ag, Hergiswil Schaftvorrichtung
CN103849974B (zh) * 2014-03-27 2015-05-13 武汉纺织大学 一种适用于多层织物织造的开口引纬机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461497A (en) * 1946-07-03 1949-02-08 Steel Heddle Mfg Co Loom harness
US2522043A (en) * 1947-09-27 1950-09-12 Steel Heddle Mfg Co Loom harness
US3088496A (en) * 1960-11-08 1963-05-07 Cambridge Wire Cloth Loom harness

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2461497A (en) * 1946-07-03 1949-02-08 Steel Heddle Mfg Co Loom harness
US2522043A (en) * 1947-09-27 1950-09-12 Steel Heddle Mfg Co Loom harness
US3088496A (en) * 1960-11-08 1963-05-07 Cambridge Wire Cloth Loom harness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072449A1 (de) * 1981-08-19 1983-02-23 Nissan Motor Co., Ltd. Webschaft
US4790357A (en) * 1987-08-06 1988-12-13 Steel Heddle Mfg., Inc. Harness frame slat and heddle

Also Published As

Publication number Publication date
GB1390492A (en) 1975-04-16
BE809564A (fr) 1974-05-02
CS183728B2 (en) 1978-07-31
JPS49101663A (de) 1974-09-26
CH544826A (de) 1973-11-30
DE2357957A1 (de) 1974-07-25
IT1004718B (it) 1976-07-20
FR2214770A1 (de) 1974-08-19
ES420833A1 (es) 1976-04-01

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